diff --git a/api/v1/entries/stories.php b/api/v1/entries/stories.php
index c463e0906e..c28ef766ed 100644
--- a/api/v1/entries/stories.php
+++ b/api/v1/entries/stories.php
@@ -68,7 +68,7 @@ class storiesEntry extends entry
         if(!$productID and isset($this->requestBody->product)) $productID = $this->requestBody->product;
         if(!$productID) return $this->sendError(400, 'Need product id.');
 
-        $fields = 'title,spec,verify,module,reviewer,type,parent,moduleOptionMenu,source,sourceNote,category,pri,estimate,mailto,keywords,notifyemail,uid,URS,status';
+        $fields = 'title,spec,verify,module,reviewer,type,parent,moduleOptionMenu,source,sourceNote,category,pri,estimate,mailto,keywords,notifyemail,uid,status';
         $this->batchSetPost($fields);
 
         $this->setPost('plans', array($this->request('plan', 0)));
@@ -85,7 +85,7 @@ class storiesEntry extends entry
         $control = $this->loadController('story', 'create');
         $this->requireFields('title,spec,pri,category');
 
-        $control->create($productID, $this->param('branch', 0), $this->param('moduleID', 0), $this->param('storyID', 0), $this->param('objectID', 0), $this->param('bugID', 0));
+        $control->create($productID, $this->param('branch', 0), $this->param('moduleID', 0), $this->param('storyID', 0), $this->param('objectID', 0), $this->param('bugID', 0), 0, 0, '', $this->param('type', 'story'));
 
         $data = $this->getData();
         if(isset($data->status) and $data->status == 'fail') return $this->sendError(zget($data, 'code', 400), $data->message);
diff --git a/api/v1/entries/storyclose.php b/api/v1/entries/storyclose.php
index c20d57302d..1b32185e85 100644
--- a/api/v1/entries/storyclose.php
+++ b/api/v1/entries/storyclose.php
@@ -20,7 +20,7 @@ class storyCloseEntry extends entry
      */
     public function post($storyID)
     {
-        $fields = 'closedReason,duplicateStory,childStories,comment';
+        $fields = 'closedReason,duplicateStory,comment';
         $this->batchSetPost($fields);
 
         $control = $this->loadController('story', 'close');
diff --git a/config/filter.php b/config/filter.php
index f6dbdb6351..5b063bc6f0 100755
--- a/config/filter.php
+++ b/config/filter.php
@@ -46,6 +46,8 @@ $filter->product      = new stdclass();
 $filter->branch       = new stdclass();
 $filter->qa           = new stdclass();
 $filter->story        = new stdclass();
+$filter->epic         = new stdclass();
+$filter->requirement  = new stdclass();
 $filter->task         = new stdclass();
 $filter->execution    = new stdclass();
 $filter->testcase     = new stdclass();
@@ -77,121 +79,126 @@ $filter->projectplan  = new stdclass();
 $filter->kanban       = new stdclass();
 $filter->group        = new stdclass();
 
-$filter->index->index             = new stdclass();
-$filter->block->default           = new stdclass();
-$filter->block->create            = new stdclass();
-$filter->block->edit              = new stdclass();
-$filter->my->work                 = new stdclass();
-$filter->my->contribute           = new stdclass();
-$filter->bug->batchcreate         = new stdclass();
-$filter->bug->browse              = new stdclass();
-$filter->bug->default             = new stdclass();
-$filter->bug->create              = new stdclass();
-$filter->bug->export              = new stdclass();
-$filter->bug->ajaxgetproductcases = new stdclass();
-$filter->bug->ajaxgetproductbugs  = new stdclass();
-$filter->caselib->create          = new stdclass();
-$filter->doc->create              = new stdclass();
-$filter->doc->browse              = new stdclass();
-$filter->doc->view                = new stdclass();
-$filter->doc->tablecontents       = new stdclass();
-$filter->doc->productspace        = new stdclass();
-$filter->doc->projectspace        = new stdclass();
-$filter->doc->showfiles           = new stdclass();
-$filter->doc->default             = new stdclass();
-$filter->api->default             = new stdClass();
-$filter->api->index               = new stdClass();
-$filter->api->create              = new stdClass();
-$filter->api->edit                = new stdClass();
-$filter->mail->ztcloud            = new stdclass();
-$filter->mail->batchdelete        = new stdclass();
-$filter->misc->checkupdate        = new stdclass();
-$filter->file->download           = new stdclass();
-$filter->product->browse          = new stdclass();
-$filter->product->all             = new stdclass();
-$filter->product->default         = new stdclass();
-$filter->product->index           = new stdclass();
-$filter->product->export          = new stdclass();
-$filter->product->project         = new stdclass();
-$filter->product->roadmap         = new stdclass();
-$filter->product->dynamic         = new stdclass();
-$filter->branch->default          = new stdclass();
-$filter->program->default         = new stdclass();
-$filter->program->pgmproject      = new stdclass();
-$filter->program->prjbrowse       = new stdclass();
-$filter->program->project         = new stdclass();
-$filter->program->product         = new stdclass();
-$filter->program->browse          = new stdclass();
-$filter->program->export          = new stdclass();
-$filter->program->pgmbrowse       = new stdclass();
-$filter->program->export          = new stdclass();
-$filter->program->ajaxgetdropmenu = new stdclass();
-$filter->project->default         = new stdclass();
-$filter->project->browse          = new stdclass();
-$filter->project->story           = new stdclass();
-$filter->project->export          = new stdclass();
-$filter->project->task            = new stdclass();
-$filter->project->execution       = new stdclass();
-$filter->project->testcase        = new stdclass();
-$filter->projectstory->story      = new stdclass();
-$filter->qa->default              = new stdclass();
-$filter->story->create            = new stdclass();
-$filter->story->export            = new stdclass();
-$filter->story->batchcreate       = new stdclass();
-$filter->story->track             = new stdclass();
-$filter->sso->getbindusers        = new stdclass();
-$filter->sso->gettodolist         = new stdclass();
-$filter->sso->getuserpairs        = new stdclass();
-$filter->sso->login               = new stdclass();
-$filter->sso->logout              = new stdclass();
-$filter->git->cat                 = new stdclass();
-$filter->git->diff                = new stdclass();
-$filter->svn->cat                 = new stdclass();
-$filter->svn->diff                = new stdclass();
-$filter->task->create             = new stdclass();
-$filter->task->export             = new stdclass();
-$filter->task->recordestimate     = new stdclass();
-$filter->execution->default       = new stdclass();
-$filter->execution->story         = new stdclass();
-$filter->testcase->default        = new stdclass();
-$filter->testcase->create         = new stdclass();
-$filter->testcase->browse         = new stdclass();
-$filter->testcase->export         = new stdclass();
-$filter->testcase->groupcase      = new stdclass();
-$filter->testreport->default      = new stdclass();
-$filter->testsuite->default       = new stdclass();
-$filter->testsuite->library       = new stdclass();
-$filter->testtask->default        = new stdclass();
-$filter->testtask->browse         = new stdclass();
-$filter->testtask->create         = new stdclass();
-$filter->testtask->cases          = new stdclass();
-$filter->todo->export             = new stdclass();
-$filter->upgrade->license         = new stdclass();
-$filter->user->login              = new stdclass();
-$filter->user->edit               = new stdclass();
-$filter->user->export             = new stdclass();
-$filter->webhook->bind            = new stdclass();
-$filter->user->ajaxgetmore        = new stdclass();
-$filter->user->export             = new stdclass();
-$filter->repo->ajaxsynccommit     = new stdclass();
-$filter->repo->apigetrepobyurl    = new stdclass();
-$filter->search->index            = new stdclass();
-$filter->gitlab->webhook          = new stdclass();
-$filter->gitlab->importissue      = new stdclass();
-$filter->mr->diff                 = new stdclass();
-$filter->mr->browse               = new stdclass();
-$filter->ci->checkCompileStatus   = new stdclass();
-$filter->execution->export        = new stdclass();
-$filter->tree->browse             = new stdclass();
-$filter->productplan->browse      = new stdclass();
-$filter->projectplan->browse      = new stdclass();
-$filter->kanban->space            = new stdclass();
-$filter->execution->kanban        = new stdclass();
-$filter->execution->all           = new stdclass();
-$filter->execution->tree          = new stdclass();
-$filter->group->editmanagepriv    = new stdclass();
-$filter->group->default           = new stdclass();
-$filter->caselib->default         = new stdclass();
+$filter->index->index                   = new stdclass();
+$filter->block->default                 = new stdclass();
+$filter->block->create                  = new stdclass();
+$filter->block->edit                    = new stdclass();
+$filter->my->work                       = new stdclass();
+$filter->my->contribute                 = new stdclass();
+$filter->bug->batchcreate               = new stdclass();
+$filter->bug->browse                    = new stdclass();
+$filter->bug->default                   = new stdclass();
+$filter->bug->create                    = new stdclass();
+$filter->bug->export                    = new stdclass();
+$filter->bug->ajaxgetproductcases       = new stdclass();
+$filter->bug->ajaxgetproductbugs        = new stdclass();
+$filter->caselib->create                = new stdclass();
+$filter->doc->create                    = new stdclass();
+$filter->doc->browse                    = new stdclass();
+$filter->doc->view                      = new stdclass();
+$filter->doc->tablecontents             = new stdclass();
+$filter->doc->productspace              = new stdclass();
+$filter->doc->projectspace              = new stdclass();
+$filter->doc->showfiles                 = new stdclass();
+$filter->doc->default                   = new stdclass();
+$filter->api->default                   = new stdClass();
+$filter->api->index                     = new stdClass();
+$filter->api->create                    = new stdClass();
+$filter->api->edit                      = new stdClass();
+$filter->mail->ztcloud                  = new stdclass();
+$filter->mail->batchdelete              = new stdclass();
+$filter->misc->checkupdate              = new stdclass();
+$filter->file->download                 = new stdclass();
+$filter->product->browse                = new stdclass();
+$filter->product->all                   = new stdclass();
+$filter->product->default               = new stdclass();
+$filter->product->index                 = new stdclass();
+$filter->product->export                = new stdclass();
+$filter->product->project               = new stdclass();
+$filter->product->roadmap               = new stdclass();
+$filter->product->dynamic               = new stdclass();
+$filter->branch->default                = new stdclass();
+$filter->program->default               = new stdclass();
+$filter->program->pgmproject            = new stdclass();
+$filter->program->prjbrowse             = new stdclass();
+$filter->program->project               = new stdclass();
+$filter->program->product               = new stdclass();
+$filter->program->browse                = new stdclass();
+$filter->program->export                = new stdclass();
+$filter->program->pgmbrowse             = new stdclass();
+$filter->program->export                = new stdclass();
+$filter->program->ajaxgetdropmenu       = new stdclass();
+$filter->project->default               = new stdclass();
+$filter->project->browse                = new stdclass();
+$filter->project->story                 = new stdclass();
+$filter->project->export                = new stdclass();
+$filter->project->task                  = new stdclass();
+$filter->project->execution             = new stdclass();
+$filter->project->testcase              = new stdclass();
+$filter->projectstory->story            = new stdclass();
+$filter->qa->default                    = new stdclass();
+$filter->story->create                  = new stdclass();
+$filter->story->export                  = new stdclass();
+$filter->story->batchchangeparent       = new stdclass();
+$filter->story->batchcreate             = new stdclass();
+$filter->story->track                   = new stdclass();
+$filter->epic->batchchangeparent        = new stdclass();
+$filter->epic->export                   = new stdclass();
+$filter->sso->getbindusers              = new stdclass();
+$filter->sso->gettodolist               = new stdclass();
+$filter->sso->getuserpairs              = new stdclass();
+$filter->sso->login                     = new stdclass();
+$filter->sso->logout                    = new stdclass();
+$filter->git->cat                       = new stdclass();
+$filter->git->diff                      = new stdclass();
+$filter->svn->cat                       = new stdclass();
+$filter->svn->diff                      = new stdclass();
+$filter->task->create                   = new stdclass();
+$filter->task->export                   = new stdclass();
+$filter->task->recordestimate           = new stdclass();
+$filter->execution->default             = new stdclass();
+$filter->execution->story               = new stdclass();
+$filter->testcase->default              = new stdclass();
+$filter->testcase->create               = new stdclass();
+$filter->testcase->browse               = new stdclass();
+$filter->testcase->export               = new stdclass();
+$filter->testcase->groupcase            = new stdclass();
+$filter->testreport->default            = new stdclass();
+$filter->testsuite->default             = new stdclass();
+$filter->testsuite->library             = new stdclass();
+$filter->testtask->default              = new stdclass();
+$filter->testtask->browse               = new stdclass();
+$filter->testtask->create               = new stdclass();
+$filter->testtask->cases                = new stdclass();
+$filter->todo->export                   = new stdclass();
+$filter->upgrade->license               = new stdclass();
+$filter->user->login                    = new stdclass();
+$filter->user->edit                     = new stdclass();
+$filter->user->export                   = new stdclass();
+$filter->webhook->bind                  = new stdclass();
+$filter->user->ajaxgetmore              = new stdclass();
+$filter->user->export                   = new stdclass();
+$filter->repo->ajaxsynccommit           = new stdclass();
+$filter->repo->apigetrepobyurl          = new stdclass();
+$filter->search->index                  = new stdclass();
+$filter->gitlab->webhook                = new stdclass();
+$filter->gitlab->importissue            = new stdclass();
+$filter->mr->diff                       = new stdclass();
+$filter->mr->browse                     = new stdclass();
+$filter->ci->checkCompileStatus         = new stdclass();
+$filter->execution->export              = new stdclass();
+$filter->tree->browse                   = new stdclass();
+$filter->productplan->browse            = new stdclass();
+$filter->projectplan->browse            = new stdclass();
+$filter->kanban->space                  = new stdclass();
+$filter->execution->kanban              = new stdclass();
+$filter->execution->all                 = new stdclass();
+$filter->execution->tree                = new stdclass();
+$filter->group->editmanagepriv          = new stdclass();
+$filter->group->default                 = new stdclass();
+$filter->caselib->default               = new stdclass();
+$filter->requirement->batchchangeparent = new stdclass();
+$filter->requirement->export            = new stdclass();
 
 $filter->index->index->get['open'] = 'reg::base64';
 
@@ -201,6 +208,7 @@ $filter->my->work->cookie['pagerMyStory']       = 'int';
 $filter->my->work->cookie['pagerMyBug']         = 'int';
 $filter->my->work->cookie['pagerMyTestcase']    = 'int';
 $filter->my->work->cookie['pagerMyTesttask']    = 'int';
+$filter->my->work->cookie['storyViewType']      = 'code';
 
 $filter->my->contribute->cookie['pagerMyTask']        = 'int';
 $filter->my->contribute->cookie['pagerMyRequirement'] = 'int';
@@ -209,6 +217,7 @@ $filter->my->contribute->cookie['pagerMyBug']         = 'int';
 $filter->my->contribute->cookie['pagerMyTestcase']    = 'int';
 $filter->my->contribute->cookie['pagerMyTesttask']    = 'int';
 $filter->my->contribute->cookie['pagerMyDoc']         = 'int';
+$filter->my->contribute->cookie['storyViewType']      = 'code';
 
 $filter->bug->batchcreate->cookie['preBranch'] = 'reg::word';
 $filter->bug->browse->cookie['bugModule']      = 'int';
@@ -266,6 +275,7 @@ $filter->product->browse->cookie['productStoryOrder'] = 'reg::orderBy';
 $filter->product->browse->cookie['storyModule']       = 'int';
 $filter->product->browse->cookie['storyBranch']       = 'int';
 $filter->product->browse->cookie['treeBranch']        = 'reg::word';
+$filter->product->browse->cookie['storyViewType']     = 'code';
 $filter->product->all->cookie['showProductBatchEdit'] = 'int';
 $filter->product->default->cookie['lastProduct']      = 'int';
 $filter->product->default->cookie['preProductID']     = 'int';
@@ -316,16 +326,24 @@ $filter->project->testcase->cookie['onlyScene']          = 'code';
 
 $filter->projectstory->story->cookie['storyModuleParam']   = 'int';
 $filter->projectstory->story->cookie['pagerProductBrowse'] = 'int';
+$filter->projectstory->story->cookie['storyViewType']      = 'code';
 
 $filter->qa->default->cookie['lastProduct']  = 'int';
 $filter->qa->default->cookie['preBranch']    = 'reg::word';
 $filter->qa->default->cookie['preProductID'] = 'int';
 
-$filter->story->create->cookie['lastStoryModule']   = 'int';
-$filter->story->batchcreate->cookie['preProductID'] = 'int';
-$filter->story->export->cookie['checkedItem']       = 'reg::checked';
-$filter->story->track->cookie['preBranch']          = 'reg::word';
-$filter->story->track->cookie['preProductID']       = 'int';
+$filter->story->create->cookie['lastStoryModule']        = 'int';
+$filter->story->batchcreate->cookie['preProductID']      = 'int';
+$filter->story->export->cookie['checkedItem']            = 'reg::checked';
+$filter->story->batchchangeparent->cookie['checkedItem'] = 'reg::checked';
+$filter->story->track->cookie['preBranch']               = 'reg::word';
+$filter->story->track->cookie['preProductID']            = 'int';
+
+$filter->epic->batchchangeparent->cookie['checkedItem'] = 'reg::checked';
+$filter->epic->export->cookie['checkedItem']            = 'reg::checked';
+
+$filter->requirement->batchchangeparent->cookie['checkedItem'] = 'reg::checked';
+$filter->requirement->export->cookie['checkedItem']            = 'reg::checked';
 
 $filter->productplan->browse->cookie['viewType'] = 'code';
 $filter->projectplan->browse->cookie['viewType'] = 'code';
diff --git a/config/zentaopms.php b/config/zentaopms.php
index 34ad739549..28bd0de9bb 100644
--- a/config/zentaopms.php
+++ b/config/zentaopms.php
@@ -119,6 +119,26 @@ $config->executionCommonList['pt'][1] = 'Sprint';
 $config->executionCommonList['pt'][2] = 'Fase';
 
 /* Story common list. */
+$config->storyCommonList['zh-cn']['epic']        = '业务需求';
+$config->storyCommonList['zh-cn']['requirement'] = '用户需求';
+$config->storyCommonList['zh-cn']['story']       = '软件需求';
+
+$config->storyCommonList['zh-tw']['epic']        = '業務需求';
+$config->storyCommonList['zh-tw']['requirement'] = '用戶需求';
+$config->storyCommonList['zh-tw']['story']       = '軟件需求';
+
+$config->storyCommonList['en']['epic']        = 'Epic';
+$config->storyCommonList['en']['requirement'] = 'Requirement';
+$config->storyCommonList['en']['story']       = 'Story';
+
+$config->storyCommonList['de']['epic']        = 'Epic';
+$config->storyCommonList['de']['requirement'] = 'Requirement';
+$config->storyCommonList['de']['story']       = 'Story';
+
+$config->storyCommonList['fr']['epic']        = 'Epic';
+$config->storyCommonList['fr']['requirement'] = 'Requirement';
+$config->storyCommonList['fr']['story']       = 'Story';
+
 $config->hourPointCommonList['zh-cn'][0] = '工时';
 $config->hourPointCommonList['zh-cn'][1] = '故事点';
 $config->hourPointCommonList['zh-cn'][2] = '功能点';
@@ -254,6 +274,7 @@ $config->openMethods[] = 'search.buildzinform';
 $config->openMethods[] = 'search.buildzinquery';
 $config->openMethods[] = 'search.savezinquery';
 $config->openMethods[] = 'space.createapplication';
+$config->openMethods[] = 'story.storyview';
 $config->openMethods[] = 'ai.adminindex';
 $config->openMethods[] = 'sonarqube.create';
 $config->openMethods[] = 'sonarqube.edit';
@@ -372,6 +393,7 @@ define('TABLE_STORYSPEC',     '`' . $config->db->prefix . 'storyspec`');
 define('TABLE_STORYREVIEW',   '`' . $config->db->prefix . 'storyreview`');
 define('TABLE_STORYSTAGE',    '`' . $config->db->prefix . 'storystage`');
 define('TABLE_STORYESTIMATE', '`' . $config->db->prefix . 'storyestimate`');
+define('TABLE_STORYGRADE',    '`' . $config->db->prefix . 'storygrade`');
 define('TABLE_PRODUCTPLAN',   '`' . $config->db->prefix . 'productplan`');
 define('TABLE_PLANSTORY',     '`' . $config->db->prefix . 'planstory`');
 define('TABLE_RELEASE',       '`' . $config->db->prefix . 'release`');
@@ -603,6 +625,7 @@ if(!defined('TABLE_MARKETRESEARCH')) define('TABLE_MARKETRESEARCH', '`' . $confi
 $config->objectTables['dept']           = TABLE_DEPT;
 $config->objectTables['product']        = TABLE_PRODUCT;
 $config->objectTables['productplan']    = TABLE_PRODUCTPLAN;
+$config->objectTables['epic']           = TABLE_STORY;
 $config->objectTables['story']          = TABLE_STORY;
 $config->objectTables['requirement']    = TABLE_STORY;
 $config->objectTables['release']        = TABLE_RELEASE;
@@ -698,8 +721,8 @@ $config->pipelineTypeList = array('gitlab', 'gogs', 'gitea', 'jenkins', 'sonarqu
 
 /* Program privs.*/
 $config->programPriv = new stdclass();
-$config->programPriv->noSprint      = array('task', 'story', 'tree', 'project', 'execution', 'projectbuild', 'bug', 'testcase', 'testreport', 'doc', 'repo', 'stakeholder', 'projectrelease', 'requirement');
-$config->programPriv->scrum         = array('story', 'requirement', 'productplan', 'tree', 'projectplan', 'projectstory', 'projectrelease', 'project', 'execution', 'projectbuild', 'bug', 'testcase', 'testreport', 'doc', 'repo', 'meeting', 'stakeholder', 'testtask');
+$config->programPriv->noSprint      = array('task', 'story', 'requirement', 'epic', 'tree', 'project', 'execution', 'projectbuild', 'bug', 'testcase', 'testreport', 'doc', 'repo', 'stakeholder', 'projectrelease');
+$config->programPriv->scrum         = array('story', 'requirement', 'epic', 'productplan', 'tree', 'projectplan', 'projectstory', 'projectrelease', 'project', 'execution', 'projectbuild', 'bug', 'testcase', 'testreport', 'doc', 'repo', 'meeting', 'stakeholder', 'testtask');
 $config->programPriv->waterfall     = array_merge($config->programPriv->scrum, array('workestimation', 'durationestimation', 'budget', 'programplan', 'review', 'reviewissue', 'weekly', 'cm', 'milestone', 'design', 'issue', 'risk', 'opportunity', 'measrecord', 'auditplan', 'trainplan', 'gapanalysis', 'pssp', 'researchplan', 'researchreport'));
 $config->programPriv->agileplus     = $config->programPriv->scrum;
 $config->programPriv->waterfallplus = $config->programPriv->waterfall;
@@ -711,14 +734,14 @@ $config->waterfallModules = array('workestimation', 'durationestimation', 'budge
 $config->showMainMenu = true;
 $config->maxPriValue  = '256';
 
-$config->importWhiteList = array('user', 'task', 'story', 'bug', 'testcase', 'feedback', 'ticket');
+$config->importWhiteList = array('user', 'task', 'epic', 'requirement', 'story', 'bug', 'testcase', 'feedback', 'ticket');
 
 $config->dtable = new stdclass();
 $config->dtable->colVars = array('width', 'minWidth', 'type', 'flex', 'fixed', 'sortType', 'checkbox', 'nestedToggle', 'statusMap', 'actionsMap', 'group');
 
 $config->featureGroup = new stdclass();
 $config->featureGroup->my            = array('score');
-$config->featureGroup->product       = array('roadmap', 'track', 'UR');
+$config->featureGroup->product       = array('roadmap', 'track', 'UR', 'ER');
 $config->featureGroup->scrum         = array();
 $config->featureGroup->waterfall     = array();
 $config->featureGroup->agileplus     = array();
diff --git a/db/update20.0.sql b/db/update20.0.sql
index a193c2f2e8..33a599c697 100644
--- a/db/update20.0.sql
+++ b/db/update20.0.sql
@@ -18,6 +18,19 @@ ALTER TABLE `zt_user` MODIFY `ip` varchar(255) NOT NULL DEFAULT '';
 
 DELETE FROM `zt_config` WHERE `owner`='system' AND `module`='custom' AND `key`='productProject';
 
+INSERT INTO `zt_metric` (`purpose`, `scope`, `object`, `stage`, `type`, `name`, `code`, `alias`, `unit`, `desc`, `definition`, `when`, `createdBy`, `createdDate`, `builtin`, `deleted`, `dateType`) VALUES
+('scale', 'product', 'feedback', 'released', 'php', '按产品统计的每周新增反馈数', 'count_of_weekly_created_feedback_in_product', '新增反馈数', 'count', '按产品统计的每周新增反馈数是指在一个周内收集到的用户反馈的数量。这个度量项可以帮助团队了解用户对产品的发展趋势和需求变化，并进行产品策略的调整和优化', '产品中创建时间为某个周的反馈的个数求和\r\n过滤已删除的反馈\r\n过滤已删除的产品', 'realtime', 'system', '2024-05-07 08:00:00', '1', '0', 'week'),
+('scale', 'product', 'feedback', 'released', 'php', '按产品统计的处理中的反馈数', 'count_of_doing_feedback_in_product', '处理中反馈数', 'count', '按产品统计的处理中的反馈数表示产品中状态为处理中的反馈数量之和。该数值越大，说明团队并行处理的反馈越多，可以帮助团队了解当前的工作负载情况', '产品中所有反馈个数求和\r\n状态为处理中\r\n过滤已删除的反馈\r\n过滤已删除的产品', 'realtime', 'system', '2024-05-07 08:00:00', '1', '0', 'nodate'),
+('scale', 'product', 'feedback', 'released', 'php', '按产品统计的已处理的反馈数', 'count_of_done_feedback_in_product', '已处理反馈数', 'count', '按产品统计的已处理的反馈数表示产品中状态为已处理的反馈数量之和。该数值越大，说明团队成员处理的反馈越多，有利于提高用户满意度', '产品中所有反馈个数求和\r\n状态为已处理\r\n过滤已删除的反馈\r\n过滤已删除的产品', 'realtime', 'system', '2024-05-07 08:00:00', '1', '0', 'nodate'),
+('scale', 'product', 'feedback', 'released', 'php', '按产品统计的待完善的反馈数', 'count_of_clarify_feedback_in_product', '待完善反馈数', 'count', '按产品统计的待完善的反馈数表示产品中状态为待完善的反馈数量之和。该数值越大，说明有较多的反馈信息不清晰或比较复杂。需要反馈者更多的澄清和解释', '产品中所有反馈个数求和\r\n状态为待完善\r\n过滤已删除的反馈\r\n过滤已删除的产品', 'realtime', 'system', '2024-05-07 08:00:00', '1', '0', 'nodate'),
+('scale', 'product', 'feedback', 'released', 'php', '按产品统计的待处理的反馈数', 'count_of_wait_feedback_in_product', '待处理反馈数', 'count', '按产品统计的待处理的反馈数表示产品中状态为待处理的反馈数量之和。该度量项可能暗示产品团队的反馈处理效率，待处理反馈数越多，可能会导致客户满意度降低', '产品中所有反馈个数求和\r\n状态为待处理\r\n过滤已删除的反馈\r\n过滤已删除的产品', 'realtime', 'system', '2024-05-07 08:00:00', '1', '0', 'nodate'),
+('scale', 'product', 'feedback', 'released', 'php', '按产品统计的追问中的反馈数', 'count_of_asked_feedback_in_product', '追问中反馈数', 'count', '按产品统计的追问中的反馈数表示产品中状态为追问中的反馈数量之和。该度量项可能暗示着反馈的复杂性或对处理方案的疑惑，追问中的反馈数量越多，可能意味着团队需要更多时间和资源来回复并解决这些问题', '产品中所有反馈个数求和\r\n状态为追问中\r\n过滤已删除的反馈\r\n过滤已删除的产品', 'realtime', 'system', '2024-05-07 08:00:00', '1', '0', 'nodate'),
+('scale', 'product', 'feedback', 'released', 'php', '按产品统计的未关闭的反馈数', 'count_of_unclosed_feedback_in_product', '未关闭反馈数', 'count', '按产品统计的未关闭的反馈数表示产品中状态为未关闭的反馈数量之和。这个度量项可以一定程度反映产品团队响应用户反馈的效率和及时处理用户问题的能力', '产品中所有反馈个数求和\r\n过滤状态为已关闭的反馈\r\n过滤已删除的反馈\r\n过滤已删除的产品', 'realtime', 'system', '2024-05-07 08:00:00', '1', '0', 'nodate'),
+('scale', 'user', 'ticket', 'released', 'php', '按人员统计的待处理工单数', 'count_of_assigned_ticket_in_user', '待处理工单数', 'count', '按人员统计的待处理工单数表示每个人待处理的工单数量之和。反映了每个人员需要处理的工单数量的规模。该数值越大，说明需要处理的反馈任务越多。', '所有工单个数求和\r\n指派给为某人\r\n过滤已删除的工单\r\n过滤已删除产品的工单', 'realtime', 'system', '2024-05-07 08:00:00', '1', '0', 'nodate'),
+('scale', 'user', 'qa', 'released', 'php', '按人员统计的待处理QA数', 'count_of_assigned_qa_in_user', '待处理QA数', 'count', '按人员统计的待处理QA数表示每个人待处理的质量保证问题之和。反映了每个人员需要处理的质量保证问题的规模。该数值越大，说明需要处理的质量保证问题越多。', '所有待处理的QA个数求和（包含：待处理质量保证计划、待处理不符合项）\r\n指派给为某人\r\n质量保证计划状态为待检查、不符合项状态为待解决\r\n过滤已删除的质量保证计划和不符合项\r\n过滤已删除项目的质量保证计划和不符合项', 'realtime', 'system', '2024-05-07 08:00:00', '1', '0', 'nodate'),
+('scale', 'user', 'risk', 'released', 'php', '按人员统计的待处理风险数', 'count_of_assigned_risk_in_user', '待处理风险数', 'count', '按人员统计的待处理用户需求数表示每个人待处理的用户需求数量之和。反映了每个人员需要处理的用户需求数量的规模。该数值越大，说明需要投入越多的时间处理用户需求。', '所有风险个数求和\r\n指派给为某人\r\n过滤已删除的风险\r\n过滤已关闭的风险\r\n过滤已删除项目的风险', 'realtime', 'system', '2024-05-07 08:00:00', '1', '0', 'nodate'),
+('scale', 'user', 'issue', 'released', 'php', '按人员统计的待处理问题数', 'count_of_assigned_issue_in_user', '待处理问题数', 'count', '按人员统计的待处理问题数表示每个人待处理的问题数量之和。反映了每个人员需要处理的问题数量的规模。该数值越大，项目存在问题越多，需要投入越多的时间处理问题。', '所有问题个数求和\r\n指派给为某人\r\n过滤已删除的问题\r\n过滤已删除项目的问题', 'realtime', 'system', '2024-05-07 08:00:00', '1', '0', 'nodate');
+
 ALTER TABLE `zt_chart` ADD `code` varchar(255) not NULL default '' AFTER `name`;
 ALTER TABLE `zt_pivot` ADD `code` varchar(255) not NULL default '' AFTER `group`;
 
diff --git a/db/update20.1.1.sql b/db/update20.1.1.sql
new file mode 100644
index 0000000000..70a302a296
--- /dev/null
+++ b/db/update20.1.1.sql
@@ -0,0 +1,92 @@
+REPLACE INTO `zt_lang` (`lang`, `module`, `section`, `key`, `value`, `system`, `vision`) VALUES
+('zh-cn', 'custom', 'URSRList', '1', '{\"ERName\":\"\\u4e1a\\u52a1\\u9700\\u6c42\",\"SRName\":\"\\u8f6f\\u4ef6\\u9700\\u6c42\",\"URName\":\"\\u7528\\u6237\\u9700\\u6c42\"}', '0', 'rnd'),
+('zh-cn', 'custom', 'URSRList', '2', '{\"ERName\":\"\\u4e1a\\u52a1\\u9700\\u6c42\",\"SRName\":\"\\u7814\\u53d1\\u9700\\u6c42\",\"URName\":\"\\u7528\\u6237\\u9700\\u6c42\"}', '0', 'rnd'),
+('zh-cn', 'custom', 'URSRList', '3', '{\"ERName\":\"\\u4e1a\\u9700\",\"SRName\":\"\\u8f6f\\u9700\",\"URName\":\"\\u7528\\u9700\"}', '0', 'rnd'),
+('zh-cn', 'custom', 'URSRList', '4', '{\"ERName\":\"\\u53f2\\u8bd7\",\"SRName\":\"\\u6545\\u4e8b\",\"URName\":\"\\u7279\\u6027\"}', '0', 'rnd'),
+('zh-cn', 'custom', 'URSRList', '5', '{\"ERName\":\"\\u4e1a\\u52a1\\u9700\\u6c42\",\"SRName\":\"\\u9700\\u6c42\",\"URName\":\"\\u7528\\u6237\\u9700\\u6c42\"}', '0', 'rnd'),
+('zh-cn', 'custom', 'URSRList', '6', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd'),
+('en',    'custom', 'URSRList', '1', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd'),
+('en',    'custom', 'URSRList', '2', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Requirement\"}', '0', 'rnd'),
+('en',    'custom', 'URSRList', '3', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd'),
+('fr',    'custom', 'URSRList', '1', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd'),
+('fr',    'custom', 'URSRList', '2', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Requirement\"}', '0', 'rnd'),
+('fr',    'custom', 'URSRList', '3', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd'),
+('de',    'custom', 'URSRList', '1', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd'),
+('de',    'custom', 'URSRList', '2', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Requirement\"}', '0', 'rnd'),
+('de',    'custom', 'URSRList', '3', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd'),
+('zh-tw', 'custom', 'URSRList', '1', '{\"ERName\":\"\\u696d\\u52d9\\u9700\\u6c42\",\"SRName\":\"\\u8edf\\u4ef6\\u9700\\u6c42\",\"URName\":\"\\u7528\\u6236\\u9700\\u6c42\"}', '0', 'rnd'),
+('zh-tw', 'custom', 'URSRList', '2', '{\"ERName\":\"\\u696d\\u52d9\\u9700\\u6c42\",\"SRName\":\"\\u7814\\u767c\\u9700\\u6c42\",\"URName\":\"\\u7528\\u6236\\u9700\\u6c42\"}', '0', 'rnd'),
+('zh-tw', 'custom', 'URSRList', '3', '{\"ERName\":\"\\u696d\\u9700\",\"SRName\":\"\\u8edf\\u9700\",\"URName\":\"\\u7528\\u9700\"}', '0', 'rnd'),
+('zh-tw', 'custom', 'URSRList', '4', '{\"ERName\":\"\\u53f2\\u8a69\",\"SRName\":\"\\u6545\\u4e8b\",\"URName\":\"\\u7279\\u6027\"}', '0', 'rnd'),
+('zh-tw', 'custom', 'URSRList', '5', '{\"ERName\":\"\\u696d\\u52d9\\u9700\\u6c42\",\"SRName\":\"\\u9700\\u6c42\",\"URName\":\"\\u7528\\u6236\\u9700\\u6c42\"}', '0', 'rnd'),
+('zh-tw', 'custom', 'URSRList', '6', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd');
+
+CREATE TABLE `zt_storygrade` (
+  `type` enum('story','requirement','epic') NOT NULL,
+  `grade` smallint NOT NULL,
+  `name` char(30) NOT NULL,
+  `status` char(30) NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+
+INSERT INTO `zt_storygrade` (`type`, `grade`, `name`, `status`) VALUES
+('requirement', 1,    'UR', 'enable'),
+('epic',        1,    'BR', 'enable'),
+('story',       1,    'SR', 'enable'),
+('story',       2,    '子', 'enable');
+
+ALTER TABLE `zt_story` ADD `isParent` enum('0','1') NOT NULL DEFAULT '0' AFTER `parent`;
+ALTER TABLE `zt_story` ADD `root` mediumint NOT NULL DEFAULT '0' AFTER `isParent`;
+ALTER TABLE `zt_story` ADD `path` text NULL AFTER `root`;
+ALTER TABLE `zt_story` ADD `grade` smallint(6) NOT NULL DEFAULT '0' AFTER `path`;
+ALTER TABLE `zt_story` ADD `parentVersion` smallint NOT NULL DEFAULT '0' AFTER `version`;
+ALTER TABLE `zt_story` CHANGE `stage` `stage` enum('','wait','defining','planning','planned','projected','designing','designed','developing','developed','testing','tested','verified','rejected','delivering','pending','released','closed') NOT NULL DEFAULT 'wait';
+ALTER TABLE `zt_story` DROP `childStories`;
+CREATE INDEX `root` ON `zt_story` (`root`);
+UPDATE `zt_story` SET stage = 'defining'   WHERE stage = 'wait' AND (parent = -1 OR type != 'story');
+UPDATE `zt_story` SET stage = 'planning'   WHERE stage in ('planned', 'projected') AND (parent = -1 OR type != 'story');
+UPDATE `zt_story` SET stage = 'developing' WHERE stage in ('developed', 'testing', 'tested') AND (parent = -1 OR type != 'story');
+UPDATE `zt_story` SET stage = 'delivering' WHERE stage in ('verified', 'released') AND (parent = -1 OR type != 'story');
+UPDATE `zt_story` SET isParent = '1' WHERE parent = -1;
+UPDATE `zt_story` SET grade = 1, parent = 0, root = id, path = concat(',', id, ',') WHERE type != 'story';
+UPDATE `zt_story` SET grade = 1, parent = 0, root = id, path = concat(',', id, ',') WHERE type = 'story' AND parent <= 0;
+UPDATE `zt_story` SET grade = 2, root = parent, path = concat(',', parent, ',', id, ',') WHERE type = 'story' AND parent > 0;
+
+INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'story', '', 'gradeRule', 'stepwise');
+INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'requirement', '', 'gradeRule', 'stepwise');
+INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'epic', '', 'gradeRule', 'stepwise');
+INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'custom', '', 'enableER', '1');
+
+ALTER TABLE `zt_product`
+ADD `draftRequirements` mediumint(8) NOT NULL DEFAULT '0' AFTER `reviewer`,
+ADD `activeRequirements` mediumint(8) NOT NULL DEFAULT '0' AFTER `draftRequirements`,
+ADD `changingRequirements` mediumint(8) NOT NULL DEFAULT '0' AFTER `activeRequirements`,
+ADD `reviewingRequirements` mediumint(8) NOT NULL DEFAULT '0' AFTER `changingRequirements`,
+ADD `finishedRequirements` mediumint NOT NULL DEFAULT '0' AFTER `reviewingRequirements`,
+ADD `closedRequirements` mediumint(8) NOT NULL DEFAULT '0' AFTER `finishedRequirements`,
+ADD `totalRequirements` mediumint(8) NOT NULL DEFAULT '0' AFTER `closedRequirements`;
+
+ALTER TABLE `zt_product`
+ADD `draftEpics` mediumint(8) NOT NULL DEFAULT '0' AFTER `reviewer`,
+ADD `activeEpics` mediumint(8) NOT NULL DEFAULT '0' AFTER `draftEpics`,
+ADD `changingEpics` mediumint(8) NOT NULL DEFAULT '0' AFTER `activeEpics`,
+ADD `reviewingEpics` mediumint(8) NOT NULL DEFAULT '0' AFTER `changingEpics`,
+ADD `finishedEpics` mediumint NOT NULL DEFAULT '0' AFTER `reviewingEpics`,
+ADD `closedEpics` mediumint(8) NOT NULL DEFAULT '0' AFTER `finishedEpics`,
+ADD `totalEpics` mediumint(8) NOT NULL DEFAULT '0' AFTER `closedEpics`;
+
+ALTER TABLE `zt_project` ADD `storyType` char(30) NULL DEFAULT 'story' AFTER `auth`;
+UPDATE `zt_project` SET storyType = 'story' WHERE storyType = '';
+
+DROP VIEW IF EXISTS `view_datasource_2`;
+DROP VIEW IF EXISTS `view_datasource_3`;
+DROP VIEW IF EXISTS `view_datasource_4`;
+
+CREATE VIEW `view_datasource_2` AS select `id`,`title` from `zt_story` where `deleted` = '0' and type = 'epic';
+CREATE VIEW `view_datasource_3` AS select `id`,`title` from `zt_story` where `deleted` = '0' and type = 'requirement';
+CREATE VIEW `view_datasource_4` AS select `id`,`title` from `zt_story` where `deleted` = '0' and type = 'story';
+
+INSERT INTO `zt_workflowdatasource` (`type`, `name`, `code`, `buildin`, `vision`, `createdBy`, `createdDate`, `datasource`, `view`, `keyField`, `valueField`) VALUES
+('sql', '用户需求', 'requirements', '1', 'rnd', 'admin', '1970-01-01 00:00:01', 'select id,title from zt_story where deleted=\"0\" and type=\"requirement\"',    'view_datasource_3',    'id',   'title'),
+('sql', '业务需求', 'epics',        '1', 'rnd', 'admin', '1970-01-01 00:00:01', 'select id,title from zt_story where deleted=\"0\" type=\"epic\"',    'view_datasource_2',    'id',   'title');
+
+UPDATE `zt_workflowdatasource` SET `datasource` = 'select id,title from zt_story where deleted=\"0\" and type=\"story\"' WHERE `code` = 'stories';
diff --git a/db/zentao.sql b/db/zentao.sql
index 9320bafbdd..4511ba4a62 100755
--- a/db/zentao.sql
+++ b/db/zentao.sql
@@ -1363,6 +1363,20 @@ CREATE TABLE IF NOT EXISTS `zt_product` (
   `whitelist` text NULL,
   `reviewer` text NULL,
   `PMT` text NULL,
+  `draftEpics` mediumint(8) NOT NULL DEFAULT '0',
+  `activeEpics` mediumint(8) NOT NULL DEFAULT '0',
+  `changingEpics` mediumint(8) NOT NULL DEFAULT '0',
+  `reviewingEpics` mediumint(8) NOT NULL DEFAULT '0',
+  `finishedEpics` mediumint(8) NOT NULL DEFAULT '0',
+  `closedEpics` mediumint(8) NOT NULL DEFAULT '0',
+  `totalEpics` mediumint(8) NOT NULL DEFAULT '0',
+  `draftRequirements` mediumint(8) NOT NULL DEFAULT '0',
+  `activeRequirements` mediumint(8) NOT NULL DEFAULT '0',
+  `changingRequirements` mediumint(8) NOT NULL DEFAULT '0',
+  `reviewingRequirements` mediumint(8) NOT NULL DEFAULT '0',
+  `finishedRequirements` mediumint(8) NOT NULL DEFAULT '0',
+  `closedRequirements` mediumint(8) NOT NULL DEFAULT '0',
+  `totalRequirements` mediumint(8) NOT NULL DEFAULT '0',
   `draftStories` mediumint(8) NOT NULL DEFAULT '0',
   `activeStories` mediumint(8) NOT NULL DEFAULT '0',
   `changingStories` mediumint(8) NOT NULL DEFAULT '0',
@@ -1427,6 +1441,7 @@ CREATE TABLE IF NOT EXISTS `zt_project` (
   `milestone` enum('0','1') NOT NULL DEFAULT '0',
   `output` text NULL,
   `auth` char(30) NOT NULL DEFAULT '',
+  `storyType` char(30) NOT NULL DEFAULT '',
   `parent` mediumint(8) unsigned NOT NULL DEFAULT '0',
   `path` varchar(255) NOT NULL DEFAULT '',
   `grade` tinyint(3) unsigned NOT NULL DEFAULT '0',
@@ -1765,6 +1780,10 @@ CREATE TABLE IF NOT EXISTS `zt_story` (
   `id` mediumint(8) unsigned NOT NULL AUTO_INCREMENT,
   `vision` varchar(10) NOT NULL DEFAULT 'rnd',
   `parent` mediumint(9) NOT NULL DEFAULT '0',
+  `isParent` enum('0', '1') NOT NULL DEFAULT '0',
+  `root` mediumint(9) NOT NULL DEFAULT '0',
+  `path` text NULL,
+  `grade` smallint(6) NOT NULL DEFAULT '0',
   `product` mediumint(8) unsigned NOT NULL DEFAULT '0',
   `branch` mediumint(8) unsigned NOT NULL DEFAULT '0',
   `module` mediumint(8) unsigned NOT NULL DEFAULT '0',
@@ -1782,7 +1801,7 @@ CREATE TABLE IF NOT EXISTS `zt_story` (
   `status` enum('','changing','active','draft','closed','reviewing','launched','developing') NOT NULL DEFAULT '',
   `subStatus` varchar(30) NOT NULL DEFAULT '',
   `color` char(7) NOT NULL DEFAULT '',
-  `stage` enum('','wait','planned','projected','developing','developed','testing','tested','verified','released','closed') NOT NULL DEFAULT 'wait',
+  `stage` enum('','wait','defining','planning','planned','projected','designing','designed','developing','developed','testing','tested','verified','rejected','delivering','pending','released','closed') NOT NULL DEFAULT 'wait',
   `stagedBy` char(30) NOT NULL DEFAULT '',
   `mailto` text NULL,
   `lib` mediumint(8) unsigned NOT NULL DEFAULT '0',
@@ -1805,12 +1824,12 @@ CREATE TABLE IF NOT EXISTS `zt_story` (
   `closedReason` varchar(30) NOT NULL DEFAULT '',
   `activatedDate` datetime NULL,
   `toBug` mediumint(8) unsigned NOT NULL DEFAULT '0',
-  `childStories` varchar(255) NOT NULL DEFAULT '',
   `linkStories` varchar(255) NOT NULL DEFAULT '',
   `linkRequirements` varchar(255) NOT NULL DEFAULT '',
   `twins` varchar(255) NOT NULL DEFAULT '',
   `duplicateStory` mediumint(8) unsigned NOT NULL DEFAULT '0',
   `version` smallint(6) NOT NULL DEFAULT '1',
+  `parentVersion` smallint(6) NOT NULL DEFAULT '0',
   `storyChanged` enum('0','1') NOT NULL DEFAULT '0',
   `feedbackBy` varchar(100) NOT NULL DEFAULT '',
   `notifyEmail` varchar(100) NOT NULL DEFAULT '',
@@ -1828,9 +1847,18 @@ CREATE TABLE IF NOT EXISTS `zt_story` (
   PRIMARY KEY (`id`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 CREATE INDEX `product` ON `zt_story` (`product`);
+CREATE INDEX `root` ON `zt_story` (`root`);
 CREATE INDEX `status` ON `zt_story` (`status`);
 CREATE INDEX `assignedTo` ON `zt_story` (`assignedTo`);
 
+-- DROP TABLE IF EXISTS `zt_storygrade`;
+CREATE TABLE `zt_storygrade` (
+  `type` enum('story','requirement','epic') NOT NULL,
+  `grade` smallint NOT NULL,
+  `name` char(30) NOT NULL,
+  `status` char(30) NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+
 -- DROP TABLE IF EXISTS `zt_storyreview`;
 CREATE TABLE IF NOT EXISTS `zt_storyreview` (
   `story` mediumint(9) NOT NULL DEFAULT '0',
@@ -2343,23 +2371,34 @@ REPLACE INTO `zt_group` (`vision`, `name`, `role`, `desc`) VALUES ('or', 'IPDDEM
 REPLACE INTO `zt_group` (`vision`, `name`, `role`, `desc`) VALUES ('or', 'IPDPMT',         'IPDPMT', '');
 REPLACE INTO `zt_group` (`vision`, `name`, `role`, `desc`) VALUES ('or', 'IPDADMIN',       'IPDADMIN', '');
 
-REPLACE INTO `zt_lang` (`lang`, `module`, `section`, `key`, `value`, `system`) VALUES
-('zh-cn', 'custom', 'URSRList', '1', '{\"SRName\":\"\\u8f6f\\u4ef6\\u9700\\u6c42\",\"URName\":\"\\u7528\\u6237\\u9700\\u6c42\"}', '1'),
-('zh-cn', 'custom', 'URSRList', '2', '{\"SRName\":\"\\u7814\\u53d1\\u9700\\u6c42\",\"URName\":\"\\u7528\\u6237\\u9700\\u6c42\"}', '1'),
-('zh-cn', 'custom', 'URSRList', '3', '{\"SRName\":\"\\u8f6f\\u9700\",\"URName\":\"\\u7528\\u9700\"}', '1'),
-('zh-cn', 'custom', 'URSRList', '4', '{\"SRName\":\"\\u6545\\u4e8b\",\"URName\":\"\\u53f2\\u8bd7\"}', '1'),
-('zh-cn', 'custom', 'URSRList', '5', '{\"SRName\":\"\\u9700\\u6c42\",\"URName\":\"\\u7528\\u6237\\u9700\\u6c42\"}', '1'),
-('zh-tw', 'custom', 'URSRList', '1', '{"SRName":"\\u8edf\\u4ef6\\u9700\\u6c42","URName":"\\u7528\\u6236\\u9700\\u6c42"}', '0'),
-('zh-tw', 'custom', 'URSRList', '2', '{"SRName":"\\u7814\\u767c\\u9700\\u6c42","URName":"\\u7528\\u6236\\u9700\\u6c42"}', '0'),
-('zh-tw', 'custom', 'URSRList', '3', '{"SRName":"\\u8edf\\u9700","URName":"\\u7528\\u9700"}', '0'),
-('zh-tw', 'custom', 'URSRList', '4', '{"SRName":"\\u6545\\u4e8b","URName":"\\u53f2\\u8a69"}', '0'),
-('zh-tw', 'custom', 'URSRList', '5', '{"SRName":"\\u9700\\u6c42","URName":"\\u7528\\u6236\\u9700\\u6c42"}', '0'),
-('en', 'custom', 'URSRList', '1', '{\"SRName\":\"Story\",\"URName\":\"Epic\"}', '0'),
-('en', 'custom', 'URSRList', '2', '{\"SRName\":\"Story\",\"URName\":\"Requirement\"}', '0'),
-('fr', 'custom', 'URSRList', '1', '{\"SRName\":\"Story\",\"URName\":\"Epic\"}', '0'),
-('fr', 'custom', 'URSRList', '2', '{\"SRName\":\"Story\",\"URName\":\"Requirement\"}', '0'),
-('de', 'custom', 'URSRList', '1', '{\"SRName\":\"Story\",\"URName\":\"Epic\"}', '0'),
-('de', 'custom', 'URSRList', '2', '{\"SRName\":\"Story\",\"URName\":\"Requirement\"}', '0');
+REPLACE INTO `zt_lang` (`lang`, `module`, `section`, `key`, `value`, `system`, `vision`) VALUES
+('zh-cn', 'custom', 'URSRList', '1', '{\"ERName\":\"\\u4e1a\\u52a1\\u9700\\u6c42\",\"SRName\":\"\\u8f6f\\u4ef6\\u9700\\u6c42\",\"URName\":\"\\u7528\\u6237\\u9700\\u6c42\"}', '0', 'rnd'),
+('zh-cn', 'custom', 'URSRList', '2', '{\"ERName\":\"\\u4e1a\\u52a1\\u9700\\u6c42\",\"SRName\":\"\\u7814\\u53d1\\u9700\\u6c42\",\"URName\":\"\\u7528\\u6237\\u9700\\u6c42\"}', '0', 'rnd'),
+('zh-cn', 'custom', 'URSRList', '3', '{\"ERName\":\"\\u4e1a\\u9700\",\"SRName\":\"\\u8f6f\\u9700\",\"URName\":\"\\u7528\\u9700\"}', '0', 'rnd'),
+('zh-cn', 'custom', 'URSRList', '4', '{\"ERName\":\"\\u53f2\\u8bd7\",\"SRName\":\"\\u6545\\u4e8b\",\"URName\":\"\\u7279\\u6027\"}', '0', 'rnd'),
+('zh-cn', 'custom', 'URSRList', '5', '{\"ERName\":\"\\u4e1a\\u52a1\\u9700\\u6c42\",\"SRName\":\"\\u9700\\u6c42\",\"URName\":\"\\u7528\\u6237\\u9700\\u6c42\"}', '0', 'rnd'),
+('zh-cn', 'custom', 'URSRList', '6', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd'),
+('en',    'custom', 'URSRList', '1', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd'),
+('en',    'custom', 'URSRList', '2', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Requirement\"}', '0', 'rnd'),
+('en',    'custom', 'URSRList', '3', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd'),
+('fr',    'custom', 'URSRList', '1', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd'),
+('fr',    'custom', 'URSRList', '2', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Requirement\"}', '0', 'rnd'),
+('fr',    'custom', 'URSRList', '3', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd'),
+('de',    'custom', 'URSRList', '1', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd'),
+('de',    'custom', 'URSRList', '2', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Requirement\"}', '0', 'rnd'),
+('de',    'custom', 'URSRList', '3', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd'),
+('zh-tw', 'custom', 'URSRList', '1', '{\"ERName\":\"\\u696d\\u52d9\\u9700\\u6c42\",\"SRName\":\"\\u8edf\\u4ef6\\u9700\\u6c42\",\"URName\":\"\\u7528\\u6236\\u9700\\u6c42\"}', '0', 'rnd'),
+('zh-tw', 'custom', 'URSRList', '2', '{\"ERName\":\"\\u696d\\u52d9\\u9700\\u6c42\",\"SRName\":\"\\u7814\\u767c\\u9700\\u6c42\",\"URName\":\"\\u7528\\u6236\\u9700\\u6c42\"}', '0', 'rnd'),
+('zh-tw', 'custom', 'URSRList', '3', '{\"ERName\":\"\\u696d\\u9700\",\"SRName\":\"\\u8edf\\u9700\",\"URName\":\"\\u7528\\u9700\"}', '0', 'rnd'),
+('zh-tw', 'custom', 'URSRList', '4', '{\"ERName\":\"\\u53f2\\u8a69\",\"SRName\":\"\\u6545\\u4e8b\",\"URName\":\"\\u7279\\u6027\"}', '0', 'rnd'),
+('zh-tw', 'custom', 'URSRList', '5', '{\"ERName\":\"\\u696d\\u52d9\\u9700\\u6c42\",\"SRName\":\"\\u9700\\u6c42\",\"URName\":\"\\u7528\\u6236\\u9700\\u6c42\"}', '0', 'rnd'),
+('zh-tw', 'custom', 'URSRList', '6', '{\"ERName\":\"Epic\",\"SRName\":\"Story\",\"URName\":\"Feature\"}',     '0', 'rnd');
+
+INSERT INTO `zt_storygrade` (`type`, `grade`, `name`, `status`) VALUES
+('requirement', 1,    'UR', 'enable'),
+('epic',        1,    'BR', 'enable'),
+('story',       1,    'SR', 'enable'),
+('story',       2,    '子', 'enable');
 
 REPLACE INTO `zt_stage` (`name`,`percent`,`type`,`projectType`,`createdBy`,`createdDate`,`editedBy`,`editedDate`,`deleted`) VALUES
 ('需求','10','request','waterfall','admin','2020-02-08 21:08:30','admin','2020-02-12 13:50:27','0'),
@@ -2379,11 +2418,15 @@ INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('
 INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'common', '', 'CRProduct',   '1');
 INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'common', '', 'CRExecution', '1');
 INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'custom', '', 'URSR', '2');
+INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'custom', '', 'enableER', '0');
 INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'common', 'global', 'mode', 'ALM');
 INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'project', '', 'unitList', 'CNY,USD');
 INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'project', '', 'defaultCurrency', 'CNY');
 INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'story', '', 'reviewRules', 'allpass');
 INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'common', 'global', 'syncProduct', '{"feedback":{},"ticket":{}}');
+INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'story', '', 'gradeRule', 'cross');
+INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'requirement', '', 'gradeRule', 'cross');
+INSERT INTO `zt_config` (`owner`, `module`, `section`, `key`, `value`) VALUES ('system', 'epic', '', 'gradeRule', 'cross');
 -- DROP TABLE IF EXISTS `zt_im_chat`;
 CREATE TABLE IF NOT EXISTS `zt_im_chat` (
   `id` mediumint(8) unsigned NOT NULL AUTO_INCREMENT,
@@ -13590,7 +13633,9 @@ INSERT INTO `zt_workflowdatasource` (`type`, `name`, `code`, `buildin`, `vision`
 ('system',      '产品',           'products',                 '1', 'rnd', 'admin', '1970-01-01 00:00:01', '{\"app\":\"system\",\"module\":\"product\",\"method\":\"getPairs\",\"methodDesc\":\"Get product pairs.\",\"params\":[{\"name\":\"mode\",\"type\":\"string\",\"desc\":\"\",\"value\":\"all\"}]}',       '',     '',     ''),
 ('system',      '项目',           'projects',                 '1', 'rnd', 'admin', '1970-01-01 00:00:01', '{\"app\":\"system\",\"module\":\"project\",\"method\":\"getPairsByModel\",\"methodDesc\":\"Get project pairs by model and project.\",\"params\":[{\"name\":\"model\",\"type\":\"string\",\"desc\":\"all|scrum|waterfall\",\"value\":\"all\"},{\"name\":\"programID\",\"type\":\"int\",\"desc\":\"\",\"value\":\"0\"},{\"name\":\"param\",\"type\":\"\",\"desc\":\"\",\"value\":\"\"}]}',  '',     '',     ''),
 ('system',      '产品线',         'productLines',             '1', 'rnd', 'admin', '1970-01-01 00:00:01', '{\"app\":\"system\",\"module\":\"product\",\"method\":\"getLinePairs\",\"methodDesc\":\"Get line pairs.\",\"params\":[{\"name\":\"useShort\",\"type\":\"bool\",\"desc\":\"\",\"value\":\"\"}]}',  '',     '',     ''),
-('sql',         '需求',           'stories',                  '1', 'rnd', 'admin', '1970-01-01 00:00:01', 'select id,title from zt_story where deleted=\"0\"',    'view_datasource_4',    'id',   'title'),
+('sql',         '软件需求',       'stories',                  '1', 'rnd', 'admin', '1970-01-01 00:00:01', 'select id,title from zt_story where deleted=\"0\" and type=\"story\"',    'view_datasource_4',    'id',   'title'),
+('sql',         '用户需求',       'requirements',             '1', 'rnd', 'admin', '1970-01-01 00:00:01', 'select id,title from zt_story where deleted=\"0\" and type=\"requirement\"',    'view_datasource_3',    'id',   'title'),
+('sql',         '业务需求',       'epics',                    '1', 'rnd', 'admin', '1970-01-01 00:00:01', 'select id,title from zt_story where deleted=\"0\" type=\"epic\"',    'view_datasource_2',    'id',   'title'),
 ('sql',         '任务',           'tasks',                    '1', 'rnd', 'admin', '1970-01-01 00:00:01', 'select id,name from zt_task where deleted=\"0\" and vision=\"rnd\"',      'view_datasource_5',    'id',   'name'),
 ('sql',         'Bug',            'bugs',                     '1', 'rnd', 'admin', '1970-01-01 00:00:01', 'select id,title from zt_bug where deleted=\"0\"',      'view_datasource_6',    'id',   'title'),
 ('system',      '权限分组',       'groups',                   '1', 'rnd', 'admin', '1970-01-01 00:00:01', '{\"app\":\"system\",\"module\":\"group\",\"method\":\"getPairs\",\"methodDesc\":\"\",\"params\":[]}',  '',     '',     ''),
@@ -13667,6 +13712,8 @@ INSERT INTO `zt_workflowdatasource` (`type`, `name`, `code`, `buildin`, `vision`
 ('lang',        '需求管理周期',   'demandDuration',           '1', 'or',  'admin',  '1970-01-01 00:00:01', 'demandDuration', '', '', ''),
 ('lang',        '需求BSA',        'demandBSA',                '1', 'or',  'admin',  '1970-01-01 00:00:01', 'demandBSA', '', '', '');
 
+DROP VIEW IF EXISTS `view_datasource_2`;
+DROP VIEW IF EXISTS `view_datasource_3`;
 DROP VIEW IF EXISTS `view_datasource_4`;
 DROP VIEW IF EXISTS `view_datasource_5`;
 DROP VIEW IF EXISTS `view_datasource_6`;
@@ -13677,7 +13724,9 @@ DROP VIEW IF EXISTS `view_datasource_41`;
 DROP VIEW IF EXISTS `view_datasource_54`;
 DROP VIEW IF EXISTS `view_datasource_55`;
 
-CREATE VIEW `view_datasource_4`  AS select `id`,`title` from `zt_story` where `deleted` = '0';
+CREATE VIEW `view_datasource_2`  AS select `id`,`title` from `zt_story` where `deleted` = '0' and type = 'epic';
+CREATE VIEW `view_datasource_3`  AS select `id`,`title` from `zt_story` where `deleted` = '0' and type = 'requirement';
+CREATE VIEW `view_datasource_4`  AS select `id`,`title` from `zt_story` where `deleted` = '0' and type = 'story';
 CREATE VIEW `view_datasource_5`  AS select `id`,`name` from `zt_task` where `deleted` = '0' and vision = 'rnd';
 CREATE VIEW `view_datasource_6`  AS select `id`,`title` from `zt_bug` where `deleted` = '0';
 CREATE VIEW `view_datasource_10` AS select `id`,`name` from `zt_build` where `deleted` = '0';
diff --git a/doc/CHANGELOG b/doc/CHANGELOG
index af83e49d64..ef2df5ad2f 100644
--- a/doc/CHANGELOG
+++ b/doc/CHANGELOG
@@ -1925,6 +1925,11 @@ IPD版：
 50408 瀑布项目仪表盘区块没有提示文案
 50411 专业研发看板中新建需求时选择其他区域保存后显示在了默认区域
 50425 安装首页鼠标悬浮禅道软件公司时的链接不对
+50431 新手教程点击创建项目按钮报错
+50436 合并请求列表中开放中筛选标签不能正常筛选
+50437 无迭代项目下的bug转任务跳转到了添加执行表单
+50450 升级新版本时，有代码报错
+50453 多分支产品的关联项目数显示不对
 50426 新手教程创建账号页面没有引导
 50427 新手教程创建账号页面没有按顺序提示
 50428 新手教程创建账号页面页面有多余提示框
@@ -1970,6 +1975,7 @@ IPD版：
 50547 待处理用例编辑页保存后跳转不对
 50551 搜索没有权限的执行的任务ID有报错
 50552 提测版本关联了主干+分支时，测试下点测试单有报错
+>>>>>>> master
 
 2024-04-30 20.0
 完成的需求
diff --git a/framework/control.class.php b/framework/control.class.php
index 11d53f19d4..362d020667 100644
--- a/framework/control.class.php
+++ b/framework/control.class.php
@@ -519,8 +519,8 @@ class control extends baseControl
         if($this->config->edition == 'open') return $fields;
         if(!empty($this->app->installing) || !empty($this->app->upgrading)) return $fields;
 
-        $moduleName = $moduleName ? $moduleName : $this->app->getModuleName();
-        $methodName = $methodName ? $moduleName : $this->app->getMethodName();
+        $moduleName = $moduleName ? $moduleName : $this->app->rawModule;
+        $methodName = $methodName ? $moduleName : $this->app->rawMethod;
 
         $flow = $this->loadModel('workflow')->getByModule($moduleName);
         if(!$flow) return $fields;
@@ -546,8 +546,8 @@ class control extends baseControl
         if($this->config->edition == 'open') return '';
         if(!empty($this->app->installing) || !empty($this->app->upgrading)) return '';
 
-        $moduleName = $moduleName ? $moduleName : $this->app->getModuleName();
-        $methodName = $methodName ? $methodName : $this->app->getMethodName();
+        $moduleName = $moduleName ? $moduleName : $this->app->rawModule;
+        $methodName = $methodName ? $methodName : $this->app->rawMethod;
 
         $flow = $this->loadModel('workflow')->getByModule($moduleName);
         if(!$flow) return '';
@@ -585,8 +585,8 @@ class control extends baseControl
         if($this->config->edition == 'open') return array();
         if(!empty($this->app->installing) || !empty($this->app->upgrading)) return array();
 
-        $moduleName = $moduleName ? $moduleName : $this->app->getModuleName();
-        $methodName = $methodName ? $moduleName : $this->app->getMethodName();
+        $moduleName = $moduleName ? $moduleName : $this->app->rawModule;
+        $methodName = $methodName ? $moduleName : $this->app->rawMethod;
 
         if(!$object) $object = new stdclass();
 
diff --git a/framework/model.class.php b/framework/model.class.php
index f935518644..a28bc2f47b 100644
--- a/framework/model.class.php
+++ b/framework/model.class.php
@@ -290,6 +290,7 @@ class model extends baseModel
      */
     public function processStatus($module, $record)
     {
+        if($module == 'story') $module = $record->type;
         if($this->config->edition == 'open' or empty($record->subStatus)) return zget($this->lang->$module->statusList, $record->status);
 
         return $this->loadModel('workflowfield')->processSubStatus($module, $record);
diff --git a/framework/router.class.php b/framework/router.class.php
index 7dc14f697d..a5f27dfa62 100755
--- a/framework/router.class.php
+++ b/framework/router.class.php
@@ -258,7 +258,7 @@ class router extends baseRouter
 
             try
             {
-                $commonSettings = $this->dbQuery('SELECT `section`, `key`, `value` FROM' . TABLE_CONFIG . "WHERE `owner`='system' AND (`module`='custom' or `module`='common') and `key` in ('sprintConcept', 'hourPoint', 'URSR', 'mode', 'URAndSR', 'scoreStatus', 'disabledFeatures', 'closedFeatures')")->fetchAll();
+                $commonSettings = $this->dbQuery('SELECT `section`, `key`, `value` FROM' . TABLE_CONFIG . "WHERE `owner`='system' AND (`module`='custom' or `module`='common') and `key` in ('sprintConcept', 'hourPoint', 'URSR', 'mode', 'URAndSR', 'enableER', 'scoreStatus', 'disabledFeatures', 'closedFeatures')")->fetchAll();
             }
             catch (PDOException $exception)
             {
@@ -266,7 +266,7 @@ class router extends baseRouter
             }
         }
 
-        $hourKey = $planKey = $URSR = $URAndSR = 0;
+        $hourKey = $planKey = $URSR = $URAndSR = $enableER = 0;
 
         $mode             = 'ALM';
         $score            = '0';
@@ -280,6 +280,7 @@ class router extends baseRouter
             if($setting->key == 'hourPoint')                                     $hourKey          = $setting->value;
             if($setting->key == 'URSR')                                          $URSR             = $setting->value;
             if($setting->key == 'URAndSR')                                       $URAndSR          = $setting->value;
+            if($setting->key == 'enableER')                                      $enableER         = $setting->value;
             if($setting->key == 'mode' and $setting->section == 'global')        $mode             = $setting->value;
             if($setting->key == 'scoreStatus' and $setting->section == 'global') $score            = $setting->value;
             if($setting->key == 'disabledFeatures')                              $disabledFeatures = $setting->value;
@@ -313,7 +314,8 @@ class router extends baseRouter
 
         /* User preference init. */
         $config->URSR          = $URSR;
-        $config->URAndSR       = ($URAndSR and !str_contains(",{$config->disabledFeatures},", ',productUR,'));
+        $config->URAndSR       = ($URAndSR  and !str_contains(",{$config->disabledFeatures},", ',productUR,'));
+        $config->enableER      = ($enableER and !str_contains(",{$config->disabledFeatures},", ',productER,'));
         $config->programLink   = 'program-browse';
         $config->productLink   = 'product-all';
         $config->projectLink   = 'project-browse';
@@ -338,8 +340,9 @@ class router extends baseRouter
              if($setting->key == 'executionLink') $config->executionLink = $setting->value;
         }
 
-        $lang->URCommon = '';
-        $lang->SRCommon = '';
+        $lang->ERCommon = $config->storyCommonList[$this->clientLang]['epic'];
+        $lang->URCommon = $config->storyCommonList[$this->clientLang]['requirement'];
+        $lang->SRCommon = $config->storyCommonList[$this->clientLang]['story'];
         if($this->dbh and !empty($this->config->db->name))
         {
             if(!$this->upgrading)
@@ -350,16 +353,19 @@ class router extends baseRouter
                 if(empty($URSRList)) $URSRList = $this->dbQuery('SELECT `key`, `value` FROM' . TABLE_LANG . "WHERE module = 'custom' and `section` = 'URSRList' and `key` = '{$config->URSR}'")->fetchAll();
 
                 /* Get UR pairs and SR pairs. */
+                $ERPairs  = array();
                 $URPairs  = array();
                 $SRPairs  = array();
                 foreach($URSRList as $id => $value)
                 {
-                    $URSR = json_decode((string) $value->value);
-                    $URPairs[$value->key] = $URSR->URName;
-                    $SRPairs[$value->key] = $URSR->SRName;
+                    $URSRObj = json_decode((string) $value->value);
+                    $ERPairs[$value->key] = $URSRObj->ERName;
+                    $URPairs[$value->key] = $URSRObj->URName;
+                    $SRPairs[$value->key] = $URSRObj->SRName;
                 }
 
                 /* Set default story concept and init UR and SR concept. */
+                $lang->ERCommon = $ERPairs[$config->URSR] ?? reset($ERPairs);
                 $lang->URCommon = $URPairs[$config->URSR] ?? reset($URPairs);
                 $lang->SRCommon = $SRPairs[$config->URSR] ?? reset($SRPairs);
 
@@ -370,7 +376,13 @@ class router extends baseRouter
                     $customMenus = $this->dbQuery('SELECT * FROM' . TABLE_LANG . "WHERE `module`='common' AND `lang`='{$this->clientLang}' AND `section`='' AND `vision`='{$config->vision}'")->fetchAll();
                 }
                 catch(PDOException){}
-                foreach($customMenus as $menu) if(isset($lang->{$menu->key})) $lang->{$menu->key} = $menu->value;
+
+                foreach($customMenus as $menu)
+                {
+                    /* Modified the language item of dev story-related navigation, which will only affect users whose personalized value is the same as the story concept default value.*/
+                    if(in_array($menu->key, array('ERCommon', 'URCommon', 'SRCommon')) && $URSR != $config->URSR) continue;
+                    if(isset($lang->{$menu->key})) $lang->{$menu->key} = $menu->value;
+                }
             }
         }
     }
diff --git a/lib/base/front/front.class.php b/lib/base/front/front.class.php
index f04073ad50..6f72aa7a53 100644
--- a/lib/base/front/front.class.php
+++ b/lib/base/front/front.class.php
@@ -1191,6 +1191,8 @@ EOT;
         $jsConfig->themeRoot      = $themeRoot;
         $jsConfig->currentModule  = $moduleName;
         $jsConfig->currentMethod  = $methodName;
+        $jsConfig->rawModule      = $app->rawModule;
+        $jsConfig->rawMethod      = $app->rawMethod;
         $jsConfig->clientLang     = $clientLang;
         $jsConfig->requiredFields = $requiredFields;
         $jsConfig->router         = $app->server->SCRIPT_NAME;
diff --git a/lib/form/form.class.php b/lib/form/form.class.php
index 9bb618ecd4..8da1aeac92 100644
--- a/lib/form/form.class.php
+++ b/lib/form/form.class.php
@@ -110,8 +110,8 @@ class form extends fixer
         global $app, $config;
         if($config->edition == 'open' ||  !empty($app->installing)) return $configObject;
 
-        $moduleName = $moduleName ? $moduleName : $app->getModuleName();
-        $methodName = $methodName ? $moduleName : $app->getMethodName();
+        $moduleName = $moduleName ? $moduleName : $app->rawModule;
+        $methodName = $methodName ? $moduleName : $app->rawMethod;
 
         $flow = $app->control->loadModel('workflow')->getByModule($moduleName);
         if(!$flow) return $configObject;
@@ -193,8 +193,9 @@ class form extends fixer
     {
         global $app, $config;
 
-        $module = $app->getModuleName();
+        $module = $app->getModuleName() == 'story' ? $app->rawModule : $app->getModuleName();
         $method = $app->getMethodName();
+
         if($method == 'batchcreate') $method = 'create';
         if($method == 'batchedit')   $method = 'edit';
 
diff --git a/lib/zin/core/node.class.php b/lib/zin/core/node.class.php
index 628c53c8dc..d2e61af7d4 100644
--- a/lib/zin/core/node.class.php
+++ b/lib/zin/core/node.class.php
@@ -59,8 +59,7 @@ class node implements \JsonSerializable
 
     public function __construct(mixed ...$args)
     {
-        global $config;
-        $this->gid   = (isset($config->clientCache) && $config->clientCache) ? static::nextGid() : 'zin_' . uniqid();
+        $this->gid   = 'zin_' . uniqid();
         $this->props = new props();
 
         disableGlobalRender();
diff --git a/lib/zin/wg/formsettingbtn/js/v1.js b/lib/zin/wg/formsettingbtn/js/v1.js
index 8e50afc076..1abf5b58d5 100644
--- a/lib/zin/wg/formsettingbtn/js/v1.js
+++ b/lib/zin/wg/formsettingbtn/js/v1.js
@@ -19,7 +19,16 @@ window.cancelFormSetting = function(e)
 
 window.revertDefaultFields = function(e)
 {
-    $.getJSON($(e.target).closest('button').data('url'), function(response)
+    const $panel     = $(e.target).closest('.panel-form');
+    const $form      = $(e.target).closest('form');
+    const $globalBox = $panel.find('.form-actions input[name=global]');
+    const submitUrl  = $(e.target).closest('button').data('url');
+
+    postData = new FormData();
+    postData.append('action', 'reset');
+    if($globalBox.length > 0) postData.append('global', $globalBox.prop('checked') ? '1' : '0');
+
+    $.post(submitUrl, postData, function(response)
     {
         const customFields = response.customFields.split(',');
         const showFields   = response.showFields.split(',');
@@ -41,9 +50,14 @@ window.onSubmitFormtSetting = function(e)
 {
     const customFields = [];
     const showFields   = [];
+    const $panel       = $(e.target).closest('.panel-form');
     const $form        = $(e.target).closest('form');
+    const $globalBox   = $panel.find('.form-actions input[name=global]');
 
-    $.post($form.attr('action'), new FormData($form[0]), function()
+    postData = new FormData($form[0]);
+    if($globalBox.length > 0) postData.append('global', $globalBox.prop('checked') ? '1' : '0');
+
+    $.post($form.attr('action'), postData, function()
     {
         $form.find('input[type="checkbox"]').each(function()
         {
diff --git a/lib/zin/wg/formsettingbtn/v1.php b/lib/zin/wg/formsettingbtn/v1.php
index 6cc11e806c..344da48fda 100644
--- a/lib/zin/wg/formsettingbtn/v1.php
+++ b/lib/zin/wg/formsettingbtn/v1.php
@@ -15,8 +15,13 @@ namespace zin;
 class formSettingBtn extends wg
 {
     protected static array $defaultProps = array(
-        'customFields' => array(),
-        'urlParams'    => ''
+        'customFields'    => array(),
+        'urlParams'       => '',
+        'canGlobal'       => false,
+        'submitCallBack'  => '',
+        'restoreCallBack' => '',
+        'noCancel'        => false,
+        'text'            => ''
     );
 
     public static function getPageCSS(): ?string
@@ -52,18 +57,26 @@ class formSettingBtn extends wg
 
     protected function build()
     {
+        list($urlParams, $text, $submitCallback, $restoreCallback, $canGlobal, $noCancel) = $this->prop(array('urlParams', 'text', 'submitCallback', 'restoreCallback', 'canGlobal', 'noCancel'));
         $customFields = $this->prop('customFields', array());
+        $urlParams    = $this->prop('urlParams', '');
 
         global $lang;
 
-        $customLink = createLink('custom', 'ajaxSaveCustomFields', $this->prop('urlParams', ''));
-        $cancelLink = createLink('custom', 'ajaxGetCustomFields', $this->prop('urlParams', ''));
+        if($canGlobal)
+        {
+            global $app;
+            $app->loadLang('datatable'); // Use lang->datatable->setGlobal variable.
+        }
+
+        $customLink = createLink('custom', 'ajaxSaveCustomFields', $urlParams);
+        $cancelLink = createLink('custom', 'ajaxGetCustomFields', $urlParams);
         return dropdown
         (
             set::arrow('false'),
             set::placement('bottom-end'),
             set::id('formSettingBtn'),
-            to::trigger(btn(set::icon('cog-outline'), setClass('ghost'), set::caret(false))),
+            to::trigger(btn(set::icon('cog-outline'), $text, setClass('ghost'), set::caret(false))),
             to::menu(menu
             (
                 setClass('dropdown-menu'),
@@ -76,11 +89,15 @@ class formSettingBtn extends wg
                     set::showExtra(false),
                     set::actions(array
                     (
-                        btn(set::text($lang->save), setClass('primary'), on::click('onSubmitFormtSetting')),
-                        btn(set::text($lang->cancel), set::btnType('button'), on::click('cancelFormSetting'), set('data-url', $cancelLink)),
-                        btn(set::text($lang->restore), setClass('text-primary ghost'), set::href('#'), set('data-url', $customLink), on::click('revertDefaultFields'))
+                        $canGlobal ? checkList(set::name('global'), setClass('whitespace-nowrap'), set::style(array('padding' => 0)), set::inline(true), set::items(array(array('text' => $lang->datatable->setGlobal, 'value' => '1')))) : null,
+                        btn(set::text($lang->save), setClass('primary'), on::click('onSubmitFormtSetting'), $submitCallback ? on::click($submitCallback) : null),
+                        $noCancel ? null : btn(set::text($lang->cancel), set::btnType('button'), on::click('cancelFormSetting'), set('data-url', $cancelLink)),
+                        btn(set::text($lang->restore), setClass('text-primary ghost'), set('data-url', $customLink), on::click('revertDefaultFields'), $restoreCallback ? on::click($restoreCallback) : null)
+                    )),
+                    to::headingActions(array
+                    (
+                        btn(set::icon('close'), setClass('ghost'), set::size('sm'), on::click('closeCustomPopupMenu'))
                     )),
-                    to::headingActions(array(btn(set::icon('close'), setClass('ghost'), set::size('sm'), on::click('closeCustomPopupMenu')))),
                     $this->buildCustomFields($customFields)
                 )
             ))
diff --git a/lib/zin/wg/globalsearch/js/v1.js b/lib/zin/wg/globalsearch/js/v1.js
index 668bd8ebff..2c63a83956 100644
--- a/lib/zin/wg/globalsearch/js/v1.js
+++ b/lib/zin/wg/globalsearch/js/v1.js
@@ -18,8 +18,8 @@ window.getGlobalSearchType = function()
         return pageWindow.globalSearchType;
     }
 
-    const moduleName = pageWindow.config.currentModule;
-    const methodName = pageWindow.config.currentMethod;
+    const moduleName = pageWindow.config.rawModule;
+    const methodName = pageWindow.config.rawMethod;
 
     if(moduleName == 'product' && methodName == 'browse') return 'story';
     if(moduleName == 'my' || moduleName == 'user') return methodName;
diff --git a/lib/zin/wg/linkedstorylist/v1.php b/lib/zin/wg/linkedstorylist/v1.php
index 71f8732724..6406704391 100644
--- a/lib/zin/wg/linkedstorylist/v1.php
+++ b/lib/zin/wg/linkedstorylist/v1.php
@@ -10,7 +10,6 @@ class linkedStoryList extends storyList
     protected static array $defineProps = array
     (
         'story'          => '?object',      // 被关联的需求。
-        'relationType'   => '?string',      // 关联类型。
         'unlinkBtn'      => '?array|bool',  // 取消关联按钮。
         'unlinkStoryTip' => '?string',      // 取消关联提示信息。
         'unlinkUrl'      => '?string',      // 取消关联需求链接
@@ -42,21 +41,12 @@ class linkedStoryList extends storyList
 
     protected null|array|bool $unlinkBtn = null;
 
-    protected ?string $relationType = null;
-
     protected function beforeBuild()
     {
         $story = $this->prop('story');
         if(!$story) $story = data('story');
         if(!$story) return;
 
-        $relationType = $this->prop('relationType');
-        if(!$relationType) $relationType = $story->type == 'story' ? 'requirement' : 'story';
-
-        $viewUrl = $this->prop('viewUrl');
-        if($viewUrl === null) $viewUrl = hasPriv($relationType, 'view', null, "storyType=$relationType");
-        if($viewUrl === true) $viewUrl = createLink('story', 'view', "id={id}&version=0&param=0&storyType=$relationType");
-
         $unlinkUrl = $this->prop('unlinkUrl');
         if($unlinkUrl === null) $unlinkUrl = createLink('story', 'linkStory', "storyID={$story->id}&type=remove&linkedID={id}&browseType=&queryID=0&storyType=$story->type");
 
@@ -64,11 +54,9 @@ class linkedStoryList extends storyList
         $unlinkBtn = $this->prop('unlinkBtn');
         if($unlinkBtn === null)  $unlinkBtn = $canLink;
 
-        $this->story        = $story;
-        $this->relationType = $relationType;
-        $this->viewUrl      = $viewUrl;
-        $this->unlinkUrl    = $unlinkUrl;
-        $this->unlinkBtn    = $unlinkBtn;
+        $this->story     = $story;
+        $this->unlinkUrl = $unlinkUrl;
+        $this->unlinkBtn = $unlinkBtn;
     }
 
     protected function getItem(object $story): array
@@ -90,7 +78,7 @@ class linkedStoryList extends storyList
                 'data-url'    => str_replace('{id}', "$story->id", $this->unlinkUrl),
                 'data-params' => 'event',
                 'data-call'   => 'unlinkStory',
-                'hint'        => $story->type == 'requirement' ? str_replace($lang->SRCommon, $lang->URCommon, $lang->story->unlinkStory) : $lang->story->unlinkStory
+                'hint'        => $lang->story->unlink
             );
 
             if(is_array($unlinkBtn)) $btn = array_merge($btn, $unlinkBtn);
@@ -135,7 +123,7 @@ class linkedStoryList extends storyList
                 setData(array('toggle' => 'modal', 'size' => 'lg')),
                 setID('linkButton'),
                 is_array($newLinkBtn) ? set($newLinkBtn) : null,
-                $lang->story->link . ($story->type == 'story' ? $lang->story->requirement : $lang->story->story)
+                $lang->story->linkStory
             );
             return array($list, $btn);
         }
diff --git a/lib/zin/wg/pripicker/v1.php b/lib/zin/wg/pripicker/v1.php
index 74865292a7..9171c0958a 100644
--- a/lib/zin/wg/pripicker/v1.php
+++ b/lib/zin/wg/pripicker/v1.php
@@ -76,6 +76,7 @@ class priPicker extends wg
             $moduleName = $app->getModuleName();
             if(isset($lang->$moduleName->priList)) $props['items'] = $lang->$moduleName->priList;
         }
+        if(isset($props['items'][0])) unset($props['items'][0]);
         return zui::priPicker
         (
             set::_class('form-group-wrapper'),
diff --git a/lib/zin/wg/searchtoggle/v1.php b/lib/zin/wg/searchtoggle/v1.php
index 7a03b84fc1..f0e47e5f3a 100644
--- a/lib/zin/wg/searchtoggle/v1.php
+++ b/lib/zin/wg/searchtoggle/v1.php
@@ -9,7 +9,8 @@ class searchToggle extends wg
         'open?: bool',
         'module?: string',
         'url?: string',
-        'searchUrl?: string'
+        'searchUrl?: string',
+        'text?: string'
     );
 
     public static function getPageCSS(): ?string
@@ -29,10 +30,11 @@ class searchToggle extends wg
     protected function build()
     {
         global $lang, $app, $config;
-        list($target, $module, $open, $url, $searchUrl) = $this->prop(array('target', 'module', 'open', 'url', 'searchUrl'));
+        list($target, $module, $open, $url, $searchUrl, $text) = $this->prop(array('target', 'module', 'open', 'url', 'searchUrl', 'text'));
 
         if(is_null($open) && !empty($_GET['browseType'])) $open = $_GET['browseType'] === 'bySearch';
         if(is_null($module)) $module = $app->rawModule;
+        if(empty($text)) $text = $lang->searchAB;
 
         if(isset($config->zin->mode) && $config->zin->mode == 'compatible')
         {
@@ -45,7 +47,7 @@ class searchToggle extends wg
             set::className('search-form-toggle rounded-full gray-300-outline size-sm'),
             set::icon('search'),
             set::active($open),
-            set::text($lang->searchAB),
+            set::text($text),
             toggle::searchform(array('module' => $module, 'target' => $target, 'url' => $url, 'searchUrl' => $searchUrl)),
             $open ? on::init()->call('zui.toggleSearchForm', array('module' => $module, 'target' => $target, 'show' => $open, 'url' => $url, 'searchUrl' => $searchUrl)) : on::init()->do('$element.closest(".show-search-form").removeClass("show-search-form").find(".search-form[data-module=' . $module . ']").remove()')
         );
diff --git a/lib/zin/wg/storybasicinfo/v1.php b/lib/zin/wg/storybasicinfo/v1.php
index c033030b05..0130206ed6 100644
--- a/lib/zin/wg/storybasicinfo/v1.php
+++ b/lib/zin/wg/storybasicinfo/v1.php
@@ -78,6 +78,8 @@ class storyBasicInfo extends wg
         $hiddenPlan = $this->prop('hiddenPlan', data('hiddenPlan'));
         $statusText = $this->prop('statusText', $story->status);
         $users      = $this->prop('users', data('users'));
+        $gradePairs = $this->prop('gradePairs', data('gradePairs'));
+        $showGrade  = $this->prop('showGrade', data('showGrade'));
         $items      = array();
 
         if(!$product->shadow)
@@ -93,7 +95,22 @@ class storyBasicInfo extends wg
             'control' => 'breadcrumb',
             'items'   => $this->getModuleItems($story, $product)
         );
-        if($story->type != 'requirement' and $story->parent != -1 and !$hiddenPlan)
+        if(isset($story->parentName))
+        {
+            $items[$lang->story->parent] = array(
+                'control' => 'text',
+                'content' => $story->parentName
+            );
+        }
+        if($showGrade)
+        {
+            $items[$lang->story->grade] = array
+            (
+                'control' => 'text',
+                'content' => zget($gradePairs, $story->grade)
+            );
+        }
+        if(!$hiddenPlan)
         {
             $planTitleItems = array();
             if(isset($story->planTitle) && $story->planTitle)
@@ -104,7 +121,7 @@ class storyBasicInfo extends wg
                     (
                         'control' => 'link',
                         'url'     => createLink('productplan', 'view', "planID=$planID"),
-                        'text'    => $planTitle
+                        'text'    => $planTitle . ' '
                     ) : $planTitle;
                 }
             }
diff --git a/lib/zin/wg/storylist/v1.php b/lib/zin/wg/storylist/v1.php
index e08c936cff..0fe94469c9 100644
--- a/lib/zin/wg/storylist/v1.php
+++ b/lib/zin/wg/storylist/v1.php
@@ -10,4 +10,53 @@ class storyList extends entitylist
     (
         'type' => 'story'
     );
+
+    protected function getItem(object $entity): array
+    {
+        $item = array
+        (
+            'innerClass'   => 'px-0 relative group',
+            'leading'      => array(),
+            'innerTag'     => 'div',
+            'titleClass'   => 'flex gap-2 items-center flex-auto min-w-0',
+            'textClass'    => 'flex-none',
+            'actionsClass' => $this->compact ? 'absolute top-0.5 right-0' : null,
+            'hint'         => $entity->title,
+            'title'        => span(setClass('text-clip'), $entity->title),
+            'leading'      => idLabel::create($entity->id)
+        );
+
+        if(hasPriv($entity->type, 'view'))
+        {
+            $item['titleAttrs'] = array('data-toggle' => 'modal', 'data-size' => 'lg');
+            $item['url']        = createLink($entity->type, 'view', "id=$entity->id");
+        }
+
+        return $item;
+    }
+
+    protected function getItems()
+    {
+        global $lang;
+        $items = $this->prop('items', array());
+        $list  = array();
+
+        foreach($items as $key => $entity)
+        {
+            if(is_object($entity))
+            {
+                $list[] = $this->getItem($entity);
+            }
+            elseif(is_array($entity))
+            {
+                $list[] = array('id' => $key, 'title' => $lang->story->typeList[$key]);
+                foreach($entity as $subEntity)
+                {
+                    $list[] = $this->getItem($subEntity);
+                }
+            }
+        }
+
+        return $list;
+    }
 }
diff --git a/lib/zin/wg/storyrelatedlist/v1.php b/lib/zin/wg/storyrelatedlist/v1.php
index d2c5ed447a..b6e86683a9 100644
--- a/lib/zin/wg/storyrelatedlist/v1.php
+++ b/lib/zin/wg/storyrelatedlist/v1.php
@@ -35,7 +35,6 @@ class storyRelatedList extends relatedList
         $cases         = $this->prop('cases', data('cases'));
         $builds        = $this->prop('builds', data('builds'));
         $releases      = $this->prop('releases', data('releases'));
-        $storyProducts = $this->prop('storyProducts', data('storyProducts'));
         $linkedMRs     = $this->prop('linkedMRs', data('linkedMRs'));
         $linkedCommits = $this->prop('linkedCommits', data('linkedCommits'));
         $data          = array();
@@ -90,26 +89,6 @@ class storyRelatedList extends relatedList
             );
         }
 
-        $data['story'] = array
-        (
-            'title'      => $lang->story->linkStories,
-            'items'      => isset($story->linkStoryList) ? $story->linkStoryList : array(),
-            'url'        => false,
-            'statusList' => $lang->story->statusList,
-            'onRender' => function($item, $linkedStory) use($storyProducts, $story, $app)
-            {
-                $storyID = $linkedStory->id;
-                $hasPriv = ($app->user->admin || str_contains(",{$app->user->view->products},", ",{$storyProducts[$storyID]},"));
-                $item['url'] = $hasPriv ? createLink('story', 'view', "storyID=$storyID&version=0&param=0&storyType=$story->type") : false;
-                if($hasPriv)
-                {
-                    $item['data-toggle'] = 'modal';
-                    $item['data-size']   = 'lg';
-                }
-                return $item;
-            }
-        );
-
         if($isStoryType && helper::hasFeature('devops'))
         {
             $data['mr'] = array
diff --git a/misc/ci/Jenkinsfile b/misc/ci/Jenkinsfile
index 0486928444..64cb88b883 100644
--- a/misc/ci/Jenkinsfile
+++ b/misc/ci/Jenkinsfile
@@ -628,7 +628,7 @@ pipeline {
               def j = job.newJob()
               j.SaveHeadReport('./.head.md')
               ximNotify(title: "禅道镜像构建成功", contentFile: "report.md", contentHeaderFile: './.head.md')
-              
+
               if (env.DEPLOY_ZENTAOPAAS=='true') {
                 deploy.upgradePaas(env.ZENTAOPAAS_SERVER, env.CNE_API_TOKEN)
                 ximNotify(title: "禅道平台版DEMO部署成功", content: "访问地址 ["+env.ZENTAOPAAS_SERVER+"]("+env.ZENTAOPAAS_SERVER+")")
@@ -701,5 +701,3 @@ pipeline {
   }
 
 }
-
-
diff --git a/module/action/config.php b/module/action/config.php
index e9ff5031b9..bf6f8116ce 100755
--- a/module/action/config.php
+++ b/module/action/config.php
@@ -1,5 +1,6 @@
 <?php
 $config->action->objectNameFields['product']      = 'name';
+$config->action->objectNameFields['epic']         = 'title';
 $config->action->objectNameFields['story']        = 'title';
 $config->action->objectNameFields['requirement']  = 'title';
 $config->action->objectNameFields['productplan']  = 'title';
@@ -82,7 +83,7 @@ $config->action->majorList['execution'] = array('opened', 'edited');
 $config->action->majorList['doc']       = array('releaseddoc');
 
 $config->action->needGetProjectType       = 'build,task,bug,case,testcase,caselib,testtask,testsuite,testreport,doc,issue,release,risk,design,opportunity,trainplan,gapanalysis,researchplan,researchreport,';
-$config->action->needGetRelateField       = ',branch,story,productplan,release,task,build,bug,testcase,case,testtask,testreport,doc,doclib,issue,risk,opportunity,trainplan,gapanalysis,team,whitelist,researchplan,researchreport,meeting,kanbanlane,kanbancolumn,module,review,';
+$config->action->needGetRelateField       = ',branch,story,epic,requirement,productplan,release,task,build,bug,testcase,case,testtask,testreport,doc,doclib,issue,risk,opportunity,trainplan,gapanalysis,team,whitelist,researchplan,researchreport,meeting,kanbanlane,kanbancolumn,module,review,';
 $config->action->noLinkModules            = ',doclib,module,webhook,gitlab,instance,gitea,gogs,sonarqube,pipeline,jenkins,kanban,kanbanspace,kanbancolumn,kanbanlane,kanbanregion,kanbancard,execution,project,traincategory,apistruct,program,product,user,entry,repo,pivot,scene,boardspace,auditplan,auditresult,';
 $config->action->ignoreObjectType4Dynamic = 'kanbanregion,kanbanlane,kanbancolumn';
 $config->action->ignoreActions4Dynamic    = 'disconnectxuanxuan,reconnectxuanxuan,loginxuanxuan,logoutxuanxuan,editmr,removemr';
diff --git a/module/action/lang/de.php b/module/action/lang/de.php
index 755abf2e2c..7ea8ad7f45 100644
--- a/module/action/lang/de.php
+++ b/module/action/lang/de.php
@@ -104,6 +104,7 @@ $lang->action->dynamic->search     = 'Suche';
 
 $lang->action->objectTypes['product']          = $lang->productCommon;
 $lang->action->objectTypes['branch']           = 'Branch';
+$lang->action->objectTypes['epic']             = $lang->ERCommon;
 $lang->action->objectTypes['story']            = $lang->SRCommon;
 $lang->action->objectTypes['requirement']      = $lang->URCommon;
 $lang->action->objectTypes['design']           = 'Design';
@@ -199,6 +200,7 @@ $lang->action->desc->edited               = '$date, bearbeitet von <strong>$acto
 $lang->action->desc->assigned             = '$date, <strong>$actor</strong> zugewisen an <strong>$extra</strong>.' . "\n";
 $lang->action->desc->closed               = '$date, geschlossen von <strong>$actor</strong> .' . "\n";
 $lang->action->desc->closedbysystem       = '$date, closed by system.' . "\n";
+$lang->action->desc->closedbyparent       = '$date, closed by system.' . "\n";
 $lang->action->desc->deleted              = '$date, gelöscht von <strong>$actor</strong> .' . "\n";
 $lang->action->desc->deletedfile          = '$date, <strong>$actor</strong> löschte <strong><i>$extra</i></strong>.' . "\n";
 $lang->action->desc->editfile             = '$date, <strong>$actor</strong> bearbeitete <strong><i>$extra</i></strong>.' . "\n";
@@ -442,6 +444,7 @@ $lang->action->label->unlinkchildrenstory     = "unlinked a child story";
 $lang->action->label->linkparentstory         = "linked a parent story";
 $lang->action->label->unlinkparentstory       = "unlink from parent story";
 $lang->action->label->deletechildrenstory     = "delete children story";
+$lang->action->label->syncgrade               = 'synced grade';
 $lang->action->label->tracked                 = 'tracked';
 $lang->action->label->hangup                  = 'hangup';
 $lang->action->label->run                     = 'run';
diff --git a/module/action/lang/en.php b/module/action/lang/en.php
index 09c6694c6a..8efa20cd9f 100755
--- a/module/action/lang/en.php
+++ b/module/action/lang/en.php
@@ -104,6 +104,7 @@ $lang->action->dynamic->search     = 'Search';
 
 $lang->action->objectTypes['product']          = $lang->productCommon;
 $lang->action->objectTypes['branch']           = 'Branch';
+$lang->action->objectTypes['epic']             = $lang->ERCommon;
 $lang->action->objectTypes['story']            = $lang->SRCommon;
 $lang->action->objectTypes['requirement']      = $lang->URCommon;
 $lang->action->objectTypes['design']           = 'Design';
@@ -199,6 +200,7 @@ $lang->action->desc->edited               = '$date, edited by <strong>$actor</st
 $lang->action->desc->assigned             = '$date, <strong>$actor</strong> assigned to <strong>$extra</strong>.' . "\n";
 $lang->action->desc->closed               = '$date, closed by <strong>$actor</strong> .' . "\n";
 $lang->action->desc->closedbysystem       = '$date, closed by system.' . "\n";
+$lang->action->desc->closedbyparent       = '$date, closed by system.' . "\n";
 $lang->action->desc->deleted              = '$date, deleted by <strong>$actor</strong> .' . "\n";
 $lang->action->desc->deletedfile          = '$date, <strong>$actor</strong> deleted <strong><i>$extra</i></strong>.' . "\n";
 $lang->action->desc->editfile             = '$date, <strong>$actor</strong> edited <strong><i>$extra</i></strong>.' . "\n";
@@ -442,6 +444,7 @@ $lang->action->label->unlinkchildrenstory     = "unlinked a child story";
 $lang->action->label->linkparentstory         = "linked a parent story";
 $lang->action->label->unlinkparentstory       = "unlink from parent story";
 $lang->action->label->deletechildrenstory     = "delete children story";
+$lang->action->label->syncgrade               = 'synced grade';
 $lang->action->label->tracked                 = 'tracked';
 $lang->action->label->hangup                  = 'hangup';
 $lang->action->label->run                     = 'run';
diff --git a/module/action/lang/fr.php b/module/action/lang/fr.php
index 29df5d5f3e..566fd78e55 100644
--- a/module/action/lang/fr.php
+++ b/module/action/lang/fr.php
@@ -104,6 +104,7 @@ $lang->action->dynamic->search     = 'Rechercher';
 
 $lang->action->objectTypes['product']          = $lang->productCommon;
 $lang->action->objectTypes['branch']           = 'Branche';
+$lang->action->objectTypes['epic']             = $lang->ERCommon;
 $lang->action->objectTypes['story']            = $lang->SRCommon;
 $lang->action->objectTypes['requirement']      = $lang->URCommon;
 $lang->action->objectTypes['design']           = 'Design';
@@ -199,6 +200,7 @@ $lang->action->desc->edited               = '$date, édité par <strong>$actor</
 $lang->action->desc->assigned             = '$date, <strong>$actor</strong> affecté à <strong>$extra</strong>.' . "\n";
 $lang->action->desc->closed               = '$date, fermé par <strong>$actor</strong> .' . "\n";
 $lang->action->desc->closedbysystem       = '$date, closed by system.' . "\n";
+$lang->action->desc->closedbyparent       = '$date, closed by system.' . "\n";
 $lang->action->desc->deleted              = '$date, supprimé par <strong>$actor</strong> .' . "\n";
 $lang->action->desc->deletedfile          = '$date, <strong>$actor</strong> a supprimé <strong><i>$extra</i></strong>.' . "\n";
 $lang->action->desc->editfile             = '$date, <strong>$actor</strong> a édité <strong><i>$extra</i></strong>.' . "\n";
@@ -442,6 +444,7 @@ $lang->action->label->unlinkchildrenstory     = "a décroché de la sous-story";
 $lang->action->label->linkparentstory         = "a raccroché à une story parent";
 $lang->action->label->unlinkparentstory       = "a décroché de la story parent";
 $lang->action->label->deletechildrenstory     = "a supprimé la sous-story";
+$lang->action->label->syncgrade               = 'synced grade';
 $lang->action->label->tracked                 = 'tracked';
 $lang->action->label->hangup                  = 'hangup';
 $lang->action->label->run                     = 'run';
diff --git a/module/action/lang/zh-cn.php b/module/action/lang/zh-cn.php
index 081acaae72..c3a7667ade 100755
--- a/module/action/lang/zh-cn.php
+++ b/module/action/lang/zh-cn.php
@@ -104,6 +104,7 @@ $lang->action->dynamic->search     = '搜索';
 
 $lang->action->objectTypes['product']          = $lang->productCommon;
 $lang->action->objectTypes['branch']           = '分支';
+$lang->action->objectTypes['epic']             = $lang->ERCommon;
 $lang->action->objectTypes['story']            = $lang->SRCommon;
 $lang->action->objectTypes['requirement']      = $lang->URCommon;
 $lang->action->objectTypes['design']           = '设计';
@@ -199,6 +200,7 @@ $lang->action->desc->edited               = '$date, 由 <strong>$actor</strong>
 $lang->action->desc->assigned             = '$date, 由 <strong>$actor</strong> 指派给 <strong>$extra</strong>。' . "\n";
 $lang->action->desc->closed               = '$date, 由 <strong>$actor</strong> 关闭。' . "\n";
 $lang->action->desc->closedbysystem       = '$date, 由系统关闭。' . "\n";
+$lang->action->desc->closedbyparent       = '$date, 由系统关闭。' . "\n";
 $lang->action->desc->deleted              = '$date, 由 <strong>$actor</strong> 删除。' . "\n";
 $lang->action->desc->deletedfile          = '$date, 由 <strong>$actor</strong> 删除了附件：<strong><i>$extra</i></strong>。' . "\n";
 $lang->action->desc->editfile             = '$date, 由 <strong>$actor</strong> 编辑了附件：<strong><i>$extra</i></strong>。' . "\n";
@@ -402,8 +404,8 @@ $lang->action->label->linkrelatedbug          = "关联了相关Bug";
 $lang->action->label->unlinkrelatedbug        = "移除了相关Bug";
 $lang->action->label->linkrelatedcase         = "关联了相关用例";
 $lang->action->label->unlinkrelatedcase       = "移除了相关用例";
-$lang->action->label->linkrelatedstory        = "关联了相关{$lang->SRCommon}";
-$lang->action->label->unlinkrelatedstory      = "移除了相关{$lang->SRCommon}";
+$lang->action->label->linkrelatedstory        = "关联了相关需求";
+$lang->action->label->unlinkrelatedstory      = "移除了相关需求";
 $lang->action->label->subdividestory          = "细分了{$lang->SRCommon}";
 $lang->action->label->unlinkchildstory        = "移除了细分{$lang->SRCommon}";
 $lang->action->label->started                 = '开始了';
@@ -442,6 +444,7 @@ $lang->action->label->unlinkchildrenstory     = "取消关联了子需求";
 $lang->action->label->linkparentstory         = "关联到了父需求";
 $lang->action->label->unlinkparentstory       = "从父需求取消关联了";
 $lang->action->label->deletechildrenstory     = "删除了子需求";
+$lang->action->label->syncgrade               = '同步了层级';
 $lang->action->label->tracked                 = '跟踪了';
 $lang->action->label->hangup                  = '挂起了';
 $lang->action->label->run                     = '执行了';
diff --git a/module/action/model.php b/module/action/model.php
index 4ab187b055..688eb43c20 100755
--- a/module/action/model.php
+++ b/module/action/model.php
@@ -197,16 +197,17 @@ class actionModel extends model
             if(($actionName == 'finished' && $objectType == 'todo') || ($actionName == 'closed' && in_array($action->objectType, array('story', 'demand'))) || ($actionName == 'resolved' && $action->objectType == 'bug')) $this->actionTao->processAppendLinkByExtra($action);
             if($actionName == 'distributed' && $objectType == 'story') $this->actionTao->processActionExtra(TABLE_DEMAND, $action, 'title', 'demand', 'view');
 
-            if(in_array($actionName, array('retracted', 'restored')) && $action->objectType != 'demand') $this->actionTao->processActionExtra(TABLE_STORY, $action, 'title', 'story', 'view');
+            if(in_array($actionName, array('retracted', 'restored')) && $action->objectType != 'demand') $this->actionTao->processActionExtra(TABLE_STORY, $action, 'title', 'story', 'storyView');
             if(in_array($actionName, array('totask', 'linkchildtask', 'unlinkchildrentask', 'linkparenttask', 'unlinkparenttask', 'deletechildrentask', 'converttotask')) && $action->objectType != 'feedback') $this->actionTao->processActionExtra(TABLE_TASK, $action, 'name', 'task', 'view');;
-            if(in_array($actionName, array('linkchildstory', 'unlinkchildrenstory', 'linkparentstory', 'unlinkparentstory', 'deletechildrenstory'))) $this->actionTao->processActionExtra(TABLE_STORY, $action, 'title', 'story', 'view');
+            if(in_array($actionName, array('linkchildstory', 'unlinkchildrenstory', 'linkparentstory', 'unlinkparentstory', 'deletechildrenstory'))) $this->actionTao->processActionExtra(TABLE_STORY, $action, 'title', 'story', 'storyView');
             if(in_array($actionName, array('testtaskopened', 'testtaskstarted', 'testtaskclosed'))) $this->actionTao->processActionExtra(TABLE_TESTTASK, $action, 'name', 'testtask', 'view');
             if(in_array($actionName, array('importfromstorylib', 'importfromrisklib', 'importfromissuelib', 'importfromopportunitylib')) && in_array($this->config->edition, array('max', 'ipd'))) $this->actionTao->processActionExtra(TABLE_ASSETLIB, $action, 'name', 'assetlib', $action->objectType);
             if(in_array($actionName, array('opened', 'managed', 'edited')) && in_array($objectType, array('execution', 'project'))) $this->processExecutionAndProjectActionExtra($action);
-            if(in_array($actionName, array('linkstory', 'unlinkstory', 'createchildrenstory', 'linkur', 'unlinkur'))) $this->actionTao->processLinkStoryAndBugActionExtra($action, 'story', 'view');
+            if(in_array($actionName, array('linkstory', 'unlinkstory', 'createchildrenstory', 'linkur', 'unlinkur', 'linkrelatedstory', 'unlinkrelatedstory'))) $this->actionTao->processLinkStoryAndBugActionExtra($action, 'story', 'storyView');
             if(in_array($actionName, array('linkbug', 'unlinkbug'))) $this->actionTao->processLinkStoryAndBugActionExtra($action, 'bug', 'view');
             if($actionName == 'repocreated') $action->extra = str_replace("class='iframe'", 'data-app="devops"', $action->extra);
             if($actionName == 'createdsnapshot' && in_array($action->objectType, array('vm', 'zanode')) && $action->extra == 'defaultSnap') $action->actor = $this->lang->action->system;
+            if($actionName == 'syncgrade') $this->actionTao->processStoryGradeActionExtra($action);
 
             $action->history = zget($histories, $actionID, array());
             foreach($action->history as $history)
@@ -610,7 +611,19 @@ class actionModel extends model
         $extra = strtolower($action->extra);
 
         /* Fix bug #741. */
-        if(isset($desc['extra'])) $desc['extra'] = $this->lang->{$objectType}->{$desc['extra']};
+        if(isset($desc['extra']))
+        {
+            if($objectType == 'story')
+            {
+                $story = $this->fetchByID($action->objectID, $objectType);
+                if($story->type != 'story') $this->app->loadLang($story->type);
+                $desc['extra'] = $this->lang->{$story->type}->{$desc['extra']};
+            }
+            else
+            {
+                $desc['extra'] = $this->lang->{$objectType}->{$desc['extra']};
+            }
+        }
 
         $actionDesc = '';
         if(isset($desc['extra'][$extra]))
@@ -956,7 +969,7 @@ class actionModel extends model
 
         /* 通过action获取对象名称，所属项目以及需求。 */
         /* Get object names, object projects and requirements by actions. */
-        list($objectNames, $relatedProjects, $requirements) = $this->getRelatedDataByActions($actions);
+        list($objectNames, $relatedProjects, $requirements, $epics) = $this->getRelatedDataByActions($actions);
 
         $projectIdList = array();
         foreach($relatedProjects as $objectType => $idList) $projectIdList = array_merge($projectIdList, $idList);
@@ -998,7 +1011,7 @@ class actionModel extends model
             $action->date         = date(DT_MONTHTIME2, strtotime($action->date));
             $action->actionLabel  = isset($this->lang->{$objectType}->{$actionType}) ? $this->lang->{$objectType}->{$actionType} : $action->action;
             $action->actionLabel  = isset($this->lang->action->label->{$actionType}) ? $this->lang->action->label->{$actionType} : $action->actionLabel;
-            $action->objectLabel  = $this->getObjectLabel($objectType, $action->objectID, $actionType, $requirements);
+            $action->objectLabel  = $this->getObjectLabel($objectType, $action->objectID, $actionType, $requirements, $epics);
             $action->major        = isset($this->config->action->majorList[$action->objectType]) && in_array($action->action, $this->config->action->majorList[$action->objectType]) ? 1 : 0;
             if($actionType == 'svncommited' || $actionType == 'gitcommited') $action->actor = zget($commiters, $action->actor);
 
@@ -1028,7 +1041,7 @@ class actionModel extends model
         if(isset($objectTypes['branch'])) $this->app->loadLang('branch');
         $users = isset($objectTypes['gapanalysis']) || isset($objectTypes['stakeholder']) ? $this->loadModel('user')->getPairs('noletter') : array();
 
-        $objectNames = $relatedProjects = $requirements = array();
+        $objectNames = $relatedProjects = $requirements = $epics = array();
         foreach($objectTypes as $objectType => $objectIdList)
         {
             if(!isset($this->config->objectTables[$objectType]) && $objectType != 'makeup') continue;    // If no defination for this type, omit it.
@@ -1039,7 +1052,7 @@ class actionModel extends model
             if(empty($field)) continue;
 
             /* Get object name, related projects, requirements. */
-            list($objectName, $relatedProject, $requirements) = $this->getObjectRelatedData($table, $objectType, $objectIdList, $field, $users, $requirements);
+            list($objectName, $relatedProject, $requirements, $epics) = $this->getObjectRelatedData($table, $objectType, $objectIdList, $field, $users, $requirements, $epics);
             if($objectType == 'branch' && in_array(BRANCH_MAIN, $objectIdList)) $objectName[BRANCH_MAIN] = $this->lang->branch->main;
 
             $objectNames[$objectType]     = $objectName;
@@ -1048,7 +1061,7 @@ class actionModel extends model
 
         $objectNames['user'][0] = 'guest';    // Add guest account.
 
-        return array($objectNames, $relatedProjects, $requirements);
+        return array($objectNames, $relatedProjects, $requirements, $epics);
     }
 
     /**
@@ -1059,10 +1072,11 @@ class actionModel extends model
      * @param  int    $objectID
      * @param  string $actionType
      * @param  array  $requirements
+     * @param  array  $epics
      * @access public
      * @return string
      */
-    public function getObjectLabel(string $objectType, int $objectID, string $actionType, array $requirements): string
+    public function getObjectLabel(string $objectType, int $objectID, string $actionType, array $requirements, array $epics): string
     {
         $actionObjectLabel = $objectType;
         if(isset($this->lang->action->label->{$objectType}))
@@ -1072,6 +1086,7 @@ class actionModel extends model
             /* 用户故事替换为需求。 */
             /* Replace story to requirement. */
             if(isset($requirements[$objectID]) && is_string($objectLabel)) $objectLabel = str_replace($this->lang->SRCommon, $this->lang->URCommon, $objectLabel);
+            if(isset($epics[$objectID])        && is_string($objectLabel)) $objectLabel = str_replace($this->lang->SRCommon, $this->lang->ERCommon, $objectLabel);
 
             if(!is_array($objectLabel)) $actionObjectLabel = $objectLabel;
             if(is_array($objectLabel) && isset($objectLabel[$actionType])) $actionObjectLabel = $objectLabel[$actionType];
@@ -1843,10 +1858,11 @@ class actionModel extends model
      * @param  string $field
      * @param  array  $users
      * @param  array  $requirements
+     * @param  array  $epics
      * @access public
      * @return array
      */
-    public function getObjectRelatedData(string $table, string $objectType, array $objectIdList, string $field, array $users, array $requirements): array
+    public function getObjectRelatedData(string $table, string $objectType, array $objectIdList, string $field, array $users, array $requirements, array $epics): array
     {
         $objectName     = array();
         $relatedProject = array();
@@ -1878,7 +1894,8 @@ class actionModel extends model
             {
                 $objectName[$object->id] = $object->title;
                 if($object->type == 'requirement') $requirements[$object->id] = $object->id;
-                if($object->type == 'project') $relatedProject[$object->id] = $object->id;
+                if($object->type == 'epic')        $epics[$object->id]        = $object->id;
+                if($object->type == 'project')     $relatedProject[$object->id] = $object->id;
             }
         }
         elseif($objectType == 'stakeholder') // Get stakeholder realname.
@@ -1890,7 +1907,7 @@ class actionModel extends model
         {
             $objectName = $this->dao->select("id, {$field} AS name")->from($table)->where('id')->in($objectIdList)->orderBy('id_asc')->fetchPairs();
         }
-        return array($objectName, $relatedProject, $requirements);
+        return array($objectName, $relatedProject, $requirements, $epics);
     }
 
     /**
diff --git a/module/action/tao.php b/module/action/tao.php
index cd3d28a496..8b09d3d7b6 100644
--- a/module/action/tao.php
+++ b/module/action/tao.php
@@ -449,6 +449,24 @@ class actionTao extends actionModel
         }
     }
 
+    /**
+     * 处理需求层级。
+     * Process story grade.
+     *
+     * @param  object $action
+     * @access public
+     * @return object
+     */
+    public function processStoryGradeActionExtra($action): object
+    {
+        $action->extra = $this->dao->select('t1.name')->from(TABLE_STORYGRADE)->alias('t1')
+            ->leftJoin(TABLE_STORY)->alias('t2')->on('t1.grade = t2.grade AND t1.type = t2.type')
+            ->where('t2.id')->eq($action->objectID)
+            ->fetch('name');
+
+        return $action;
+    }
+
     /**
      * 处理属性。
      * Process attribute.
@@ -488,6 +506,9 @@ class actionTao extends actionModel
                 break;
             case 'execution':
             case 'kanban':
+            case 'story':
+                $paramString = "{$type}ID={$action->extra}";
+                break;
             case 'task':
             case 'story':
             case 'charter':
@@ -593,7 +614,7 @@ class actionTao extends actionModel
     public function processLinkStoryAndBugActionExtra(object $action, string $module, string $method): void
     {
         $extra = '';
-        foreach(explode(',', $action->extra) as $id) $extra .= common::hasPriv($module, $method) ? html::a(helper::createLink($module, $method, "{$module}ID={$id}"), "#{$id} ", '', "data-size='lg' data-load='modal'") . ', ' : "#{$id}, ";
+        foreach(explode(',', $action->extra) as $id) $extra .= common::hasPriv($module, $method) ? html::a(helper::createLink($module, $method, "{$module}ID={$id}"), "#{$id} ", '', "data-size='lg' data-toggle='modal'") . ', ' : "#{$id}, ";
         $action->extra = trim(trim($extra), ',');
     }
 
diff --git a/module/admin/config.php b/module/admin/config.php
index b54d31afc2..62e4891b07 100755
--- a/module/admin/config.php
+++ b/module/admin/config.php
@@ -20,8 +20,8 @@ $config->admin->menuGroup['ai']        = array('ai|adminindex', 'ai|prompts', 'a
 
 $config->admin->menuModuleGroup['model']['custom|set']        = array('project', 'issue', 'risk', 'opportunity', 'nc');
 $config->admin->menuModuleGroup['model']['custom|required']   = array('project', 'build');
-$config->admin->menuModuleGroup['feature']['custom|set']      = array('todo', 'block', 'story', 'task', 'bug', 'testcase', 'testtask', 'feedback', 'user', 'ticket');
-$config->admin->menuModuleGroup['feature']['custom|required'] = array('bug', 'doc', 'product', 'story', 'productplan', 'release', 'task', 'testcase', 'testsuite', 'testtask', 'testreport', 'caselib', 'doc', 'feedback', 'user', 'execution');
+$config->admin->menuModuleGroup['feature']['custom|set']      = array('todo', 'block', 'epic', 'requirement', 'story', 'task', 'bug', 'testcase', 'testtask', 'feedback', 'user', 'ticket');
+$config->admin->menuModuleGroup['feature']['custom|required'] = array('bug', 'doc', 'product', 'epic', 'requirement', 'story', 'productplan', 'release', 'task', 'testcase', 'testsuite', 'testtask', 'testreport', 'caselib', 'doc', 'feedback', 'user', 'execution');
 $config->admin->menuModuleGroup['template']['custom|set']     = array('baseline');
 if($config->vision == 'lite')
 {
@@ -90,7 +90,7 @@ $config->admin->helpURL['platform']  = 'https://www.zentao.net/book/devops/1072.
 $config->admin->helpURL['ai']        = 'https://www.zentao.net/book/zentaopms/1097.html';
 
 $config->admin->navsGroup['feature']['my']        = ',todo,block,';
-$config->admin->navsGroup['feature']['product']   = ',product,story,productplan,release,';
+$config->admin->navsGroup['feature']['product']   = ',product,epic,requirement,story,productplan,release,';
 $config->admin->navsGroup['feature']['project']   = ',project,';
 $config->admin->navsGroup['feature']['execution'] = ',execution,task,';
 $config->admin->navsGroup['feature']['project']   = ',project,story,';
diff --git a/module/admin/control.php b/module/admin/control.php
index 862bc40c53..ff319be4ac 100755
--- a/module/admin/control.php
+++ b/module/admin/control.php
@@ -262,9 +262,14 @@ class admin extends control
                 }
             }
 
+            $enableER = $this->config->edition == 'ipd' ? 1 : zget($data->module, 'productER', 0);
+            $URAndSR  = $this->config->edition == 'ipd' ? 1 : zget($data->module, 'productUR', 0);
+            if($enableER && !$URAndSR) $this->send(array('result' => 'fail', 'message' => $this->lang->admin->notice->openUR));
+
             $this->setting->setItem('system.common.closedFeatures', implode(',', $closedFeatures));
             $this->setting->setItem('system.common.global.scoreStatus', zget($data->module, 'myScore', 0));
-            $this->setting->setItem('system.custom.URAndSR', $this->config->edition == 'ipd' ? 1 : zget($data->module, 'productUR', 0));
+            $this->setting->setItem('system.custom.enableER', $enableER);
+            $this->setting->setItem('system.custom.URAndSR',  $URAndSR);
             $this->setting->setItem('system.common.setCode', in_array('otherSetCode', $closedFeatures) ? 0 : 1);
             $this->loadModel('custom')->processMeasrecordCron();
             $this->send(array('result' => 'success', 'message' => $this->lang->saveSuccess, 'callback' => '$.apps.updateAppsMenu(true);loadCurrentPage();'));
diff --git a/module/admin/lang/de.php b/module/admin/lang/de.php
index 4f18048322..7a020634d4 100755
--- a/module/admin/lang/de.php
+++ b/module/admin/lang/de.php
@@ -72,6 +72,7 @@ $lang->admin->notice = new stdclass();
 $lang->admin->notice->register = "Hinweiß: Sie haben sich nicht bei ZenTao (www.zentao.pm) registriert. %s um die aktuellen Updates und News zu erhalten.";
 $lang->admin->notice->ignore   = "Ignorieren";
 $lang->admin->notice->int      = "『%s』sollte eine positive Zahl sein.";
+$lang->admin->notice->openUR   = "Please enable {$lang->URCommon} first before you can use {$lang->ERCommon}.";
 
 $lang->admin->registerNotice = new stdclass();
 $lang->admin->registerNotice->common     = 'Register Account';
@@ -114,6 +115,7 @@ $lang->admin->setModule->auditplan      = 'QA';
 $lang->admin->setModule->meeting        = 'Meeting';
 $lang->admin->setModule->roadmap        = 'Roadmap';
 $lang->admin->setModule->track          = 'Track';
+$lang->admin->setModule->ER             = $lang->ERCommon;
 $lang->admin->setModule->UR             = $lang->URCommon;
 $lang->admin->setModule->researchplan   = 'Researchplan';
 $lang->admin->setModule->gapanalysis    = 'Gapanalysis';
diff --git a/module/admin/lang/en.php b/module/admin/lang/en.php
index 7ad1bf9db6..ab94a8601c 100755
--- a/module/admin/lang/en.php
+++ b/module/admin/lang/en.php
@@ -72,6 +72,7 @@ $lang->admin->notice = new stdclass();
 $lang->admin->notice->register = "Note: You haven't registered in ZenTao official website(www.zentao.pm). %s then get the Latest ZenTao Upgrades and News.";
 $lang->admin->notice->ignore   = "Ignore";
 $lang->admin->notice->int      = "『%s』should be a positive integer.";
+$lang->admin->notice->openUR   = "Please enable {$lang->URCommon} first before you can use {$lang->ERCommon}.";
 
 $lang->admin->registerNotice = new stdclass();
 $lang->admin->registerNotice->common     = 'Register Account';
@@ -114,6 +115,7 @@ $lang->admin->setModule->auditplan      = 'QA';
 $lang->admin->setModule->meeting        = 'Meeting';
 $lang->admin->setModule->roadmap        = 'Roadmap';
 $lang->admin->setModule->track          = 'Track';
+$lang->admin->setModule->ER             = $lang->ERCommon;
 $lang->admin->setModule->UR             = $lang->URCommon;
 $lang->admin->setModule->researchplan   = 'Researchplan';
 $lang->admin->setModule->gapanalysis    = 'Gapanalysis';
diff --git a/module/admin/lang/fr.php b/module/admin/lang/fr.php
index 8699014efd..66d0c726f4 100755
--- a/module/admin/lang/fr.php
+++ b/module/admin/lang/fr.php
@@ -72,6 +72,7 @@ $lang->admin->notice = new stdclass();
 $lang->admin->notice->register = "Note: Vous n'êtes pas enregistré sur le site officiel de ZenTao (www.zentao.pm). %s vous pourrez ensuite obtenir les dernières Mises à Jour de ZenTao et des informations.";
 $lang->admin->notice->ignore   = "Ignorer";
 $lang->admin->notice->int      = "『 %s 』 devrait être un entier positif.";
+$lang->admin->notice->openUR   = "Please enable {$lang->URCommon} first before you can use {$lang->ERCommon}.";
 
 $lang->admin->registerNotice = new stdclass();
 $lang->admin->registerNotice->common     = 'Register Account';
@@ -114,6 +115,7 @@ $lang->admin->setModule->auditplan      = 'QA';
 $lang->admin->setModule->meeting        = 'Meeting';
 $lang->admin->setModule->roadmap        = 'Roadmap';
 $lang->admin->setModule->track          = 'Track';
+$lang->admin->setModule->ER             = $lang->ERCommon;
 $lang->admin->setModule->UR             = $lang->URCommon;
 $lang->admin->setModule->researchplan   = 'Researchplan';
 $lang->admin->setModule->gapanalysis    = 'Gapanalysis';
diff --git a/module/admin/lang/menu.php b/module/admin/lang/menu.php
index 168ef3781c..7934eb42e6 100644
--- a/module/admin/lang/menu.php
+++ b/module/admin/lang/menu.php
@@ -116,6 +116,8 @@ $lang->admin->menuList->feature['tabMenu']['my']['todo']  = array('link' => "{$l
 $lang->admin->menuList->feature['tabMenu']['my']['block'] = array('link' => "{$lang->block->common}|custom|set|module=block&field=closed", 'exclude' => 'custom-set');
 
 $lang->admin->menuList->feature['tabMenu']['product']['product']     = array('link' => "{$lang->productCommon}|custom|required|module=product", 'links' => array("custom|browsestoryconcept|", 'custom|product|'), 'alias' => 'browsestoryconcept,product', 'exclude' => 'custom-required');
+if($config->enableER) $lang->admin->menuList->feature['tabMenu']['product']['epic']        = array('link' => "{$lang->epic->common}|custom|required|module=epic", 'links' => array("custom|set|module=epic&field=categoryList"), 'exclude' => 'custom-required,custom-set');
+if($config->URAndSR)  $lang->admin->menuList->feature['tabMenu']['product']['requirement'] = array('link' => "{$lang->URCommon}|custom|required|module=requirement", 'links' => array("custom|set|module=requirement&field=categoryList"), 'exclude' => 'custom-required,custom-set');
 $lang->admin->menuList->feature['tabMenu']['product']['story']       = array('link' => "{$lang->SRCommon}|custom|required|module=story", 'links' => array("custom|set|module=story&field=categoryList"), 'exclude' => 'custom-required,custom-set');
 $lang->admin->menuList->feature['tabMenu']['product']['productplan'] = array('link' => "{$lang->productplan->shortCommon}|custom|required|module=productplan", 'exclude' => 'custom-required');
 $lang->admin->menuList->feature['tabMenu']['product']['release']     = array('link' => "{$lang->release->common}|custom|required|module=release", 'exclude' => 'custom-required');
@@ -133,9 +135,11 @@ $lang->admin->menuList->feature['tabMenu']['qa']['caselib']    = array('link' =>
 $lang->admin->menuList->feature['tabMenu']['menuOrder']['my']['5']         = 'todo';
 $lang->admin->menuList->feature['tabMenu']['menuOrder']['my']['10']        = 'block';
 $lang->admin->menuList->feature['tabMenu']['menuOrder']['product']['5']    = 'product';
-$lang->admin->menuList->feature['tabMenu']['menuOrder']['product']['10']   = 'story';
-$lang->admin->menuList->feature['tabMenu']['menuOrder']['product']['15']   = 'productplan';
-$lang->admin->menuList->feature['tabMenu']['menuOrder']['product']['20']   = 'release';
+if($config->enableER) $lang->admin->menuList->feature['tabMenu']['menuOrder']['product']['10'] = 'epic';
+if($config->URAndSR)  $lang->admin->menuList->feature['tabMenu']['menuOrder']['product']['15'] = 'requirement';
+$lang->admin->menuList->feature['tabMenu']['menuOrder']['product']['20']   = 'story';
+$lang->admin->menuList->feature['tabMenu']['menuOrder']['product']['25']   = 'productplan';
+$lang->admin->menuList->feature['tabMenu']['menuOrder']['product']['30']   = 'release';
 $lang->admin->menuList->feature['tabMenu']['menuOrder']['execution']['5']  = 'execution';
 $lang->admin->menuList->feature['tabMenu']['menuOrder']['execution']['10'] = 'task';
 $lang->admin->menuList->feature['tabMenu']['menuOrder']['qa']['5']         = 'bug';
diff --git a/module/admin/lang/zh-cn.php b/module/admin/lang/zh-cn.php
index a140ac2274..68efcf920e 100755
--- a/module/admin/lang/zh-cn.php
+++ b/module/admin/lang/zh-cn.php
@@ -72,6 +72,7 @@ $lang->admin->notice = new stdclass();
 $lang->admin->notice->register = "可%s禅道社区 www.zentao.net，及时获得禅道最新信息。";
 $lang->admin->notice->ignore   = "不再提示";
 $lang->admin->notice->int      = "『%s』应当是正整数。";
+$lang->admin->notice->openUR   = "请先开启{$lang->URCommon}，才能使用{$lang->ERCommon}。";
 
 $lang->admin->registerNotice = new stdclass();
 $lang->admin->registerNotice->common     = '注册新帐号';
@@ -115,6 +116,7 @@ $lang->admin->setModule->meeting        = '会议';
 $lang->admin->setModule->roadmap        = '路线图';
 $lang->admin->setModule->track          = '矩阵';
 $lang->admin->setModule->UR             = $lang->URCommon;
+$lang->admin->setModule->ER             = $lang->ERCommon;
 $lang->admin->setModule->researchplan   = '调研';
 $lang->admin->setModule->gapanalysis    = '培训';
 $lang->admin->setModule->storylib       = '需求库';
diff --git a/module/bi/config/metrics.php b/module/bi/config/metrics.php
index 067b9456e0..c0994649a8 100644
--- a/module/bi/config/metrics.php
+++ b/module/bi/config/metrics.php
@@ -4144,3 +4144,101 @@ $config->bi->builtin->metrics[] = array
     'desc'       => '按项目统计的已完成用户需求数是指状态为已关闭且关闭原因为已完成的用户需求的数量。反映了项目团队在满足用户期望和需求方面的已经实现的任务和计划。已完成用户需求数量的增加表示项目团队已经成功完成了一定数量的用户需求工作，并取得了一定的成果',
     'definition' => "项目中用户需求的个数求和\n状态为已关闭\n关闭原因为已完成\n过滤已删除的用户需求\n过滤已删除的项目"
 );
+
+$config->bi->builtin->metrics[] = array
+(
+    'name'       => '按人员统计的被指派的业务需求数',
+    'alias'      => '被指派的业务需求数',
+    'code'       => 'count_of_assigned_epic_in_user',
+    'purpose'    => 'scale',
+    'scope'      => 'user',
+    'object'     => 'epic',
+    'unit'       => 'count',
+    'dateType'   => 'nodate',
+    'desc'       => '按人员统计的被指派业务需求数表示每个人待处理的业务需求数量之和。反映了每个人员需要处理的业务需求数量的规模。该数值越大，说明需要投入越多的时间处理业务需求。',
+    'definition' => "所有业务需求个数求和\n指派给为某人\n过滤已删除的业务需求\n过滤已删除产品的业务需求"
+);
+
+$config->bi->builtin->metrics[] = array
+(
+    'name'       => '按人员统计的被指派的用户需求数',
+    'alias'      => '被指派的用户需求数',
+    'code'       => 'count_of_assigned_requirement_in_user',
+    'purpose'    => 'scale',
+    'scope'      => 'user',
+    'object'     => 'requirement',
+    'unit'       => 'count',
+    'dateType'   => 'nodate',
+    'desc'       => '按人员统计的被指派用户需求数表示每个人待处理的用户需求数量之和。反映了每个人员需要处理的用户需求数量的规模。该数值越大，说明需要投入越多的时间处理用户需求。',
+    'definition' => "所有用户需求个数求和\n指派给为某人\n过滤已删除的用户需求\n过滤已删除产品的用户需求"
+);
+
+$config->bi->builtin->metrics[] = array
+(
+    'name'       => '按项目统计的业务需求总数',
+    'alias'      => '业务需求总数',
+    'code'       => 'count_of_epic_in_project',
+    'purpose'    => 'scale',
+    'scope'      => 'project',
+    'object'     => 'epic',
+    'unit'       => 'count',
+    'dateType'   => 'nodate',
+    'desc'       => '按项目统计的业务需求总数是指项目中创建或关联的所有业务需求的数量，反映了项目的规模和复杂度，提供了关于业务需求管理、进度控制、资源规划、风险评估和质量控制的有用信息',
+    'definition' => "项目中业务需求个数求和\r\n过滤已删除的业务需求\r\n过滤已删除的项目"
+);
+
+$config->bi->builtin->metrics[] = array
+(
+    'name'       => '按项目统计的已关闭业务需求数',
+    'alias'      => '已关闭业务需求数',
+    'code'       => 'count_of_closed_epic_in_project',
+    'purpose'    => 'scale',
+    'scope'      => 'project',
+    'object'     => 'epic',
+    'unit'       => 'count',
+    'dateType'   => 'nodate',
+    'desc'       => '按项目统计的已关闭业务需求数是指项目中状态为已关闭的业务需求的数量，反映了项目团队在满足组织业务目标和需求方面的已经实现的任务和计划。已关闭业务需求数量的增加表示项目团队已经成功完成了一定数量的业务需求工作，并取得了一定的成果。',
+    'definition' => "项目中业务需求个数求和\r\n过滤已删除的业务需求\r\n状态为已关闭\r\n过滤已删除的项目"
+);
+
+$config->bi->builtin->metrics[] = array
+(
+    'name'       => '按项目统计的未关闭业务需求数',
+    'alias'      => '未关闭业务需求数',
+    'code'       => 'count_of_unclosed_epic_in_project',
+    'purpose'    => 'scale',
+    'scope'      => 'project',
+    'object'     => 'epic',
+    'unit'       => 'count',
+    'dateType'   => 'nodate',
+    'desc'       => '按项目统计的未关闭业务需求数是指项目中尚未满足或处理的业务需求的数量，反映了项目团队在满足组织业务目标和需求方面的进行中任务和计划。未关闭业务需求数量的增加表示项目团队尚未完成的业务需求工作较多，需要进一步跟进和处理，以确保项目能够满足组织的业务目标',
+    'definition' => "复用：\r\n按项目统计的业务需求总数\r\n按项目统计的已关闭业务需求数\r\n公式：\r\n按项目统计的未关闭业务需求数=按项目统计的业务需求总数-按项目统计的已关闭业务需求数"
+);
+
+$config->bi->builtin->metrics[] = array
+(
+    'name'       => '按项目统计的已完成业务需求数',
+    'alias'      => '已完成业务需求数',
+    'code'       => 'count_of_finished_epic_in_project',
+    'purpose'    => 'scale',
+    'scope'      => 'project',
+    'object'     => 'epic',
+    'unit'       => 'count',
+    'dateType'   => 'nodate',
+    'desc'       => '按项目统计的已完成业务需求数是指状态为已关闭且关闭原因为已完成的业务需求的数量。反映了项目团队在满足组织业务目标和需求方面的已经实现的任务和计划。已完成业务需求数量的增加表示项目团队已经成功完成了一定数量的业务需求工作，并取得了一定的成果',
+    'definition' => "项目中业务需求的个数求和\r\n状态为已关闭\r\n关闭原因为已完成\r\n过滤已删除的业务需求\r\n过滤已删除的项目"
+);
+
+$config->bi->builtin->metrics[] = array
+(
+    'name'       => '按人员统计的被指派的QA数',
+    'alias'      => '被指派的QA数',
+    'code'       => 'count_of_assigned_qa_in_user',
+    'purpose'    => 'scale',
+    'scope'      => 'user',
+    'object'     => 'qa',
+    'unit'       => 'count',
+    'dateType'   => 'nodate',
+    'desc'       => '按人员统计的被指派的QA数表示每个人被指派的质量保证问题之和。反映了每个人员需要处理的质量保证问题的规模。该数值越大，说明需要处理的质量保证问题越多',
+    'definition' => "所有待处理的QA个数求和（包含：待处理质量保证计划、待处理不符合项）\n指派给为某人\n质量保证计划状态为待检查、不符合项状态为待解决\n过滤已删除的质量保证计划和不符合项\n过滤已删除项目的质量保证计划和不符合项"
+);
diff --git a/module/block/lang/de.php b/module/block/lang/de.php
index d076f75c59..3954937fa9 100644
--- a/module/block/lang/de.php
+++ b/module/block/lang/de.php
@@ -543,7 +543,8 @@ $lang->block->welcome->assignList['task'] = 'Task';
 if($config->vision != 'or') $lang->block->welcome->assignList['bug']   = 'Bug';
 if($config->vision != 'or') $lang->block->welcome->assignList['story'] = 'SRStroy';
 $lang->block->welcome->assignList['testcase'] = 'TestCase';
-if($config->vision != 'or') $lang->block->welcome->assignList['requirement'] = 'URStroy';
+if($config->URAndSR && $config->vision != 'or')  $lang->block->welcome->assignList['requirement'] = "{$lang->URCommon}";
+if($config->enableER && $config->vision != 'or') $lang->block->welcome->assignList['epic']        = "{$lang->ERCommon}";
 
 $lang->block->customModeTip = new stdClass();
 $lang->block->customModeTip->common = 'There are 2 running modes of ZenTao:  Light Mode and ALM Mode.';
diff --git a/module/block/lang/en.php b/module/block/lang/en.php
index 8d7e3f2466..eb5c2552d6 100644
--- a/module/block/lang/en.php
+++ b/module/block/lang/en.php
@@ -543,7 +543,8 @@ $lang->block->welcome->assignList['task'] = 'Task';
 if($config->vision != 'or') $lang->block->welcome->assignList['bug']   = 'Bug';
 if($config->vision != 'or') $lang->block->welcome->assignList['story'] = 'SRStroy';
 $lang->block->welcome->assignList['testcase'] = 'TestCase';
-if($config->vision != 'or') $lang->block->welcome->assignList['requirement'] = 'URStroy';
+if($config->URAndSR && $config->vision != 'or')  $lang->block->welcome->assignList['requirement'] = "{$lang->URCommon}";
+if($config->enableER && $config->vision != 'or') $lang->block->welcome->assignList['epic']        = "{$lang->ERCommon}";
 
 $lang->block->customModeTip = new stdClass();
 $lang->block->customModeTip->common = 'There are 2 running modes of ZenTao:  Light Mode and ALM Mode.';
diff --git a/module/block/lang/fr.php b/module/block/lang/fr.php
index 4fdb9a6bc5..8866efd2b7 100644
--- a/module/block/lang/fr.php
+++ b/module/block/lang/fr.php
@@ -543,7 +543,8 @@ $lang->block->welcome->assignList['task'] = 'Task';
 if($config->vision != 'or') $lang->block->welcome->assignList['bug']   = 'Bug';
 if($config->vision != 'or') $lang->block->welcome->assignList['story'] = 'SRStroy';
 $lang->block->welcome->assignList['testcase'] = 'TestCase';
-if($config->vision != 'or') $lang->block->welcome->assignList['requirement'] = 'URStroy';
+if($config->URAndSR && $config->vision != 'or')  $lang->block->welcome->assignList['requirement'] = "{$lang->URCommon}";
+if($config->enableER && $config->vision != 'or') $lang->block->welcome->assignList['epic']        = "{$lang->ERCommon}";
 
 $lang->block->customModeTip = new stdClass();
 $lang->block->customModeTip->common = 'There are 2 running modes of ZenTao:  Light Mode and ALM Mode.';
diff --git a/module/block/lang/zh-cn.php b/module/block/lang/zh-cn.php
index 9e802e52a2..557127a852 100644
--- a/module/block/lang/zh-cn.php
+++ b/module/block/lang/zh-cn.php
@@ -541,9 +541,10 @@ $lang->block->welcome->reviewList['reviewByMe'] = '待我评审数';
 $lang->block->welcome->assignList = array();
 $lang->block->welcome->assignList['task'] = '任务数';
 if($config->vision != 'or') $lang->block->welcome->assignList['bug']   = 'BUG数';
-if($config->vision != 'or') $lang->block->welcome->assignList['story'] = $lang->SRCommon . '数';
+if($config->vision != 'or') $lang->block->welcome->assignList['story'] = "{$lang->SRCommon}数";
 $lang->block->welcome->assignList['testcase'] = '用例数';
-if($config->vision != 'or') $lang->block->welcome->assignList['requirement'] = $lang->URCommon . '数';
+if($config->URAndSR && $config->vision != 'or')  $lang->block->welcome->assignList['requirement'] = "{$lang->URCommon}数";
+if($config->enableER && $config->vision != 'or') $lang->block->welcome->assignList['epic']        = "{$lang->ERCommon}数";
 
 $lang->block->customModeTip = new stdClass();
 $lang->block->customModeTip->common = '禅道运行模式分为【轻量级管理模式】和【全生命周期管理模式】。';
@@ -571,7 +572,7 @@ $lang->block->projectoverview->thisYear      = '今年完成';
 $lang->block->projectoverview->lastThreeYear = '近三年完成的项目数量分布';
 
 $lang->block->projectstatistic = new stdclass();
-$lang->block->projectstatistic->story            = $lang->SRCommon;
+$lang->block->projectstatistic->story            = '需求';
 $lang->block->projectstatistic->cost             = '投入';
 $lang->block->projectstatistic->task             = '任务';
 $lang->block->projectstatistic->bug              = 'Bug';
diff --git a/module/bug/ui/view.html.php b/module/bug/ui/view.html.php
index 51c0dbcea3..40f960834d 100644
--- a/module/bug/ui/view.html.php
+++ b/module/bug/ui/view.html.php
@@ -86,6 +86,12 @@ if(!$bug->deleted)
             }
             $actions[$key] = $action;
         }
+        if($action['icon'] == 'edit' && isInModal())
+        {
+            $action['data-load'] = 'modal';
+            $action['data-size'] = 'lg';
+            $actions[$key] = $action;
+        }
     }
 }
 
diff --git a/module/bug/zen.php b/module/bug/zen.php
index f9aba39ce2..2cdb63270b 100644
--- a/module/bug/zen.php
+++ b/module/bug/zen.php
@@ -1021,7 +1021,7 @@ class bugZen extends bug
 
         if($executionID)
         {
-            $stories = $this->story->getExecutionStoryPairs($executionID, $productID, $branch);
+            $stories = $this->story->getExecutionStoryPairs($executionID, $productID, $branch, '', 'full', 'all', 'story', false);
         }
         else
         {
@@ -1033,6 +1033,8 @@ class bugZen extends bug
             $bugStory ? $stories[$bug->storyID] = $bugStory->title : $bug->storyID = 0;
         }
 
+        $stories = $this->story->addGradeLabel($stories);
+
         return $this->updateBug($bug, array('stories' => $stories));
     }
 
@@ -1237,13 +1239,22 @@ class bugZen extends bug
 
         $this->config->moreLinks['case'] = inlink('ajaxGetProductCases', "bugID={$bug->id}");
 
+        if($bug->execution)
+        {
+            $stories = $this->story->getExecutionStoryPairs($bug->execution, 0, 'all', '', 'full', 'all', 'story', false);
+        }
+        else
+        {
+            $stories = $this->story->getProductStoryPairs($bug->product, $bug->branch, 0, 'active,closed', 'id_desc', 0, 'full', 'story', false);
+        }
+
         $resolvedBuildPairs = $this->build->getBuildPairs(array($bug->product), $bug->branch, 'noempty');
         $this->view->resolvedBuildPairs = $resolvedBuildPairs;
         $this->view->resolvedBuilds     = $this->build->addReleaseLabelForBuilds($bug->product, $resolvedBuildPairs);
 
         $this->view->openedBuilds   = $openedBuilds;
         $this->view->plans          = $this->loadModel('productplan')->getPairs($bug->product, $bug->branch, '', true);
-        $this->view->stories        = $bug->execution ? $this->story->getExecutionStoryPairs($bug->execution) : $this->story->getProductStoryPairs($bug->product, $bug->branch, 0, 'all', 'id_desc', 0, 'full', 'story', false);
+        $this->view->stories        = $this->story->addGradeLabel($stories);
         $this->view->tasks          = $this->task->getExecutionTaskPairs($bug->execution);
         $this->view->testtasks      = $this->loadModel('testtask')->getPairs($bug->product, $bug->execution, $bug->testtask);
         $this->view->cases          = $cases;
diff --git a/module/build/control.php b/module/build/control.php
index abb6a2ffa1..f7164e3ef9 100644
--- a/module/build/control.php
+++ b/module/build/control.php
@@ -185,6 +185,8 @@ class build extends control
         $this->view->actions       = $this->loadModel('action')->getList('build', $buildID);
         $this->view->link          = $link;
         $this->view->orderBy       = $orderBy;
+        $this->view->grades        = $this->loadModel('story')->getGradePairs('story', 'all');
+        $this->view->showGrade     = $this->config->edition == 'ipd';
         $this->view->execution     = $this->loadModel('execution')->getByID((int)$build->execution);
         $this->view->childBuilds   = empty($build->builds) ? array() : $this->build->getByList(explode(',', $build->builds));
         $this->view->productID     = $build->product;
@@ -436,13 +438,14 @@ class build extends control
 
         $this->loadModel('story');
         $executionID = $build->execution ? (int)$build->execution : (int)$build->project;
+        $excludeStoryIdList = $this->buildZen->getExcludeStoryIdList($build);
         if($browseType == 'bySearch')
         {
-            $allStories = $this->story->getBySearch($build->product, $build->branch, (int)$param, $orderBy, $executionID, 'story', $build->allStories, '', $pager);
+            $allStories = $this->story->getBySearch($build->product, $build->branch, (int)$param, $orderBy, $executionID, 'story', $excludeStoryIdList, '', $pager);
         }
         else
         {
-            $allStories = $this->story->getExecutionStories($executionID, $build->product, $orderBy, 'byBranch', $build->branch, 'story', $build->allStories, $pager);
+            $allStories = $this->story->getExecutionStories($executionID, $build->product, $orderBy, 'byBranch', $build->branch, 'story', $excludeStoryIdList, $pager);
         }
 
         $checkedRows = array();
@@ -459,6 +462,8 @@ class build extends control
         $this->view->browseType   = $browseType;
         $this->view->param        = $param;
         $this->view->pager        = $pager;
+        $this->view->grades       = $this->story->getGradePairs('story', 'all');
+        $this->view->showGrade    = $this->config->edition == 'ipd';
         $this->view->orderBy      = $orderBy;
         $this->display();
     }
diff --git a/module/build/js/linkstory.ui.js b/module/build/js/linkstory.ui.js
index be1a0f0466..92ab722fc3 100644
--- a/module/build/js/linkstory.ui.js
+++ b/module/build/js/linkstory.ui.js
@@ -4,7 +4,8 @@ window.renderStoryCell = function(result, info)
     if(info.col.name == 'title' && result)
     {
         let html = '';
-        if(story.parent > 0) html += "<span class='label gray-pale rounded-xl'>" + childrenAB + "</span>";
+        let gradeLabel = (showGrade || story.grade >= 2) ? grades[story.grade] : '';
+        if(gradeLabel) html += "<span class='label gray-pale rounded-xl'>" + gradeLabel + "</span>";
         if(html) result.unshift({html});
     }
 
diff --git a/module/build/js/view.ui.js b/module/build/js/view.ui.js
index e9e0b31cb0..4dd2a1f45c 100644
--- a/module/build/js/view.ui.js
+++ b/module/build/js/view.ui.js
@@ -77,3 +77,17 @@ $(function()
 {
     if(initLink == 'true') window.showLink(type, linkParams);
 });
+
+window.renderStoryCell = function(result, info)
+{
+    const story = info.row.data;
+    if(info.col.name == 'title' && result)
+    {
+        let html = '';
+        let gradeLabel = (showGrade || story.grade >= 2) ? grades[story.grade] : '';
+        if(gradeLabel) html += "<span class='label gray-pale rounded-xl'>" + gradeLabel + "</span>";
+        if(html) result.unshift({html});
+    }
+
+    return result;
+};
diff --git a/module/build/ui/linkstory.html.php b/module/build/ui/linkstory.html.php
index da2ec298c5..1d38ccb2a2 100644
--- a/module/build/ui/linkstory.html.php
+++ b/module/build/ui/linkstory.html.php
@@ -27,6 +27,8 @@ foreach($allStories as $story)
 }
 
 jsVar('childrenAB', $lang->story->childrenAB);
+jsVar('grades', $grades);
+jsVar('showGrade', $showGrade);
 
 searchForm
 (
diff --git a/module/build/ui/view.html.php b/module/build/ui/view.html.php
index 38ac5bdd44..e77deaef3b 100644
--- a/module/build/ui/view.html.php
+++ b/module/build/ui/view.html.php
@@ -81,6 +81,8 @@ jsVar('confirmDelete',  $lang->build->confirmDelete);
 jsVar('currentAccount', $app->user->account);
 jsVar('buildProduct',   $build->product);
 jsVar('buildModule',    $buildModule);
+jsVar('grades',         $grades);
+jsVar('showGrade',      $showGrade);
 
 /* Story's batch btn. */
 $canBatchUnlinkStory = $canBeChanged && common::hasPriv($buildModule, 'batchUnlinkStory');
@@ -184,6 +186,7 @@ detailBody
                     set::canRowCheckable(jsRaw("function(rowID){return this.getRowInfo(rowID).data.noCheckBox ? 'disabled' : true;}")),
                     set::sortLink(createLink($buildModule, 'view', "buildID={$build->id}&type=story&link={$link}&param={$param}&orderBy={name}_{sortType}")),
                     set::orderBy($orderBy),
+                    set::onRenderCell(jsRaw('window.renderStoryCell')),
                     set::extraHeight('+144'),
                     set::footToolbar($storyFootToolbar),
                     set::footPager(usePager('storyPager', '', array(
diff --git a/module/build/zen.php b/module/build/zen.php
index 9002cd5d5e..ea8a8c06ad 100644
--- a/module/build/zen.php
+++ b/module/build/zen.php
@@ -228,6 +228,31 @@ class buildZen extends build
         $this->view->objectID   = $objectID;
     }
 
+    /**
+     * 获取版本不可关联的需求ID列表。
+     * Get the story ID list that cannot be linked to the build.
+     *
+     * @param  object    $build
+     * @access protected
+     * @return array
+     */
+    public function getExcludeStoryIdList(object $build)
+    {
+        $parentIdList = $this->dao->select('id')->from(TABLE_STORY)
+            ->where('product')->eq($build->product)
+            ->andWhere('type')->eq('story')
+            ->andWhere('isParent')->eq('1')
+            ->fetchPairs();
+
+        foreach(explode(',', $build->allStories) as $storyID)
+        {
+            if(!$storyID) continue;
+            if(!isset($parentIdList[$storyID])) $parentIdList[$storyID] = $storyID;
+        }
+
+        return $parentIdList;
+    }
+
     /**
      * 生成关联需求的搜索表单数据。
      * Generate the search form data for the build view page.
diff --git a/module/common/lang/common.php b/module/common/lang/common.php
index af91bf1a4d..c13b4367bf 100644
--- a/module/common/lang/common.php
+++ b/module/common/lang/common.php
@@ -14,6 +14,7 @@ $lang->scrum       = new stdclass();
 $lang->waterfall   = new stdclass();
 $lang->execution   = new stdclass();
 $lang->kanban      = new stdclass();
+$lang->epic        = new stdclass();
 $lang->story       = new stdclass();
 $lang->requirement = new stdclass();
 $lang->release     = new stdclass();
diff --git a/module/common/lang/de.php b/module/common/lang/de.php
index f0f8cbf21b..3e1abfc940 100644
--- a/module/common/lang/de.php
+++ b/module/common/lang/de.php
@@ -224,7 +224,8 @@ $lang->metric->common       = 'Metric';
 $lang->report->common       = 'Report';
 $lang->system->common       = 'System';
 $lang->admin->common        = 'Admin';
-$lang->story->common        = 'Story';
+$lang->epic->common         = $lang->ERCommon;
+$lang->story->common        = $lang->SRCommon;
 $lang->task->common         = 'Task';
 $lang->bug->common          = 'Bug';
 $lang->testcase->common     = 'Testcase';
@@ -437,7 +438,8 @@ $lang->admin->cache       = 'Cache';
 
 $lang->convert->importJira = 'Import Jira';
 
-$lang->storyConcept = 'Story Concpet';
+$lang->storyConcept  = 'Story Concpet';
+$lang->defaultERName = 'Epic';
 
 $lang->searchTips = '';
 $lang->searchAB   = 'Search';
@@ -445,7 +447,9 @@ $lang->searchAB   = 'Search';
 /* Object list in search form. */
 $lang->searchObjects['all']         = 'All';
 $lang->searchObjects['bug']         = 'Bug';
-$lang->searchObjects['story']       = 'Story';
+$lang->searchObjects['story']       = $lang->SRCommon;
+if($config->enableER) $lang->searchObjects['epic']        = $lang->ERCommon;
+if($config->URAndSR)  $lang->searchObjects['requirement'] = $lang->URCommon;
 $lang->searchObjects['task']        = 'Aufgaben';
 $lang->searchObjects['testcase']    = 'Fall';
 $lang->searchObjects['product']     = $lang->productCommon;
diff --git a/module/common/lang/en.php b/module/common/lang/en.php
index 176cce7eb7..21bdcb07e2 100644
--- a/module/common/lang/en.php
+++ b/module/common/lang/en.php
@@ -224,7 +224,8 @@ $lang->metric->common       = 'Metric';
 $lang->report->common       = 'Report';
 $lang->system->common       = 'System';
 $lang->admin->common        = 'Admin';
-$lang->story->common        = 'Story';
+$lang->epic->common         = $lang->ERCommon;
+$lang->story->common        = $lang->SRCommon;
 $lang->task->common         = 'Task';
 $lang->bug->common          = 'Bug';
 $lang->testcase->common     = 'Testcase';
@@ -437,7 +438,8 @@ $lang->admin->cache       = 'Cache';
 
 $lang->convert->importJira = 'Import Jira';
 
-$lang->storyConcept = 'Story Concpet';
+$lang->storyConcept  = 'Story Concpet';
+$lang->defaultERName = 'Epic';
 
 $lang->searchTips = '';
 $lang->searchAB   = 'Search';
@@ -445,7 +447,9 @@ $lang->searchAB   = 'Search';
 /* Object list in search form. */
 $lang->searchObjects['all']         = 'All';
 $lang->searchObjects['bug']         = 'Bug';
-$lang->searchObjects['story']       = 'Story';
+$lang->searchObjects['story']       = $lang->SRCommon;
+if($config->enableER) $lang->searchObjects['epic']        = $lang->ERCommon;
+if($config->URAndSR)  $lang->searchObjects['requirement'] = $lang->URCommon;
 $lang->searchObjects['task']        = 'Task';
 $lang->searchObjects['testcase']    = 'Case';
 $lang->searchObjects['product']     = $lang->productCommon;
diff --git a/module/common/lang/fr.php b/module/common/lang/fr.php
index 6b66073cfc..87eb334194 100644
--- a/module/common/lang/fr.php
+++ b/module/common/lang/fr.php
@@ -224,7 +224,8 @@ $lang->metric->common       = 'Metric';
 $lang->report->common       = 'Report';
 $lang->system->common       = 'System';
 $lang->admin->common        = 'Admin';
-$lang->story->common        = 'Story';
+$lang->epic->common         = $lang->ERCommon;
+$lang->story->common        = $lang->SRCommon;
 $lang->task->common         = 'Task';
 $lang->bug->common          = 'Bug';
 $lang->testcase->common     = 'Testcase';
@@ -437,7 +438,8 @@ $lang->admin->cache       = 'Cache';
 
 $lang->convert->importJira = 'Import Jira';
 
-$lang->storyConcept = 'Story Concpet';
+$lang->storyConcept  = 'Story Concpet';
+$lang->defaultERName = 'Epic';
 
 $lang->searchTips = '';
 $lang->searchAB   = 'Search';
@@ -445,7 +447,9 @@ $lang->searchAB   = 'Search';
 /* Object list in search form. */
 $lang->searchObjects['all']         = 'All';
 $lang->searchObjects['bug']         = 'Bug';
-$lang->searchObjects['story']       = 'Story';
+$lang->searchObjects['story']       = $lang->SRCommon;
+if($config->enableER) $lang->searchObjects['epic']        = $lang->ERCommon;
+if($config->URAndSR)  $lang->searchObjects['requirement'] = $lang->URCommon;
 $lang->searchObjects['task']        = 'Tâche';
 $lang->searchObjects['testcase']    = 'CasTest';
 $lang->searchObjects['product']     = $lang->productCommon;
diff --git a/module/common/lang/menu.php b/module/common/lang/menu.php
index 831122f332..cf5501a8a5 100644
--- a/module/common/lang/menu.php
+++ b/module/common/lang/menu.php
@@ -112,6 +112,7 @@ $lang->my->menu->work['subMenu']              = new stdclass();
 $lang->my->menu->work['subMenu']->task        = array('link' => "{$lang->task->common}|my|work|mode=task", 'subModule' => 'task', 'alias' => 'task');
 $lang->my->menu->work['subMenu']->story       = array('link' => "$lang->SRCommon|my|work|mode=story", 'alias' => 'story');
 $lang->my->menu->work['subMenu']->requirement = array('link' => "$lang->URCommon|my|work|mode=requirement", 'alias' => 'requirement');
+$lang->my->menu->work['subMenu']->epic        = array('link' => "$lang->ERCommon|my|work|mode=epic", 'alias' => 'epic');
 $lang->my->menu->work['subMenu']->bug         = array('link' => "{$lang->bug->common}|my|work|mode=bug", 'subModule' => 'bug', 'alias' => 'bug');
 $lang->my->menu->work['subMenu']->testcase    = array('link' => "{$lang->testcase->common}|my|work|mode=testcase", 'subModule' => 'testtask,testcase', 'alias' => 'testcase');
 $lang->my->menu->work['subMenu']->testtask    = array('link' => "{$lang->testtask->common}|my|work|mode=testtask", 'alias' => 'testtask');
@@ -119,17 +120,20 @@ $lang->my->menu->work['subMenu']->testtask    = array('link' => "{$lang->testtas
 $lang->my->menu->work['menuOrder'][5]  = 'task';
 $lang->my->menu->work['menuOrder'][10] = 'story';
 $lang->my->menu->work['menuOrder'][15] = 'requirement';
+$lang->my->menu->work['menuOrder'][17] = 'epic';
 $lang->my->menu->work['menuOrder'][20] = 'bug';
 $lang->my->menu->work['menuOrder'][25] = 'testcase';
 $lang->my->menu->work['menuOrder'][30] = 'testtask';
 $lang->my->menu->work['menuOrder'][35] = 'audit';
 
-if(!$config->URAndSR) unset($lang->my->menu->work['subMenu']->requirement, $lang->my->menu->work['menuOrder'][10]);
+if(!$config->enableER) unset($lang->my->menu->work['subMenu']->epic, $lang->my->menu->work['menuOrder'][12]);
+if(!$config->URAndSR)  unset($lang->my->menu->work['subMenu']->requirement, $lang->my->menu->work['menuOrder'][15]);
 
 $lang->my->menu->contribute['subMenu']              = new stdclass();
 $lang->my->menu->contribute['subMenu']->task        = array('link' => "{$lang->task->common}|my|contribute|mode=task", 'alias' => 'task');
 $lang->my->menu->contribute['subMenu']->story       = array('link' => "$lang->SRCommon|my|contribute|mode=story", 'alias' => 'story');
 $lang->my->menu->contribute['subMenu']->requirement = array('link' => "$lang->URCommon|my|contribute|mode=requirement", 'alias' => 'requirement');
+$lang->my->menu->contribute['subMenu']->epic        = array('link' => "$lang->ERCommon|my|contribute|mode=epic", 'alias' => 'epic');
 $lang->my->menu->contribute['subMenu']->bug         = array('link' => "{$lang->bug->common}|my|contribute|mode=bug", 'alias' => 'bug');
 $lang->my->menu->contribute['subMenu']->testcase    = array('link' => "{$lang->testcase->shortCommon}|my|contribute|mode=testcase", 'alias' => 'testcase');
 $lang->my->menu->contribute['subMenu']->testtask    = array('link' => "{$lang->testtask->common}|my|contribute|mode=testtask", 'alias' => 'testtask');
@@ -139,13 +143,15 @@ $lang->my->menu->contribute['subMenu']->doc         = array('link' => "{$lang->d
 $lang->my->menu->contribute['menuOrder'][5]  = 'task';
 $lang->my->menu->contribute['menuOrder'][10] = 'story';
 $lang->my->menu->contribute['menuOrder'][15] = 'requirement';
+$lang->my->menu->contribute['menuOrder'][17] = 'epic';
 $lang->my->menu->contribute['menuOrder'][20] = 'bug';
 $lang->my->menu->contribute['menuOrder'][25] = 'testcase';
 $lang->my->menu->contribute['menuOrder'][30] = 'testtask';
 $lang->my->menu->contribute['menuOrder'][35] = 'audit';
 $lang->my->menu->contribute['menuOrder'][40] = 'doc';
 
-if(!$config->URAndSR) unset($lang->my->menu->contribute['subMenu']->requirement, $lang->my->menu->contribute['menuOrder'][10]);
+if(!$config->enableER) unset($lang->my->menu->contribute['subMenu']->epic, $lang->my->menu->contribute['menuOrder'][12]);
+if(!$config->URAndSR)  unset($lang->my->menu->contribute['subMenu']->requirement, $lang->my->menu->contribute['menuOrder'][15]);
 
 $lang->my->dividerMenu = ',work,dynamic,';
 
@@ -180,12 +186,13 @@ $lang->product->homeMenu->kanban = array('link' => "{$lang->product->kanban}|pro
 
 $lang->product->menu              = new stdclass();
 $lang->product->menu->dashboard   = array('link' => "{$lang->dashboard}|product|dashboard|productID=%s");
-$lang->product->menu->story       = array('link' => "$lang->SRCommon|product|browse|productID=%s", 'alias' => 'batchedit', 'subModule' => 'story', 'exclude' => (isset($_GET['storyType']) ? ($_GET['storyType'] == 'requirement' ? 'browse,story-report,story-create,story-batchcreate' : '') : '') . ',batchtotask');
+$lang->product->menu->epic        = array('link' => "{$lang->ERCommon}|product|browse|productID=%s&branch=&browseType=unclosed&param=0&storyType=epic", 'subModule' => 'story');
+$lang->product->menu->requirement = array('link' => "{$lang->URCommon}|product|browse|productID=%s&branch=&browseType=unclosed&param=0&storyType=requirement", 'alias' => 'batchedit', 'subModule' => 'story');
+$lang->product->menu->story       = array('link' => "{$lang->SRCommon}|product|browse|productID=%s", 'alias' => 'batchedit', 'subModule' => 'story', 'exclude' => (isset($_GET['storyType']) ? ($_GET['storyType'] == 'requirement' ? 'browse,story-report,story-create,story-batchcreate' : '') : '') . ',batchtotask');
 $lang->product->menu->plan        = array('link' => "{$lang->productplan->shortCommon}|productplan|browse|productID=%s", 'subModule' => 'productplan,bug');
 $lang->product->menu->project     = array('link' => "{$lang->projectCommon}|product|project|status=all&productID=%s");
 $lang->product->menu->release     = array('link' => "{$lang->release->common}|release|browse|productID=%s", 'subModule' => 'release');
 $lang->product->menu->roadmap     = array('link' => "{$lang->roadmap}|product|roadmap|productID=%s");
-$lang->product->menu->requirement = array('link' => "{$lang->URCommon}|product|browse|productID=%s&branch=&browseType=unclosed&param=0&storyType=requirement", 'alias' => 'batchedit', 'subModule' => 'story');
 $lang->product->menu->track       = array('link' => "{$lang->track}|product|track|productID=%s");
 $lang->product->menu->doc         = array('link' => "{$lang->doc->common}|doc|productSpace|objectID=%s", 'subModule' => 'doc,api');
 $lang->product->menu->dynamic     = array('link' => "{$lang->dynamic}|product|dynamic|productID=%s");
@@ -193,18 +200,19 @@ $lang->product->menu->settings    = array('link' => "{$lang->settings}|product|v
 
 /* Product menu order. */
 $lang->product->menuOrder[5]  = 'dashboard';
-$lang->product->menuOrder[10] = 'story';
-$lang->product->menuOrder[15] = 'plan';
-$lang->product->menuOrder[20] = 'project';
-$lang->product->menuOrder[25] = 'release';
-$lang->product->menuOrder[30] = 'roadmap';
-$lang->product->menuOrder[35] = 'requirement';
-$lang->product->menuOrder[40] = 'track';
-$lang->product->menuOrder[45] = 'doc';
-$lang->product->menuOrder[50] = 'dynamic';
-$lang->product->menuOrder[55] = 'settings';
-$lang->product->menuOrder[60] = 'create';
-$lang->product->menuOrder[65] = 'all';
+$lang->product->menuOrder[10] = 'epic';
+$lang->product->menuOrder[15] = 'requirement';
+$lang->product->menuOrder[20] = 'story';
+$lang->product->menuOrder[25] = 'plan';
+$lang->product->menuOrder[30] = 'project';
+$lang->product->menuOrder[35] = 'release';
+$lang->product->menuOrder[40] = 'roadmap';
+$lang->product->menuOrder[45] = 'track';
+$lang->product->menuOrder[50] = 'doc';
+$lang->product->menuOrder[55] = 'dynamic';
+$lang->product->menuOrder[60] = 'settings';
+$lang->product->menuOrder[65] = 'create';
+$lang->product->menuOrder[70] = 'all';
 
 $lang->product->menu->settings['subMenu'] = new stdclass();
 $lang->product->menu->settings['subMenu']->view      = array('link' => "{$lang->overview}|product|view|productID=%s", 'alias' => 'edit');
@@ -212,7 +220,7 @@ $lang->product->menu->settings['subMenu']->module    = array('link' => "{$lang->
 $lang->product->menu->settings['subMenu']->branch    = array('link' => "@branch@|branch|manage|product=%s", 'subModule' => 'branch');
 $lang->product->menu->settings['subMenu']->whitelist = array('link' => "{$lang->whitelist}|product|whitelist|product=%s", 'subModule' => 'personnel');
 
-$lang->product->dividerMenu = $config->URAndSR ? ',story,requirement,settings,' : ',story,track,settings,';
+$lang->product->dividerMenu = ',epic,track,settings,';
 
 /* Project menu. */
 $lang->project->homeMenu         = new stdclass();
@@ -223,8 +231,7 @@ $lang->project->homeMenu->kanban = array('link' => "{$lang->project->kanban}|pro
 $lang->scrum->menu              = new stdclass();
 $lang->scrum->menu->index       = array('link' => "{$lang->dashboard}|project|index|project=%s");
 $lang->scrum->menu->execution   = array('link' => "$lang->executionCommon|project|execution|status=undone&projectID=%s", 'exclude' => 'execution-testreport', 'subModule' => 'task');
-$lang->scrum->menu->storyGroup  = array('link' => "{$lang->common->story}|projectstory|story|projectID=%s&product=%s",'class' => 'dropdown dropdown-hover', 'exclude' => 'tree-browse');
-$lang->scrum->menu->story       = array('link' => "$lang->SRCommon|projectstory|story|projectID=%s", 'subModule' => 'projectstory,tree', 'alias' => 'story,track', 'exclude' => 'tree-browse');
+$lang->scrum->menu->story       = array('link' => "{$lang->common->story}|projectstory|story|projectID=%s", 'subModule' => 'projectstory,tree,epic,requirement', 'alias' => 'story,track', 'exclude' => 'tree-browse');
 $lang->scrum->menu->projectplan = array('link' => "{$lang->productplan->shortCommon}|projectplan|browse|productID=%s", 'subModule' => 'productplan');
 $lang->scrum->menu->doc         = array('link' => "{$lang->doc->common}|doc|projectSpace|objectID=%s", 'subModule' => 'doc,api');
 $lang->scrum->menu->qa          = array('link' => "{$lang->qa->common}|project|bug|projectID=%s", 'subModule' => 'testcase,testtask,bug,testreport', 'alias' => 'bug,testtask,testcase,testreport', 'exclude' => 'execution-create,execution-batchedit');
@@ -234,17 +241,12 @@ $lang->scrum->menu->release     = array('link' => "{$lang->release->common}|proj
 $lang->scrum->menu->dynamic     = array('link' => "$lang->dynamic|project|dynamic|project=%s");
 $lang->scrum->menu->settings    = array('link' => "$lang->settings|project|view|project=%s", 'subModule' => 'tree,stakeholder', 'alias' => 'edit,manageproducts,group,managemembers,manageview,managepriv,whitelist,addwhitelist,team', 'exclude' => 'tree-browsetask');
 
-$lang->scrum->menu->storyGroup['dropMenu'] = new stdclass();
-$lang->scrum->menu->storyGroup['dropMenu']->story       = array('link' => "{$lang->SRCommon}|projectstory|story|projectID=%s&productID=%s", 'subModule' => 'tree,story');
-$lang->scrum->menu->storyGroup['dropMenu']->requirement = array('link' => "{$lang->URCommon}|projectstory|story|projectID=%s&productID=%s&branch=0&browseType=&param=0&storyType=requirement", 'subModule' => 'tree,story');
-
 $lang->scrum->dividerMenu = ',execution,programplan,doc,settings,';
 
 /* Scrum menu order. */
 $lang->scrum->menuOrder[5]  = 'index';
 $lang->scrum->menuOrder[10] = 'execution';
 $lang->scrum->menuOrder[15] = 'story';
-$lang->scrum->menuOrder[16] = 'storyGroup';
 $lang->scrum->menuOrder[18] = 'projectplan';
 $lang->scrum->menuOrder[20] = 'qa';
 $lang->scrum->menuOrder[25] = 'devops';
@@ -281,8 +283,7 @@ $lang->scrum->menu->devops['menuOrder'][15] = 'mr';
 $lang->waterfall->menu = new stdclass();
 $lang->waterfall->menu->index      = array('link' => "$lang->dashboard|project|index|project=%s");
 $lang->waterfall->menu->execution  = array('link' => "{$lang->stage->common}|project|execution|status=undone&projectID=%s", 'subModule' => 'programplan,task');
-$lang->waterfall->menu->storyGroup = array('link' => "{$lang->common->story}|projectstory|story|projectID=%s",'class' => 'dropdown dropdown-hover', 'exclude' => 'tree-browse,projectstory-track');
-$lang->waterfall->menu->story      = array('link' => "$lang->SRCommon|projectstory|story|projectID=%s", 'subModule' => 'projectstory,tree', 'alias' => 'story', 'exclude' => 'projectstory-track,tree-browse');
+$lang->waterfall->menu->story      = array('link' => "{$lang->common->story}|projectstory|story|projectID=%s", 'subModule' => 'projectstory,tree', 'alias' => 'story', 'exclude' => 'projectstory-track,tree-browse');
 $lang->waterfall->menu->design     = array('link' => "{$lang->design->common}|design|browse|project=%s");
 $lang->waterfall->menu->qa         = array('link' => "{$lang->qa->common}|project|bug|projectID=%s", 'subModule' => 'testcase,testtask,bug,testreport', 'alias' => 'bug,testtask,testcase,testreport');
 $lang->waterfall->menu->doc        = array('link' => "{$lang->doc->common}|doc|projectSpace|objectID=%s");
@@ -294,14 +295,11 @@ $lang->waterfall->menu->dynamic    = array('link' => "$lang->dynamic|project|dyn
 $lang->waterfall->menu->settings = $lang->scrum->menu->settings;
 $lang->waterfall->dividerMenu    = ',programplan,build,dynamic,';
 
-$lang->waterfall->menu->storyGroup['dropMenu'] = $lang->scrum->menu->storyGroup['dropMenu'];
-
 /* Waterfall menu order. */
 $lang->waterfall->menuOrder[5]  = 'index';
 $lang->waterfall->menuOrder[15] = 'programplan';
 $lang->waterfall->menuOrder[20] = 'execution';
 $lang->waterfall->menuOrder[25] = 'story';
-$lang->waterfall->menuOrder[26] = 'storyGroup';
 $lang->waterfall->menuOrder[30] = 'design';
 $lang->waterfall->menuOrder[35] = 'devops';
 $lang->waterfall->menuOrder[55] = 'qa';
@@ -367,8 +365,7 @@ $lang->execution->menu->view   = array('link' => "$lang->view|execution|grouptas
 
 if($config->edition != 'open') $lang->execution->menu->view = array('link' => "$lang->view|execution|gantt|executionID=%s", 'alias' => 'grouptask,tree,taskeffort,gantt,calendar,relation,maintainrelation');
 
-$lang->execution->menu->storyGroup = array('link' => "{$lang->common->story}|execution|story|executionID=%s",'class' => 'dropdown dropdown-hover', 'subModule' => 'story', 'alias' => 'batchcreate,storykanban,batchtotask');
-$lang->execution->menu->story      = array('link' => "$lang->SRCommon|execution|story|executionID=%s", 'subModule' => 'story', 'alias' => 'storyview,storykanban,linkstory,batchtotask');
+$lang->execution->menu->story      = array('link' => "{$lang->common->story}|execution|story|executionID=%s", 'subModule' => 'story,requirement,epic', 'alias' => 'storyview,storykanban,linkstory,batchtotask');
 $lang->execution->menu->qa         = array('link' => "{$lang->qa->common}|execution|bug|executionID=%s", 'subModule' => 'bug,testcase,testtask,testreport', 'alias' => 'qa,bug,testcase,testtask,testreport');
 if(helper::hasFeature('devops')) $lang->execution->menu->devops = array('link' => "{$lang->devops->common}|repo|browse|repoID=0&branchID=&objectID=%s", 'subModule' => 'repo,mr', 'alias' => 'create');
 $lang->execution->menu->doc        = array('link' => "{$lang->doc->common}|execution|doc|objectID=%s", 'subModule' => 'doc');
@@ -377,10 +374,6 @@ $lang->execution->menu->action     = array('link' => "$lang->dynamic|execution|d
 $lang->execution->menu->settings   = array('link' => "$lang->settings|execution|view|executionID=%s", 'subModule' => 'personnel', 'alias' => 'edit,manageproducts,team,whitelist,addwhitelist,managemembers', 'class' => 'dropdown dropdown-hover');
 $lang->execution->menu->more       = array('link' => "$lang->more|execution|more|%s");
 
-$lang->execution->menu->storyGroup['dropMenu'] = new stdclass();
-$lang->execution->menu->storyGroup['dropMenu']->story       = array('link' => "{$lang->SRCommon}|execution|story|executionID=%s", 'subModule' => 'story');
-$lang->execution->menu->storyGroup['dropMenu']->requirement = array('link' => "{$lang->URCommon}|execution|story|executionID=%s&storyType=requirement", 'subModule' => 'story');
-
 /* Execution menu order. */
 $lang->execution->menuOrder[5]  = 'task';
 $lang->execution->menuOrder[10] = 'kanban';
@@ -436,7 +429,6 @@ $lang->project->noMultiple->scrum->menu->kanban     = $lang->execution->menu->ka
 $lang->project->noMultiple->scrum->menu->burn       = $lang->execution->menu->burn;
 $lang->project->noMultiple->scrum->menu->view       = $lang->execution->menu->view;
 $lang->project->noMultiple->scrum->menu->story      = $lang->execution->menu->story;
-$lang->project->noMultiple->scrum->menu->storyGroup = $lang->execution->menu->storyGroup;
 $lang->project->noMultiple->scrum->menu->qa         = $lang->scrum->menu->qa;
 $lang->project->noMultiple->scrum->menu->devops     = $lang->scrum->menu->devops;
 $lang->project->noMultiple->scrum->menu->doc        = $lang->scrum->menu->doc;
@@ -606,6 +598,7 @@ $lang->navGroup->product         = 'product';
 $lang->navGroup->productplan     = 'product';
 $lang->navGroup->release         = 'product';
 $lang->navGroup->branch          = 'product';
+$lang->navGroup->epic            = 'product';
 $lang->navGroup->story           = 'product';
 $lang->navGroup->requirement     = 'product';
 $lang->navGroup->productsettings = 'product';
@@ -760,7 +753,8 @@ $lang->navGroup->index   = 'index';
 $lang->navGroup->misc    = 'misc';
 $lang->navGroup->upgrade = 'upgrade';
 
-if(!$config->URAndSR) unset($lang->product->menu->requirement, $lang->product->menuOrder[35]);
+if(!$config->enableER) unset($lang->product->menu->epic, $lang->product->menuOrder[10]);
+if(!$config->URAndSR)  unset($lang->product->menu->requirement, $lang->product->menuOrder[15]);
 if(!helper::hasFeature('product_roadmap')) unset($lang->product->menu->roadmap, $lang->product->menuOrder[30]);
 if(!helper::hasFeature('product_track'))
 {
diff --git a/module/common/lang/zh-cn.php b/module/common/lang/zh-cn.php
index 8b3d198938..459cf48a38 100644
--- a/module/common/lang/zh-cn.php
+++ b/module/common/lang/zh-cn.php
@@ -224,6 +224,7 @@ $lang->metric->common       = '度量项';
 $lang->report->common       = '统计';
 $lang->system->common       = '组织';
 $lang->admin->common        = '后台';
+$lang->epic->common         = $lang->ERCommon;
 $lang->story->common        = $lang->SRCommon;
 $lang->task->common         = '任务';
 $lang->bug->common          = 'Bug';
@@ -437,7 +438,8 @@ $lang->admin->cache       = '缓存';
 
 $lang->convert->importJira = '导入Jira数据';
 
-$lang->storyConcept = '需求概念';
+$lang->storyConcept  = '需求概念';
+$lang->defaultERName = '业务需求';
 
 $lang->searchTips = '';
 $lang->searchAB   = '搜索';
@@ -445,7 +447,9 @@ $lang->searchAB   = '搜索';
 /* 查询中可以选择的对象列表。*/
 $lang->searchObjects['all']         = '全部';
 $lang->searchObjects['bug']         = 'Bug';
-$lang->searchObjects['story']       = '需求';
+$lang->searchObjects['story']       = $lang->SRCommon;
+if($config->enableER) $lang->searchObjects['epic']        = $lang->ERCommon;
+if($config->URAndSR)  $lang->searchObjects['requirement'] = $lang->URCommon;
 $lang->searchObjects['task']        = '任务';
 $lang->searchObjects['testcase']    = '用例';
 $lang->searchObjects['product']     = $lang->productCommon;
diff --git a/module/common/model.php b/module/common/model.php
index 36e5b6059f..004dd70c50 100644
--- a/module/common/model.php
+++ b/module/common/model.php
@@ -2446,7 +2446,7 @@ eof;
     {
         if(!empty($actionData['url']) && is_array($actionData['url']))
         {
-            $moduleName = $actionData['url']['module'];
+            $moduleName = ($actionData['url']['module'] == 'story' && $moduleName == 'story') ? $data->type : $actionData['url']['module'];
             $methodName = $actionData['url']['method'];
             $params     = $actionData['url']['params'];
             if(!common::hasPriv($moduleName, $methodName)) return false;
@@ -2454,7 +2454,7 @@ eof;
         }
         else if(!empty($actionData['data-url']) && is_array($actionData['data-url']))
         {
-            $moduleName = $actionData['data-url']['module'];
+            $moduleName = ($actionData['data-url']['module'] == 'story' && $moduleName == 'story') ? $data->type : $actionData['data-url']['module'];
             $methodName = $actionData['data-url']['method'];
             $params     = $actionData['data-url']['params'];
             if(!common::hasPriv($moduleName, $methodName)) return false;
diff --git a/module/custom/config.php b/module/custom/config.php
index 250272da3b..4fed63169c 100644
--- a/module/custom/config.php
+++ b/module/custom/config.php
@@ -1,21 +1,25 @@
 <?php
 $config->custom = new stdClass();
-$config->custom->canAdd['story']    = 'reasonList,sourceList,priList,categoryList';
-$config->custom->canAdd['task']     = 'priList,typeList,reasonList';
-$config->custom->canAdd['bug']      = 'priList,severityList,osList,browserList,typeList,resolutionList';
-$config->custom->canAdd['testcase'] = 'priList,typeList,stageList,resultList,statusList';
-$config->custom->canAdd['testtask'] = 'priList,typeList';
-$config->custom->canAdd['todo']     = 'priList,typeList';
-$config->custom->canAdd['user']     = 'roleList';
-$config->custom->canAdd['block']    = '';
-$config->custom->canAdd['project']  = 'unitList';
+$config->custom->canAdd['epic']        = 'reasonList,sourceList,priList,categoryList';
+$config->custom->canAdd['story']       = 'reasonList,sourceList,priList,categoryList';
+$config->custom->canAdd['requirement'] = 'reasonList,sourceList,priList,categoryList';
+$config->custom->canAdd['task']        = 'priList,typeList,reasonList';
+$config->custom->canAdd['bug']         = 'priList,severityList,osList,browserList,typeList,resolutionList';
+$config->custom->canAdd['testcase']    = 'priList,typeList,stageList,resultList,statusList';
+$config->custom->canAdd['testtask']    = 'priList,typeList';
+$config->custom->canAdd['todo']        = 'priList,typeList';
+$config->custom->canAdd['user']        = 'roleList';
+$config->custom->canAdd['block']       = '';
+$config->custom->canAdd['project']     = 'unitList';
 
 $config->custom->noModuleMenu = array();
 
-$config->custom->requiredModules[10] = 'product';
-$config->custom->requiredModules[15] = 'story';
-$config->custom->requiredModules[20] = 'productplan';
-$config->custom->requiredModules[25] = 'release';
+$config->custom->requiredModules[5]  = 'product';
+$config->custom->requiredModules[10] = 'epic';
+$config->custom->requiredModules[15] = 'requirement';
+$config->custom->requiredModules[20] = 'story';
+$config->custom->requiredModules[25] = 'productplan';
+$config->custom->requiredModules[30] = 'release';
 
 $config->custom->requiredModules[30] = 'project';
 $config->custom->requiredModules[35] = 'execution';
@@ -23,7 +27,7 @@ $config->custom->requiredModules[40] = 'task';
 $config->custom->requiredModules[45] = 'build';
 
 $config->custom->allFeatures   = array('program', 'productRR', 'productUR', 'productLine', 'projectScrum', 'projectWaterfall', 'projectKanban', 'projectAgileplus', 'projectWaterfallplus', 'execution', 'qa', 'devops', 'ai', 'report', 'kanban', 'doc', 'system', 'admin', 'vision');
-$config->custom->dataFeatures  = array('productUR', 'waterfall', 'waterfallplus');
+$config->custom->dataFeatures  = array('productER', 'productUR', 'waterfall', 'waterfallplus');
 $config->custom->scrumFeatures = array();
 
 $config->custom->requiredModules[50] = 'bug';
@@ -32,9 +36,7 @@ $config->custom->requiredModules[60] = 'testsuite';
 $config->custom->requiredModules[65] = 'testreport';
 $config->custom->requiredModules[70] = 'caselib';
 $config->custom->requiredModules[75] = 'testtask';
-
 $config->custom->requiredModules[80] = 'doc';
-
 $config->custom->requiredModules[85] = 'user';
 
 $config->custom->fieldList['program']['create']      = 'budget,PM,desc';
@@ -43,10 +45,18 @@ $config->custom->fieldList['project']['create']      = 'budget,PM,desc';
 $config->custom->fieldList['project']['edit']        = 'budget,PM,desc';
 $config->custom->fieldList['product']['create']      = 'PO,QD,RD,type,desc';
 $config->custom->fieldList['product']['edit']        = 'PO,QD,RD,type,desc,status';
+$config->custom->fieldList['epic']['create']         = 'module,plan,source,pri,estimate,keywords,spec,verify';
+$config->custom->fieldList['epic']['change']         = 'comment,spec,verify';
+$config->custom->fieldList['epic']['close']          = 'comment';
+$config->custom->fieldList['epic']['review']         = 'reviewedDate,comment';
 $config->custom->fieldList['story']['create']        = 'module,plan,source,pri,estimate,keywords,spec,verify';
 $config->custom->fieldList['story']['change']        = 'comment,spec,verify';
 $config->custom->fieldList['story']['close']         = 'comment';
 $config->custom->fieldList['story']['review']        = 'reviewedDate,comment';
+$config->custom->fieldList['requirement']['create']  = 'module,plan,source,pri,estimate,keywords,spec,verify';
+$config->custom->fieldList['requirement']['change']  = 'comment,spec,verify';
+$config->custom->fieldList['requirement']['close']   = 'comment';
+$config->custom->fieldList['requirement']['review']  = 'reviewedDate,comment';
 $config->custom->fieldList['productplan']            = 'begin,end,desc';
 $config->custom->fieldList['release']['create']      = 'desc';
 $config->custom->fieldList['release']['edit']        = 'desc';
diff --git a/module/custom/config/dtable.php b/module/custom/config/dtable.php
index 8f63510f17..c53736ed7e 100644
--- a/module/custom/config/dtable.php
+++ b/module/custom/config/dtable.php
@@ -3,15 +3,22 @@ $config->custom->browseStoryConcept->dtable = new stdclass();
 $config->custom->browseStoryConcept->dtable->fieldList['default']['type'] = 'id';
 $config->custom->browseStoryConcept->dtable->fieldList['default']['sortType'] = false;
 
+if($config->enableER)
+{
+    $config->custom->browseStoryConcept->dtable->fieldList['ERName']['title']    = $lang->custom->ERConcept;
+    $config->custom->browseStoryConcept->dtable->fieldList['ERName']['type']     = 'category';
+    $config->custom->browseStoryConcept->dtable->fieldList['ERName']['sortType'] = false;
+}
+
 if($config->URAndSR)
 {
     $config->custom->browseStoryConcept->dtable->fieldList['URName']['title']    = $lang->custom->URConcept;
-    $config->custom->browseStoryConcept->dtable->fieldList['URName']['type']     = 'title';
+    $config->custom->browseStoryConcept->dtable->fieldList['URName']['type']     = 'category';
     $config->custom->browseStoryConcept->dtable->fieldList['URName']['sortType'] = false;
 }
 
 $config->custom->browseStoryConcept->dtable->fieldList['SRName']['title']    = $lang->custom->SRConcept;
-$config->custom->browseStoryConcept->dtable->fieldList['SRName']['type']     = 'title';
+$config->custom->browseStoryConcept->dtable->fieldList['SRName']['type']     = 'category';
 $config->custom->browseStoryConcept->dtable->fieldList['SRName']['sortType'] = false;
 
 $config->custom->browseStoryConcept->dtable->fieldList['actions']['type'] = 'actions';
diff --git a/module/custom/control.php b/module/custom/control.php
index dfc47c7e9b..868ce55d17 100644
--- a/module/custom/control.php
+++ b/module/custom/control.php
@@ -60,7 +60,6 @@ class custom extends control
 
         $this->view->title       = $this->lang->custom->common . $this->lang->hyphen . $this->lang->$module->common;
         $this->view->field       = $field;
-        $this->view->lang2Set    = str_replace('_', '-', $lang);
         $this->view->module      = $module;
         $this->view->currentLang = $currentLang;
         $this->view->canAdd      = strpos($this->config->custom->canAdd[$module], $field) !== false;
@@ -254,6 +253,66 @@ class custom extends control
         return $this->send(array('result' => 'success', 'load' => inlink('browseStoryConcept')));
     }
 
+    /**
+     * 停用需求等级。
+     * Close story grade.
+     *
+     * @param  string $type
+     * @param  int    $gradeID
+     * @access public
+     * @return void
+     */
+    public function closeGrade(string $type = 'story', int $gradeID = 0)
+    {
+        if($gradeID) $this->dao->update(TABLE_STORYGRADE)->set('status')->eq('disable')->where('grade')->eq($gradeID)->andWhere('type')->eq($type)->exec();
+        return $this->sendSuccess(array('load' => true));
+    }
+
+    /**
+     * 启用需求等级。
+     * Activate story grade.
+     *
+     * @param  string $type
+     * @param  int    $gradeID
+     * @access public
+     * @return void
+     */
+    public function activateGrade(string $type = 'story', int $gradeID = 0)
+    {
+        if($gradeID) $this->dao->update(TABLE_STORYGRADE)->set('status')->eq('enable')->where('grade')->eq($gradeID)->andWhere('type')->eq($type)->exec();
+        return $this->sendSuccess(array('load' => true));
+    }
+
+    /**
+     * 删除需求等级。
+     * Delete story grade.
+     *
+     * @param  string $type
+     * @param  int    $gradeID
+     * @param  string $confirm
+     * @access public
+     * @return void
+     */
+    public function deleteGrade(string $type = 'story', int $gradeID = 0, string $confirm = 'no')
+    {
+        $story = $this->dao->select('id')->from(TABLE_STORY)->where('grade')->eq($gradeID)->andWhere('type')->eq($type)->limit(1)->fetch('id');
+        if($story) return $this->send(array('result' => 'fail', 'callback' => "zui.Modal.alert('{$this->lang->custom->notice->gradeNotEmpty}');"));
+
+        if($confirm == 'no')
+        {
+            $formUrl = $this->createLink('custom', 'deleteGrade', "type=$type&gradeID=$gradeID&confirm=yes");
+            return $this->send(array('result' => 'fail', 'callback' => "zui.Modal.confirm({message: '{$this->lang->custom->notice->deleteGrade}'}).then((res) => {if(res) $.ajaxSubmit({url: '{$formUrl}'});});"));
+        }
+
+        if($gradeID)
+        {
+            $grades = $this->dao->select('*')->from(TABLE_STORYGRADE)->where('grade')->gt($gradeID)->andWhere('type')->eq($type)->orderBy('grade_asc')->fetchAll();
+            $this->dao->delete()->from(TABLE_STORYGRADE)->where('grade')->eq($gradeID)->andWhere('type')->eq($type)->exec();
+            foreach($grades as $grade) $this->dao->update(TABLE_STORYGRADE)->set('grade')->eq($grade->grade - 1)->where('grade')->eq($grade->grade)->andWhere('type')->eq($type)->exec();
+        }
+        return $this->sendSuccess(array('load' => true));
+    }
+
     /**
      * 执行关闭设置。
      * Set whether the closed execution is read-only.
@@ -396,19 +455,25 @@ class custom extends control
         if(!isset($this->config->custom->customFields[$module][$section])) return;
         if(!in_array($key, $this->config->custom->customFields[$module][$section])) return;
 
+        $this->loadModel('setting');
+        $global  = $this->post->global;
+        $action  = $this->post->action;
         $account = $this->app->user->account;
-        if($this->server->request_method == 'POST')
+        if($global) $account = 'system';
+        if($this->server->request_method == 'POST' && $action != 'reset')
         {
             $fields = $this->post->fields;
             if(is_array($fields)) $fields = implode(',', $fields);
             if($module == 'execution' && $section == 'custom' && $key == 'createFields' && strpos(",{$fields},", ',team,') !== false) $fields .= ',teams';
-            $this->loadModel('setting')->setItem("{$account}.{$module}.{$section}.{$key}", $fields);
+
+            $this->setting->setItem("{$account}.{$module}.{$section}.{$key}", $fields);
+
             if(in_array($module, array('story', 'task', 'testcase')) && $section == 'custom' && $key == 'batchCreateFields') return;
             if($module == 'bug' && $section == 'custom' && $key == 'batchCreateFields') return;
         }
         else
         {
-            $this->loadModel('setting')->deleteItems("owner={$account}&module={$module}&section={$section}&key={$key}");
+            $this->setting->deleteItems("owner={$account}&module={$module}&section={$section}&key={$key}");
         }
 
         $this->loadModel('common')->loadConfigFromDB();
@@ -416,8 +481,8 @@ class custom extends control
         $this->app->loadConfig($module);
 
         if($module == 'programplan' && $section == 'custom') $key = 'createFields';
-        $customFields = $this->config->$module->list->{'custom' . ucfirst($key)};
-        $showFields   = $this->config->$module->custom->$key;
+        $customFields = zget(zget($this->config->$module, 'list', array()), $section . ucfirst($key), '');
+        $showFields   = zget(zget($this->config->$module, $section, array()), $key, '');
         if($module == 'marketresearch') return print(js::reload('parent'));
         return $this->send(array('result' => 'success', 'key' => $key, 'callback' => 'loadCurrentPage', 'customFields' => $customFields, 'showFields' => $showFields));
     }
diff --git a/module/custom/css/required.ui.css b/module/custom/css/required.ui.css
new file mode 100644
index 0000000000..0b35b3a9fe
--- /dev/null
+++ b/module/custom/css/required.ui.css
@@ -0,0 +1,3 @@
+#requiredForm .form-row .form-group {padding-left: 8rem;}
+#requiredForm .form-row .form-label {width: 8rem;}
+:root {--form-horz-label-width: 7rem}
diff --git a/module/custom/css/set.ui.css b/module/custom/css/set.ui.css
index bc6e8da68e..609bbc250c 100644
--- a/module/custom/css/set.ui.css
+++ b/module/custom/css/set.ui.css
@@ -4,3 +4,16 @@
 .lang-row .form-group {padding-left: 0; justify-content: center;}
 .lang-row .form-group > .form-label {width: var(--form-horz-label-width);}
 .unit-box .checkbox-primary {flex: 0 1 15%;}
+#gradeList {width: 50%}
+.gradeRuleNotice {margin-left: 4.25rem}
+td.required:after {
+    --tw-translate-y: 0.125rem;
+    --tw-scale-x: 1.25;
+    --tw-scale-y: 1.25;
+    --tw-text-opacity: 1;
+    color: rgba(var(--color-danger-500-rgb), var(--tw-text-opacity));
+    content: "*";
+    display: inline-block;
+    margin-left: 0.25rem;
+    transform: translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));
+}
diff --git a/module/custom/js/set.ui.js b/module/custom/js/set.ui.js
index 3055f5f889..5ee6f5e494 100644
--- a/module/custom/js/set.ui.js
+++ b/module/custom/js/set.ui.js
@@ -89,3 +89,26 @@ window.savaTestcaseReview = function()
 
     $.ajaxSubmit({url, data:form});
 }
+
+window.deleteGrade = function()
+{
+    $(this).closest('tr').remove();
+    $('#gradeList tbody').find('tr').last().find('.btn-add-grade').removeClass('hidden');
+}
+
+window.addGrade = function()
+{
+    let newRow   = $(this).closest('tr').clone();
+    let maxIndex = $(this).closest('tbody').find('tr').length;
+    newIndex = parseInt(maxIndex);
+
+    newRow.find('input').val('');
+    newRow.find('.btn-delete-grade').attr('href', 'javascript:void').removeClass('ajax-submit hidden').on('click', deleteGrade);
+    newRow.find('.btn-close').remove();
+    newRow.find("input[type=hidden]").val(newIndex);
+    newRow.find('td.index').text(newIndex);
+    newRow.find('td.grade-status').text(enableLang);
+    $(this).closest('tbody').append(newRow);
+
+    $(this).addClass('hidden');
+};
diff --git a/module/custom/lang/de.php b/module/custom/lang/de.php
index 0131cc2d07..cf311ce6f8 100644
--- a/module/custom/lang/de.php
+++ b/module/custom/lang/de.php
@@ -40,6 +40,7 @@ $lang->custom->setStoryConcept      = "Set Story Concept";
 $lang->custom->setDefaultConcept    = "Set Default Concept";
 $lang->custom->browseStoryConcept   = "List of story concepts";
 $lang->custom->deleteStoryConcept   = "Delete story Concept";
+$lang->custom->ERConcept            = "ER Concept";
 $lang->custom->URConcept            = "UR Concept";
 $lang->custom->SRConcept            = "SR Concept";
 $lang->custom->reviewRule           = 'Review Rules';
@@ -63,7 +64,14 @@ $lang->custom->setPercent           = "Enable or Disable {$lang->stage->percent}
 $lang->custom->beginAndEndDate      = 'Begin & End';
 $lang->custom->beginAndEndDateRange = 'The Range Of Begin & End';
 $lang->custom->limitTaskDateAction  = 'Set start and end date required';
+$lang->custom->closeGrade           = 'Close Story Grade';
+$lang->custom->activateGrade        = 'Activate Story Grade';
+$lang->custom->deleteGrade          = 'Delete Story Grade';
 $lang->custom->closeSetting         = 'Close Setting';
+$lang->custom->gradeRule            = 'Allow cross-level segmentation';
+
+$lang->custom->gradeRuleList['cross']    = 'Yes';
+$lang->custom->gradeRuleList['stepwise'] = 'No';
 
 $lang->custom->unitList['efficiency'] = 'Working Hours/';
 $lang->custom->unitList['manhour']    = 'Man-hour/';
@@ -95,6 +103,9 @@ $lang->custom->closedExecution = 'Closed ' . $lang->executionCommon;
 $lang->custom->closedKanban    = 'Closed ' . $lang->custom->kanban;
 $lang->custom->closedProduct   = 'Closed ' . $lang->productCommon;
 
+$lang->custom->gradeStatusList['enable']  = 'Normal';
+$lang->custom->gradeStatusList['disable'] = 'Disabled';
+
 $lang->custom->block = new stdclass();
 $lang->custom->block->fields['closed'] = 'Closed Block';
 
@@ -125,6 +136,9 @@ $lang->custom->story->fields['reviewRules']      = 'Review Rules';
 $lang->custom->story->fields['reviewResultList'] = 'Review Result';
 $lang->custom->story->fields['review']           = 'Review Required';
 
+$lang->custom->epic        = clone $lang->custom->story;
+$lang->custom->requirement = clone $lang->custom->story;
+
 $lang->custom->task = new stdClass();
 $lang->custom->task->fields['required']      = $lang->custom->required;
 $lang->custom->task->fields['priList']       = 'Priority';
@@ -214,6 +228,11 @@ $lang->custom->notice->selectAllTip        = 'After selecting all people, the re
 $lang->custom->notice->repeatKey           = 'Repeat Key %s';
 $lang->custom->notice->readOnlyOfCode      = "A code is a management term that exists for secrecy or as an antonym. When code management is enabled, the code information of {$lang->productCommon}, {$lang->projectCommon}, and execution in the system will be displayed in the creation, editing, detail, and list pages.";
 $lang->custom->notice->readOnlyOfPercent   = "The \"Workload Ratio\" is used to divide the workload of a {$lang->projectCommon} into different stages. The sum of the percentages of the same level stages cannot exceed 100%. After enabling the \"Workload Ratio\", users have to fill in the ratio fields when setting up the stages in the Waterfall {$lang->projectCommon} and Waterfall Plus {$lang->projectCommon} management models.";
+$lang->custom->notice->closeGrade          = "After closing, the grade cannot be used to create new stories.";
+$lang->custom->notice->activateGrade       = "After activating, the grade can be used to create new stories.";
+$lang->custom->notice->gradeNotEmpty       = 'There are stories in this grade, and it cannot be deleted!';
+$lang->custom->notice->deleteGrade         = 'Are you sure you want to delete this grade?';
+$lang->custom->notice->gradeRule           = 'Cross-lavel segmentation: Requirements can be created from any requirement system and support cross-system associated parent relationships. For example: you can create third-level requirements directly under first-level requirements.';
 
 $lang->custom->notice->indexPage['product'] = "ZenTao 8.2+ has Product Homepage. Do you want to go to Product Homepage?";
 $lang->custom->notice->indexPage['project'] = "ZenTao 8.2+ has {$lang->projectCommon} Home. Do you want to go to {$lang->projectCommon} Home?";
diff --git a/module/custom/lang/en.php b/module/custom/lang/en.php
index 7076515793..1c6768cf9b 100644
--- a/module/custom/lang/en.php
+++ b/module/custom/lang/en.php
@@ -40,6 +40,7 @@ $lang->custom->setStoryConcept      = "Set Story Concept";
 $lang->custom->setDefaultConcept    = "Set Default Concept";
 $lang->custom->browseStoryConcept   = "List of story concepts";
 $lang->custom->deleteStoryConcept   = "Delete story Concept";
+$lang->custom->ERConcept            = "ER Concept";
 $lang->custom->URConcept            = "UR Concept";
 $lang->custom->SRConcept            = "SR Concept";
 $lang->custom->reviewRule           = 'Review Rules';
@@ -63,7 +64,14 @@ $lang->custom->setPercent           = "Enable or Disable {$lang->stage->percent}
 $lang->custom->beginAndEndDate      = 'Begin & End';
 $lang->custom->beginAndEndDateRange = 'The Range Of Begin & End';
 $lang->custom->limitTaskDateAction  = 'Set start and end date required';
+$lang->custom->closeGrade           = 'Close Story Grade';
+$lang->custom->activateGrade        = 'Activate Story Grade';
+$lang->custom->deleteGrade          = 'Delete Story Grade';
 $lang->custom->closeSetting         = 'Close Setting';
+$lang->custom->gradeRule            = 'Allow cross-level segmentation';
+
+$lang->custom->gradeRuleList['cross']    = 'Yes';
+$lang->custom->gradeRuleList['stepwise'] = 'No';
 
 $lang->custom->unitList['efficiency'] = 'Working Hours/';
 $lang->custom->unitList['manhour']    = 'Man-hour/';
@@ -95,6 +103,9 @@ $lang->custom->closedExecution = 'Closed ' . $lang->executionCommon;
 $lang->custom->closedKanban    = 'Closed ' . $lang->custom->kanban;
 $lang->custom->closedProduct   = 'Closed ' . $lang->productCommon;
 
+$lang->custom->gradeStatusList['enable']  = 'Normal';
+$lang->custom->gradeStatusList['disable'] = 'Disabled';
+
 $lang->custom->block = new stdclass();
 $lang->custom->block->fields['closed'] = 'Closed Block';
 
@@ -125,6 +136,9 @@ $lang->custom->story->fields['reviewRules']      = 'Review Rules';
 $lang->custom->story->fields['reviewResultList'] = 'Review Result';
 $lang->custom->story->fields['review']           = 'Need Review';
 
+$lang->custom->epic        = clone $lang->custom->story;
+$lang->custom->requirement = clone $lang->custom->story;
+
 $lang->custom->task = new stdClass();
 $lang->custom->task->fields['required']      = $lang->custom->required;
 $lang->custom->task->fields['priList']       = 'Priority';
@@ -214,6 +228,11 @@ $lang->custom->notice->selectAllTip        = 'After selecting all people, the re
 $lang->custom->notice->repeatKey           = 'Repeat Key %s';
 $lang->custom->notice->readOnlyOfCode      = "A code is a management term that exists for secrecy or as an antonym. When code management is enabled, the code information of {$lang->productCommon}, {$lang->projectCommon}, and execution in the system will be displayed in the creation, editing, detail, and list pages.";
 $lang->custom->notice->readOnlyOfPercent   = "The \"Workload Ratio\" is used to divide the workload of a {$lang->projectCommon} into different stages. The sum of the percentages of the same level stages cannot exceed 100%. After enabling the \"Workload Ratio\", users have to fill in the ratio fields when setting up the stages in the Waterfall {$lang->projectCommon} and Waterfall Plus {$lang->projectCommon} management models.";
+$lang->custom->notice->closeGrade          = "After closing, the grade cannot be used to create new stories.";
+$lang->custom->notice->activateGrade       = "After activating, the grade can be used to create new stories.";
+$lang->custom->notice->gradeNotEmpty       = 'There are stories in this grade, and it cannot be deleted!';
+$lang->custom->notice->deleteGrade         = 'Are you sure you want to delete this grade?';
+$lang->custom->notice->gradeRule           = 'Cross-lavel segmentation: Requirements can be created from any requirement system and support cross-system associated parent relationships. For example: you can create third-level requirements directly under first-level requirements.';
 
 $lang->custom->notice->indexPage['product'] = "ZenTao 8.2+ has Product Home. Do you want to go to Product Home?";
 $lang->custom->notice->indexPage['project'] = "ZenTao 8.2+ has {$lang->projectCommon} Home. Do you want to go to {$lang->projectCommon} Home?";
diff --git a/module/custom/lang/fr.php b/module/custom/lang/fr.php
index 0f266174a0..999c8ebc92 100644
--- a/module/custom/lang/fr.php
+++ b/module/custom/lang/fr.php
@@ -40,6 +40,7 @@ $lang->custom->setStoryConcept      = "Set Story Concept";
 $lang->custom->setDefaultConcept    = "Set Default Concept";
 $lang->custom->browseStoryConcept   = "List of story concepts";
 $lang->custom->deleteStoryConcept   = "Delete story Concept";
+$lang->custom->ERConcept            = "ER Concept";
 $lang->custom->URConcept            = "UR Concept";
 $lang->custom->SRConcept            = "SR Concept";
 $lang->custom->reviewRule           = 'Review Rules';
@@ -63,7 +64,14 @@ $lang->custom->setPercent           = "Enable or Disable {$lang->stage->percent}
 $lang->custom->beginAndEndDate      = 'Begin & End';
 $lang->custom->beginAndEndDateRange = 'The Range Of Begin & End';
 $lang->custom->limitTaskDateAction  = 'Set start and end date required';
+$lang->custom->closeGrade           = 'Close Story Grade';
+$lang->custom->activateGrade        = 'Activate Story Grade';
+$lang->custom->deleteGrade          = 'Delete Story Grade';
 $lang->custom->closeSetting         = 'Close Setting';
+$lang->custom->gradeRule            = 'Allow cross-level segmentation';
+
+$lang->custom->gradeRuleList['cross']    = 'Yes';
+$lang->custom->gradeRuleList['stepwise'] = 'No';
 
 $lang->custom->unitList['efficiency'] = 'Working Hours/';
 $lang->custom->unitList['manhour']    = 'Man-hour/';
@@ -95,6 +103,9 @@ $lang->custom->closedExecution = 'Closed ' . $lang->executionCommon;
 $lang->custom->closedKanban    = 'Closed ' . $lang->custom->kanban;
 $lang->custom->closedProduct   = 'Closed ' . $lang->productCommon;
 
+$lang->custom->gradeStatusList['enable']  = 'Normal';
+$lang->custom->gradeStatusList['disable'] = 'Disabled';
+
 $lang->custom->block = new stdclass();
 $lang->custom->block->fields['closed'] = 'Bloc Fermé';
 
@@ -125,6 +136,9 @@ $lang->custom->story->fields['reviewRules']      = 'Review Rules';
 $lang->custom->story->fields['reviewResultList'] = 'Valider Résultats';
 $lang->custom->story->fields['review']           = 'Validation Requise';
 
+$lang->custom->epic        = clone $lang->custom->story;
+$lang->custom->requirement = clone $lang->custom->story;
+
 $lang->custom->task = new stdClass();
 $lang->custom->task->fields['required']      = $lang->custom->required;
 $lang->custom->task->fields['priList']       = 'Priorité';
@@ -214,6 +228,11 @@ $lang->custom->notice->selectAllTip        = 'After selecting all people, the re
 $lang->custom->notice->repeatKey           = 'Repeat Key %s';
 $lang->custom->notice->readOnlyOfCode      = "A code is a management term that exists for secrecy or as an antonym. When code management is enabled, the code information of {$lang->productCommon}, {$lang->projectCommon}, and execution in the system will be displayed in the creation, editing, detail, and list pages.";
 $lang->custom->notice->readOnlyOfPercent   = "The \"Workload Ratio\" is used to divide the workload of a {$lang->projectCommon} into different stages. The sum of the percentages of the same level stages cannot exceed 100%. After enabling the \"Workload Ratio\", users have to fill in the ratio fields when setting up the stages in the Waterfall {$lang->projectCommon} and Waterfall Plus {$lang->projectCommon} management models.";
+$lang->custom->notice->closeGrade          = "After closing, the grade cannot be used to create new stories.";
+$lang->custom->notice->activateGrade       = "After activating, the grade can be used to create new stories.";
+$lang->custom->notice->gradeNotEmpty       = 'There are stories in this grade, and it cannot be deleted!';
+$lang->custom->notice->deleteGrade         = 'Are you sure you want to delete this grade?';
+$lang->custom->notice->gradeRule           = 'Cross-lavel segmentation: Requirements can be created from any requirement system and support cross-system associated parent relationships. For example: you can create third-level requirements directly under first-level requirements.';
 
 $lang->custom->notice->indexPage['product'] = "ZenTao 8.2+ possède une page d'accueil. Voulez-vous consulter la page d'accueil du produit ?";
 $lang->custom->notice->indexPage['project'] = "ZenTao 8.2+ has {$lang->projectCommon} Home. Do you want to go to {$lang->projectCommon} Home?";
diff --git a/module/custom/lang/zh-cn.php b/module/custom/lang/zh-cn.php
index 40a45a211a..b526914fb1 100644
--- a/module/custom/lang/zh-cn.php
+++ b/module/custom/lang/zh-cn.php
@@ -40,6 +40,7 @@ $lang->custom->setStoryConcept      = "设置需求概念";
 $lang->custom->setDefaultConcept    = "设置默认概念";
 $lang->custom->browseStoryConcept   = "需求概念列表";
 $lang->custom->deleteStoryConcept   = "删除需求概念";
+$lang->custom->ERConcept            = "业需概念";
 $lang->custom->URConcept            = "用需概念";
 $lang->custom->SRConcept            = "软需概念";
 $lang->custom->reviewRule           = "评审规则";
@@ -63,7 +64,14 @@ $lang->custom->setPercent           = "是否启用{$lang->stage->percent}";
 $lang->custom->beginAndEndDate      = '起止日期';
 $lang->custom->beginAndEndDateRange = '起止日期范围';
 $lang->custom->limitTaskDateAction  = '设置起止日期必填';
+$lang->custom->closeGrade           = '停用需求层级';
+$lang->custom->activateGrade        = '启用需求层级';
+$lang->custom->deleteGrade          = '删除需求层级';
 $lang->custom->closeSetting         = '关闭设置';
+$lang->custom->gradeRule            = '是否允许跨层级细分';
+
+$lang->custom->gradeRuleList['cross']    = '是';
+$lang->custom->gradeRuleList['stepwise'] = '否';
 
 $lang->custom->unitList['efficiency'] = '工时/';
 $lang->custom->unitList['manhour']    = '人时/';
@@ -95,6 +103,9 @@ $lang->custom->closedExecution = '已关闭' . $lang->custom->executionCommon;
 $lang->custom->closedKanban    = '已关闭' . $lang->custom->kanban;
 $lang->custom->closedProduct   = '已关闭' . $lang->productCommon;
 
+$lang->custom->gradeStatusList['enable']  = '正常';
+$lang->custom->gradeStatusList['disable'] = '停用';
+
 $lang->custom->block = new stdclass();
 $lang->custom->block->fields['closed'] = '关闭的区块';
 
@@ -125,6 +136,9 @@ $lang->custom->story->fields['reviewRules']      = '评审规则';
 $lang->custom->story->fields['reviewResultList'] = '评审结果';
 $lang->custom->story->fields['review']           = '评审流程';
 
+$lang->custom->epic        = clone $lang->custom->story;
+$lang->custom->requirement = clone $lang->custom->story;
+
 $lang->custom->task = new stdClass();
 $lang->custom->task->fields['required']      = $lang->custom->required;
 $lang->custom->task->fields['priList']       = '优先级';
@@ -214,6 +228,11 @@ $lang->custom->notice->selectAllTip        = '勾选所有人员后，会清空
 $lang->custom->notice->repeatKey           = '%s键重复';
 $lang->custom->notice->readOnlyOfCode      = "代号是一种管理话术，主要便于保密或作为别名存在。启用代号管理后，系统中的{$lang->productCommon}、{$lang->projectCommon}、执行在创建、编辑、详情、列表等页面均会展示代号信息。";
 $lang->custom->notice->readOnlyOfPercent   = "工作量占比用于划分{$lang->projectCommon}中存在多个阶段时的工作量的占比，同一级阶段的百分比之和最高为100%。启用工作量占比后，系统中的瀑布{$lang->projectCommon}和融合瀑布{$lang->projectCommon}模型中设置阶段时需要维护阶段的工作量占比。";
+$lang->custom->notice->closeGrade          = "停用后，该层级无法再创建新需求。";
+$lang->custom->notice->activateGrade       = "启用后，该层级可以创建新需求。";
+$lang->custom->notice->gradeNotEmpty       = '系统内存在该层级的需求，不能删除！';
+$lang->custom->notice->deleteGrade         = '层级删除后无法恢复！';
+$lang->custom->notice->gradeRule           = '跨层细分：可从任意需求层级创建需求，并支持跨层级关联父子关系。例如：您可以在第一层需求下直接创建第三层需求。';
 
 $lang->custom->notice->indexPage['product'] = "从8.2版本起增加了产品主页视图，是否默认进入产品主页？";
 $lang->custom->notice->indexPage['project'] = "从8.2版本起增加了{$lang->projectCommon}主页视图，是否默认进入{$lang->projectCommon}主页？";
diff --git a/module/custom/model.php b/module/custom/model.php
index 6186857589..1bc0e9ff86 100644
--- a/module/custom/model.php
+++ b/module/custom/model.php
@@ -634,7 +634,9 @@ class customModel extends model
         foreach($langData as $content)
         {
             $value = json_decode($content->value);
-            $URSRPairs[$content->key] = $this->config->URAndSR ? $value->URName . '/' . $value->SRName : $value->SRName;
+            if(!$this->config->URAndSR && !$this->config->enableER) $URSRPairs[$content->key] = $value->SRName;
+            if($this->config->URAndSR  && !$this->config->enableER) $URSRPairs[$content->key] = $value->URName . '/' . $value->SRName;
+            if($this->config->URAndSR  && $this->config->enableER)  $URSRPairs[$content->key] = $value->ERName . '/' . $value->URName . '/' . $value->SRName;
         }
 
         return $URSRPairs;
@@ -722,6 +724,7 @@ class customModel extends model
             $value = json_decode($URSRData->value);
             $URSRList[$URSRData->key] = new stdclass();
             $URSRList[$URSRData->key]->key    = $URSRData->key;
+            $URSRList[$URSRData->key]->ERName = $value->ERName;
             $URSRList[$URSRData->key]->SRName = $value->SRName;
             $URSRList[$URSRData->key]->URName = $value->URName;
             $URSRList[$URSRData->key]->system = $URSRData->system;
@@ -833,11 +836,13 @@ class customModel extends model
         /* If has custom UR and SR name. */
         foreach($data['SRName'] as $key => $SRName)
         {
-            if(isset($data['URName']))  $URName = zget($data['URName'], $key, '');
-            if(!isset($data['URName'])) $URName = $this->lang->URCommon;
-            if(!$URName || !$SRName) continue;
+            $URName = zget($data['URName'], $key, $this->lang->URCommon);
+            $ERName = zget($data['ERName'], $key, $this->lang->ERCommon);
+
+            if(!$URName || !$SRName || !$ERName) continue;
 
             $URSRList = new stdclass();
+            $URSRList->ERName = $ERName;
             $URSRList->SRName = $SRName;
             $URSRList->URName = $URName;
 
@@ -863,7 +868,7 @@ class customModel extends model
     public function updateURAndSR(int $key = 0, string $lang = '', array $data = array()): bool
     {
         if(empty($lang)) $lang = $this->app->getClientLang();
-        if(empty($data['SRName']) || empty($data['URName'])) return false;
+        if(empty($data['SRName']) || empty($data['URName']) || empty($data['ERName'])) return false;
 
         $oldValue = $this->getURSRConcept($key, $lang);
         $oldValue = json_decode($oldValue);
@@ -871,8 +876,10 @@ class customModel extends model
         if(!$oldValue) return false;
 
         $URSRList = new stdclass();
+        $URSRList->defaultERName = zget($oldValue, 'defaultERName', $oldValue->ERName);
         $URSRList->defaultSRName = zget($oldValue, 'defaultSRName', $oldValue->SRName);
         $URSRList->defaultURName = zget($oldValue, 'defaultURName', $oldValue->URName);
+        $URSRList->ERName        = empty($data['ERName']) ? $URSRList->defaultERName : $data['ERName'];
         $URSRList->SRName        = empty($data['SRName']) ? $URSRList->defaultSRName : $data['SRName'];
         $URSRList->URName        = empty($data['URName']) ? $URSRList->defaultURName : $data['URName'];
 
@@ -1032,9 +1039,25 @@ class customModel extends model
         $URAndSR = strpos(",$disabledFeatures,", ',productUR,') === false ? '1' : '0';
         $this->setting->setItem('system.custom.URAndSR', $URAndSR);
 
+        $disableER = strpos(",$disabledFeatures,", ',productER,') !== false;
+        $enableER  = (!$URAndSR || $disableER) ? '0' : '1';
+        $this->setting->setItem('system.custom.enableER', $enableER);
+
         $this->processMeasrecordCron();
     }
 
+    /**
+     * 检查系统中是否有业务需求数据。
+     * Check whether there is epic data in the system.
+     *
+     * @access public
+     * @return int
+     */
+    public function hasProductERData(): int
+    {
+        return (int)$this->dao->select('*')->from(TABLE_STORY)->where('type')->eq('epic')->andWhere('deleted')->eq('0')->count();
+    }
+
     /**
      * 检查系统中是否有用户需求数据。
      * Check whether there is requirement data in the system.
diff --git a/module/custom/test/model/setstorygrade.php b/module/custom/test/model/setstorygrade.php
new file mode 100755
index 0000000000..24248c3b7b
--- /dev/null
+++ b/module/custom/test/model/setstorygrade.php
@@ -0,0 +1,48 @@
+#!/usr/bin/env php
+<?php
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+
+zdTable('storygrade');
+su('admin');
+
+/**
+
+title=测试 customModel->setStoryGrade();
+timeout=0
+cid=1
+
+- 查看插入的等级数量 @5
+- 查看插入的等级1详情
+ - 第0条的grade属性 @1
+ - 第0条的name属性 @一级
+ - 第0条的status属性 @enable
+- 查看插入的等级5详情
+ - 第4条的grade属性 @5
+ - 第4条的name属性 @五级
+ - 第4条的status属性 @enable
+
+*/
+
+$data['grade'] = array(
+    0 => 1,
+    1 => 2,
+    2 => 3,
+    3 => 4,
+    4 => 5
+);
+
+$data['gradeName'] = array(
+    0 => '一级',
+    1 => '二级',
+    2 => '三级',
+    3 => '四级',
+    4 => '五级'
+);
+
+global $tester;
+$tester->loadModel('custom')->setStoryGrade('story', $data);
+$gradeSetting = $tester->loadModel('story')->getGradeList();
+
+r(count($gradeSetting)) && p()                      && e('5');              // 查看插入的等级数量
+r($gradeSetting)        && p('0:grade,name,status') && e('1,一级,enable');  // 查看插入的等级1详情
+r($gradeSetting)        && p('4:grade,name,status') && e('5,五级,enable');  // 查看插入的等级5详情
diff --git a/module/custom/ui/editstoryconcept.html.php b/module/custom/ui/editstoryconcept.html.php
index c3b9cb30cd..64b44374dd 100644
--- a/module/custom/ui/editstoryconcept.html.php
+++ b/module/custom/ui/editstoryconcept.html.php
@@ -16,10 +16,20 @@ formPanel
     set::title($lang->custom->editStoryConcept),
     formRow
     (
+        $config->enableER ? formGroup
+        (
+            set::width('1/3'),
+            setClass('justify-center'),
+            span
+            (
+                setClass('text-md font-bold'),
+                $lang->custom->ERConcept
+            )
+        ) : null,
         $config->URAndSR ? formGroup
         (
-            set::width('1/2'),
-            setClass('justify-center mr-8'),
+            set::width('1/3'),
+            setClass('justify-center'),
             span
             (
                 setClass('text-md font-bold'),
@@ -28,7 +38,7 @@ formPanel
         ) : null,
         formGroup
         (
-            set::width('1/2'),
+            set::width('1/3'),
             setClass('justify-center'),
             span
             (
@@ -41,15 +51,23 @@ formPanel
     (
         formGroup
         (
-            setClass('mr-8'),
+            set::width('1/3'),
+            setClass('mr-2'),
+            set::name('ERName'),
+            set::value($URSR->ERName),
+            setClass(!$this->config->enableER ? 'hidden' : '')
+        ),
+        formGroup
+        (
+            setClass('mr-2'),
             setClass(!$this->config->URAndSR ? 'hidden' : ''),
-            set::width('1/2'),
+            set::width('1/3'),
             set::name('URName'),
             set::value($URSR->URName)
         ),
         formGroup
         (
-            set::width('1/2'),
+            set::width('1/3'),
             set::name('SRName'),
             set::value($URSR->SRName)
         )
diff --git a/module/custom/ui/set.html.php b/module/custom/ui/set.html.php
index aa6763b76c..84be00aaf1 100644
--- a/module/custom/ui/set.html.php
+++ b/module/custom/ui/set.html.php
@@ -49,7 +49,7 @@ if($module == 'project' && $field == 'unitList')
     );
     $actionWidth = 'w-full';
 }
-elseif(in_array($module, array('story', 'demand')) && $field == 'reviewRules')
+elseif(in_array($module, array('story', 'requirement', 'epic', 'demand')) && $field == 'reviewRules')
 {
     $formItems[] = formGroup
     (
@@ -71,7 +71,24 @@ elseif(in_array($module, array('story', 'demand')) && $field == 'reviewRules')
         set::items($users)
     );
 }
-elseif(in_array($module, array('story', 'demand', 'testcase')) && $field == 'review')
+elseif(in_array($module, array('story', 'requirement', 'epic')) && $field == 'gradeRule')
+{
+    $formItems[] = formGroup
+    (
+        set::width('1/2'),
+        set::label($lang->custom->gradeRule),
+        set::name('gradeRule'),
+        set::value($gradeRule),
+        set::control('radioListInline'),
+        set::items($lang->custom->gradeRuleList)
+    );
+    $formItems[] = div
+    (
+        setClass('gradeRuleNotice'),
+        div($lang->custom->notice->gradeRule)
+    );
+}
+elseif(in_array($module, array('epic', 'story', 'requirement', 'demand', 'testcase')) && $field == 'review')
 {
     $formItems[] = formGroup
     (
@@ -84,7 +101,7 @@ elseif(in_array($module, array('story', 'demand', 'testcase')) && $field == 'rev
         on::change('changeReview')
     );
 
-    if($module == 'story' || $module == 'demand')
+    if(in_array($module, array('story', 'requirement', 'epic', 'demand')))
     {
         $formItems[] = formRow
         (
@@ -540,35 +557,103 @@ else
     }
 }
 
-div
-(
-    setID('mainContent'),
-    setClass('row has-sidebar-left'),
-    isset($sidebarMenu) ? $sidebarMenu : null,
-    formPanel
-    (
-        set::formID('settingForm'),
-        set::headingClass('justify-start'),
-        setClass('flex-auto'),
-        setClass(!empty($sidebarMenu) ? 'ml-0.5' : null),
-        set::actionsClass($actionWidth),
-        set::actions($formActions),
-        div
-        (
-            setClass('flex items-center'),
-            span
-            (
-                setClass('text-md font-bold'),
-                $lang->custom->$module->fields[$field]
-            ),
-            span
-            (
-                setClass('ml-2'),
-                $headingTips
+if(in_array($module, array('story', 'requirement', 'epic')) && $field == 'grade')
+{
+    jsVar('enableLang', $lang->custom->gradeStatusList['enable']);
+    $tbody = array();
+    foreach($storyGrades as $grade)
+    {
+        $items   = array();
+        $hidden  = ($grade->grade == 1) ? 'hidden' : '';
+        $hideAdd = (end($storyGrades) == $grade) ? '' : 'hidden';
+        $items[] = array('icon' => 'plus',  'class' => "btn ghost btn-add-grade $hideAdd");
+        if($grade->status == 'enable' && common::hasPriv('custom', 'closeGrade'))     $items[] = array('icon' => 'off',   'class' => "btn ghost btn-close ajax-submit $hidden", 'url' => inlink('closeGrade', "type={$module}&id={$grade->grade}"), 'data-confirm' => $lang->custom->notice->closeGrade);
+        if($grade->status == 'disable' && common::hasPriv('custom', 'activateGrade')) $items[] = array('icon' => 'magic', 'class' => "btn ghost btn-active ajax-submit", 'url' => inlink('activateGrade', "type={$module}&id={$grade->grade}"), 'data-confirm' => $lang->custom->notice->activateGrade);
+        if(common::hasPriv('custom', 'deleteGrade')) $items[] = array('icon' => 'trash', 'class' => "btn ghost btn-delete-grade ajax-submit $hidden", 'url' => inlink('deleteGrade', "type={$module}&id={$grade->grade}"));
+
+        $tbody[] = h::tr(
+            formHidden('grade[]', $grade->grade),
+            h::td($grade->grade, set::width('100px'), setClass('index')),
+            h::td(input(set::name('gradeName[]'), set::value($grade->name))),
+            h::td(zget($lang->custom->gradeStatusList, $grade->status), set::width('80px'), setClass('grade-status')),
+            h::td(
+                set::width('100px'),
+                btnGroup
+                (
+                    set::items($items)
+                )
             )
-        ),
-        $formItems
-    )
-);
+        );
+    }
+
+    div
+    (
+        setID('mainContent'),
+        setClass('row has-sidebar-left'),
+        $sidebarMenu,
+        formPanel(
+            set::title($lang->custom->story->fields['grade']),
+            setClass('ml-0.5'),
+            on::click('.btn-add-grade', 'addGrade'),
+            set::actions(array()),
+            h::table(
+                setID('gradeList'),
+                setClass('table table-form borderless'),
+                h::tr(
+                    h::td($lang->story->grade),
+                    h::td($lang->story->gradeName, setClass('required')),
+                    h::td($lang->story->statusAB),
+                    h::td($lang->actions)
+                ),
+                $tbody,
+                h::tfoot(
+                    h::tr(
+                        h::td(),
+                        h::td(
+                            btn(
+                                $lang->save,
+                                setClass('primary btn-wide'),
+                                set::btnType('submit')
+                            )
+                        )
+                    )
+                )
+            )
+        )
+    );
+}
+else
+{
+    div
+    (
+        setID('mainContent'),
+        setClass('row has-sidebar-left'),
+        isset($sidebarMenu) ? $sidebarMenu : null,
+        formPanel
+        (
+            set::formID('settingForm'),
+            set::headingClass('justify-start'),
+            setClass('flex-auto'),
+            setClass(!empty($sidebarMenu) ? 'ml-0.5' : null),
+            set::actionsClass($actionWidth),
+            set::actions($formActions),
+            div
+            (
+                setClass('flex items-center'),
+                span
+                (
+                    setClass('text-md font-bold'),
+                    $lang->custom->$module->fields[$field]
+                ),
+                span
+                (
+                    setClass('ml-2'),
+                    $headingTips
+                )
+            ),
+            $formItems
+        )
+    );
+}
 
 render();
diff --git a/module/custom/ui/setstoryconcept.html.php b/module/custom/ui/setstoryconcept.html.php
index caf5eae1e8..c2776f30ca 100644
--- a/module/custom/ui/setstoryconcept.html.php
+++ b/module/custom/ui/setstoryconcept.html.php
@@ -16,6 +16,12 @@ formBatchPanel
     set::title($lang->custom->setStoryConcept),
     set::minRows(1),
     set::maxRows(1),
+    $config->enableER ? formBatchItem
+    (
+        set::width('1/3'),
+        set::label($lang->custom->ERConcept),
+        set::name('ERName')
+    ) : null,
     $config->URAndSR ? formBatchItem
     (
         set::width('1/3'),
diff --git a/module/custom/zen.php b/module/custom/zen.php
index 2005a61195..4a453f888e 100644
--- a/module/custom/zen.php
+++ b/module/custom/zen.php
@@ -57,6 +57,7 @@ class customZen extends custom
         }
         $this->view->fieldList = $fieldList;
         $this->view->dbFields  = $dbFields;
+        $this->view->lang2Set  = str_replace('_', '-', $lang);
     }
 
     /**
@@ -80,18 +81,27 @@ class customZen extends custom
             $this->view->unitList        = explode(',', $unitList);
             $this->view->defaultCurrency = zget($this->config->$module, 'defaultCurrency', 'CNY');
         }
-        if(in_array($module, array('story', 'demand')) && $field == 'reviewRules')
+        if(in_array($module, array('story', 'demand', 'requirement', 'epic')) && $field == 'reviewRules')
         {
             $this->app->loadConfig($module);
             $this->view->reviewRule     = zget($this->config->$module, 'reviewRules', 'allpass');
             $this->view->users          = $this->loadModel('user')->getPairs('noclosed|nodeleted');
             $this->view->superReviewers = zget($this->config->$module, 'superReviewers', '');
         }
-        if(in_array($module, array('story', 'testcase', 'demand')) && $field == 'review')
+        if(in_array($module, array('story', 'requirement', 'epic')) && $field == 'gradeRule')
+        {
+            $this->app->loadConfig($module);
+            $this->view->gradeRule = zget($this->config->$module, 'gradeRule', '');
+        }
+        if(in_array($module, array('story', 'requirement', 'epic')) && $field == 'grade')
+        {
+            $this->view->storyGrades = $this->loadModel('story')->getGradeList($module);
+        }
+        if(in_array($module, array('story', 'testcase', 'demand', 'requirement', 'epic')) && $field == 'review')
         {
             $this->app->loadConfig($module);
             $this->loadModel('user');
-            if(in_array($module, array('story', 'demand')))
+            if(in_array($module, array('story', 'requirement', 'demand', 'epic')))
             {
                 $this->view->depts               = $this->loadModel('dept')->getDeptPairs();
                 $this->view->forceReviewRoles    = zget($this->config->$module, 'forceReviewRoles', '');
@@ -142,11 +152,19 @@ class customZen extends custom
             $data['unitList'] = implode(',', $data['unitList']);
             $this->loadModel('setting')->setItems("system.$module", $data);
         }
-        elseif(($module == 'story' || $module == 'demand') && $field == 'review')
+        elseif(in_array($module, array('story', 'demand', 'requirement', 'epic')) && $field == 'review')
         {
             $this->setStoryReview($module, $data);
         }
-        elseif(($module == 'story' || $module == 'demand') && $field == 'reviewRules')
+        elseif(in_array($module, array('story', 'requirement', 'epic')) && $field == 'gradeRule')
+        {
+            $this->setGradeRule($module, $data);
+        }
+        elseif(in_array($module, array('story', 'requirement', 'epic')) && $field == 'grade')
+        {
+            $this->custom->setStoryGrade($module, $data);
+        }
+        elseif(in_array($module, array('story', 'demand', 'requirement', 'epic')) && $field == 'reviewRules')
         {
             if(!isset($data['superReviewers'])) $data['superReviewers'] = array();
             $data['superReviewers'] = implode(',', $data['superReviewers']);
@@ -331,6 +349,21 @@ class customZen extends custom
         return !dao::isError();
     }
 
+    /**
+     * 设置需求细分流程。
+     * Set the rule of story grade.
+     *
+     * @param  string    $module
+     * @param  array     $data
+     * @access protected
+     * @return bool
+     */
+    public function setGradeRule(string $module, array $data): bool
+    {
+        $this->loadModel('setting')->setItems("system.{$module}", $data);
+        return !dao::isError();
+    }
+
     /**
      * 设置用例评审规则。
      * Set testcase review rules.
diff --git a/module/datatable/control.php b/module/datatable/control.php
index 2e49ab984e..804bf4709c 100644
--- a/module/datatable/control.php
+++ b/module/datatable/control.php
@@ -82,6 +82,8 @@ class datatable extends control
             if($account == 'guest') return $this->send(array('result' => 'fail', 'message' => 'guest.'));
 
             $rawModule  = zget($this->config->datatable->moduleAlias, "$module-$method", $module);
+            if($rawModule == 'story' && $extra && $rawModule != $extra) $rawModule = $extra;
+
             $fieldList  = $this->datatable->getFieldList($rawModule, $method);
             $postFields = json_decode($this->post->fields);
 
@@ -102,7 +104,7 @@ class datatable extends control
             $value = json_encode($fields);
 
             /* Split story and requirement custom fields. */
-            if(strpos(',product-browse,execution-story,', ",$module-$method,") !== false && strpos(',story,requirement,', ",$extra,") !== false) $name = 'datatable.' . $module . ucfirst($method) . ucfirst($extra) . '.cols';
+            if(("$module-$method" == 'product-browse') && in_array($extra, array('story', 'requirement', 'epic'))) $name = 'datatable.' . $module . ucfirst($method) . ucfirst($extra) . '.cols';
 
             /* 保存个人配置信息。 */
             $this->loadModel('setting')->setItem($account . '.' . $name, $value);
@@ -144,12 +146,13 @@ class datatable extends control
         if(zget($this->config->datatable->moduleAlias, "$module-$method", $module) == 'story')
         {
             unset($cols['product'], $cols['module']);
-            if($extra != 'requirement') unset($cols['SRS']);
-            if($extra == 'requirement')
+            if($extra != 'story')
             {
-                foreach(array('plan', 'stage', 'taskCount', 'bugCount', 'caseCount', 'URS') as $field) unset($cols[$field]);
-                $cols['title']['title'] = str_replace($this->lang->SRCommon, $this->lang->URCommon, $this->lang->story->title);
+                foreach(array('taskCount', 'bugCount', 'caseCount') as $field) unset($cols[$field]);
+                $cols['title']['title'] = $cols['title']['title'] = $this->lang->story->name;
             }
+
+            if($this->app->tab != 'product') $cols['title']['title'] = $this->lang->story->name;
         }
 
         if(($module == 'productplan' && $method == 'browse') || ($module == 'project' && $method == 'bug'))
diff --git a/module/datatable/model.php b/module/datatable/model.php
index 42799392ae..4adf8b3bc2 100644
--- a/module/datatable/model.php
+++ b/module/datatable/model.php
@@ -84,10 +84,11 @@ class datatableModel extends model
         if(!$method) $method = $this->app->getMethodName();
         $datatableId = $module . ucfirst($method);
 
-        /* Split story and requirement custom fields. */
-        if(strpos(',product-browse,execution-story,', ",$module-$method,") !== false && strpos(',story,requirement,', $extra) !== false) $datatableId .= ucfirst($extra);
+        /* Split story,requirement and epic custom fields. */
+        if(("$module-$method" == 'product-browse') && in_array($extra, array('story', 'requirement', 'epic'))) $datatableId .= ucfirst($extra);
 
         $module = zget($this->config->datatable->moduleAlias, "$module-$method", $module);
+        if($module == 'story' && $extra && $module != $extra) $module = $extra;
 
         if(!isset($this->config->$module)) $this->loadModel($module);
         if(isset($this->config->datatable->$datatableId->cols)) $setting = json_decode($this->config->datatable->$datatableId->cols, true);
diff --git a/module/design/control.php b/module/design/control.php
index 62e6f15590..3f0ad3b98d 100755
--- a/module/design/control.php
+++ b/module/design/control.php
@@ -88,7 +88,7 @@ class design extends control
 
         $products      = $this->product->getProductPairsByProject($projectID);
         $productIdList = $productID ? $productID : array_keys($products);
-        $stories       = $this->loadModel('story')->getProductStoryPairs($productIdList, 'all', 0, 'active', 'id_desc', 0, 'full', 'story', false);
+        $stories       = $this->loadModel('story')->getProductStoryPairs($productIdList, 'all', 0, 'active', 'id_desc', 0, 'full', 'full');
         $queryID       = $type == 'bySearch' ? $param : 0;
 
         /* Build Search Form. */
@@ -150,10 +150,11 @@ class design extends control
 
         $products      = $this->product->getProductPairsByProject($projectID);
         $productIdList = $productID ? $productID : array_keys($products);
+        $stories       = $this->loadModel('story')->getProductStoryPairs($productIdList, 'all', 0, 'active', 'id_desc', 0, 'full', 'full');
 
         $this->view->title      = $this->lang->design->common . $this->lang->hyphen . $this->lang->design->create;
         $this->view->users      = $this->loadModel('user')->getPairs('noclosed');
-        $this->view->stories    = $this->loadModel('story')->getProductStoryPairs($productIdList, 'all', 0, 'active', 'id_desc', 0, 'full', 'story', false);
+        $this->view->stories    = $this->story->addGradeLabel($stories);
         $this->view->productID  = $productID;
         $this->view->projectID  = $projectID;
         $this->view->type       = $type;
@@ -187,11 +188,12 @@ class design extends control
 
         $products      = $this->product->getProductPairsByProject($projectID);
         $productIdList = $productID ? $productID : array_keys($products);
+        $stories       = $this->loadModel('story')->getProductStoryPairs($productIdList, 'all', 0, 'active', 'id_desc', 0, 'full', 'full');
 
         $project = $this->loadModel('project')->getByID($projectID);
 
         $this->view->title     = $this->lang->design->common . $this->lang->hyphen . $this->lang->design->batchCreate;
-        $this->view->stories   = $this->loadModel('story')->getProductStoryPairs($productIdList);
+        $this->view->stories   = $this->story->addGradeLabel($stories);
         $this->view->users     = $this->loadModel('user')->getPairs('noclosed');
         $this->view->type      = $type;
         $this->view->typeList  = $project->model == 'waterfall' ? $this->lang->design->typeList : $this->lang->design->plusTypeList;
@@ -222,7 +224,7 @@ class design extends control
 
         $this->view->title    = $this->lang->design->common . $this->lang->hyphen . $this->lang->design->view;
         $this->view->design   = $design;
-        $this->view->stories  = $this->loadModel('story')->getProductStoryPairs($productIdList);
+        $this->view->stories  = $this->loadModel('story')->getProductStoryPairs($productIdList, 'all', 0, 'active', 'id_desc', 0, 'full', 'full');
         $this->view->users    = $this->loadModel('user')->getPairs('noletter');
         $this->view->actions  = $this->loadModel('action')->getList('design', $design->id);
         $this->view->repos    = $this->loadModel('repo')->getRepoPairs('project', $design->project);
@@ -265,11 +267,12 @@ class design extends control
         $products      = $this->product->getProductPairsByProject($design->project);
         $productIdList = $design->product ? $design->product : array_keys($products);
         $project       = $this->loadModel('project')->getByID($design->project);
+        $stories       = $this->loadModel('story')->getProductStoryPairs($productIdList, 'all', 0, 'active', 'id_desc', 0, 'full', 'full');
 
         $this->view->title    = $this->lang->design->common . $this->lang->hyphen . $this->lang->design->edit;
         $this->view->design   = $design;
         $this->view->project  = $project;
-        $this->view->stories  = $this->loadModel('story')->getProductStoryPairs($productIdList);
+        $this->view->stories  = $this->story->addGradeLabel($stories);
         $this->view->users    = $this->loadModel('user')->getPairs('noclosed|noletter');
         $this->view->typeList = $project->model == 'waterfall' ? $this->lang->design->typeList : $this->lang->design->plusTypeList;
 
@@ -441,15 +444,12 @@ class design extends control
      */
     public function ajaxGetProductStories(int $productID, int $projectID, string $status = 'all', string $hasParent = 'true')
     {
+        $hasParent     = $hasParent == 'true';
         $products      = $this->product->getProductPairsByProject($projectID);
         $productIdList = $productID ? $productID : array_keys($products);
-        $stories       = $this->loadModel('story')->getProductStoryPairs($productIdList, 'all', 0, $status, 'id_desc', 0, 'full', 'story', $hasParent);
+        $stories       = $this->loadModel('story')->getProductStoryPairs($productIdList, 'all', 0, $status, 'id_desc', 0, 'full', 'full', $hasParent);
 
-        $items = array();
-        foreach($stories as $storyID => $storyTitle)
-        {
-            $items[] = array('value' => $storyID, 'text' => $storyTitle, 'keys' => $storyTitle);
-        }
+        $items = $this->story->addGradeLabel($stories);
         return print(json_encode($items));
     }
 
diff --git a/module/design/js/common.ui.js b/module/design/js/common.ui.js
index 5bcb246f8f..3a7a0a777a 100644
--- a/module/design/js/common.ui.js
+++ b/module/design/js/common.ui.js
@@ -9,7 +9,7 @@ function loadStory(e)
 {
     const productID = $(e.target).val();
     const storyID   = $('input[name=story]').val();
-    const link      = $.createLink('design', 'ajaxGetProductStories', 'productID=' + productID + '&projectID=' + projectID + '&status=active&hasParent=false');
+    const link      = $.createLink('design', 'ajaxGetProductStories', 'productID=' + productID + '&projectID=' + projectID + '&status=active&hasParent=true');
     $.getJSON(link, function(data)
     {
         const $storyPicker = $('input[name=story]').zui('picker');
diff --git a/module/design/model.php b/module/design/model.php
index e00e04a2b6..5c8a095572 100755
--- a/module/design/model.php
+++ b/module/design/model.php
@@ -253,6 +253,8 @@ class designModel extends model
             $design->commit .= html::a(helper::createLink('design', 'revision', "revisionID={$relation->BID}&projectID={$design->project}"), "# {$revision}", '', "title='{$revision}' class='flex clip'");
         }
 
+        if($design->story > 0) $design->storyInfo = $this->loadModel('story')->fetchByID((int)$design->story);
+
         return $this->loadModel('file')->replaceImgURL($design, 'desc');
     }
 
diff --git a/module/design/ui/view.html.php b/module/design/ui/view.html.php
index 4adce5e492..6090fdd51b 100644
--- a/module/design/ui/view.html.php
+++ b/module/design/ui/view.html.php
@@ -40,7 +40,7 @@ foreach($config->design->view->operateList['common'] as $operate)
     $commonActions[] = $config->design->actionList[$operate];
 }
 
-$moduleName = empty($project->hasProduct) ? 'projectstory' : 'story';
+$moduleName = empty($project->hasProduct) ? 'projectstory' : (isset($design->storyInfo) ? $design->storyInfo->type : 'story');
 $storyName  = zget($stories, $design->story, '');
 if($common::hasPriv($moduleName, 'view'))
 {
diff --git a/module/dev/control.php b/module/dev/control.php
index 0dd891c2fc..31699c46b7 100644
--- a/module/dev/control.php
+++ b/module/dev/control.php
@@ -191,7 +191,7 @@ class dev extends control
         }
 
         $key = '';
-        if($type == 'common') $key = '&key=projectCommon,productCommon,executionCommon';
+        if($type == 'common') $key = '&key=projectCommon,productCommon,executionCommon,ERCommon,URCommon,SRCommon';
 
         $this->loadModel('custom')->deleteItems("lang={$language}&module={$module}&vision={$this->config->vision}{$section}{$key}");
         if($this->config->vision == 'rnd' and $type == 'common' and $this->config->custom->URSR)
@@ -201,6 +201,7 @@ class dev extends control
             {
                 $oldValue = json_decode($oldValue);
                 $setting = array(
+                    'ERName' => zget($oldValue, 'defaultERName', $oldValue->ERName),
                     'SRName' => zget($oldValue, 'defaultSRName', $oldValue->SRName),
                     'URName' => zget($oldValue, 'defaultURName', $oldValue->URName)
                 );
diff --git a/module/dev/lang/de.php b/module/dev/lang/de.php
index 163a8499a1..682f94a0d7 100644
--- a/module/dev/lang/de.php
+++ b/module/dev/lang/de.php
@@ -25,7 +25,8 @@ $lang->dev->language    = 'Language: %s';
 $lang->dev->default     = 'Default';
 $lang->dev->currentLang = 'Current Language';
 $lang->dev->change      = 'Change';
-$lang->dev->UR          = 'Epic';
+$lang->dev->ER          = 'Epic';
+$lang->dev->UR          = 'Feature';
 $lang->dev->SR          = 'Story';
 $lang->dev->branch      = 'Branch';
 
diff --git a/module/dev/lang/en.php b/module/dev/lang/en.php
index 40ee0e08e7..80bd715375 100644
--- a/module/dev/lang/en.php
+++ b/module/dev/lang/en.php
@@ -25,7 +25,8 @@ $lang->dev->language    = 'Language: %s';
 $lang->dev->default     = 'Default';
 $lang->dev->currentLang = 'Current Language';
 $lang->dev->change      = 'Change';
-$lang->dev->UR          = 'Epic';
+$lang->dev->ER          = 'Epic';
+$lang->dev->UR          = 'Feature';
 $lang->dev->SR          = 'Story';
 $lang->dev->branch      = 'Branch';
 
diff --git a/module/dev/lang/fr.php b/module/dev/lang/fr.php
index 40ee0e08e7..80bd715375 100644
--- a/module/dev/lang/fr.php
+++ b/module/dev/lang/fr.php
@@ -25,7 +25,8 @@ $lang->dev->language    = 'Language: %s';
 $lang->dev->default     = 'Default';
 $lang->dev->currentLang = 'Current Language';
 $lang->dev->change      = 'Change';
-$lang->dev->UR          = 'Epic';
+$lang->dev->ER          = 'Epic';
+$lang->dev->UR          = 'Feature';
 $lang->dev->SR          = 'Story';
 $lang->dev->branch      = 'Branch';
 
diff --git a/module/dev/lang/zh-cn.php b/module/dev/lang/zh-cn.php
index 93afb2ffa2..5438129a72 100644
--- a/module/dev/lang/zh-cn.php
+++ b/module/dev/lang/zh-cn.php
@@ -25,6 +25,7 @@ $lang->dev->language    = '语言：%s';
 $lang->dev->default     = '默认值';
 $lang->dev->currentLang = '当前语言';
 $lang->dev->change      = '修改值';
+$lang->dev->ER          = '业务需求';
 $lang->dev->UR          = '用户需求';
 $lang->dev->SR          = '软件需求';
 $lang->dev->branch      = '平台/分支';
diff --git a/module/dev/model.php b/module/dev/model.php
index 7f1d424dbd..462cfc8d2b 100644
--- a/module/dev/model.php
+++ b/module/dev/model.php
@@ -410,6 +410,7 @@ class devModel extends model
                 $originalLangs['productCommon'] = $this->config->productCommonList[$language][PRODUCT_KEY];
                 $originalLangs['projectCommon'] = $this->config->projectCommonList[$language][PROJECT_KEY];
                 $originalLangs['executionCommon'] = $this->config->executionCommonList[$language][$projectKey];
+                $originalLangs['ERCommon']        = $this->lang->dev->ER;
                 $originalLangs['URCommon']        = $this->lang->dev->UR;
                 $originalLangs['SRCommon']        = $this->lang->dev->SR;
 
@@ -419,10 +420,12 @@ class devModel extends model
                 if($URSRList)
                 {
                     $URSRList = json_decode($URSRList->value);
+                    $originalLangs['ERCommon'] = isset($URSRList->defaultERName) ? $URSRList->defaultERName : $URSRList->ERName;
                     $originalLangs['URCommon'] = isset($URSRList->defaultURName) ? $URSRList->defaultURName : $URSRList->URName;
                     $originalLangs['SRCommon'] = isset($URSRList->defaultSRName) ? $URSRList->defaultSRName : $URSRList->SRName;
                 }
-                if(!$this->config->URAndSR) unset($originalLangs['URCommon']);
+                if(!$this->config->URAndSR)  unset($originalLangs['URCommon']);
+                if(!$this->config->enableER) unset($originalLangs['ERCommon']);
             }
             else
             {
@@ -507,12 +510,15 @@ class devModel extends model
                 if($URSRList)
                 {
                     $URSRList = json_decode($URSRList->value);
+                    $defaultERName = isset($URSRList->defaultERName) ? $URSRList->defaultERName : $URSRList->ERName;
                     $defaultURName = isset($URSRList->defaultURName) ? $URSRList->defaultURName : $URSRList->URName;
                     $defaultSRName = isset($URSRList->defaultSRName) ? $URSRList->defaultSRName : $URSRList->SRName;
+                    $customedLangs['ERCommon'] = $defaultERName == $URSRList->ERName ? '' : $URSRList->ERName;
                     $customedLangs['URCommon'] = $defaultURName == $URSRList->URName ? '' : $URSRList->URName;
                     $customedLangs['SRCommon'] = $defaultSRName == $URSRList->SRName ? '' : $URSRList->SRName;
                 }
-                if(!$this->config->URAndSR) unset($customedLangs['URCommon']);
+                if(!$this->config->enableER) unset($customedLangs['ERCommon']);
+                if(!$this->config->URAndSR)  unset($customedLangs['URCommon']);
                 break;
             case 'first':
                 $customeds = $this->loadModel('custom')->getItems("lang={$language}&module=common&section=mainNav&vision={$this->config->vision}");
@@ -591,6 +597,7 @@ class devModel extends model
         if(empty($langFilesToLoad)) return false;
 
         $lang = $module == 'common' ? new language() : $this->defaultLang;
+        $lang->ERCommon        = '$ERCOMMON';
         $lang->URCommon        = '$URCOMMON';
         $lang->SRCommon        = '$SRCOMMON';
         $lang->productCommon   = '$PRODUCTCOMMON';
@@ -1014,7 +1021,6 @@ class devModel extends model
         $this->loadModel('custom')->deleteItems("lang={$language}&module={$moduleName}&vision={$this->config->vision}{$section}{$key}");
 
         $data = fixer::input('post')->get();
-        if($type == 'common') unset($data->common_SRCommon, $data->common_URCommon);
         foreach($data as $langKey => $customedLang)
         {
             if(strpos($langKey, "{$moduleName}_") !== 0) continue;
@@ -1044,7 +1050,8 @@ class devModel extends model
 
             $setting = array(
                 'SRName' => $this->post->common_SRCommon !== false ? $this->post->common_SRCommon : zget($oldValue, 'defaultSRName', $oldValue->SRName),
-                'URName' => $this->post->common_URCommon !== false ? $this->post->common_URCommon : zget($oldValue, 'defaultURName', $oldValue->URName)
+                'URName' => $this->post->common_URCommon !== false ? $this->post->common_URCommon : zget($oldValue, 'defaultURName', $oldValue->URName),
+                'ERName' => $this->post->common_ERCommon !== false ? $this->post->common_ERCommon : zget($oldValue, 'defaultERName', $oldValue->ERName)
             );
             $this->custom->updateURAndSR($this->config->custom->URSR, $language, $setting);
         }
diff --git a/module/epic/config.php b/module/epic/config.php
new file mode 100644
index 0000000000..5cb42bb64d
--- /dev/null
+++ b/module/epic/config.php
@@ -0,0 +1,4 @@
+<?php
+global $app;
+$app->loadConfig('story');
+$config->epic = clone $config->story;
diff --git a/module/epic/control.php b/module/epic/control.php
new file mode 100644
index 0000000000..9ff02fbeca
--- /dev/null
+++ b/module/epic/control.php
@@ -0,0 +1,435 @@
+<?php
+class epic extends control
+{
+    /**
+     * Create a epic.
+     *
+     * @param  int    $productID
+     * @param  int    $branch
+     * @param  int    $moduleID
+     * @param  int    $storyID
+     * @param  int    $objectID  projectID|executionID
+     * @param  int    $bugID
+     * @param  int    $planID
+     * @param  int    $todoID
+     * @param  string $extra for example feedbackID=0
+     * @access public
+     * @return void
+     */
+    public function create(int $productID = 0, string $branch = '', int $moduleID = 0, int $storyID = 0, int $objectID = 0, int $bugID = 0, int $planID = 0, int $todoID = 0, string $extra = '')
+    {
+        echo $this->fetch('story', 'create', "productID=$productID&branch=$branch&moduleID=$moduleID&storyID=$storyID&objectID=$objectID&bugID=$bugID&planID=$planID&todoID=$todoID&extra=$extra&storyType=epic");
+    }
+
+    /**
+     * Create a batch stories.
+     *
+     * @param  int    $productID
+     * @param  string $branch
+     * @param  int    $moduleID
+     * @param  int    $storyID
+     * @param  int    $executionID projectID|executionID
+     * @param  int    $plan
+     * @param  string $storyType
+     * @param  string $extra for example feedbackID=0
+     * @access public
+     * @return void
+     */
+    public function batchCreate(int $productID = 0, string $branch = '', int $moduleID = 0, int $storyID = 0, int $executionID = 0, int $plan = 0, string $storyType = 'epic', string $extra = '')
+    {
+        echo $this->fetch('story', 'batchCreate', "productID=$productID&branch=$branch&moduleID=$moduleID&storyID=$storyID&executionID=$executionID&plan=$plan&storyType=epic&extra=$extra");
+    }
+
+    /**
+     * View a epic.
+     *
+     * @param  int    $storyID
+     * @param  int    $version
+     * @param  int    $param     executionID|projectID
+     * @param  string $storyType
+     * @access public
+     * @return void
+     */
+    public function view(int $storyID, int $version = 0, int $param = 0)
+    {
+        echo $this->fetch('story', 'view', "storyID=$storyID&version=$version&param=$param&storyType=epic");
+    }
+
+    /**
+     * Edit a epic.
+     *
+     * @param  int    $storyID
+     * @param  string $kanbanGroup
+     * @access public
+     * @return void
+     */
+    public function edit(int $storyID, string $kanbanGroup = 'default')
+    {
+        echo $this->fetch('story', 'edit', "storyID=$storyID&kanbanGroup=$kanbanGroup&storyType=epic");
+    }
+
+    /**
+     * Batch edit epic.
+     *
+     * @param  int    $productID
+     * @param  int    $executionID
+     * @param  int    $branch
+     * @param  string $storyType
+     * @param  string $from
+     * @access public
+     * @return void
+     */
+    public function batchEdit(int $productID = 0, int $executionID = 0, string $branch = '', string $storyType = 'epic', string $from = '')
+    {
+        echo $this->fetch('story', 'batchEdit', "productID=$productID&executionID=$executionID&branch=$branch&storyType=epic&from=$from");
+    }
+
+    /**
+     * 关联Epic。
+     * Link related epics.
+     *
+     * @param  int    $storyID
+     * @param  string $browseType
+     * @param  string $excludeStories
+     * @param  int    $param
+     * @param  int    $recTotal
+     * @param  int    $recPerPage
+     * @param  int    $pageID
+     * @access public
+     * @return void
+     */
+    public function linkStories(int $storyID, string $browseType = '', string $excludeStories = '', int $param = 0, int $recTotal = 0, int $recPerPage = 20, int $pageID = 1)
+    {
+        echo $this->fetch('story', 'linkStories', "storyID=$storyID&browseType=$browseType&excludeStories=$excludeStories&param=$param&recTotal=$recTotal&recPerPage=$recPerPage&pageID=$pageID");
+    }
+
+    /**
+     * 关联用户需求。
+     * Link related requirements.
+     *
+     * @param  int    $storyID
+     * @param  string $browseType
+     * @param  string $excludeStories
+     * @param  int    $param
+     * @param  int    $recTotal
+     * @param  int    $recPerPage
+     * @param  int    $pageID
+     * @access public
+     * @return void
+     */
+    public function linkRequirements(int $storyID, string $browseType = '', string $excludeStories = '', int $param = 0, int $recTotal = 0, int $recPerPage = 20, int $pageID = 1)
+    {
+        echo $this->fetch('story', 'linkRequirements', "storyID=$storyID&browseType=$browseType&excludeStories=$excludeStories&param=$param&recTotal=$recTotal&recPerPage=$recPerPage&pageID=$pageID");
+    }
+
+    /**
+     * 导出需求数据。
+     * Get the data of the requiremens to export.
+     *
+     * @param  int    $productID
+     * @param  string $orderBy
+     * @param  int    $executionID
+     * @param  string $browseType
+     * @access public
+     * @return void
+     */
+    public function export(int $productID, string $orderBy, int $executionID = 0, string $browseType = '')
+    {
+        echo $this->fetch('story', 'export', "productID=$productID&orderBy=$orderBy&executionID=$executionID&browseType=$browseType&storyType=epic");
+    }
+
+    /**
+     * 导入需求数据。
+     * Import the data of the requiremens.
+     *
+     * @param  int    $productID
+     * @param  int    $branch
+     * @param  string $storyType
+     * @param  int    $projectID
+     * @access public
+     * @return void
+     */
+    public function import($productID, $branch = 0, $storyType = 'epic', $projectID = 0)
+    {
+        echo $this->fetch('story', 'import', "productID=$productID&branch=$branch&storyType=epic&projectID=$projectID");
+    }
+
+    /**
+     * 显示导入需求数据的页面。
+     * Show the page of importing the data of the requiremens.
+     *
+     * @param  int    $productID
+     * @param  int    $branch
+     * @param  string $type
+     * @param  int    $projectID
+     * @param  int    $pagerID
+     * @param  int    $maxImport
+     * @param  string $insert
+     * @access public
+     * @return void
+     */
+    public function showImport($productID, $branch = 0, $type = 'epic', $projectID = 0, $pagerID = 1, $maxImport = 0, $insert = '')
+    {
+        echo $this->fetch('story', 'showImport', "productID=$productID&branch=$branch&type=epic&projectID=$projectID&pagerID=$pagerID&maxImport=$maxImport&insert=$insert");
+    }
+
+    /**
+     * 导出需求模板。
+     * Export the template of the requiremens.
+     *
+     * @param  int    $productID
+     * @param  int    $branch
+     * @param  string $storyType
+     * @access public
+     * @return void
+     */
+    public function exportTemplate($productID, $branch = 0, $storyType = 'epic')
+    {
+        echo $this->fetch('story', 'exportTemplate', "productID=$productID&branch=$branch&storyType=epic");
+    }
+
+    /**
+     * Delete a epic.
+     *
+     * @param  int    $storyID
+     * @param  string $confirm   yes|no
+     * @param  string $from      taskkanban
+     * @access public
+     * @return void
+     */
+    public function delete(int $storyID, string $confirm = 'no', string $from = '')
+    {
+        echo $this->fetch('story', 'delete', "storyID=$storyID&confirm=$confirm&from=$from&storyType=epic");
+    }
+
+    /**
+     * Change a epic.
+     *
+     * @param  int    $storyID
+     * @param  string $from
+     * @access public
+     * @return void
+     */
+    public function change(int $storyID, string $from = '')
+    {
+        echo $this->fetch('story', 'change', "storyID=$storyID&from=$from&storyType=epic");
+    }
+
+    /**
+     * Review a epic.
+     *
+     * @param  int    $storyID
+     * @param  string $from      product|project
+     * @access public
+     * @return void
+     */
+    public function review(int $storyID, string $from = 'product')
+    {
+        echo $this->fetch('story', 'review', "storyID=$storyID&from=$from&storyType=epic");
+    }
+
+    /**
+     * Submit review.
+     *
+     * @param  int    $storyID
+     * @access public
+     * @return void
+     */
+    public function submitReview(int $storyID)
+    {
+        echo $this->fetch('story', 'submitReview', "storyID=$storyID&storyType=epic");
+    }
+
+    /**
+     * Batch review epics.
+     *
+     * @param  string $result
+     * @param  string $reason
+     * @access public
+     * @return void
+     */
+    public function batchReview(string $result, string $reason = '')
+    {
+        echo $this->fetch('story', 'batchReview', "result=$result&reason=$reason&storyType=epic");
+    }
+
+    /**
+     * Recall the epic review or epic change.
+     *
+     * @param  int    $storyID
+     * @param  string $from      list
+     * @param  string $confirm   no|yes
+     * @access public
+     * @return void
+     */
+    public function recall(int $storyID, string $from = 'list', string $confirm = 'no')
+    {
+        echo $this->fetch('story', 'recall', "storyID=$storyID&from=$from&confirm=$confirm&storyType=epic");
+    }
+
+    /**
+     * 需求的指派给页面。
+     * Assign the epic to a user.
+     *
+     * @param  int    $storyID
+     * @access public
+     * @return void
+     */
+    public function assignTo(int $storyID)
+    {
+        echo $this->fetch('story', 'assignTo', "storyID=$storyID");
+    }
+
+    /**
+     * 关闭需求。
+     * Close the epic.
+     *
+     * @param  int    $storyID
+     * @param  string $from      taskkanban
+     * @access public
+     * @return void
+     */
+    public function close(int $storyID, string $from = '')
+    {
+        echo $this->fetch('story', 'close', "storyID=$storyID&from=$from&storyType=epic");
+    }
+
+    /**
+     * 批量关闭需求。
+     * Batch close the requiremens.
+     *
+     * @param  int    $productID
+     * @param  int    $executionID
+     * @param  string $storyType
+     * @param  string $from        contribute|work
+     * @access public
+     * @return void
+     */
+    public function batchClose(int $productID = 0, int $executionID = 0, string $storyType = 'epic', string $from = '')
+    {
+        echo $this->fetch('story', 'batchClose', "productID=$productID&executionID=$executionID&storyType=epic&from=$from");
+    }
+
+    /**
+     * 激活需求。
+     * Activate a epic.
+     *
+     * @param  int    $storyID
+     * @access public
+     * @return void
+     */
+    public function activate(int $storyID)
+    {
+        echo $this->fetch('story', 'activate', "storyID=$storyID&storyType=epic");
+    }
+
+    /**
+     * 查看需求的报告。
+     * The report page.
+     *
+     * @param  int    $productID
+     * @param  int    $branchID
+     * @param  string $storyType
+     * @param  string $browseType
+     * @param  int    $moduleID
+     * @param  string $chartType
+     * @param  int    $projectID
+     * @access public
+     * @return void
+     */
+    public function report(int $productID, int $branchID, string $storyType = 'epic', string $browseType = 'unclosed', int $moduleID = 0, string $chartType = 'pie', int $projectID = 0)
+    {
+        echo $this->fetch('story', 'report', "productID=$productID&branchID=$branchID&storyType=epic&browseType=$browseType&moduleID=$moduleID&chartType=$chartType&projectID=$projectID");
+    }
+
+    /**
+     * Batch change branch.
+     *
+     * @param  int    $branchID
+     * @param  string $confirm  yes|no
+     * @param  string $storyIdList
+     * @access public
+     * @return void
+     */
+    public function batchChangeBranch(int $branchID, string $confirm = '', string $storyIdList = '')
+    {
+        echo $this->fetch('story', 'batchChangeBranch', "branchID=$branchID&confirm=$confirm&storyIdList=$storyIdList&storyType=epic");
+    }
+
+    /**
+     * Batch assign to.
+     *
+     * @param  string $storyType story|epic
+     * @access public
+     * @return void
+     */
+    public function batchAssignTo(string $storyType = 'epic', string $assignedTo = '')
+    {
+        echo $this->fetch('story', 'batchAssignTo', "storyType=epic&assignedTo=$assignedTo");
+    }
+
+    /**
+     * Batch change the module of story.
+     *
+     * @param  int    $moduleID
+     * @access public
+     * @return void
+     */
+    public function batchChangeModule(int $moduleID)
+    {
+        echo $this->fetch('story', 'batchChangeModule', "moduleID=$moduleID&storyType=epic");
+    }
+
+    /**
+     * Batch change parent.
+     *
+     * @param  int    $productID
+     * @param  string $storyType
+     * @access public
+     * @return void
+     */
+    public function batchChangeParent(int $productID = 0, string $storyType = 'epic')
+    {
+        echo $this->fetch('story', 'batchChangeParent', "productID=$productID&storyType=epic");
+    }
+
+    /**
+     * Batch change grade.
+     *
+     * @param  int    $grade
+     * @access public
+     * @return void
+     */
+    public function batchChangeGrade(int $grade)
+    {
+        echo $this->fetch('story', 'batchChangeGrade', "grade=$grade&storyType=requirement");
+    }
+
+    /**
+     * Batch change plan.
+     *
+     * @param  int    $planID
+     * @param  int    $oldPlanID
+     * @access public
+     * @return void
+     */
+    public function batchChangePlan(int $planID, int $oldPlanID = 0)
+    {
+        echo $this->fetch('story', 'batchChangePlan', "planID=$planID&oldPlanID=$oldPlanID&storyType=epic");
+    }
+
+    /**
+     * Ajax get the stories of a user.
+     *
+     * @param  int     $userID
+     * @param  string  $id
+     * @param  int     $appendID
+     * @param  string  $storyType
+     * @access public
+     * @return void
+     */
+    public function ajaxGetUserStories(int $userID = 0, string $id = '', int $appendID = 0, $storyType = 'epic')
+    {
+        echo $this->fetch('story', 'ajaxGetUserStories', "userID=$userID&id=$id&appendID=$appendID&storyType=epic");
+    }
+}
diff --git a/module/epic/lang/de.php b/module/epic/lang/de.php
new file mode 100644
index 0000000000..51a42db40d
--- /dev/null
+++ b/module/epic/lang/de.php
@@ -0,0 +1,20 @@
+<?php
+global $app;
+$app->loadLang('story');
+$lang->epic = clone $lang->story;
+
+foreach($lang->epic as $key => $value)
+{
+    if(!is_string($value)) continue;
+    if(strpos($value, $lang->SRCommon) !== false) $lang->epic->$key = str_replace($lang->SRCommon, $lang->ERCommon, $value);
+}
+
+$lang->epic->common = $lang->ERCommon;
+
+$lang->epic->stageList = array();
+$lang->epic->stageList[''] = '';
+$lang->epic->stageList['defining']   = 'Defining';
+$lang->epic->stageList['planning']   = 'Planning';
+$lang->epic->stageList['developing'] = 'Developing';
+$lang->epic->stageList['delivering'] = 'Delivering';
+$lang->epic->stageList['closed']     = 'Closed';
diff --git a/module/epic/lang/en.php b/module/epic/lang/en.php
new file mode 100644
index 0000000000..51a42db40d
--- /dev/null
+++ b/module/epic/lang/en.php
@@ -0,0 +1,20 @@
+<?php
+global $app;
+$app->loadLang('story');
+$lang->epic = clone $lang->story;
+
+foreach($lang->epic as $key => $value)
+{
+    if(!is_string($value)) continue;
+    if(strpos($value, $lang->SRCommon) !== false) $lang->epic->$key = str_replace($lang->SRCommon, $lang->ERCommon, $value);
+}
+
+$lang->epic->common = $lang->ERCommon;
+
+$lang->epic->stageList = array();
+$lang->epic->stageList[''] = '';
+$lang->epic->stageList['defining']   = 'Defining';
+$lang->epic->stageList['planning']   = 'Planning';
+$lang->epic->stageList['developing'] = 'Developing';
+$lang->epic->stageList['delivering'] = 'Delivering';
+$lang->epic->stageList['closed']     = 'Closed';
diff --git a/module/epic/lang/fr.php b/module/epic/lang/fr.php
new file mode 100644
index 0000000000..51a42db40d
--- /dev/null
+++ b/module/epic/lang/fr.php
@@ -0,0 +1,20 @@
+<?php
+global $app;
+$app->loadLang('story');
+$lang->epic = clone $lang->story;
+
+foreach($lang->epic as $key => $value)
+{
+    if(!is_string($value)) continue;
+    if(strpos($value, $lang->SRCommon) !== false) $lang->epic->$key = str_replace($lang->SRCommon, $lang->ERCommon, $value);
+}
+
+$lang->epic->common = $lang->ERCommon;
+
+$lang->epic->stageList = array();
+$lang->epic->stageList[''] = '';
+$lang->epic->stageList['defining']   = 'Defining';
+$lang->epic->stageList['planning']   = 'Planning';
+$lang->epic->stageList['developing'] = 'Developing';
+$lang->epic->stageList['delivering'] = 'Delivering';
+$lang->epic->stageList['closed']     = 'Closed';
diff --git a/module/epic/lang/zh-cn.php b/module/epic/lang/zh-cn.php
new file mode 100644
index 0000000000..a6013fed7f
--- /dev/null
+++ b/module/epic/lang/zh-cn.php
@@ -0,0 +1,20 @@
+<?php
+global $app;
+$app->loadLang('story');
+$lang->epic = clone $lang->story;
+
+foreach($lang->epic as $key => $value)
+{
+    if(!is_string($value)) continue;
+    if(strpos($value, $lang->SRCommon) !== false) $lang->epic->$key = str_replace($lang->SRCommon, $lang->ERCommon, $value);
+}
+
+$lang->epic->common = $lang->ERCommon;
+
+$lang->epic->stageList = array();
+$lang->epic->stageList[''] = '';
+$lang->epic->stageList['defining']   = '定义中';
+$lang->epic->stageList['planning']   = '规划中';
+$lang->epic->stageList['developing'] = '研发中';
+$lang->epic->stageList['delivering'] = '交付中';
+$lang->epic->stageList['closed']     = '已关闭';
diff --git a/module/epic/model.php b/module/epic/model.php
new file mode 100644
index 0000000000..84823d051a
--- /dev/null
+++ b/module/epic/model.php
@@ -0,0 +1,10 @@
+<?php
+class epicModel extends model
+{
+    public static function isClickable(object $data, string $action): bool
+    {
+        global $app;
+        $app->control->loadModel('story');
+        return call_user_func_array(array('storyModel', 'isClickable'), array($data, $action));
+    }
+}
diff --git a/module/execution/config/dtable.php b/module/execution/config/dtable.php
index 59155a791b..5cb164ce91 100644
--- a/module/execution/config/dtable.php
+++ b/module/execution/config/dtable.php
@@ -248,15 +248,16 @@ $config->execution->linkStory->dtable->fieldList['id']['sortType'] = true;
 $config->execution->linkStory->dtable->fieldList['id']['fixed']    = 'left';
 $config->execution->linkStory->dtable->fieldList['id']['group']    = 1;
 
-$config->execution->linkStory->dtable->fieldList['title']['title']       = $lang->story->title;
-$config->execution->linkStory->dtable->fieldList['title']['type']        = 'title';
-$config->execution->linkStory->dtable->fieldList['title']['link']        = helper::createLink('story', 'view', 'storyID={id}');
-$config->execution->linkStory->dtable->fieldList['title']['sortType']    = true;
-$config->execution->linkStory->dtable->fieldList['title']['fixed']       = 'left';
-$config->execution->linkStory->dtable->fieldList['title']['group']       = 2;
-$config->execution->linkStory->dtable->fieldList['title']['data-app']    = $app->tab;
-$config->execution->linkStory->dtable->fieldList['title']['data-toggle'] = 'modal';
-$config->execution->linkStory->dtable->fieldList['title']['data-size']   = 'lg';
+$config->execution->linkStory->dtable->fieldList['title']['title']        = $lang->story->name;
+$config->execution->linkStory->dtable->fieldList['title']['type']         = 'title';
+$config->execution->linkStory->dtable->fieldList['title']['link']         = helper::createLink('story', 'storyview', 'storyID={id}');
+$config->execution->linkStory->dtable->fieldList['title']['sortType']     = true;
+$config->execution->linkStory->dtable->fieldList['title']['fixed']        = 'left';
+$config->execution->linkStory->dtable->fieldList['title']['group']        = 2;
+$config->execution->linkStory->dtable->fieldList['title']['nestedToggle'] = true;
+$config->execution->linkStory->dtable->fieldList['title']['data-app']     = $app->tab;
+$config->execution->linkStory->dtable->fieldList['title']['data-toggle']  = 'modal';
+$config->execution->linkStory->dtable->fieldList['title']['data-size']    = 'lg';
 
 $config->execution->linkStory->dtable->fieldList['pri']['title']    = $lang->story->pri;
 $config->execution->linkStory->dtable->fieldList['pri']['type']     = 'pri';
diff --git a/module/execution/control.php b/module/execution/control.php
index 3f21f4be78..6d1752c85b 100644
--- a/module/execution/control.php
+++ b/module/execution/control.php
@@ -429,6 +429,8 @@ class execution extends control
     {
         /* Load these models. */
         $this->loadModel('story');
+        $this->loadModel('requirement');
+        $this->loadModel('epic');
         $this->loadModel('product');
 
         /* Change for requirement story title. */
@@ -455,6 +457,7 @@ class execution extends control
 
         $execution   = $this->commonAction($executionID);
         $executionID = $execution->id;
+        $project     = $this->loadModel('project')->fetchById($execution->project);
 
         /* Build the search form. */
         $products  = $this->product->getProducts($executionID);
@@ -466,7 +469,7 @@ class execution extends control
         if($this->app->getViewType() == 'xhtml') $recPerPage = 10;
         $pager = new pager($recTotal, $recPerPage, $pageID);
 
-        $stories = $this->story->getExecutionStories($executionID, 0, $sort, $type, (string)$param, $storyType, '', $pager);
+        $stories = $this->story->getExecutionStories($executionID, 0, $sort, $type, (string)$param, $project->storyType, '', $pager);
         $this->loadModel('common')->saveQueryCondition($this->dao->get(), 'story', false);
 
         if(!empty($stories)) $stories = $this->story->mergeReviewer($stories);
@@ -475,6 +478,7 @@ class execution extends control
         $this->executionZen->assignCountForStory($executionID, $stories, $storyType);
         $this->executionZen->assignRelationForStory($execution, $products, $productID, $type, $storyType, $param, $orderBy, $pager);
 
+        $this->view->project = $project;
         $this->display();
     }
 
@@ -1012,7 +1016,7 @@ class execution extends control
         if(!empty($_POST))
         {
             /* Filter empty plans. */
-            if(isset($_POST['attribute']) and in_array($_POST['attribute'], array('request', 'design', 'review'))) unset($_POST['plans']);
+            if(isset($_POST['attribute']) and $_POST['attribute'] == 'review') unset($_POST['plans']);
             if(!empty($_POST['plans']))
             {
                 foreach($_POST['plans'] as $key => $planItem) $_POST['plans'][$key] = array_filter($_POST['plans'][$key]);
@@ -1656,6 +1660,8 @@ class execution extends control
     public function kanban(int $executionID, string $browseType = 'all', string $orderBy = 'id_asc', string $groupBy = 'default')
     {
         $this->app->loadLang('bug');
+        $this->app->loadLang('epic');
+        $this->app->loadLang('requirement');
         $this->app->loadLang('kanban');
 
         if($this->config->vision != 'lite') $this->lang->execution->menu = new stdclass();
@@ -1718,6 +1724,8 @@ class execution extends control
     {
         if(!$this->loadModel('common')->checkPrivByObject('execution', $executionID)) return $this->execution->accessDenied();
         /* Load model and language. */
+        $this->app->loadLang('epic');
+        $this->app->loadLang('requirement');
         $this->app->loadLang('task');
         $this->app->loadLang('bug');
         $this->loadModel('kanban');
@@ -1744,12 +1752,12 @@ class execution extends control
         $this->session->set('execLaneType', $browseType);
 
         /* Get kanban data. */
-        $orderBy     = $groupBy == 'story' && $browseType == 'task' && !isset($this->lang->kanban->orderList[$orderBy]) ? 'id_asc' : $orderBy;
-        $kanbanGroup = $this->kanban->getExecutionKanban($executionID, $browseType, $groupBy, '', $orderBy);
+        $orderBy = $groupBy == 'story' && $browseType == 'task' && !isset($this->lang->kanban->orderList[$orderBy]) ? 'id_asc' : $orderBy;
+        list($kanbanGroup, $links) = $this->kanban->getExecutionKanban($executionID, $browseType, $groupBy, '', $orderBy);
         if(empty($kanbanGroup))
         {
             $this->kanban->createExecutionLane($executionID, $browseType);
-            $kanbanGroup = $this->kanban->getExecutionKanban($executionID, $browseType, $groupBy, '', $orderBy);
+            list($kanbanGroup, $links) = $this->kanban->getExecutionKanban($executionID, $browseType, $groupBy, '', $orderBy);
         }
 
         /* Show lanes of the attribute: no story and bug in request, no bug in design. */
@@ -1765,6 +1773,7 @@ class execution extends control
         $this->view->browseType   = $browseType;
         $this->view->features     = $features;
         $this->view->kanbanGroup  = $kanbanGroup;
+        $this->view->links        = $links;
         $this->view->groupBy      = $groupBy;
 
         $this->display();
@@ -1895,15 +1904,17 @@ class execution extends control
 
         $execution = $this->execution->getById($executionID);
         $project   = $this->project->getById($execution->project);
-        if($execution->lifetime == 'ops') unset($this->lang->execution->treeLevel['story']);
 
+        if($execution->lifetime == 'ops') unset($this->lang->execution->treeLevel['story']);
         if($this->app->tab == 'project') $this->view->projectID = $execution->project;
 
+        $gradeGroup = $this->loadModel('story')->getGradeGroup();
+
         $this->view->title       = $this->lang->execution->tree;
         $this->view->execution   = $execution;
         $this->view->executionID = $executionID;
         $this->view->level       = $type;
-        $this->view->tree        = $this->execution->buildTree($tree, (bool)$project->hasProduct);
+        $this->view->tree        = $this->execution->buildTree($tree, (bool)$project->hasProduct, $gradeGroup);
         $this->view->features    = $this->execution->getExecutionFeatures($execution);
         $this->display();
     }
@@ -2228,7 +2239,7 @@ class execution extends control
         $object = $this->project->getByID($objectID, 'project,sprint,stage,kanban');
 
         $browseLink = $this->createLink('execution', 'story', "executionID=$objectID&storyType=$storyType");
-        if($this->app->tab == 'project' and $object->multiple) $browseLink = $this->createLink('projectstory', 'story', "objectID=$objectID&productID=0&branch=0&browseType=&param=0&storyType=$storyType");
+        if($this->app->tab == 'project' and $object->multiple) $browseLink = $this->createLink('projectstory', 'story', "objectID=$objectID");
 
         if($object->type == 'kanban' && !$object->hasProduct) $this->lang->productCommon = $this->lang->project->common;
 
@@ -2277,29 +2288,21 @@ class execution extends control
             }
         }
 
-        if($storyType == 'requirement')
-        {
-            $this->app->loadLang('projectstory');
-            $this->lang->story->title               = str_replace($this->lang->SRCommon, $this->lang->URCommon, $this->lang->story->title);
-            $this->lang->projectstory->whyNoStories = str_replace($this->lang->SRCommon, $this->lang->URCommon, $this->lang->projectstory->whyNoStories);
-            $this->lang->execution->linkStory       = str_replace($this->lang->SRCommon, $this->lang->URCommon, $this->lang->story->linkStory);
-            if(isset($this->config->product->search['fields']['stage'])) unset($this->config->product->search['fields']['stage']);
-        }
-
         /* Build the search form. */
         $actionURL    = $this->createLink($this->app->rawModule, 'linkStory', "objectID=$objectID&browseType=bySearch&queryID=myQueryID&orderBy=$orderBy&recPerPage=$recPerPage&pageID=$pageID&extra=$extra&storyType=$storyType");
         $branchGroups = $this->loadModel('branch')->getByProducts(array_keys($products));
         $queryID      = ($browseType == 'bySearch') ? (int)$param : 0;
         $this->execution->buildStorySearchForm($products, $branchGroups, $modules, $queryID, $actionURL, 'linkStory', $object);
 
-        if($browseType == 'bySearch') $allStories = $this->story->getBySearch('all', '', $queryID, $orderBy, $objectID, $storyType);
-        if($browseType != 'bySearch') $allStories = $this->story->getProductStories(implode(',', array_keys($products)), $branchIDList, '0', 'active', $storyType, $orderBy, false, '', null);
-        $linkedStories = $this->story->getExecutionStoryPairs($objectID, 0, 'all', 0, 'full', 'all', $storyType);
+        $project   = (strpos('sprint,stage,kanban', $object->type) !== false) ? $this->loadModel('project')->getByID($object->project) : $object;
+        $storyType = (($object->type == 'stage' && in_array($object->attribute, array('mix', 'request', 'design'))) || $object->type == 'project' || !$object->multiple) ? $project->storyType : 'story';
 
+        if($browseType == 'bySearch') $allStories = $this->story->getBySearch('all', '', $queryID, $orderBy, $objectID, $storyType);
+        if($browseType != 'bySearch') $allStories = $this->story->getProductStories(implode(',', array_keys($products)), $branchIDList, '0', 'active,launched', $storyType, $orderBy, true, '', null);
+        $linkedStories = $this->story->getExecutionStoryPairs($objectID, 0, 'all', 0, 'full', 'all', $storyType);
         foreach($allStories as $id => $story)
         {
             if(isset($linkedStories[$story->id])) unset($allStories[$id]);
-            if($story->parent < 0) unset($allStories[$id]);
 
             if(!isset($modules[$story->module]))
             {
@@ -2311,14 +2314,15 @@ class execution extends control
             $story->estimate = $story->estimate . $this->config->hourUnit;
         }
 
+        $gradeGroup = array();
+        $gradeList  = $this->story->getGradeList('');
+        foreach($gradeList as $grade) $gradeGroup[$grade->type][$grade->grade] = $grade->name;
+
         /* Set the pager. */
         $this->app->loadClass('pager', true);
         $pager      = new pager(count($allStories), $recPerPage, $pageID);
         $allStories = array_chunk($allStories, $pager->recPerPage);
 
-        $project = $object;
-        if(strpos('sprint,stage,kanban', $object->type) !== false) $project = $this->loadModel('project')->getByID($object->project);
-
         $productPairs = array();
         foreach($products as $id => $product) $productPairs[$id] = $product->name;
 
@@ -2328,6 +2332,8 @@ class execution extends control
         $this->view->extra        = $extra;
         $this->view->object       = $object;
         $this->view->orderBy      = $orderBy;
+        $this->view->gradeGroup   = $gradeGroup;
+        $this->view->showGrade    = $this->config->edition == 'ipd';
         $this->view->productPairs = $productPairs;
         $this->view->allStories   = empty($allStories) ? $allStories : $allStories[$pageID - 1];
         $this->view->pager        = $pager;
@@ -2338,7 +2344,6 @@ class execution extends control
         $this->view->branchGroups = $branchGroups;
         $this->view->browseLink   = $browseLink;
 
-        /* NOT used in zin. */
         $this->view->project      = $project;
         $this->view->executionID  = $object->id;
         $this->view->projectID    = $object->id;
@@ -3045,6 +3050,9 @@ class execution extends control
      */
     public function treeStory(int $storyID, int $version = 0)
     {
+        $this->loadModel('requirement');
+        $this->loadModel('epic');
+
         $story   = $this->loadModel('story')->getById($storyID, $version, true);
         $product = $this->dao->findById($story->product)->from(TABLE_PRODUCT)->fields('name, id, `type`, shadow')->fetch();
 
@@ -3150,7 +3158,14 @@ class execution extends control
         $enterTime      = date('Y-m-d H:i:s', $enterTime);
         if(in_array(true, array(empty($lastEditedTime), strtotime($lastEditedTime) < 0, $lastEditedTime > $enterTime, $groupBy != 'default', !empty($searchValue))))
         {
-            $kanbanGroup = $from == 'taskkanban' ? $this->kanban->getExecutionKanban($executionID, $browseType, $groupBy, $searchValue, $orderBy) : $this->kanban->getRDKanban($executionID, $browseType, $orderBy, 0, $groupBy, $searchValue);
+            if($from == 'taskkanban')
+            {
+                list($kanbanGroup, $links) = $this->kanban->getExecutionKanban($executionID, $browseType, $groupBy, $searchValue, $orderBy);
+            }
+            else
+            {
+                $kanbanGroup = $this->kanban->getRDKanban($executionID, $browseType, $orderBy, 0, $groupBy, $searchValue);
+            }
             return print(json_encode($kanbanGroup));
         }
     }
diff --git a/module/execution/css/kanban.ui.css b/module/execution/css/kanban.ui.css
index cb21e7f33c..61c44d431d 100644
--- a/module/execution/css/kanban.ui.css
+++ b/module/execution/css/kanban.ui.css
@@ -2,3 +2,4 @@
 .kanban-header-title .text-danger {color:rgb(255, 93, 93); opacity: 1;}
 .as-subtitle {opacity: 0.5; text-wrap: nowrap; font-weight: 700;}
 .is-collapsed .icon-angle-top:before { content: "\e313"; }
+.card.selected .child-item .icon {color: var(--color-primary-500)}
diff --git a/module/execution/css/taskkanban.ui.css b/module/execution/css/taskkanban.ui.css
index f6e45d97e0..f80c2f69cf 100644
--- a/module/execution/css/taskkanban.ui.css
+++ b/module/execution/css/taskkanban.ui.css
@@ -3,3 +3,4 @@
 .toolbar .kanbanSetting.btn-link .caret{display: none;}
 .dropdown-menu .menu-divider a{display:none;}
 .as-subtitle {opacity: 0.5; text-wrap: nowrap; font-weight: 700;}
+.card.selected .child-item .icon {color: var(--color-primary-500)}
diff --git a/module/execution/css/view.ui.css b/module/execution/css/view.ui.css
index db00d686cd..573ce2fce6 100644
--- a/module/execution/css/view.ui.css
+++ b/module/execution/css/view.ui.css
@@ -8,5 +8,4 @@
 
 .actions-menu {bottom: 12px;}
 #mainContent {margin-bottom: 60px;}
-
 #mainContent .desc-box {max-height: 6rem;}
diff --git a/module/execution/js/kanban.ui.js b/module/execution/js/kanban.ui.js
index 98dd4f1712..7a69cbac4a 100644
--- a/module/execution/js/kanban.ui.js
+++ b/module/execution/js/kanban.ui.js
@@ -8,6 +8,7 @@ window.getLane = function(lane)
 window.getCol = function(col)
 {
     /* 计算WIP。*/
+    if(ERURColumn.includes(col.type)) return;
     const limit = col.limit == -1 ? "<i class='icon icon-md icon-infinite'></i>" : col.limit;
     const cards = col.cards;
 
@@ -91,7 +92,7 @@ window.buildColActions = function(col)
     let actions = [];
 
     if(col.actionList && col.actionList.includes('setColumn')) actions.push({text: kanbanLang.setColumn, url: $.createLink('kanban', 'setColumn', `columnID=${col.id}&executionID=${executionID}&from=RDKanban`), 'data-toggle': 'modal', 'icon': 'edit'});
-    if(col.actionList && col.actionList.includes('setWIP')) actions.push({text: kanbanLang.setWIP, url: $.createLink('kanban', 'setWIP', `columnID=${col.id}&executionID=${executionID}&from=RDKanban`), 'data-toggle': 'modal', 'icon': 'alert'});
+    if(col.actionList && col.actionList.includes('setWIP') && !ERURColumn.includes(col.type)) actions.push({text: kanbanLang.setWIP, url: $.createLink('kanban', 'setWIP', `columnID=${col.id}&executionID=${executionID}&from=RDKanban`), 'data-toggle': 'modal', 'icon': 'alert'});
 
     return actions;
 }
@@ -139,7 +140,7 @@ window.getItem = function(info)
     const avatar = renderAvatar(info.item);
 
     info.item.titleAttrs = {};
-    if(info.item.cardType == 'story')
+    if(['story', 'parentStory'].includes(info.item.cardType))
     {
         info.item.icon = 'product';
         if(priv.canViewStory)
@@ -208,9 +209,14 @@ window.getItem = function(info)
 window.renderAvatar = function(item)
 {
     let assignLink = '';
-    if(item.cardType == 'story' && priv.canAssignStory) assignLink = $.createLink('story', 'assignTo', "id=" + item.id);
-    if(item.cardType == 'bug' && priv.canAssignBug) assignLink = $.createLink('bug', 'assignTo', "id=" + item.id);
-    if(item.cardType == 'task' && priv.canAssignTask) assignLink = $.createLink('task', 'assignTo', "executionID=" + executionID + "&id=" + item.id);
+    if(item.cardType == 'parentStory')
+    {
+        return '<div class="avatar child-item rounded-full size-xs ml-1" title="' + storyLang.children + '" style="background: #ccc; color: #fff; cursor: pointer;"><i class="icon icon-split"></i></div>';
+    }
+
+    if(item.cardType == 'story' && priv.canAssignStory)             assignLink = $.createLink('story', 'assignTo', "id=" + item.id);
+    if(item.cardType == 'bug' && priv.canAssignBug)                 assignLink = $.createLink('bug', 'assignTo', "id=" + item.id);
+    if(item.cardType == 'task' && priv.canAssignTask)               assignLink = $.createLink('task', 'assignTo', "executionID=" + executionID + "&id=" + item.id);
 
     if(item.assignedTo.length == 0)
     {
@@ -227,9 +233,10 @@ window.renderAvatar = function(item)
 window.getItemActions = function(item)
 {
     let actions = [];
-    if(item.cardType == 'story')     actions = buildStoryActions(item);
-    else if(item.cardType == 'bug')  actions = buildBugActions(item);
-    else if(item.cardType == 'task') actions = buildTaskActions(item);
+    if(item.cardType == 'story')            actions = buildStoryActions(item);
+    else if(item.cardType == 'parentStory') actions = buildParentStoryActions(item);
+    else if(item.cardType == 'bug')         actions = buildBugActions(item);
+    else if(item.cardType == 'task')        actions = buildTaskActions(item);
 
     if(actions.length)
     {
@@ -242,6 +249,19 @@ window.getItemActions = function(item)
     }
 }
 
+window.buildParentStoryActions = function(item)
+{
+    let actions = [];
+
+    if(priv.canEditStory) actions.push({text: storyLang.edit, icon: 'edit', url: $.createLink('story', 'edit', 'storyID=' + item.id + '&kanbanGroup=' + groupBy), 'data-toggle': 'modal', 'data-size': 'lg'});
+    if(priv.canChangeStory && item.status == 'active') actions.push({text: storyLang.change, icon: 'change', url: $.createLink('story', 'change', 'storyID=' + item.id), 'data-toggle': 'modal', 'data-size': 'lg'});
+    if(priv.canActivateStory && item.status == 'closed') actions.push({text: executionLang.activate, icon: 'magic', url: $.createLink('story', 'activate', 'storyID=' + item.id), 'data-toggle': 'modal', 'data-size': 'lg'});
+    if(priv.canUnlinkStory) actions.push({text: executionLang.unlinkStory, icon: 'unlink', url: $.createLink('execution', 'unlinkStory', 'executionID=' + executionID + '&storyID=' + item.id + '&confirm=no&from=' + '&laneID=' + item.lane + '&columnID=' + item.column), 'innerClass' : 'ajax-submit'});
+    if(priv.canDeleteStory) actions.push({text: storyLang.delete, icon: 'trash', url: $.createLink('story', 'delete', 'storyID=' + item.id), 'innerClass': 'ajax-submit'});
+
+    return actions;
+}
+
 window.buildStoryActions = function(item)
 {
     let actions = [];
@@ -345,10 +365,11 @@ if(!window.kanbanDropRules)
         {
             backlog: ['ready', 'backlog'],
             ready: ['backlog', 'ready'],
-            tested: ['verified'],
-            verified: ['tested', 'released'],
+            tested: ['verified', 'rejected'],
+            verified: ['tested', 'pending', 'released'],
+            pending: ['verified', 'released'],
             released: ['verified', 'closed'],
-            closed: ['released'],
+            closed: ['released']
         },
         bug:
         {
diff --git a/module/execution/js/linkstory.ui.js b/module/execution/js/linkstory.ui.js
index 9cd5297107..015ccb29bc 100644
--- a/module/execution/js/linkstory.ui.js
+++ b/module/execution/js/linkstory.ui.js
@@ -35,11 +35,12 @@ window.onRenderLinkStoryCell = function(result, {row, col})
 {
     if(col.name == 'title')
     {
-        if(row.data.parent > 0)
-        {
-            html = "<span class='label gray-pale rounded-xl clip'>"+ childrenAB +"</span> ";
-            result.unshift({html});
-        }
+        const story = row.data;
+        const gradeLabel = (showGrade || story.grade >= 2) ? gradeGroup[story.type][story.grade] : '';
+
+        let html = '';
+        if(gradeLabel) html += "<span class='label gray-pale rounded-xl clip'>" + gradeLabel + "</span> ";
+        if(html) result.unshift({html});
     }
 
     if(col.name !== 'branch')
diff --git a/module/execution/js/story.ui.js b/module/execution/js/story.ui.js
index 9ee28e9c69..f1121c286e 100644
--- a/module/execution/js/story.ui.js
+++ b/module/execution/js/story.ui.js
@@ -122,19 +122,25 @@ window.setStatistics = function(element, checkedIdList)
     let SRTotal         = 0;
     let total           = 0;
 
+    let rateCount = 0;
     checkedIdList.forEach((rowID) => {
-        const story  = element.getRowInfo(rowID);
+        const story = element.getRowInfo(rowID);
         if(storyType == 'requirement' && story.data.type == 'story') SRTotal += 1;
         if(storyType == story.data.type) total += 1;
         if(story)
         {
             checkedEstimate += parseFloat(story.data.estimate);
             if(cases[rowID]) checkedCase += 1;
+            if(story.data.isParent == '0') rateCount += 1;
         }
     })
 
-    const rate = Math.round(checkedCase / checkedTotal * 10000) / 100 + '' + '%';
-    return {html: checkedSummary.replace('%total%', total).replace('%estimate%', checkedEstimate).replace('%rate%', rate).replace('%SRTotal%', SRTotal)};
+    const rate = rateCount ? Math.round(checkedCase / rateCount * 10000) / 100 + '' + '%' : 0 + '%';
+    return {
+        html: checkedSummary.replace('%total%', checkedTotal)
+            .replace('%estimate%', checkedEstimate)
+            .replace('%rate%', rate)
+    };
 }
 
 window.renderStoryCell = function(result, info)
@@ -143,10 +149,9 @@ window.renderStoryCell = function(result, info)
     if(info.col.name == 'title' && result)
     {
         let html = '';
-
-        if(story.parentName != undefined && story.parent > 0 && ($.cookie.get('tab') == 'execution' || ($.cookie.get('tab') == 'project' && hasProduct))) html += story.parentName + ' / ';
+        let gradeLabel = gradeGroup[story.type][story.grade];
         if(typeof modulePairs[story.moduleID] != 'undefined') html += "<span class='label gray-pale rounded-xl clip'>" + modulePairs[story.moduleID] + "</span> ";
-        if(story.parent > 0) html += "<span class='label gray-pale rounded-xl'>" + (storyType == 'requirement' ? 'SR' : childrenAB) + "</span>";
+        if(gradeLabel) html += "<span class='label gray-pale rounded-xl'>" + gradeLabel + "</span>";
         if(html) result.unshift({html});
     }
     if(info.col.name == 'status' && result)
@@ -155,3 +160,12 @@ window.renderStoryCell = function(result, info)
     }
     return result;
 };
+
+window.setShowGrades = function()
+{
+    const showGrades = $('[name^=showGrades]').zui('picker').$.state.value;
+    if(oldShowGrades == showGrades) return;
+
+    const link = $.createLink('product', 'ajaxSetShowGrades', 'module=execution&showGrades=' + showGrades);
+    $.get(link, function() { loadCurrentPage(); });
+}
diff --git a/module/execution/js/taskkanban.ui.js b/module/execution/js/taskkanban.ui.js
index 59822b9edf..74d7f1ff79 100644
--- a/module/execution/js/taskkanban.ui.js
+++ b/module/execution/js/taskkanban.ui.js
@@ -6,12 +6,13 @@ const kanbanDropRules =
 {
     story:
     {
-        'backlog': ['ready'],
-        'ready': ['backlog'],
-        'tested': ['verified'],
-        'verified': ['tested', 'released'],
-        'released': ['verified', 'closed'],
-        'closed': ['released'],
+        backlog: ['ready', 'backlog'],
+        ready: ['backlog', 'ready'],
+        tested: ['verified', 'rejected'],
+        verified: ['tested', 'pending', 'released'],
+        pending: ['verified', 'released'],
+        released: ['verified', 'closed'],
+        closed: ['released']
     },
     bug:
     {
@@ -101,6 +102,7 @@ window.getLaneActions = function(lane)
 window.getCol = function(col)
 {
     /* 计算WIP。*/
+    if(ERURColumn.includes(col.type)) return;
     const limit = col.limit == -1 ? "<i class='icon icon-md icon-infinite'></i>" : col.limit;
     const cards = col.cards;
 
@@ -174,8 +176,8 @@ window.buildColActions = function(col)
 {
     let actions = [];
 
-    if(priv.canEditName && col.actionList && col.actionList.includes('setColumn')) actions.push({text: kanbanLang.setColumn, url: $.createLink('kanban', 'setColumn', `columnID=${col.id}&executionID=${executionID}&from=RDKanban`), 'data-toggle': 'modal', 'icon': 'edit'});
-    if(priv.canSetWIP   && col.actionList && col.actionList.includes('setWIP'))    actions.push({text: kanbanLang.setWIP, url: $.createLink('kanban', 'setWIP', `columnID=${col.id}&executionID=${executionID}&from=RDKanban`), 'data-toggle': 'modal', 'icon': 'alert'});
+    if(priv.canEditName && col.actionList && col.actionList.includes('setColumn'))                                actions.push({text: kanbanLang.setColumn, url: $.createLink('kanban', 'setColumn', `columnID=${col.id}&executionID=${executionID}&from=RDKanban`), 'data-toggle': 'modal', 'icon': 'edit'});
+    if(priv.canSetWIP   && col.actionList && col.actionList.includes('setWIP') && !ERURColumn.includes(col.type)) actions.push({text: kanbanLang.setWIP, url: $.createLink('kanban', 'setWIP', `columnID=${col.id}&executionID=${executionID}&from=RDKanban`), 'data-toggle': 'modal', 'icon': 'alert'});
 
     return actions;
 }
@@ -217,7 +219,14 @@ window.getItem = function(info)
     if(info.laneInfo.type == 'story' && priv.canAssignStory) assignLink = $.createLink('story', 'assignto', 'id=' + info.item.id + '&kanbanGroup=default&from=taskkanban');
     if(info.laneInfo.type == 'task' && priv.canAssignTask)   assignLink = $.createLink('task', 'assignto', 'executionID=' + executionID + '&id=' + info.item.id + '&kanbanGroup=default&from=taskkanban');
     if(info.laneInfo.type == 'bug' && priv.canAssignBug)     assignLink = $.createLink('bug', 'assignto', 'id=' + info.item.id + '&kanbanGroup=default&from=taskkanban');
-    if(assignLink) avatar = "<a href='" + assignLink + "' data-toggle='modal'>" + avatar + "</a>";
+    if(assignLink)
+    {
+        avatar = "<a href='" + assignLink + "' data-toggle='modal'>" + avatar + "</a>";
+    }
+    else if(['parentStory', 'requirement', 'epic'].includes(info.laneInfo.type))
+    {
+        avatar = '<div class="avatar child-item rounded-full size-xs ml-1" title="' + storyLang.children + '" style="background: #ccc; color: #fff; cursor: pointer;"><i class="icon icon-split"></i></div>';
+    }
 
     const content = `
       <div class='flex items-center'>
@@ -233,7 +242,7 @@ window.getItem = function(info)
         info.item.title = info.item.title.replaceAll(searchValue, "<span class='text-danger'>" + searchValue + "</span>");
         info.item.title = {html: info.item.title};
     }
-    info.item.titleUrl   = info.laneInfo.type == 'story' ? $.createLink('execution', 'storyView', `id=${info.item.id}&executionID=${executionID}`) : $.createLink(info.laneInfo.type, 'view', `id=${info.item.id}`);
+    info.item.titleUrl   = ['story', 'epic', 'requirement', 'parentStory'].includes(info.laneInfo.type) ? $.createLink('execution', 'storyView', `id=${info.item.id}&executionID=${executionID}`) : $.createLink(info.laneInfo.type, 'view', `id=${info.item.id}`);
     info.item.titleAttrs = {'data-toggle': 'modal', 'data-size': 'lg', 'title': info.item.title, 'class': 'card-title clip'};
 
     info.item.content = {html: content};
diff --git a/module/execution/lang/de.php b/module/execution/lang/de.php
index bcc0f33742..b463dca937 100644
--- a/module/execution/lang/de.php
+++ b/module/execution/lang/de.php
@@ -281,7 +281,7 @@ $lang->execution->importPlanStories         = 'Verknüpfe Story aus Plan';
 $lang->execution->importBug                 = 'Importiere Bugs';
 $lang->execution->tree                      = 'Baum';
 $lang->execution->treeTask                  = 'Aufgabe anzeigen';
-$lang->execution->treeStory                 = 'Story anzeigen';
+$lang->execution->treeStory                 = 'Only Stories';
 $lang->execution->treeViewTask              = 'Tree View Task';
 $lang->execution->treeViewStory             = 'Tree View Story';
 $lang->execution->storyKanban               = 'Story Kanban';
@@ -411,7 +411,6 @@ $lang->execution->accessDenied                 = "Zugriff zu {$lang->executionCo
 $lang->execution->tips                         = 'Hinweis';
 $lang->execution->afterInfo                    = "%s wurde erstellt. Als nächstes können Sie ";
 $lang->execution->setTeam                      = 'Team setzen';
-$lang->execution->linkStory                    = 'Link Stories';
 $lang->execution->createTask                   = 'Aufgaben erstellen';
 $lang->execution->goback                       = "Zurückkehren";
 $lang->execution->gobackExecution              = "Go Back {$lang->execution->common} List";
@@ -579,7 +578,7 @@ $lang->execution->treeLevel = array();
 $lang->execution->treeLevel['all']   = 'Alle aufklappen';
 $lang->execution->treeLevel['root']  = 'Alle zuklappen';
 $lang->execution->treeLevel['task']  = 'Aufgabe anzeigen';
-$lang->execution->treeLevel['story'] = 'Story anzeigen';
+$lang->execution->treeLevel['story'] = 'Only Stories';
 
 $lang->execution->action = new stdclass();
 $lang->execution->action->opened               = '$date, created by <strong>$actor</strong>. $extra' . "\n";
diff --git a/module/execution/lang/en.php b/module/execution/lang/en.php
index 0d3d2b3f65..0bc6dd130e 100644
--- a/module/execution/lang/en.php
+++ b/module/execution/lang/en.php
@@ -411,7 +411,6 @@ $lang->execution->accessDenied                 = "Your access to {$lang->executi
 $lang->execution->tips                         = 'Note';
 $lang->execution->afterInfo                    = "%s is created. Next you can ";
 $lang->execution->setTeam                      = 'Set Team';
-$lang->execution->linkStory                    = 'Link Story';
 $lang->execution->createTask                   = 'Create Task';
 $lang->execution->goback                       = "Go Back Task List";
 $lang->execution->gobackExecution              = "Go Back {$lang->execution->common} List";
diff --git a/module/execution/lang/fr.php b/module/execution/lang/fr.php
index eeb167f974..4c6c553cb2 100644
--- a/module/execution/lang/fr.php
+++ b/module/execution/lang/fr.php
@@ -411,7 +411,6 @@ $lang->execution->accessDenied                 = "Votre accès au {$lang->execut
 $lang->execution->tips                         = 'Note';
 $lang->execution->afterInfo                    = "Le %s a été créé avec succès ! Ensuite vous pouvez ";
 $lang->execution->setTeam                      = "Composer l'Equipe";
-$lang->execution->linkStory                    = 'Stories liées';
 $lang->execution->createTask                   = 'Créer des Tâches';
 $lang->execution->goback                       = "Revenir en arrière";
 $lang->execution->gobackExecution              = "Go Back {$lang->execution->common} List";
diff --git a/module/execution/lang/zh-cn.php b/module/execution/lang/zh-cn.php
index ef279fdc8f..06433e9165 100644
--- a/module/execution/lang/zh-cn.php
+++ b/module/execution/lang/zh-cn.php
@@ -239,7 +239,7 @@ $lang->execution->team                      = '团队成员';
 $lang->execution->doc                       = '文档列表';
 $lang->execution->doclib                    = '文档库';
 $lang->execution->manageProducts            = '关联' . $lang->productCommon;
-$lang->execution->linkStory                 = "关联{$lang->SRCommon}";
+$lang->execution->linkStory                 = "关联需求";
 $lang->execution->linkStoryByPlan           = "按照计划关联";
 $lang->execution->linkPlan                  = "关联计划";
 $lang->execution->unlinkStoryTasks          = "未关联{$lang->SRCommon}任务";
@@ -281,7 +281,7 @@ $lang->execution->importPlanStories         = "按计划关联{$lang->SRCommon}"
 $lang->execution->importBug                 = '导入Bug';
 $lang->execution->tree                      = '树状图';
 $lang->execution->treeTask                  = '只看任务';
-$lang->execution->treeStory                 = "只看{$lang->SRCommon}";
+$lang->execution->treeStory                 = "仅需求";
 $lang->execution->treeViewTask              = '树状图查看任务';
 $lang->execution->treeViewStory             = "树状图查看{$lang->SRCommon}";
 $lang->execution->storyKanban               = "{$lang->SRCommon}看板";
@@ -359,11 +359,11 @@ $lang->execution->groupSummaryAB       = "<div>总任务 <strong>%s : </strong><
 $lang->execution->wbs                  = "分解任务";
 $lang->execution->batchWBS             = "批量分解";
 $lang->execution->howToUpdateBurn      = "<a href='https://api.zentao.net/goto.php?item=burndown&lang=zh-cn' target='_blank' title='如何更新燃尽图？'>帮助 <i class='icon icon-help text-gray'></i></a>";
-$lang->execution->whyNoStories         = "看起来没有{$lang->SRCommon}可以关联。请检查下{$lang->executionCommon}关联的{$lang->productCommon}中有没有{$lang->SRCommon}，而且要确保它们已经审核通过。";
-$lang->execution->projectNoStories     = "看起来没有{$lang->SRCommon}可以关联。请检查下{$lang->projectCommon}中有没有{$lang->SRCommon}，而且要确保它们已经审核通过。";
-$lang->execution->productStories       = "{$lang->executionCommon}关联的{$lang->SRCommon}是{$lang->productCommon}{$lang->SRCommon}的子集，并且只有评审通过的{$lang->SRCommon}才能关联。请<a href='%s'>关联{$lang->SRCommon}</a>。";
-$lang->execution->haveBranchDraft      = "导入完成！有%s条非激活状态或不是{$lang->executionCommon}关联分支的{$lang->SRCommon}无法导入";
-$lang->execution->haveDraft            = "导入完成！有%s条非激活状态的{$lang->SRCommon}无法导入";
+$lang->execution->whyNoStories         = "看起来没有需求可以关联。请检查下{$lang->executionCommon}关联的{$lang->productCommon}中有没有需求，而且要确保它们已经审核通过。";
+$lang->execution->projectNoStories     = "看起来没有需求可以关联。请检查下{$lang->projectCommon}中有没有需求，而且要确保它们已经审核通过。";
+$lang->execution->productStories       = "{$lang->executionCommon}关联的{$lang->SRCommon}是{$lang->productCommon}需求的子集，并且只有评审通过的{$lang->SRCommon}才能关联。请<a href='%s'>关联{$lang->SRCommon}</a>。";
+$lang->execution->haveBranchDraft      = "导入完成！有%s条非激活状态或不是{$lang->executionCommon}关联分支的需求无法导入";
+$lang->execution->haveDraft            = "导入完成！有%s条非激活状态的需求无法导入";
 $lang->execution->doneExecutions       = '已结束';
 $lang->execution->selectDept           = '选择部门';
 $lang->execution->selectDeptTitle      = '选择一个部门的成员';
@@ -411,7 +411,6 @@ $lang->execution->accessDenied                 = "您无权访问该{$lang->exec
 $lang->execution->tips                         = '提示';
 $lang->execution->afterInfo                    = "%s添加成功，您现在可以进行以下操作：";
 $lang->execution->setTeam                      = '设置团队';
-$lang->execution->linkStory                    = "关联{$lang->SRCommon}";
 $lang->execution->createTask                   = '创建任务';
 $lang->execution->goback                       = "返回任务列表";
 $lang->execution->gobackExecution              = "返回{$lang->execution->common}列表";
@@ -579,7 +578,7 @@ $lang->execution->treeLevel = array();
 $lang->execution->treeLevel['all']   = '全部展开';
 $lang->execution->treeLevel['root']  = '全部折叠';
 $lang->execution->treeLevel['task']  = '全部显示';
-$lang->execution->treeLevel['story'] = "只看{$lang->SRCommon}";
+$lang->execution->treeLevel['story'] = "仅需求";
 
 $lang->execution->action = new stdclass();
 $lang->execution->action->opened               = '$date, 由 <strong>$actor</strong> 创建。$extra' . "\n";
diff --git a/module/execution/model.php b/module/execution/model.php
index bc9eaa8fc8..d5086c41b6 100755
--- a/module/execution/model.php
+++ b/module/execution/model.php
@@ -77,7 +77,6 @@ class executionModel extends model
 
                 if(in_array($execution->attribute, array('request', 'review')))
                 {
-                    $features['story'] = false;
                     $features['plan'] = false;
                 }
             }
@@ -157,7 +156,6 @@ class executionModel extends model
 
         /* Set stroy navigation for no-product project. */
         $this->loadModel('project')->setNoMultipleMenu($executionID);
-        if(isset($this->lang->execution->menu->storyGroup)) unset($this->lang->execution->menu->storyGroup);
         if(isset($this->lang->execution->menu->story['dropMenu']) && $this->app->getMethodName() == 'storykanban')
         {
             $this->lang->execution->menu->story['link']            = str_replace(array($this->lang->common->story, 'story'), array($this->lang->SRCommon, 'storykanban'), $this->lang->execution->menu->story['link']);
@@ -2309,7 +2307,7 @@ class executionModel extends model
         $this->config->product->search['actionURL'] = $actionURL;
         $this->config->product->search['queryID']   = $queryID;
 
-        $this->config->product->search['fields']['title'] = str_replace($this->lang->SRCommon, $this->lang->SRCommon, $this->lang->story->title);
+        $this->config->product->search['fields']['title']             = $this->lang->story->name;
         $this->config->product->search['params']['product']['values'] = $productPairs + array('all' => $this->lang->product->allProductsOfProject);
         $this->config->product->search['params']['plan']['values']    = $planPairs;
         $this->config->product->search['params']['module']['values']  = $modules;
@@ -2339,6 +2337,20 @@ class executionModel extends model
             }
         }
 
+        $gradePairs = array();
+        $gradeList  = $this->loadModel('story')->getGradeList('');
+        $storyTypes = isset($project->storyType) ? $project->storyType : 'story';
+        if(!($execution->type == 'stage' && in_array($execution->attribute, array('mix', 'request', 'design')))) $storyTypes = 'story';
+        foreach($gradeList as $grade)
+        {
+            if(strpos($storyTypes, $grade->type) === false) continue;
+            $key = (string)$grade->type . (string)$grade->grade;
+            $gradePairs[$key] = $grade->name;
+        }
+        asort($gradePairs);
+
+        $this->config->product->search['params']['grade']['values'] = $gradePairs;
+
         $this->loadModel('search')->setSearchParams($this->config->product->search);
     }
 
@@ -2820,11 +2832,13 @@ class executionModel extends model
         $versions         = $this->loadModel('story')->getVersions($stories);
         $linkedStories    = $this->dao->select('story,`order`')->from(TABLE_PROJECTSTORY)->where('project')->eq($executionID)->orderBy('order_desc')->fetchPairs('story', 'order');
         $lastOrder        = (int)reset($linkedStories);
-        $storyList        = $this->dao->select('id, status, branch, product')->from(TABLE_STORY)->where('id')->in(array_values($stories))->fetchAll('id');
+        $storyList        = $this->dao->select('id, status, branch, product, type')->from(TABLE_STORY)->where('id')->in(array_values($stories))->fetchAll('id');
         $execution        = $this->fetchByID($executionID);
         $notAllowedStatus = $this->app->rawMethod == 'batchcreate' ? 'closed' : 'draft,reviewing,closed';
         $laneID           = isset($output['laneID']) ? $output['laneID'] : 0;
 
+        $project = $execution->type == 'project' ? $execution : $this->loadModel('project')->fetchById($execution->project);
+
         foreach($stories as $storyID)
         {
             if(isset($linkedStories[$storyID])) continue;
@@ -2833,11 +2847,14 @@ class executionModel extends model
             $storyID = (int)$storyID;
             $story   = zget($storyList, $storyID, '');
             if(empty($story)) continue;
+            if(strpos($project->storyType, "$story->type") === false) continue;
+
+            if($execution->multiple && $story->type != 'story' && (!($execution->type == 'stage' && in_array($execution->attribute, array('mix', 'request', 'design'))) && $execution->type != 'project')) continue;
             if(!empty($lanes[$storyID])) $laneID = $lanes[$storyID];
 
             $columnID = $this->kanban->getColumnIDByLaneID((int)$laneID, 'backlog');
             if(empty($columnID)) $columnID = isset($output['columnID']) ? $output['columnID'] : 0;
-            if(!empty($laneID) and !empty($columnID)) $this->kanban->addKanbanCell($executionID, (int)$laneID, (int)$columnID, 'story', (string)$storyID);
+            if(!empty($laneID) and !empty($columnID)) $this->kanban->addKanbanCell($executionID, (int)$laneID, (int)$columnID, $storyType, (string)$storyID);
 
             $data = new stdclass();
             $data->project = $executionID;
@@ -2857,7 +2874,7 @@ class executionModel extends model
             if($storyType == 'requirement' and $this->config->edition == 'ipd') $this->dao->update(TABLE_STORY)->set('status')->eq('developing')->where('id')->eq($storyID)->exec();
         }
 
-        if(!isset($output['laneID']) or !isset($output['columnID'])) $this->kanban->updateLane($executionID, 'story');
+        if(!isset($output['laneID']) or !isset($output['columnID'])) $this->kanban->updateLane($executionID);
         return true;
     }
 
@@ -2907,8 +2924,9 @@ class executionModel extends model
     {
         $stories   = array();
         $plans     = $this->dao->select('product, plan')->from(TABLE_PROJECTPRODUCT)->where('project')->eq($executionID)->fetchPairs('product', 'plan');
-        $projectID = $this->dao->select('project')->from(TABLE_EXECUTION)->where('id')->eq($executionID)->fetch('project');
-        $this->session->set('project', $projectID);
+        $execution = $this->fetchByID($executionID);
+        $project   = $this->fetchByID($execution->project);
+        $this->session->set('project', $project->id);
 
         $this->loadModel('story');
         $executionProducts = $this->loadModel('project')->getBranchesByProject($executionID);
@@ -2925,13 +2943,15 @@ class executionModel extends model
 
                 foreach($planStories as $id => $story)
                 {
-                    if($story->status != 'active' || (!empty($story->branch) && !empty($executionBranches) && !isset($executionBranches[$story->branch]))) unset($planStories[$id]);
+                    if(!in_array($story->status, array('active', 'launched')) || (!empty($story->branch) && !empty($executionBranches) && !isset($executionBranches[$story->branch]))) unset($planStories[$id]);
+                    if(strpos($project->storyType, $story->type) === false) unset($planStories[$id]);
+                    if(!in_array($execution->attribute, array('mix', 'request', 'design')) && $story->type != 'story') unset($planStories[$id]);
                 }
                 $stories = array_merge($stories, array_keys($planStories));
             }
         }
 
-        $this->linkStory($projectID, $stories);
+        $this->linkStory($project->id, $stories);
         $this->linkStory($executionID, $stories);
 
         return true;
@@ -4584,10 +4604,11 @@ class executionModel extends model
      *
      * @param  array $trees
      * @param  bool  $hasProduct
+     * @param  array $gradeGroup
      * @access pubic
      * @return array
      */
-    public function buildTree(array $trees, bool $hasProduct = true): array
+    public function buildTree(array $trees, bool $hasProduct = true, array $gradeGroup = array()): array
     {
         $treeData = array();
         foreach($trees as $index => $tree)
@@ -4611,9 +4632,29 @@ class executionModel extends model
                     break;
                 case 'story':
                     $this->app->loadLang('story');
-                    $treeData[$index]['url']    = helper::createLink('execution', 'treeStory', "taskID={$tree->storyId}");
+                    $gradePairs = zget($gradeGroup, $tree->type, array());
+                    $grade      = zget($gradePairs, $tree->grade, $tree->grade);
+                    $treeData[$index]['url']     = helper::createLink('execution', 'treeStory', "taskID={$tree->storyId}");
                     $treeData[$index]['content'] = array(
-                        'html' => "<div class='tree-link'><span class='label gray-pale rounded-full'>{$this->lang->story->common}</span><span class='ml-4'>{$tree->storyId}</span><span class='title text-primary ml-4' title='{$tree->title}'>{$tree->title}</span>" . $assigedToHtml . '</div>',
+                        'html' => "<div class='tree-link'><span class='label gray-pale rounded-full'>{$grade->name}</span><span class='ml-4'>{$tree->storyId}</span><span class='title text-primary ml-4' title='{$tree->title}'>{$tree->title}</span>" . $assigedToHtml . '</div>',
+                    );
+                    break;
+                case 'requirement':
+                    $this->app->loadLang('requirement');
+                    $gradePairs = zget($gradeGroup, $tree->type, array());
+                    $grade      = zget($gradePairs, $tree->grade, $tree->grade);
+                    $treeData[$index]['url']     = helper::createLink('execution', 'treeStory', "taskID={$tree->storyId}");
+                    $treeData[$index]['content'] = array(
+                        'html' => "<div class='tree-link'><span class='label gray-pale rounded-full'>{$grade->name}</span><span class='ml-4'>{$tree->storyId}</span><span class='title text-primary ml-4' title='{$tree->title}'>{$tree->title}</span>" . $assigedToHtml . '</div>',
+                    );
+                    break;
+                case 'epic':
+                    $this->app->loadLang('epic');
+                    $gradePairs = zget($gradeGroup, $tree->type, array());
+                    $grade      = zget($gradePairs, $tree->grade, $tree->grade);
+                    $treeData[$index]['url']     = helper::createLink('execution', 'treeStory', "taskID={$tree->storyId}");
+                    $treeData[$index]['content'] = array(
+                        'html' => "<div class='tree-link'><span class='label gray-pale rounded-full'>{$grade->name}</span><span class='ml-4'>{$tree->storyId}</span><span class='title text-primary ml-4' title='{$tree->title}'>{$tree->title}</span>" . $assigedToHtml . '</div>',
                     );
                     break;
                 case 'branch':
@@ -4632,7 +4673,7 @@ class executionModel extends model
             if(isset($tree->children))
             {
                 if($tree->type == 'task') $treeData[$index]['content']['html'] = "<span class='title' title='{$tree->title}'>{$tree->title}</span>";
-                $treeData[$index]['items'] = $this->buildTree($tree->children, $hasProduct);
+                $treeData[$index]['items'] = $this->buildTree($tree->children, $hasProduct, $gradeGroup);
             }
         }
         return $treeData;
@@ -4852,6 +4893,7 @@ class executionModel extends model
         $executionData->project     = $projectID;
         $executionData->name        = $project->name;
         $executionData->grade       = 1;
+        $executionData->storyType   = $project->storyType;
         $executionData->begin       = $project->begin;
         $executionData->end         = $project->end;
         $executionData->status      = 'wait';
@@ -4911,6 +4953,7 @@ class executionModel extends model
         $postData = new stdclass();
         $postData->project   = $projectID;
         $postData->name      = $project->name;
+        $postData->storyType = $project->storyType;
         $postData->begin     = $project->begin;
         $postData->end       = $project->end;
         $postData->realBegan = $project->realBegan ? $project->realBegan : null;
diff --git a/module/execution/tao.php b/module/execution/tao.php
index 2c7bd11e65..082a3d9408 100644
--- a/module/execution/tao.php
+++ b/module/execution/tao.php
@@ -122,6 +122,7 @@ class executionTao extends executionModel
             ->andWhere('t2.deleted')->eq(0)
             ->andWhere('t2.status')->ne('closed')
             ->andWhere('t2.stage')->in('wait,planned,projected,developing')
+            ->andWhere('t2.isParent')->eq('0')
             ->groupBy('project')
             ->fetchAll('project');
 
@@ -369,23 +370,54 @@ class executionTao extends executionModel
         $node->type = 'module';
         $stories = isset($storyGroups[$node->root][$node->id]) ? $storyGroups[$node->root][$node->id] : array();
 
+        $node->children = $this->buildStoryTree($stories, $taskGroups, $executionID, $node);
+
+        /* Append for task of no story && node is not root. */
+        if($node->id && isset($taskGroups[$node->id][0]))
+        {
+            $taskItems = $this->formatTasksForTree($taskGroups[$node->id][0]);
+            $node->tasksCount = count($taskItems);
+            foreach($taskItems as $taskItem) $node->children[] = $taskItem;
+        }
+
+        return $node;
+    }
+
+    /**
+     * 构造需求树。
+     * Build story tree.
+     *
+     * @param  array     $stories
+     * @param  array     $taskGroups
+     * @param  int       $executionID
+     * @param  object    $node
+     * @param  int       $parentID
+     * @access protected
+     * @return array
+     */
+    protected function buildStoryTree(array $stories, array $taskGroups, int $executionID, object $node, int $parentID = 0): array
+    {
         static $users, $avatarPairs;
         if(empty($users))       $users       = $this->loadModel('user')->getPairs('noletter');
         if(empty($avatarPairs)) $avatarPairs = $this->loadModel('user')->getAvatarPairs();
 
+        $children = array();
         foreach($stories as $story)
         {
+            if($story->parent != $parentID) continue;
+
             $avatarAccount = empty($story->assignedTo) ? zget($story, 'openedBy', '') : $story->assignedTo;
             $userAvatar    = zget($avatarPairs, $avatarAccount);
             $userAvatar    = $userAvatar && $avatarAccount != 'closed' ? "<img src='{$userAvatar}'/>" : strtoupper(mb_substr($avatarAccount, 0, 1, 'utf-8'));
 
             $storyItem = new stdclass();
-            $storyItem->type          = 'story';
+            $storyItem->type          = $story->type;
             $storyItem->id            = 'story' . $story->id;
             $storyItem->title         = $story->title;
             $storyItem->color         = $story->color;
             $storyItem->pri           = $story->pri;
             $storyItem->storyId       = $story->id;
+            $storyItem->grade         = $story->grade;
             $storyItem->openedBy      = zget($users, $story->openedBy);
             $storyItem->assignedTo    = zget($users, $story->assignedTo);
             $storyItem->url           = helper::createLink('execution', 'storyView', "storyID=$story->id&execution=$executionID");
@@ -400,19 +432,16 @@ class executionTao extends executionModel
                 $storyItem->tasksCount = count($taskItems);
                 $storyItem->children   = $taskItems;
             }
+            else
+            {
+                $storyItemChildren = $this->buildStoryTree($stories, $taskGroups, $executionID, $node, $story->id);
+                if($storyItemChildren) $storyItem->children = $storyItemChildren;
+            }
 
-            $node->children[] = $storyItem;
+            $children[] = $storyItem;
         }
 
-        /* Append for task of no story && node is not root. */
-        if($node->id && isset($taskGroups[$node->id][0]))
-        {
-            $taskItems = $this->formatTasksForTree($taskGroups[$node->id][0]);
-            $node->tasksCount = count($taskItems);
-            foreach($taskItems as $taskItem) $node->children[] = $taskItem;
-        }
-
-        return $node;
+        return $children;
     }
 
     /**
diff --git a/module/execution/ui/cfd.html.php b/module/execution/ui/cfd.html.php
index b989e5c4c1..705b085f36 100644
--- a/module/execution/ui/cfd.html.php
+++ b/module/execution/ui/cfd.html.php
@@ -89,7 +89,7 @@ featureBar
 );
 
 $index       = 0;
-$chartColors = array('#33B4DB', '#7ECF69', '#FFC73A', '#FF5A61', '#50C8D0', '#AF5AFF', '#4EA3FF', '#FF8C5A', '#6C73FF');
+$chartColors = array('#33B4DB', '#7ECF69', '#FFC73A', '#FF5A61', '#50C8D0', '#AF5AFF', '#4EA3FF', '#FF8C5A', '#6C73FF', '#B9E78C', '#E58CE7', '#EDE590', '#CFB5FA');
 $chartSeries = array();
 if(!empty($chartData['line']))
 {
diff --git a/module/execution/ui/kanban.html.php b/module/execution/ui/kanban.html.php
index f6b5c7a4ad..7c03112fab 100644
--- a/module/execution/ui/kanban.html.php
+++ b/module/execution/ui/kanban.html.php
@@ -32,7 +32,7 @@ foreach($kanbanList as $current => $region)
             $group['maxLaneHeight'] = $execution->displayCards * 70;
         }
 
-        if(common::canModify('execution', $execution))
+        if($canModifyExecution)
         {
             $group['canDrop'] = jsRaw('window.canDrop');
             $group['onDrop']  = jsRaw('window.onDrop');
@@ -42,6 +42,7 @@ foreach($kanbanList as $current => $region)
     }
 
     $laneCount += isset($region['laneCount']) ? $region['laneCount'] : 0;
+    $links      = isset($region['links']) ? $region['links'] : array();
 }
 
 $operationMenu = array();
@@ -62,22 +63,23 @@ $canBatchCreateBug   = $features['qa'] && $canModifyExecution && common::hasPriv
 $canImportBug        = $features['qa'] && $canModifyExecution && common::hasPriv('execution', 'importBug') && $execution->multiple && $productID && $this->config->vision != 'lite';
 $hasBugButton        = $canCreateBug || $canBatchCreateBug;
 
-$canCreateStory      = $features['story'] && $canModifyExecution && common::hasPriv('story', 'create') && $productID && $this->config->vision != 'lite';
-$canBatchCreateStory = $features['story'] && $canModifyExecution && common::hasPriv('story', 'batchCreate') && $productID && $this->config->vision != 'lite';
-$canLinkStory        = $features['story'] && $canModifyExecution && common::hasPriv('execution', 'linkStory') && !empty($execution->hasProduct) && $productID && $this->config->vision != 'lite';
-$canLinkStoryByPlan  = $features['story'] && $canModifyExecution && common::hasPriv('execution', 'importplanstories') && !empty($project->hasProduct) && $productID && $this->config->vision != 'lite';
-$hasStoryButton      = $canCreateStory || $canBatchCreateStory || $canLinkStory || $canLinkStoryByPlan;
+$canCreateStory      = $features['story'] && $canModifyExecution && common::hasPriv('story', 'create') && common::canModify('execution', $execution) && $productID && $this->config->vision != 'lite';
+$canBatchCreateStory = $features['story'] && $canModifyExecution && common::hasPriv('story', 'batchCreate') && common::canModify('execution', $execution) && $productID && $this->config->vision != 'lite';
+
+$canLinkStory        = $features['story'] && $canModifyExecution && common::hasPriv('execution', 'linkStory') && !empty($execution->hasProduct) && common::canModify('execution', $execution) && $productID && $this->config->vision != 'lite';
+$canLinkStoryByPlan  = $features['story'] && $canModifyExecution && common::hasPriv('execution', 'importplanstories') && !empty($project->hasProduct) && common::canModify('execution', $execution) && $productID && $this->config->vision != 'lite';
+$hasStoryButton      = $features['story'] && ($canCreateStory || $canBatchCreateStory || $canLinkStory || $canLinkStoryByPlan);
 
 $hasTaskButton = $canCreateTask || $canBatchCreateTask || $canImportBug;
 
 $createMenu = array();
 $modal      = $productID ? 'modal' : false;
-if($canCreateStory) $createMenu[] = array('text' => $lang->story->create, 'url' => $productID ? helper::createLink('story', 'create', "productID=$productID&branch=0&moduleID=0&story=0&execution=$execution->id") : 'javascript:;', 'data-toggle' => $modal, 'data-size' => 'lg', 'data-on' => 'click', 'data-call' => 'checkProducts');
-if($canBatchCreateStory) $createMenu[] = array('text' => $lang->story->batchCreate, 'url' => $productID ? (count($productNames) > 1 ? '#batchCreateStory' : helper::createLink('story', 'batchCreate', "productID=$productID&branch=$branchID&moduleID=0&story=0&execution=$execution->id")) : 'javascript:;', 'data-toggle' => $modal, 'data-size' => 'lg', 'data-on' => 'click', 'data-call' => 'checkProducts');
-if($canLinkStory) $createMenu[] = array('text' => $lang->execution->linkStory, 'url' => $productID ? helper::createLink('execution', 'linkStory', "execution=$execution->id") : 'javascript:;', 'data-toggle' => $modal, 'data-size' => 'lg', 'data-on' => 'click', 'data-call' => 'checkProducts');
-if($canLinkStoryByPlan) $createMenu[] = array('text' => $lang->execution->linkStoryByPlan, 'url' => $productID ? "#linkStoryByPlan" : 'javascript:;', 'data-toggle' => $modal, 'data-size' => 'sm', 'data-on' => 'click', 'data-call' => 'checkProducts');
+if($canCreateStory)                   $createMenu[] = array('text' => $lang->story->create, 'url' => $productID ? helper::createLink('story', 'create', "productID=$productID&branch=0&moduleID=0&story=0&execution=$execution->id") : 'javascript:;', 'data-toggle' => $modal, 'data-size' => 'lg', 'data-on' => 'click', 'data-call' => 'checkProducts');
+if($canBatchCreateStory)              $createMenu[] = array('text' => $lang->story->batchCreate, 'url' => $productID ? (count($productNames) > 1 ? '#batchCreateStory' : helper::createLink('story', 'batchCreate', "productID=$productID&branch=$branchID&moduleID=0&story=0&execution=$execution->id")) : 'javascript:;', 'data-toggle' => $modal, 'data-size' => 'lg', 'data-on' => 'click', 'data-call' => 'checkProducts');
+if($canLinkStory)                     $createMenu[] = array('text' => $lang->execution->linkStory, 'url' => $productID ? helper::createLink('execution', 'linkStory', "execution=$execution->id") : 'javascript:;', 'data-toggle' => $modal, 'data-size' => 'lg', 'data-on' => 'click', 'data-call' => 'checkProducts');
+if($canLinkStoryByPlan)               $createMenu[] = array('text' => $lang->execution->linkStoryByPlan, 'url' => $productID ? "#linkStoryByPlan" : 'javascript:;', 'data-toggle' => $modal, 'data-size' => 'sm', 'data-on' => 'click', 'data-call' => 'checkProducts');
 if($hasStoryButton && $hasTaskButton) $createMenu[] = array('type' => 'divider');
-if($canCreateBug) $createMenu[] = array('text' => $lang->bug->create, 'url' => helper::createLink('bug', 'create', "productID=$productID&branch=0&extra=executionID=$execution->id"), 'data-toggle' => 'modal', 'data-size' => 'lg');
+if($canCreateBug)                     $createMenu[] = array('text' => $lang->bug->create, 'url' => helper::createLink('bug', 'create', "productID=$productID&branch=0&extra=executionID=$execution->id"), 'data-toggle' => 'modal', 'data-size' => 'lg');
 if($canBatchCreateBug)
 {
     if(count($productNames) > 1)
@@ -101,6 +103,7 @@ jsVar('storyLang', $lang->story);
 jsVar('executionLang', $lang->execution);
 jsVar('laneLang', $lang->kanbanlane);
 jsVar('cardLang', $lang->kanbancard);
+jsVar('ERURColumn', array_keys($lang->kanban->ERURColumn));
 jsVar('bugLang', $lang->bug);
 jsVar('taskLang', $lang->task);
 jsVar('executionID', $execution->id);
@@ -114,49 +117,50 @@ jsVar('minColWidth', $execution->fluidBoard == '0' ? $execution->colWidth : $exe
 jsVar('maxColWidth', $execution->fluidBoard == '0' ? $execution->colWidth : $execution->maxColWidth);
 jsVar('priv',
     array(
-        'canCreateTask'         => $canCreateTask,
-        'canBatchCreateTask'    => $canBatchCreateTask,
-        'canImportBug'          => $canImportBug,
-        'canCreateBug'          => $canCreateBug,
-        'canBatchCreateBug'     => $canBatchCreateBug,
-        'canCreateStory'        => $canCreateStory,
-        'canBatchCreateStory'   => $canBatchCreateStory,
-        'canLinkStory'          => $canLinkStory,
-        'canLinkStoryByPlan'    => $canLinkStoryByPlan,
-        'canViewBug'            => common::hasPriv('bug', 'view'),
-        'canAssignBug'          => Common::hasPriv('bug', 'assignto') && $canModifyExecution,
-        'canConfirmBug'         => Common::hasPriv('bug', 'confirm')  && $canModifyExecution,
-        'canResolveBug'         => Common::hasPriv('bug', 'resolve')  && $canModifyExecution,
-        'canCopyBug'            => Common::hasPriv('bug', 'create')   && $canModifyExecution,
-        'canEditBug'            => Common::hasPriv('bug', 'edit')     && $canModifyExecution,
-        'canDeleteBug'          => Common::hasPriv('bug', 'delete')   && $canModifyExecution,
-        'canActivateBug'        => Common::hasPriv('bug', 'activate') && $canModifyExecution,
-        'canViewTask'           => common::hasPriv('task', 'view'),
-        'canAssignTask'         => common::hasPriv('task', 'assignto') && $canModifyExecution,
-        'canFinishTask'         => common::hasPriv('task', 'finish')   && $canModifyExecution,
-        'canPauseTask'          => common::hasPriv('task', 'pause')    && $canModifyExecution,
-        'canCancelTask'         => common::hasPriv('task', 'cancel')   && $canModifyExecution,
-        'canCloseTask'          => common::hasPriv('task', 'close')    && $canModifyExecution,
-        'canActivateTask'       => common::hasPriv('task', 'activate')       && $canModifyExecution,
-        'canActivateStory'      => common::hasPriv('story', 'activate')      && $canModifyExecution,
-        'canStartTask'          => common::hasPriv('task', 'start')          && $canModifyExecution,
-        'canRestartTask'        => common::hasPriv('task', 'restart')        && $canModifyExecution,
-        'canEditTask'           => common::hasPriv('task', 'edit')           && $canModifyExecution,
-        'canDeleteTask'         => common::hasPriv('task', 'delete')         && $canModifyExecution,
-        'canRecordWorkhourTask' => common::hasPriv('task', 'recordWorkhour') && $canModifyExecution,
-        'canToStoryBug'         => common::hasPriv('story', 'create')        && $canModifyExecution,
-        'canAssignStory'        => common::hasPriv('story', 'assignto')      && $canModifyExecution,
-        'canEditStory'          => common::hasPriv('story', 'edit')          && $canModifyExecution,
-        'canDeleteStory'        => common::hasPriv('story', 'delete')        && $canModifyExecution,
-        'canChangeStory'        => common::hasPriv('story', 'change')        && $canModifyExecution,
-        'canCloseStory'         => common::hasPriv('story', 'close')         && $canModifyExecution,
-        'canUnlinkStory'        => (common::hasPriv('execution', 'unlinkStory') && !empty($execution->hasProduct)) && $canModifyExecution,
-        'canViewStory'          => common::hasPriv('execution', 'storyView')
+        'canCreateTask'             => $canCreateTask,
+        'canBatchCreateTask'        => $canBatchCreateTask,
+        'canImportBug'              => $canImportBug,
+        'canCreateBug'              => $canCreateBug,
+        'canBatchCreateBug'         => $canBatchCreateBug,
+        'canCreateStory'            => $canCreateStory,
+        'canBatchCreateStory'       => $canBatchCreateStory,
+        'canLinkStory'              => $canLinkStory,
+        'canLinkStoryByPlan'        => $canLinkStoryByPlan,
+        'canViewBug'                => common::hasPriv('bug', 'view'),
+        'canAssignBug'              => common::hasPriv('bug', 'assignto') && $canModifyExecution,
+        'canConfirmBug'             => common::hasPriv('bug', 'confirm') && $canModifyExecution,
+        'canResolveBug'             => common::hasPriv('bug', 'resolve') && $canModifyExecution,
+        'canCopyBug'                => common::hasPriv('bug', 'create') && $canModifyExecution,
+        'canEditBug'                => common::hasPriv('bug', 'edit') && $canModifyExecution,
+        'canDeleteBug'              => common::hasPriv('bug', 'delete') && $canModifyExecution,
+        'canActivateBug'            => common::hasPriv('bug', 'activate') && $canModifyExecution,
+        'canViewTask'               => common::hasPriv('task', 'view'),
+        'canAssignTask'             => common::hasPriv('task', 'assignto') && $canModifyExecution,
+        'canFinishTask'             => common::hasPriv('task', 'finish') && $canModifyExecution,
+        'canPauseTask'              => common::hasPriv('task', 'pause') && $canModifyExecution,
+        'canCancelTask'             => common::hasPriv('task', 'cancel') && $canModifyExecution,
+        'canCloseTask'              => common::hasPriv('task', 'close'),
+        'canActivateTask'           => common::hasPriv('task', 'activate') && $canModifyExecution,
+        'canActivateStory'          => common::hasPriv('story', 'activate') && $canModifyExecution,
+        'canStartTask'              => common::hasPriv('task', 'start') && $canModifyExecution,
+        'canRestartTask'            => common::hasPriv('task', 'restart') && $canModifyExecution,
+        'canEditTask'               => common::hasPriv('task', 'edit') && $canModifyExecution,
+        'canDeleteTask'             => common::hasPriv('task', 'delete') && $canModifyExecution,
+        'canRecordWorkhourTask'     => common::hasPriv('task', 'recordWorkhour') && $canModifyExecution,
+        'canToStoryBug'             => common::hasPriv('story', 'create') && $canModifyExecution,
+        'canAssignStory'            => common::hasPriv('story', 'assignto') && $canModifyExecution,
+        'canEditStory'              => common::hasPriv('story', 'edit') && $canModifyExecution,
+        'canDeleteStory'            => common::hasPriv('story', 'delete') && $canModifyExecution,
+        'canChangeStory'            => common::hasPriv('story', 'change') && $canModifyExecution,
+        'canCloseStory'             => common::hasPriv('story', 'close'),
+        'canUnlinkStory'            => (common::hasPriv('execution', 'unlinkStory') && !empty($execution->hasProduct)) && $canModifyExecution,
+        'canViewStory'              => common::hasPriv('execution', 'storyView')
     )
 );
 
 if(!$features['story']) unset($lang->kanban->type['story']);
 if(!$features['qa'])    unset($lang->kanban->type['bug']);
+unset($lang->kanban->type['epic'], $lang->kanban->type['requirement']);
 
 $executionItems = array();
 foreach($executionList as $childExecution) $executionItems[] = array('text' => $childExecution->name, 'url' => createLink('execution', 'kanban', "kanbanID={$childExecution->id}"));
@@ -291,7 +295,10 @@ div
     (
         set::key('kanban'),
         set::items($kanbanList),
-        set::height('calc(100vh - 120px)')
+        set::height('calc(100vh - 120px)'),
+        set::links($links),
+        set::selectable(true),
+        set::showLinkOnSelected(true)
     )
 );
 
diff --git a/module/execution/ui/linkstory.html.php b/module/execution/ui/linkstory.html.php
index a2526732bf..8be372119f 100644
--- a/module/execution/ui/linkstory.html.php
+++ b/module/execution/ui/linkstory.html.php
@@ -12,12 +12,10 @@ declare(strict_types=1);
 
 namespace zin;
 
-data('activeMenuID', $storyType);
-
 featureBar(li
 (
     setClass('nav-item'),
-    a(setClass('active'), $lang->execution->linkStory),
+    a(setClass('active'), $lang->execution->linkStory)
 ));
 
 searchForm
@@ -32,7 +30,6 @@ $cols = $config->execution->linkStory->dtable->fieldList;
 $cols['module']['map']  = $modules;
 $cols['product']['map'] = $productPairs;
 
-if($storyType == 'requirement') $cols['title']['title'] = str_replace($lang->SRCommon, $lang->URCommon, $lang->story->title);
 if($productType != 'normal')
 {
     $cols['branch']['title'] = $lang->product->branchName[$productType];
@@ -43,7 +40,8 @@ else
 }
 
 jsVar('branchGroups', $branchGroups);
-
+jsVar('gradeGroup', $gradeGroup);
+jsVar('showGrade', $showGrade);
 
 $footToolbar['items'][] = array(
     'text'      => $lang->save,
@@ -63,7 +61,6 @@ if(!isInModal())
 
 $objectType = $object->type == 'project' ? 'projectstory' : 'execution';
 
-jsVar('childrenAB', $lang->story->childrenAB);
 dtable
 (
     set::groupDivider(true),
diff --git a/module/execution/ui/story.html.php b/module/execution/ui/story.html.php
index 405d06bdfd..e46b87d767 100644
--- a/module/execution/ui/story.html.php
+++ b/module/execution/ui/story.html.php
@@ -11,11 +11,13 @@ declare(strict_types=1);
 
 namespace zin;
 
-data('activeMenuID',        $storyType);
-jsVar('executionID',        $execution->id);
-jsVar('childrenAB',         $lang->story->childrenAB);
-jsVar('modulePairs',        $modulePairs);
-jsVar('hasProduct',         $execution->hasProduct);
+data('activeMenuID', $storyType);
+jsVar('executionID', $execution->id);
+jsVar('childrenAB',  $lang->story->childrenAB);
+jsVar('modulePairs', $modulePairs);
+jsVar('oldShowGrades', $showGrades);
+jsVar('gradeGroup', $gradeGroup);
+jsVar('hasProduct',  $execution->hasProduct);
 jsVar('linkedTaskStories',  $linkedTaskStories);
 jsVar('URChanged',          $lang->story->URChanged);
 jsVar('confirmStoryToTask', $lang->execution->confirmStoryToTask);
@@ -26,6 +28,23 @@ jsVar('hourPointNotError',  sprintf($lang->story->float, $lang->story->convertRe
 /* Show feature bar. */
 featureBar
 (
+    $config->edition == 'ipd' ? to::leading
+    (
+        picker
+        (
+            set::tree(),
+            set::name('showGrades'),
+            set::items($gradeMenu),
+            set::search(false),
+            set::multiple(true),
+            set::width('150px'),
+            setStyle('justify-content', 'center'),
+            set::display($lang->story->viewAllGrades),
+            set::menu(array('checkbox' => true)),
+            set::value($showGrades),
+            set::onPopHidden(jsRaw('setShowGrades'))
+        )
+    ) : null,
     set::current($this->session->storyBrowseType),
     set::link(createLink($app->rawModule, $app->rawMethod, "&executionID=$execution->id&storyType=$storyType&orderBy=$orderBy&type={key}")),
     li(searchToggle(set::module('executionStory'), set::open($type == 'bysearch')))
@@ -69,12 +88,22 @@ if(!$product)
     $product = new stdclass();
     $product->id = 0;
 }
-$canModifyProduct   = common::canModify('product', $product);
-$canModifyExecution = common::canModify('execution', $execution);
-$canCreate          = $canModifyProduct && $canModifyExecution && hasPriv('story', 'create');
-$canBatchCreate     = $canModifyProduct && $canModifyExecution && hasPriv('story', 'batchCreate');
-$createLink         = createLink('story', 'create', "product={$product->id}&branch=0&moduleID={$moduleID}&storyID=0&objectID={$execution->id}&bugID=0&planID=0&todoID=0&extra=&storyType={$storyType}") . "#app={$app->tab}";
-$batchCreateLink    = createLink('story', 'batchCreate', "productID={$product->id}&branch=0&moduleID=0&storyID=0&executionID={$execution->id}&plan=0&storyType={$storyType}") . "#app={$app->tab}";
+
+$canModifyProduct                     = common::canModify('product', $product);
+$canModifyExecution                   = common::canModify('execution', $execution);
+$canOpreate['create']                 = $canModifyProduct && $canModifyExecution && hasPriv('story', 'create');
+$canOpreate['batchCreate']            = $canModifyProduct && $canModifyExecution && hasPriv('story', 'batchCreate');
+$canOpreate['createEpic']             = $canModifyProduct && $canModifyExecution && hasPriv('epic', 'create') && strpos($project->storyType, 'epic') !== false;
+$canOpreate['batchCreateEpic']        = $canModifyProduct && $canModifyExecution && hasPriv('epic', 'batchCreate') && strpos($project->storyType, 'epic') !== false;
+$canOpreate['createRequirement']      = $canModifyProduct && $canModifyExecution && hasPriv('requirement', 'create') && strpos($project->storyType, 'requirement') !== false;
+$canOpreate['batchCreateRequirement'] = $canModifyProduct && $canModifyExecution && hasPriv('requirement', 'batchCreate') && strpos($project->storyType, 'requirement') !== false;
+
+$createLink                 = createLink('story', 'create', "product={$product->id}&branch=0&moduleID=0&storyID=0&objectID={$execution->id}&bugID=0&planID=0&todoID=0&extra=&storyType={$storyType}") . "#app={$app->tab}";
+$batchCreateLink            = createLink('story', 'batchCreate', "productID={$product->id}&branch=0&moduleID=0&storyID=0&executionID={$execution->id}&plan=0&storyType={$storyType}") . "#app={$app->tab}";
+$createEpicLink             = createLink('epic', 'create', "product={$product->id}&branch=0&moduleID=0&storyID=0&objectID={$execution->id}") . "#app={$app->tab}";
+$batchCreateEpicLink        = createLink('epic', 'batchCreate', "productID={$product->id}&branch=0&moduleID=0&storyID=0&executionID={$execution->id}") . "#app={$app->tab}";
+$createRequirementLink      = createLink('requirement', 'create', "product={$product->id}&branch=0&moduleID=0&storyID=0&objectID={$execution->id}") . "#app={$app->tab}";
+$batchCreateRequirementLink = createLink('requirement', 'batchCreate', "productID={$product->id}&branch=0&moduleID=0&storyID=0&executionID={$execution->id}") . "#app={$app->tab}";
 
 /* Tutorial create link. */
 if(commonModel::isTutorialMode())
@@ -84,8 +113,26 @@ if(commonModel::isTutorialMode())
     $canBatchCreate = false;
 }
 
-$createItem      = array('text' => $lang->story->create,      'url' => $createLink);
-$batchCreateItem = array('text' => $lang->story->batchCreate, 'url' => $batchCreateLink);
+$createItems = array();
+$batchItems  = array();
+if($canOpreate['batchCreate']) $batchItems[] = array('text' => $lang->SRCommon, 'url' => $batchCreateLink);
+if(in_array($execution->attribute, array('mix', 'request', 'design')) || !$execution->multiple)
+{
+    if($canOpreate['createRequirement'])      $createItems[] = array('text' => $lang->requirement->create, 'url' => $createRequirementLink);
+    if($canOpreate['createEpic'])             $createItems[] = array('text' => $lang->epic->create,  'url' => $createEpicLink);
+    if($canOpreate['batchCreateRequirement']) $batchItems[]  = array('text' => $lang->URCommon, 'url' => $batchCreateRequirementLink);
+    if($canOpreate['batchCreateEpic'])        $batchItems[]  = array('text' => $lang->ERCommon, 'url' => $batchCreateEpicLink);
+}
+
+if(count($batchItems) > 1)
+{
+    $createItems[] = array('text' => $lang->story->batchCreate, 'items' => $batchItems);
+}
+else
+{
+    $batchItems[0]['text'] = $lang->story->batchCreate;
+    $createItems = array_merge($createItems, $batchItems);
+}
 
 $canLinkStory     = ($execution->hasProduct || $app->tab == 'execution') && $canModifyProduct && $canModifyExecution && hasPriv('execution', 'linkStory');
 $canlinkPlanStory = ($execution->hasProduct || $app->tab == 'execution') && $canModifyProduct && $canModifyExecution && hasPriv('execution', 'importPlanStories') && $storyType == 'story';
@@ -101,6 +148,32 @@ if(commonModel::isTutorialMode())
 $linkItem     = array('text' => $lang->story->linkStory, 'url' => $linkStoryUrl, 'data-app' => $app->tab);
 $linkPlanItem = array('text' => $lang->execution->linkStoryByPlan, 'url' => '#linkStoryByPlan', 'data-toggle' => 'modal', 'data-size' => 'sm');
 
+$createBtnGroup = null;
+if($canOpreate['create'])
+{
+    $createBtnGroup = btngroup
+    (
+        btn
+        (
+            setClass('btn secondary'),
+            set::icon('plus'),
+            set::url($createLink),
+            $lang->story->create
+        ),
+        dropdown
+        (
+            btn(setClass('btn secondary dropdown-toggle'),
+            setStyle(array('padding' => '6px', 'border-radius' => '0 2px 2px 0'))),
+            set::items($createItems),
+            set::placement('bottom-end')
+        )
+    );
+}
+elseif(count($createItems) == 1)
+{
+    $createBtnGroup = item(set($createItems[0] + array('class' => 'btn secondary', 'icon' => 'plus')));
+}
+
 $product ? toolbar
 (
     common::hasPriv('execution', 'storykanban') && $storyType == 'story' ? btnGroup
@@ -137,25 +210,7 @@ $product ? toolbar
         'data-toggle' => 'modal'
     ))) : null,
 
-    $canCreate && $canBatchCreate ? btngroup
-    (
-        btn
-        (
-            setClass('btn secondary'),
-            set::icon('plus'),
-            set::url($createLink),
-            $lang->story->create
-        ),
-        dropdown
-        (
-            btn(setClass('btn secondary dropdown-toggle'),
-            setStyle(array('padding' => '6px', 'border-radius' => '0 2px 2px 0'))),
-            set::items(array_filter(array($createItem, $batchCreateItem))),
-            set::placement('bottom-end')
-        )
-    ) : null,
-    $canCreate && !$canBatchCreate ? item(set($createItem + array('class' => 'btn primary', 'icon' => 'plus'))) : null,
-    $canBatchCreate && !$canCreate ? item(set($batchCreateItem + array('class' => 'btn primary', 'icon' => 'plus'))) : null,
+    $createBtnGroup,
 
     $canLinkStory && $canlinkPlanStory ? btngroup
     (
@@ -392,14 +447,18 @@ foreach($setting as $col)
     if(!$execution->hasProduct && $col['name'] == 'branch') continue;
     if(!$execution->hasProduct && !$execution->multiple && $col['name'] == 'plan') continue;
 
-    if($col['name'] == 'title') $col['link'] = createLink('execution', 'storyView', array('storyID' => '{id}', 'execution' => $execution->id));
+    if($col['name'] == 'title')
+    {
+        $col['link']  = createLink('execution', 'storyView', array('storyID' => '{id}', 'execution' => $execution->id));
+        $col['title'] = $this->lang->story->name;
+    }
 
     $cols[] = $col;
 }
 
 /* DataTable data. */
 $data        = array();
-$actionMenus = array('submitreview', 'recall', 'recalledchange', 'review', 'dropdown', 'createTask', 'batchCreateTask', 'divider', 'storyEstimate', 'testcase', 'unlink', 'processStoryChange');
+$actionMenus = array('submitreview', 'recall', 'recalledchange', 'review', 'dropdown', 'createTask', 'batchCreateTask', 'divider', 'storyEstimate', 'testcase', 'batchCreate', 'unlink', 'processStoryChange');
 if(empty($execution->hasProduct) && empty($execution->multiple))
 {
     $actionMenus = array('submitreview', 'recall', 'recalledchange', 'review', 'dropdown', 'createTask', 'batchCreateTask', 'edit', 'divider', 'storyEstimate', 'testcase', 'batchCreate', 'close', 'processStoryChange');
@@ -417,21 +476,14 @@ foreach($stories as $story)
 {
     $story->moduleID = $story->module;
     $story->from     = 'execution';
-    $data[] = $this->story->formatStoryForList($story, $options, $storyType);
+    $data[] = $this->story->formatStoryForList($story, $options, $storyType, $maxGradeGroup);
     if(!isset($story->children)) continue;
-
-    /* Children. */
-    foreach($story->children as $key => $child)
-    {
-        $child->moduleID = $child->module;
-        $data[] = $this->story->formatStoryForList($child, $options, $storyType);
-    }
 }
 
 jsVar('cases', $storyCases);
 jsVar('summary', $summary);
+jsVar('checkedSummary', $lang->product->checkedAllSummary);
 jsVar('storyType', $storyType);
-jsVar('checkedSummary', $storyType == 'story' ? $lang->product->checkedSRSummary : $lang->product->checkedURSummary);
 dtable
 (
     setClass('shadow rounded'),
@@ -453,7 +505,7 @@ dtable
     set::checkInfo(jsRaw('function(checkedIDList){return window.setStatistics(this, checkedIDList);}')),
     set::emptyTip($lang->story->noStory),
     set::createTip($lang->story->create),
-    set::createLink($canCreate ? $createLink : '')
+    set::createLink($canOpreate['create'] ? $createLink : '')
 );
 
 render();
diff --git a/module/execution/ui/taskkanban.html.php b/module/execution/ui/taskkanban.html.php
index 7d707dc267..205a074729 100644
--- a/module/execution/ui/taskkanban.html.php
+++ b/module/execution/ui/taskkanban.html.php
@@ -63,6 +63,7 @@ jsVar('lanePairs', $lanePairs);
 jsVar('colPairs', $colPairs);
 jsVar('vision', $config->vision);
 jsVar('colorList', $config->kanban->cardColorList);
+jsVar('ERURColumn', array_keys($lang->kanban->ERURColumn));
 jsVar('executionID', $executionID);
 jsVar('productID', $productID);
 jsVar('kanbanGroup', $kanbanGroup);
@@ -125,13 +126,22 @@ jsVar('canImportBug', $features['qa']);
 jsVar('canChangeObject', common::canModify('execution', $execution));
 
 $canCreateObject = ($canCreateTask or $canBatchCreateTask or $canImportBug or $canCreateBug or $canBatchCreateBug or $canCreateStory or $canBatchCreateStory or $canLinkStory or $canLinkStoryByPlan);
+if($execution->type != 'stage' && !in_array($execution->attribute, array('mix', 'request', 'design')))
+{
+    unset($lang->kanban->type['epic'], $lang->kanban->type['requirement']);
+}
+else
+{
+    if(strpos($project->storyType, 'epic') === false)        unset($lang->kanban->type['epic']);
+    if(strpos($project->storyType, 'requirement') === false) unset($lang->kanban->type['requirement']);
+}
 row
 (
     setClass('items-center justify-between mb-3'),
     cell
     (
         setClass('flex'),
-        $features['qa'] ? inputControl
+        inputControl
         (
             setClass('c-type'),
             picker
@@ -143,7 +153,7 @@ row
                 set::required(true),
                 set::onchange('changeBrowseType()')
             )
-        ) : null,
+        ),
         $browseType != 'all' ? inputControl
         (
             setClass('c-group ml-5'),
@@ -233,7 +243,10 @@ div
     (
         set::key('kanban'),
         set::items($kanbanGroup),
-        set::height('calc(100vh - 120px)')
+        set::height('calc(100vh - 120px)'),
+        set::links($links),
+        set::selectable(true),
+        set::showLinkOnSelected(true)
     )
 );
 
diff --git a/module/execution/ui/view.html.php b/module/execution/ui/view.html.php
index af6d89b6a9..5f84e956d9 100644
--- a/module/execution/ui/view.html.php
+++ b/module/execution/ui/view.html.php
@@ -195,7 +195,7 @@ div
                         setClass('text-lg font-bold'),
                         $statData->storyCount
                     ),
-                    $lang->story->common
+                    $lang->common->story
                 ) : null,
                 div
                 (
diff --git a/module/execution/zen.php b/module/execution/zen.php
index 0a981e45c2..544f2bd9b3 100644
--- a/module/execution/zen.php
+++ b/module/execution/zen.php
@@ -211,7 +211,7 @@ class executionZen extends execution
         $this->view->storyTasks = $this->loadModel('task')->getStoryTaskCounts($storyIdList, $executionID);
         $this->view->storyBugs  = $this->loadModel('bug')->getStoryBugCounts($storyIdList, $executionID);
         $this->view->storyCases = $this->loadModel('testcase')->getStoryCaseCounts($storyIdList);
-        $this->view->summary    = $this->loadModel('product')->summary($stories, $storyType);
+        $this->view->summary    = $this->loadModel('product')->summary($stories, 'all');
     }
 
     /**
@@ -257,11 +257,18 @@ class executionZen extends execution
             }
         }
 
+        $project = $this->loadModel('project')->fetchByID($execution->project);
+        if(!($execution->type == 'stage' && in_array($execution->attribute, array('mix', 'request', 'design'))) && $project->multiple) $project->storyType = 'story';
+
         $productPairs = $this->loadModel('product')->getProductPairsByProject($execution->id); // Get execution's product.
         if(empty($productID)) $productID = (int)key($productPairs);
 
         $this->assignModuleForStory($type, $param, $storyType, $execution, $productID);
 
+        $gradeList  = $this->loadModel('story')->getGradeList('');
+        $gradeGroup = array();
+        foreach($gradeList as $grade) $gradeGroup[$grade->type][$grade->grade] = $grade->name;
+
         /* Assign. */
         $this->view->title             = $execution->name . $this->lang->hyphen . $this->lang->execution->story;
         $this->view->storyType         = $storyType;
@@ -274,6 +281,10 @@ class executionZen extends execution
         $this->view->users             = $this->loadModel('user')->getPairs('noletter');
         $this->view->multiBranch       = $multiBranch;
         $this->view->execution         = $execution;
+        $this->view->gradeMenu         = $this->loadModel('story')->getGradeMenu($storyType, $project);
+        $this->view->maxGradeGroup     = $this->story->getMaxGradeGroup();
+        $this->view->gradeGroup        = $gradeGroup;
+        $this->view->showGrades        = isset($this->config->execution->showGrades) ? $this->config->execution->showGrades : $this->story->getDefaultShowGrades($this->view->gradeMenu);
         $this->view->canBeChanged      = common::canModify('execution', $execution); // Determines whether an object is editable.
         $this->view->branchPairs       = $this->loadModel('branch')->getPairs($productID, 'withClosed');
         $this->view->linkedTaskStories = $this->loadModel('story')->getIdListWithTask($execution->id);
@@ -362,6 +373,7 @@ class executionZen extends execution
         $this->view->allPlans     = $allPlans;
         $this->view->hiddenPlan   = $project->model !== 'scrum';
         $this->view->execution    = $execution;
+        $this->view->project      = $project;
         $this->view->canBeChanged = common::canModify('execution', $execution);
     }
 
diff --git a/module/group/lang/de.php b/module/group/lang/de.php
index e712bf2f80..927c9be515 100644
--- a/module/group/lang/de.php
+++ b/module/group/lang/de.php
@@ -235,6 +235,11 @@ $lang->group->package->importStory           = 'Import Story';
 $lang->group->package->deleteStory           = 'Delete Story';
 $lang->group->package->reviewStory           = 'Review Story';
 $lang->group->package->deleteProduct         = 'Delete Product';
+$lang->group->package->browseEpic            = 'Browse Epic';
+$lang->group->package->manageEpic            = 'Manage Epic';
+$lang->group->package->importEpic            = 'Import Epic';
+$lang->group->package->deleteEpic            = 'Delete Epic';
+$lang->group->package->reviewEpic            = 'Review Epic';
 $lang->group->package->browseRequirement     = 'Browse Requirement';
 $lang->group->package->manageRequirement     = 'Manage Requirement';
 $lang->group->package->importRequirement     = 'Import Requirement';
@@ -250,6 +255,7 @@ $lang->group->package->deleteRelease         = 'Delete Release';
 $lang->group->package->releaseNotify         = 'Release Notify';
 $lang->group->package->projectPlan           = 'Project Plan';
 $lang->group->package->manageProjectStory    = 'Manage Project Story';
+$lang->group->package->importProjectStory    = 'Import Project Story';
 $lang->group->package->browseProject         = 'Browse Project';
 $lang->group->package->manageProject         = 'Manage Project';
 $lang->group->package->importProject         = 'Import Project';
diff --git a/module/group/lang/en.php b/module/group/lang/en.php
index 3a1a220c5c..e2bd0f5985 100644
--- a/module/group/lang/en.php
+++ b/module/group/lang/en.php
@@ -235,6 +235,11 @@ $lang->group->package->importStory           = 'Import Story';
 $lang->group->package->deleteStory           = 'Delete Story';
 $lang->group->package->reviewStory           = 'Review Story';
 $lang->group->package->deleteProduct         = 'Delete Product';
+$lang->group->package->browseEpic            = 'Browse Epic';
+$lang->group->package->manageEpic            = 'Manage Epic';
+$lang->group->package->importEpic            = 'Import Epic';
+$lang->group->package->deleteEpic            = 'Delete Epic';
+$lang->group->package->reviewEpic            = 'Review Epic';
 $lang->group->package->browseRequirement     = 'Browse Requirement';
 $lang->group->package->manageRequirement     = 'Manage Requirement';
 $lang->group->package->importRequirement     = 'Import Requirement';
@@ -250,6 +255,7 @@ $lang->group->package->deleteRelease         = 'Delete Release';
 $lang->group->package->releaseNotify         = 'Release Notify';
 $lang->group->package->projectPlan           = 'Project Plan';
 $lang->group->package->manageProjectStory    = 'Manage Project Story';
+$lang->group->package->importProjectStory    = 'Import Project Story';
 $lang->group->package->browseProject         = 'Browse Project';
 $lang->group->package->manageProject         = 'Manage Project';
 $lang->group->package->importProject         = 'Import Project';
diff --git a/module/group/lang/fr.php b/module/group/lang/fr.php
index a9fffb6045..24181d925c 100644
--- a/module/group/lang/fr.php
+++ b/module/group/lang/fr.php
@@ -235,6 +235,11 @@ $lang->group->package->importStory           = 'Import Story';
 $lang->group->package->deleteStory           = 'Delete Story';
 $lang->group->package->reviewStory           = 'Review Story';
 $lang->group->package->deleteProduct         = 'Delete Product';
+$lang->group->package->browseEpic            = 'Browse Epic';
+$lang->group->package->manageEpic            = 'Manage Epic';
+$lang->group->package->importEpic            = 'Import Epic';
+$lang->group->package->deleteEpic            = 'Delete Epic';
+$lang->group->package->reviewEpic            = 'Review Epic';
 $lang->group->package->browseRequirement     = 'Browse Requirement';
 $lang->group->package->manageRequirement     = 'Manage Requirement';
 $lang->group->package->importRequirement     = 'Import Requirement';
@@ -250,6 +255,7 @@ $lang->group->package->deleteRelease         = 'Delete Release';
 $lang->group->package->releaseNotify         = 'Release Notify';
 $lang->group->package->projectPlan           = 'Project Plan';
 $lang->group->package->manageProjectStory    = 'Manage Project Story';
+$lang->group->package->importProjectStory    = 'Import Project Story';
 $lang->group->package->browseProject         = 'Browse Project';
 $lang->group->package->manageProject         = 'Manage Project';
 $lang->group->package->importProject         = 'Import Project';
diff --git a/module/group/lang/resource.php b/module/group/lang/resource.php
index f3526b6936..bd86754efd 100644
--- a/module/group/lang/resource.php
+++ b/module/group/lang/resource.php
@@ -19,7 +19,8 @@ $lang->moduleOrder[15]  = 'program';
 $lang->moduleOrder[20]  = 'personnel';
 $lang->moduleOrder[25]  = 'product';
 $lang->moduleOrder[30]  = 'story';
-$lang->moduleOrder[31]  = 'requirement';
+$lang->moduleOrder[32]  = 'requirement';
+$lang->moduleOrder[33]  = 'epic';
 $lang->moduleOrder[35]  = 'productplan';
 $lang->moduleOrder[40]  = 'release';
 
@@ -270,6 +271,13 @@ $lang->resource->projectstory->linkStory         = 'linkStory';
 $lang->resource->projectstory->unlinkStory       = 'unlinkStory';
 $lang->resource->projectstory->batchUnlinkStory  = 'batchUnlinkStory';
 $lang->resource->projectstory->importplanstories = 'importplanstories';
+$lang->resource->projectstory->report            = 'report';
+$lang->resource->projectstory->export            = 'export';
+$lang->resource->projectstory->batchReview       = 'batchReview';
+$lang->resource->projectstory->batchClose        = 'batchClose';
+$lang->resource->projectstory->batchChangePlan   = 'batchChangePlan';
+$lang->resource->projectstory->batchAssignTo     = 'batchAssignTo';
+$lang->resource->projectstory->batchEdit         = 'batchEdit';
 
 $lang->projectstory->methodOrder[5]  = 'story';
 $lang->projectstory->methodOrder[10] = 'track';
@@ -277,6 +285,13 @@ $lang->projectstory->methodOrder[15] = 'view';
 $lang->projectstory->methodOrder[20] = 'linkStory';
 $lang->projectstory->methodOrder[25] = 'unlinkStory';
 $lang->projectstory->methodOrder[23] = 'importplanstories';
+$lang->projectstory->methodOrder[30] = 'report';
+$lang->projectstory->methodOrder[35] = 'export';
+$lang->projectstory->methodOrder[40] = 'batchReview';
+$lang->projectstory->methodOrder[45] = 'batchClose';
+$lang->projectstory->methodOrder[50] = 'batchChangePlan';
+$lang->projectstory->methodOrder[55] = 'batchAssignTo';
+$lang->projectstory->methodOrder[60] = 'batchEdit';
 
 /* Release. */
 $lang->resource->projectrelease = new stdclass();
@@ -431,6 +446,7 @@ $lang->resource->product = new stdclass();
 $lang->resource->product->index           = 'indexAction';
 $lang->resource->product->browse          = 'browse';
 $lang->resource->product->requirement     = 'requirement';
+$lang->resource->product->epic            = 'epic';
 $lang->resource->product->create          = 'create';
 $lang->resource->product->view            = 'view';
 $lang->resource->product->edit            = 'edit';
@@ -455,6 +471,7 @@ $lang->resource->product->unbindWhitelist = 'unbindWhitelist';
 $lang->product->methodOrder[0]   = 'index';
 $lang->product->methodOrder[5]   = 'browse';
 $lang->product->methodOrder[6]   = 'requirement';
+$lang->product->methodOrder[7]   = 'epic';
 $lang->product->methodOrder[10]  = 'create';
 $lang->product->methodOrder[15]  = 'view';
 $lang->product->methodOrder[20]  = 'edit';
@@ -526,9 +543,9 @@ $lang->resource->story->batchChangeBranch  = 'batchChangeBranch';
 $lang->resource->story->batchChangeStage   = 'batchChangeStage';
 $lang->resource->story->batchAssignTo      = 'batchAssignTo';
 $lang->resource->story->batchChangeModule  = 'batchChangeModule';
+$lang->resource->story->batchChangeParent  = 'batchChangeParent';
 $lang->resource->story->batchToTask        = 'batchToTask';
 $lang->resource->story->processStoryChange = 'processStoryChange';
-$lang->resource->story->linkStories        = 'linkStoriesAB';
 $lang->resource->story->relieved           = 'relievedTwins';
 $lang->resource->story->createBranch       = 'codeBranch';
 $lang->resource->story->unlinkBranch       = 'unlinkBranch';
@@ -536,6 +553,7 @@ $lang->resource->story->unlinkBranch       = 'unlinkBranch';
 $lang->story->methodOrder[5]   = 'create';
 $lang->story->methodOrder[10]  = 'batchCreate';
 $lang->story->methodOrder[15]  = 'edit';
+$lang->story->methodOrder[17]  = 'batchEdit';
 $lang->story->methodOrder[20]  = 'export';
 $lang->story->methodOrder[25]  = 'delete';
 $lang->story->methodOrder[30]  = 'view';
@@ -558,9 +576,9 @@ $lang->story->methodOrder[105] = 'report';
 $lang->story->methodOrder[110] = 'linkStory';
 $lang->story->methodOrder[115] = 'batchChangeBranch';
 $lang->story->methodOrder[120] = 'batchChangeModule';
-$lang->story->methodOrder[125] = 'batchToTask';
-$lang->story->methodOrder[130] = 'processStoryChange';
-$lang->story->methodOrder[135] = 'linkStories';
+$lang->story->methodOrder[125] = 'batchChangeParent';
+$lang->story->methodOrder[130] = 'batchToTask';
+$lang->story->methodOrder[135] = 'processStoryChange';
 $lang->story->methodOrder[140] = 'relieved';
 $lang->story->methodOrder[145] = 'createBranch';
 $lang->story->methodOrder[150] = 'unlinkBranch';
@@ -588,7 +606,9 @@ $lang->resource->requirement->report            = 'reportAction';
 $lang->resource->requirement->batchChangeBranch = 'batchChangeBranch';
 $lang->resource->requirement->batchAssignTo     = 'batchAssignTo';
 $lang->resource->requirement->batchChangeModule = 'batchChangeModule';
-$lang->resource->requirement->linkRequirements  = 'linkRequirementsAB';
+$lang->resource->requirement->batchChangeParent = 'batchChangeParent';
+$lang->resource->requirement->batchChangeGrade  = 'batchChangeGrade';
+$lang->resource->requirement->batchChangePlan   = 'batchChangePlan';
 
 $lang->requirement->methodOrder[5]   = 'create';
 $lang->requirement->methodOrder[10]  = 'batchCreate';
@@ -610,7 +630,61 @@ $lang->requirement->methodOrder[80]  = 'report';
 $lang->requirement->methodOrder[85]  = 'linkStory';
 $lang->requirement->methodOrder[90]  = 'batchChangeBranch';
 $lang->requirement->methodOrder[95]  = 'batchChangeModule';
-$lang->requirement->methodOrder[100] = 'linkRequirements';
+$lang->requirement->methodOrder[100] = 'batchChangeParent';
+$lang->requirement->methodOrder[105] = 'batchChangeGrade';
+$lang->requirement->methodOrder[110] = 'batchChangePlan';
+
+/* Epic. */
+$lang->resource->epic = new stdclass();
+$lang->resource->epic->create            = 'create';
+$lang->resource->epic->batchCreate       = 'batchCreate';
+$lang->resource->epic->edit              = 'editAction';
+$lang->resource->epic->batchEdit         = 'batchEdit';
+$lang->resource->epic->linkStory         = 'linkStory';
+$lang->resource->epic->export            = 'exportAction';
+$lang->resource->epic->delete            = 'deleteAction';
+$lang->resource->epic->view              = 'view';
+$lang->resource->epic->change            = 'changeAction';
+$lang->resource->epic->review            = 'reviewAction';
+$lang->resource->epic->submitReview      = 'submitReview';
+$lang->resource->epic->batchReview       = 'batchReview';
+$lang->resource->epic->recall            = 'recall';
+$lang->resource->epic->assignTo          = 'assignAction';
+$lang->resource->epic->close             = 'closeAction';
+$lang->resource->epic->batchClose        = 'batchClose';
+$lang->resource->epic->activate          = 'activateAction';
+$lang->resource->epic->report            = 'reportAction';
+$lang->resource->epic->batchChangeBranch = 'batchChangeBranch';
+$lang->resource->epic->batchAssignTo     = 'batchAssignTo';
+$lang->resource->epic->batchChangeModule = 'batchChangeModule';
+$lang->resource->epic->batchChangeParent = 'batchChangeParent';
+$lang->resource->epic->batchChangeGrade  = 'batchChangeGrade';
+$lang->resource->epic->batchChangePlan   = 'batchChangePlan';
+
+$lang->epic->methodOrder[5]   = 'create';
+$lang->epic->methodOrder[10]  = 'batchCreate';
+$lang->epic->methodOrder[15]  = 'edit';
+$lang->epic->methodOrder[16]  = 'batchEdit';
+$lang->epic->methodOrder[17]  = 'linkStory';
+$lang->epic->methodOrder[20]  = 'export';
+$lang->epic->methodOrder[25]  = 'delete';
+$lang->epic->methodOrder[30]  = 'view';
+$lang->epic->methodOrder[35]  = 'change';
+$lang->epic->methodOrder[40]  = 'review';
+$lang->epic->methodOrder[44]  = 'submitReview';
+$lang->epic->methodOrder[45]  = 'batchReview';
+$lang->epic->methodOrder[50]  = 'recall';
+$lang->epic->methodOrder[55]  = 'close';
+$lang->epic->methodOrder[60]  = 'batchClose';
+$lang->epic->methodOrder[65]  = 'assignTo';
+$lang->epic->methodOrder[70]  = 'batchAssignTo';
+$lang->epic->methodOrder[75]  = 'activate';
+$lang->epic->methodOrder[80]  = 'report';
+$lang->epic->methodOrder[90]  = 'batchChangeBranch';
+$lang->epic->methodOrder[95]  = 'batchChangeModule';
+$lang->epic->methodOrder[100] = 'batchChangeParent';
+$lang->epic->methodOrder[105] = 'batchChangeGrade';
+$lang->epic->methodOrder[110] = 'batchChangePlan';
 
 /* Product plan. */
 $lang->resource->productplan = new stdclass();
@@ -1506,29 +1580,35 @@ $lang->resource->custom->editStoryConcept   = 'editStoryConcept';
 $lang->resource->custom->browseStoryConcept = 'browseStoryConcept';
 $lang->resource->custom->setDefaultConcept  = 'setDefaultConcept';
 $lang->resource->custom->deleteStoryConcept = 'deleteStoryConcept';
+$lang->resource->custom->closeGrade         = 'closeGrade';
+$lang->resource->custom->activateGrade      = 'activateGrade';
+$lang->resource->custom->deleteGrade        = 'deleteGrade';
 $lang->resource->custom->kanban             = 'kanban';
 $lang->resource->custom->code               = 'code';
 $lang->resource->custom->hours              = 'hours';
 $lang->resource->custom->percent            = 'percent';
 $lang->resource->custom->limitTaskDate      = 'limitTaskDateAction';
 
-$lang->custom->methodOrder[10] = 'set';
-$lang->custom->methodOrder[15] = 'product';
-$lang->custom->methodOrder[20] = 'execution';
-$lang->custom->methodOrder[25] = 'required';
-$lang->custom->methodOrder[30] = 'restore';
-$lang->custom->methodOrder[35] = 'flow';
-$lang->custom->methodOrder[45] = 'timezone';
-$lang->custom->methodOrder[50] = 'setStoryConcept';
-$lang->custom->methodOrder[55] = 'editStoryConcept';
-$lang->custom->methodOrder[60] = 'browseStoryConcept';
-$lang->custom->methodOrder[65] = 'setDefaultConcept';
-$lang->custom->methodOrder[70] = 'deleteStoryConcept';
-$lang->custom->methodOrder[75] = 'kanban';
-$lang->custom->methodOrder[80] = 'code';
-$lang->custom->methodOrder[85] = 'hours';
-$lang->custom->methodOrder[90] = 'percent';
-$lang->custom->methodOrder[95] = 'limitTaskDate';
+$lang->custom->methodOrder[10]  = 'set';
+$lang->custom->methodOrder[15]  = 'product';
+$lang->custom->methodOrder[20]  = 'execution';
+$lang->custom->methodOrder[25]  = 'required';
+$lang->custom->methodOrder[30]  = 'restore';
+$lang->custom->methodOrder[35]  = 'flow';
+$lang->custom->methodOrder[45]  = 'timezone';
+$lang->custom->methodOrder[50]  = 'setStoryConcept';
+$lang->custom->methodOrder[55]  = 'editStoryConcept';
+$lang->custom->methodOrder[60]  = 'browseStoryConcept';
+$lang->custom->methodOrder[65]  = 'setDefaultConcept';
+$lang->custom->methodOrder[70]  = 'deleteStoryConcept';
+$lang->custom->methodOrder[75]  = 'closeGrade';
+$lang->custom->methodOrder[80]  = 'activateGrade';
+$lang->custom->methodOrder[85]  = 'deleteGrade';
+$lang->custom->methodOrder[90]  = 'kanban';
+$lang->custom->methodOrder[95]  = 'code';
+$lang->custom->methodOrder[100] = 'hours';
+$lang->custom->methodOrder[105] = 'percent';
+$lang->custom->methodOrder[110] = 'limitTaskDate';
 
 $lang->resource->datatable = new stdclass();
 $lang->resource->datatable->setGlobal = 'setGlobal';
@@ -2096,6 +2176,11 @@ if(!$inUpgrade)
         unset($lang->resource->story->linkStory);
         unset($lang->resource->requirement);
     }
+    if(!$config->enableER)
+    {
+        unset($lang->resource->product->epic);
+        unset($lang->resource->epic);
+    }
     if($config->systemMode == 'light')
     {
         unset($lang->resource->program);
diff --git a/module/group/lang/zh-cn.php b/module/group/lang/zh-cn.php
index bfbe0af26f..27f0db70cc 100644
--- a/module/group/lang/zh-cn.php
+++ b/module/group/lang/zh-cn.php
@@ -235,6 +235,11 @@ $lang->group->package->importStory           = '导入导出研发需求';
 $lang->group->package->deleteStory           = '删除研发需求';
 $lang->group->package->reviewStory           = '评审研发需求';
 $lang->group->package->deleteProduct         = '删除产品';
+$lang->group->package->browseEpic            = '浏览业务需求';
+$lang->group->package->manageEpic            = '创建维护业务需求';
+$lang->group->package->importEpic            = '导入导出业务需求';
+$lang->group->package->deleteEpic            = '删除业务需求';
+$lang->group->package->reviewEpic            = '评审业务需求';
 $lang->group->package->browseRequirement     = '浏览用户需求';
 $lang->group->package->manageRequirement     = '创建维护用户需求';
 $lang->group->package->importRequirement     = '导入导出用户需求';
@@ -249,7 +254,8 @@ $lang->group->package->importRelease         = '导入导出发布';
 $lang->group->package->deleteRelease         = '删除发布';
 $lang->group->package->releaseNotify         = '发布通知';
 $lang->group->package->projectPlan           = '项目计划';
-$lang->group->package->manageProjectStory    = '维护项目研发需求';
+$lang->group->package->manageProjectStory    = '维护项目需求';
+$lang->group->package->importProjectStory    = '导入导出项目需求';
 $lang->group->package->browseProject         = '浏览项目';
 $lang->group->package->manageProject         = '创建维护项目';
 $lang->group->package->importProject         = '导入导出项目';
@@ -504,7 +510,7 @@ $lang->group->package->executionRelation     = '维护任务关系';
 $lang->group->package->browseBuild           = '浏览版本';
 $lang->group->package->browseExecutionStory  = '浏览执行研发需求';
 $lang->group->package->manageCard            = '维护卡片';
-$lang->group->package->browseProjectStory    = '浏览项目研发需求';
+$lang->group->package->browseProjectStory    = '浏览项目需求';
 $lang->group->package->chckAuditPlan         = '检查质量保证计划';
 $lang->group->package->reviewAssess          = '评审基线评审';
 $lang->group->package->reviewAudit           = '审计基线评审';
diff --git a/module/group/packagemanager.php b/module/group/packagemanager.php
index ba074bd435..7bb079b682 100644
--- a/module/group/packagemanager.php
+++ b/module/group/packagemanager.php
@@ -45,6 +45,10 @@ $config->group->subset->requirement = new stdclass();
 $config->group->subset->requirement->order = 120;
 $config->group->subset->requirement->nav   = 'product';
 
+$config->group->subset->epic = new stdclass();
+$config->group->subset->epic->order = 125;
+$config->group->subset->epic->nav   = 'product';
+
 $config->group->subset->productplan = new stdclass();
 $config->group->subset->productplan->order = 130;
 $config->group->subset->productplan->nav   = 'product';
@@ -645,15 +649,16 @@ $config->group->package->browseProduct = new stdclass();
 $config->group->package->browseProduct->order  = 5;
 $config->group->package->browseProduct->subset = 'product';
 $config->group->package->browseProduct->privs  = array();
-$config->group->package->browseProduct->privs['product-index']     = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd', 'order' => 0, 'depend' => array(), 'recommend' => array('product-all', 'product-dashboard', 'product-kanban', 'product-view'));
-$config->group->package->browseProduct->privs['product-view']      = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 4, 'depend' => array('product-all', 'product-browse', 'product-dashboard'), 'recommend' => array('branch-manage', 'product-all', 'product-create', 'product-dashboard', 'product-dynamic', 'product-edit', 'product-kanban', 'product-whitelist'));
-$config->group->package->browseProduct->privs['product-roadmap']   = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd', 'order' => 5, 'depend' => array('product-all', 'product-browse', 'product-dashboard'), 'recommend' => array('release-view'));
-$config->group->package->browseProduct->privs['product-track']     = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd', 'order' => 6, 'depend' => array('product-browse'), 'recommend' => array('product-browse', 'product-requirement', 'requirement-view', 'story-view'));
-$config->group->package->browseProduct->privs['product-dynamic']   = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 7, 'depend' => array('product-browse'), 'recommend' => array('product-all', 'product-kanban', 'product-view'));
-$config->group->package->browseProduct->privs['product-project']   = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd', 'order' => 8, 'depend' => array('product-browse'), 'recommend' => array('project-create'));
-$config->group->package->browseProduct->privs['product-dashboard'] = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 3, 'depend' => array(), 'recommend' => array('product-dynamic', 'product-roadmap'));
-$config->group->package->browseProduct->privs['product-all']       = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 1, 'depend' => array(), 'recommend' => array('product-create', 'product-dashboard', 'product-dynamic', 'product-edit', 'product-index', 'product-kanban', 'product-updateOrder', 'product-view'));
-$config->group->package->browseProduct->privs['product-kanban']    = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd', 'order' => 2, 'depend' => array(), 'recommend' => array('product-all', 'product-dashboard', 'product-dynamic', 'product-index', 'product-view'));
+$config->group->package->browseProduct->privs['product-index']       = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd', 'order' => 0, 'depend' => array(), 'recommend' => array('product-all', 'product-dashboard', 'product-kanban', 'product-view'));
+$config->group->package->browseProduct->privs['product-view']        = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 4, 'depend' => array('product-all', 'product-browse', 'product-dashboard'), 'recommend' => array('branch-manage', 'product-all', 'product-create', 'product-dashboard', 'product-dynamic', 'product-edit', 'product-kanban', 'product-whitelist'));
+$config->group->package->browseProduct->privs['product-roadmap']     = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd', 'order' => 5, 'depend' => array('product-all', 'product-browse', 'product-dashboard'), 'recommend' => array('release-view'));
+$config->group->package->browseProduct->privs['product-track']       = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd', 'order' => 6, 'depend' => array('product-browse'), 'recommend' => array('product-browse', 'product-requirement', 'requirement-view', 'story-view', 'bug-view', 'testcase-view', 'epic-view', 'design-view', 'project-view', 'execution-task', 'task-view', 'repo-revision'));
+$config->group->package->browseProduct->privs['product-exportTrack'] = array('edition' => 'biz,max,ipd',      'vision' => 'rnd', 'order' => 15, 'depend' => array('product-track'), 'recommend' => array('product-browse'));
+$config->group->package->browseProduct->privs['product-dynamic']     = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 7, 'depend' => array('product-browse'), 'recommend' => array('product-all', 'product-kanban', 'product-view'));
+$config->group->package->browseProduct->privs['product-project']     = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd', 'order' => 8, 'depend' => array('product-browse'), 'recommend' => array('project-create'));
+$config->group->package->browseProduct->privs['product-dashboard']   = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 3, 'depend' => array(), 'recommend' => array('product-dynamic', 'product-roadmap'));
+$config->group->package->browseProduct->privs['product-all']         = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 1, 'depend' => array(), 'recommend' => array('product-create', 'product-dashboard', 'product-dynamic', 'product-edit', 'product-index', 'product-kanban', 'product-updateOrder', 'product-view'));
+$config->group->package->browseProduct->privs['product-kanban']      = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd', 'order' => 2, 'depend' => array(), 'recommend' => array('product-all', 'product-dashboard', 'product-dynamic', 'product-index', 'product-view'));
 
 $config->group->package->manageProductLine = new stdclass();
 $config->group->package->manageProductLine->order  = 10;
@@ -714,26 +719,27 @@ $config->group->package->manageStory = new stdclass();
 $config->group->package->manageStory->order  = 10;
 $config->group->package->manageStory->subset = 'story';
 $config->group->package->manageStory->privs  = array();
-$config->group->package->manageStory->privs['story-create']             = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 0, 'depend' => array(), 'recommend' => array('story-activate', 'story-assignTo', 'story-batchCreate', 'story-change', 'story-close', 'story-edit', 'story-linkStories', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-relation', 'story-relieved', 'story-submitReview'));
+$config->group->package->manageStory->privs['story-create']             = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 0, 'depend' => array(), 'recommend' => array('story-activate', 'story-assignTo', 'story-batchCreate', 'story-change', 'story-close', 'story-edit', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-relation', 'story-relieved', 'story-submitReview'));
 $config->group->package->manageStory->privs['story-batchCreate']        = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 1, 'depend' => array('product-browse'), 'recommend' => array('story-create'));
-$config->group->package->manageStory->privs['story-edit']               = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 2, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-batchEdit', 'story-change', 'story-close', 'story-create', 'story-linkStories', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-relieved', 'story-submitReview'));
-$config->group->package->manageStory->privs['story-change']             = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 4, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-close', 'story-create', 'story-edit', 'story-linkStories', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-relieved', 'story-submitReview'));
-$config->group->package->manageStory->privs['story-submitReview']       = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 5, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-change', 'story-close', 'story-create', 'story-edit', 'story-linkStories', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-relieved'));
-$config->group->package->manageStory->privs['story-recall']             = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 6, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-change', 'story-close', 'story-create', 'story-edit', 'story-linkStories', 'story-linkStory', 'story-processStoryChange', 'story-relieved', 'story-submitReview'));
-$config->group->package->manageStory->privs['story-close']              = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 7, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-change', 'story-create', 'story-edit', 'story-linkStories', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-relieved', 'story-submitReview'));
+$config->group->package->manageStory->privs['story-edit']               = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 2, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-batchEdit', 'story-change', 'story-close', 'story-create', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-relieved', 'story-submitReview'));
+$config->group->package->manageStory->privs['story-batchEdit']          = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 3, 'depend' => array('product-browse'), 'recommend' => array('story-edit'));
+$config->group->package->manageStory->privs['story-change']             = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 4, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-close', 'story-create', 'story-edit', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-relieved', 'story-submitReview'));
+$config->group->package->manageStory->privs['story-submitReview']       = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 5, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-change', 'story-close', 'story-create', 'story-edit', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-relieved'));
+$config->group->package->manageStory->privs['story-recall']             = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 6, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-change', 'story-close', 'story-create', 'story-edit', 'story-linkStory', 'story-processStoryChange', 'story-relieved', 'story-submitReview'));
+$config->group->package->manageStory->privs['story-close']              = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 7, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-change', 'story-create', 'story-edit', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-relieved', 'story-submitReview'));
 $config->group->package->manageStory->privs['story-batchClose']         = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 8, 'depend' => array('product-browse'), 'recommend' => array('story-close'));
 $config->group->package->manageStory->privs['story-batchChangePlan']    = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 9, 'depend' => array('product-browse'), 'recommend' => array('story-edit'));
 $config->group->package->manageStory->privs['story-batchChangeStage']   = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 10, 'depend' => array('product-browse'), 'recommend' => array('story-edit'));
-$config->group->package->manageStory->privs['story-assignTo']           = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 11, 'depend' => array('product-browse'), 'recommend' => array('story-activate', 'story-change', 'story-close', 'story-create', 'story-edit', 'story-linkStories', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-relieved', 'story-submitReview'));
+$config->group->package->manageStory->privs['story-assignTo']           = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 11, 'depend' => array('product-browse'), 'recommend' => array('story-activate', 'story-change', 'story-close', 'story-create', 'story-edit', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-relieved', 'story-submitReview'));
 $config->group->package->manageStory->privs['story-batchAssignTo']      = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 12, 'depend' => array('product-browse'), 'recommend' => array('story-edit'));
-$config->group->package->manageStory->privs['story-activate']           = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 13, 'depend' => array('story-view'), 'recommend' => array('story-assignTo', 'story-change', 'story-close', 'story-create', 'story-edit', 'story-linkStories', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-relieved', 'story-submitReview'));
-$config->group->package->manageStory->privs['story-linkStory']          = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 14, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-change', 'story-close', 'story-create', 'story-edit', 'story-linkStories', 'story-processStoryChange', 'story-recall', 'story-relieved', 'story-submitReview'));
+$config->group->package->manageStory->privs['story-activate']           = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 13, 'depend' => array('story-view'), 'recommend' => array('story-assignTo', 'story-change', 'story-close', 'story-create', 'story-edit', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-relieved', 'story-submitReview'));
+$config->group->package->manageStory->privs['story-linkStory']          = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 14, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-change', 'story-close', 'story-create', 'story-edit', 'story-processStoryChange', 'story-recall', 'story-relieved', 'story-submitReview'));
 $config->group->package->manageStory->privs['story-batchChangeBranch']  = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 15, 'depend' => array('product-browse'), 'recommend' => array('story-edit'));
 $config->group->package->manageStory->privs['story-batchChangeModule']  = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 16, 'depend' => array('product-browse'), 'recommend' => array('story-edit'));
-$config->group->package->manageStory->privs['story-processStoryChange'] = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 17, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-change', 'story-close', 'story-create', 'story-edit', 'story-linkStories', 'story-linkStory', 'story-recall', 'story-relieved', 'story-submitReview'));
-$config->group->package->manageStory->privs['story-linkStories']        = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd', 'order' => 18, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-change', 'story-close', 'story-create', 'story-edit', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-relieved', 'story-submitReview'));
-$config->group->package->manageStory->privs['story-relieved']           = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd', 'order' => 20, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-change', 'story-close', 'story-create', 'story-edit', 'story-linkStories', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-submitReview'));
-$config->group->package->manageStory->privs['story-batchEdit']          = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 3, 'depend' => array('product-browse'), 'recommend' => array('story-edit'));
+$config->group->package->manageStory->privs['story-batchChangeParent']  = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 17, 'depend' => array('product-browse'), 'recommend' => array('story-edit'));
+$config->group->package->manageStory->privs['story-batchChangeGrade']   = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 18, 'depend' => array('product-browse'), 'recommend' => array('story-edit'));
+$config->group->package->manageStory->privs['story-processStoryChange'] = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 19, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-change', 'story-close', 'story-create', 'story-edit', 'story-linkStory', 'story-recall', 'story-relieved', 'story-submitReview'));
+$config->group->package->manageStory->privs['story-relieved']           = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd', 'order' => 21, 'depend' => array('story-view'), 'recommend' => array('story-activate', 'story-assignTo', 'story-change', 'story-close', 'story-create', 'story-edit', 'story-linkStory', 'story-processStoryChange', 'story-recall', 'story-submitReview'));
 $config->group->package->manageStory->privs['story-relation']           = array('edition' => 'max,ipd', 'vision' => 'rnd', 'order' => 19, 'depend' => array('story-view'), 'recommend' => array());
 $config->group->package->manageStory->privs['story-createBranch']       = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 3, 'depend' => array('story-view'), 'recommend' => array('story-unlinkBranch'));
 $config->group->package->manageStory->privs['story-unlinkBranch']       = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 3, 'depend' => array('story-view', 'story-createBranch'), 'recommend' => array());
@@ -792,6 +798,9 @@ $config->group->package->manageRequirement->privs['requirement-activate']
 $config->group->package->manageRequirement->privs['requirement-linkStory']          = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 90, 'depend' => array('requirement-view'), 'recommend' => array('requirement-activate', 'requirement-assignTo', 'requirement-batchChangeModule', 'requirement-change', 'requirement-close', 'requirement-create', 'requirement-edit', 'requirement-linkRequirements', 'requirement-recall', 'requirement-submitReview'));
 $config->group->package->manageRequirement->privs['requirement-batchChangeBranch']  = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 95, 'depend' => array('product-requirement'), 'recommend' => array('requirement-edit'));
 $config->group->package->manageRequirement->privs['requirement-batchChangeModule']  = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 100, 'depend' => array('product-requirement'), 'recommend' => array('requirement-edit'));
+$config->group->package->manageRequirement->privs['requirement-batchChangeParent']  = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 101, 'depend' => array('product-requirement'), 'recommend' => array('requirement-edit'));
+$config->group->package->manageRequirement->privs['requirement-batchChangeGrade']   = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 102, 'depend' => array('product-requirement'), 'recommend' => array('requirement-edit'));
+$config->group->package->manageRequirement->privs['requirement-batchChangePlan']    = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 103, 'depend' => array('product-requirement'), 'recommend' => array('requirement-edit'));
 $config->group->package->manageRequirement->privs['requirement-linkRequirements']   = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 105, 'depend' => array('requirement-view'), 'recommend' => array('requirement-activate', 'requirement-assignTo', 'requirement-change', 'requirement-close', 'requirement-create', 'requirement-edit', 'requirement-linkStory', 'requirement-recall', 'requirement-submitReview'));
 $config->group->package->manageRequirement->privs['requirement-batchEdit']          = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 110, 'depend' => array('product-requirement'), 'recommend' => array('requirement-edit'));
 $config->group->package->manageRequirement->privs['requirement-batchChangeRoadmap'] = array('edition' => 'ipd', 'vision' => 'or', 'order' => 125, 'depend' => array('product-requirement'), 'recommend' => array('requirement-batchCreate', 'requirement-create', 'requirement-edit'));
@@ -812,6 +821,54 @@ $config->group->package->reviewRequirement->privs  = array();
 $config->group->package->reviewRequirement->privs['requirement-review']      = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 40, 'depend' => array('requirement-view'), 'recommend' => array('requirement-batchReview'));
 $config->group->package->reviewRequirement->privs['requirement-batchReview'] = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 50, 'depend' => array('product-requirement'), 'recommend' => array('requirement-review'));
 
+$config->group->package->browseEpic = new stdclass();
+$config->group->package->browseEpic->order  = 5;
+$config->group->package->browseEpic->subset = 'epic';
+$config->group->package->browseEpic->privs  = array();
+$config->group->package->browseEpic->privs['product-epic'] = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 15, 'depend' => array('product-browse'), 'recommend' => array('epic-report', 'epic-view'));
+$config->group->package->browseEpic->privs['epic-view']    = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 30, 'depend' => array(), 'recommend' => array());
+$config->group->package->browseEpic->privs['epic-report']  = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 85, 'depend' => array('product-epic'), 'recommend' => array());
+
+$config->group->package->manageEpic = new stdclass();
+$config->group->package->manageEpic->order  = 10;
+$config->group->package->manageEpic->subset = 'epic';
+$config->group->package->manageEpic->privs  = array();
+$config->group->package->manageEpic->privs['epic-create']             = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 5, 'depend' => array(), 'recommend' => array('epic-activate', 'epic-assignTo', 'epic-batchCreate', 'epic-change', 'epic-close', 'epic-edit', 'epic-linkepics', 'epic-linkStory', 'epic-recall', 'epic-submitReview'));
+$config->group->package->manageEpic->privs['epic-batchCreate']        = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 10, 'depend' => array('product-epic'), 'recommend' => array('epic-create'));
+$config->group->package->manageEpic->privs['epic-edit']               = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 15, 'depend' => array('epic-view'), 'recommend' => array('epic-activate', 'epic-assignTo', 'epic-batchEdit', 'epic-change', 'epic-close', 'epic-create', 'epic-linkepics', 'epic-linkStory', 'epic-recall', 'epic-submitReview'));
+$config->group->package->manageEpic->privs['epic-delete']             = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 25, 'depend' => array('epic-view'), 'recommend' => array('epic-create', 'epic-edit'));
+$config->group->package->manageEpic->privs['epic-change']             = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 35, 'depend' => array('epic-view'), 'recommend' => array('epic-activate', 'epic-assignTo', 'epic-close', 'epic-create', 'epic-edit', 'epic-linkepics', 'epic-linkStory', 'epic-recall', 'epic-submitReview'));
+$config->group->package->manageEpic->privs['epic-submitReview']       = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 45, 'depend' => array('epic-view'), 'recommend' => array('epic-activate', 'epic-assignTo', 'epic-change', 'epic-close', 'epic-create', 'epic-edit', 'epic-linkepics', 'epic-linkStory', 'epic-recall'));
+$config->group->package->manageEpic->privs['epic-recall']             = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 55, 'depend' => array('epic-view'), 'recommend' => array('epic-activate', 'epic-assignTo', 'epic-change', 'epic-close', 'epic-create', 'epic-edit', 'epic-linkepics', 'epic-linkStory', 'epic-submitReview'));
+$config->group->package->manageEpic->privs['epic-close']              = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 60, 'depend' => array('epic-view'), 'recommend' => array('epic-activate', 'epic-assignTo', 'epic-batchClose', 'epic-change', 'epic-create', 'epic-edit', 'epic-linkepics', 'epic-linkStory', 'epic-recall', 'epic-submitReview'));
+$config->group->package->manageEpic->privs['epic-batchClose']         = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 65, 'depend' => array('product-epic'), 'recommend' => array('epic-close'));
+$config->group->package->manageEpic->privs['epic-assignTo']           = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 70, 'depend' => array('epic-view'), 'recommend' => array('epic-activate', 'epic-batchAssignTo', 'epic-change', 'epic-close', 'epic-create', 'epic-edit', 'epic-linkepics', 'epic-linkStory', 'epic-recall', 'epic-submitReview'));
+$config->group->package->manageEpic->privs['epic-batchAssignTo']      = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 75, 'depend' => array('product-epic'), 'recommend' => array('epic-assignTo'));
+$config->group->package->manageEpic->privs['epic-activate']           = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 80, 'depend' => array('epic-view'), 'recommend' => array('epic-assignTo', 'epic-change', 'epic-close', 'epic-create', 'epic-edit', 'epic-linkepics', 'epic-linkStory', 'epic-recall', 'epic-submitReview'));
+$config->group->package->manageEpic->privs['epic-linkStory']          = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 90, 'depend' => array('epic-view'), 'recommend' => array('epic-activate', 'epic-assignTo', 'epic-batchChangeModule', 'epic-change', 'epic-close', 'epic-create', 'epic-edit', 'epic-linkepics', 'epic-recall', 'epic-submitReview'));
+$config->group->package->manageEpic->privs['epic-batchChangeBranch']  = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 95, 'depend' => array('product-epic'), 'recommend' => array('epic-edit'));
+$config->group->package->manageEpic->privs['epic-batchChangeModule']  = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 100, 'depend' => array('product-epic'), 'recommend' => array('epic-edit'));
+$config->group->package->manageEpic->privs['epic-batchChangeParent']  = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 101, 'depend' => array('product-epic'), 'recommend' => array('epic-edit'));
+$config->group->package->manageEpic->privs['epic-batchChangeGrade']   = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 102, 'depend' => array('product-epic'), 'recommend' => array('epic-edit'));
+$config->group->package->manageEpic->privs['epic-batchChangePlan']    = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 103, 'depend' => array('product-epic'), 'recommend' => array('epic-edit'));
+$config->group->package->manageEpic->privs['epic-batchEdit']          = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 110, 'depend' => array('product-epic'), 'recommend' => array('epic-edit'));
+$config->group->package->manageEpic->privs['epic-batchChangeRoadmap'] = array('edition' => 'ipd', 'vision' => 'or', 'order' => 125, 'depend' => array('product-epic'), 'recommend' => array('epic-batchCreate', 'epic-create', 'epic-edit'));
+
+$config->group->package->importEpic = new stdclass();
+$config->group->package->importEpic->order  = 20;
+$config->group->package->importEpic->subset = 'epic';
+$config->group->package->importEpic->privs  = array();
+$config->group->package->importEpic->privs['epic-export']         = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 20, 'depend' => array('product-epic'), 'recommend' => array());
+$config->group->package->importEpic->privs['epic-import']         = array('edition' => 'biz,max,ipd', 'vision' => 'rnd,or', 'order' => 115, 'depend' => array('product-epic', 'epic-exportTemplate'), 'recommend' => array());
+$config->group->package->importEpic->privs['epic-exportTemplate'] = array('edition' => 'biz,max,ipd', 'vision' => 'rnd,or', 'order' => 120, 'depend' => array('product-epic'), 'recommend' => array());
+
+$config->group->package->reviewEpic = new stdclass();
+$config->group->package->reviewEpic->order  = 15;
+$config->group->package->reviewEpic->subset = 'epic';
+$config->group->package->reviewEpic->privs  = array();
+$config->group->package->reviewEpic->privs['epic-review']      = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 40, 'depend' => array('epic-view'), 'recommend' => array('epic-batchReview'));
+$config->group->package->reviewEpic->privs['epic-batchReview'] = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,or', 'order' => 50, 'depend' => array('product-epic'), 'recommend' => array('epic-review'));
+
 $config->group->package->browseProductPlan = new stdclass();
 $config->group->package->browseProductPlan->order  = 5;
 $config->group->package->browseProductPlan->subset = 'productplan';
@@ -902,6 +959,21 @@ $config->group->package->manageProjectStory->privs['projectstory-importplanstori
 $config->group->package->manageProjectStory->privs['projectstory-unlinkStory']       = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 30, 'depend' => array('projectstory-story'), 'recommend' => array('projectstory-batchUnlinkStory', 'projectstory-importFromLib', 'projectstory-importplanstories', 'projectstory-linkStory', 'story-batchToTask'));
 $config->group->package->manageProjectStory->privs['projectstory-batchUnlinkStory']  = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 35, 'depend' => array('projectstory-story'), 'recommend' => array('projectstory-unlinkStory'));
 $config->group->package->manageProjectStory->privs['projectstory-importFromLib']     = array('edition' => 'max,ipd', 'vision' => 'rnd', 'order' => 40, 'depend' => array('projectstory-story'), 'recommend' => array('assetlib-story', 'assetlib-storylib', 'projectstory-batchUnlinkStory', 'projectstory-importplanstories', 'projectstory-linkStory', 'projectstory-unlinkStory', 'story-batchToTask'));
+$config->group->package->manageProjectStory->privs['projectstory-batchReview']       = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 50, 'depend' => array('projectstory-story'), 'recommend' => array());
+$config->group->package->manageProjectStory->privs['projectstory-batchClose']        = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 60, 'depend' => array('projectstory-story'), 'recommend' => array());
+$config->group->package->manageProjectStory->privs['projectstory-batchChangePlan']   = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 70, 'depend' => array('projectstory-story'), 'recommend' => array());
+$config->group->package->manageProjectStory->privs['projectstory-batchAssignTo']     = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 80, 'depend' => array('projectstory-story'), 'recommend' => array());
+$config->group->package->manageProjectStory->privs['projectstory-batchEdit']         = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 90, 'depend' => array('projectstory-story'), 'recommend' => array());
+
+$config->group->package->importProjectStory = new stdclass();
+$config->group->package->importProjectStory->order  = 15;
+$config->group->package->importProjectStory->subset = 'projectstory';
+$config->group->package->importProjectStory->privs  = array();
+$config->group->package->importProjectStory->privs['projectstory-export']           = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 5, 'depend' => array('projectstory-story'), 'recommend' => array());
+$config->group->package->importProjectStory->privs['projectstory-import']           = array('edition' => 'biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 10, 'depend' => array('projectstory-story'), 'recommend' => array());
+$config->group->package->importProjectStory->privs['projectstory-exportTemplate']   = array('edition' => 'biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 20, 'depend' => array('projectstory-story'), 'recommend' => array());
+$config->group->package->importProjectStory->privs['projectstory-importToLib']      = array('edition' => 'max,ipd', 'vision' => 'rnd', 'order' => 30, 'depend' => array('story-view'), 'recommend' => array('story-batchImportToLib'));
+$config->group->package->importProjectStory->privs['projectstory-batchImportToLib'] = array('edition' => 'max,ipd', 'vision' => 'rnd', 'order' => 40, 'depend' => array('product-browse'), 'recommend' => array('story-importToLib'));
 
 $config->group->package->browseProject = new stdclass();
 $config->group->package->browseProject->order  = 5;
@@ -1557,6 +1629,7 @@ $config->group->package->handleFeedback->privs['feedback-toBug']       = array('
 $config->group->package->handleFeedback->privs['feedback-toStory']     = array('edition' => 'biz,max,ipd', 'vision' => 'rnd', 'order' => 3, 'depend' => array('feedback-admin', 'story-create'), 'recommend' => array('feedback-reply', 'feedback-review', 'feedback-toBug', 'feedback-toTask', 'feedback-toTicket', 'feedback-toTodo', 'feedback-toUserStory'));
 $config->group->package->handleFeedback->privs['feedback-toTicket']    = array('edition' => 'biz,max,ipd', 'vision' => 'rnd', 'order' => 8, 'depend' => array('feedback-admin', 'ticket-create'), 'recommend' => array('feedback-reply', 'feedback-review', 'feedback-toBug', 'feedback-toStory', 'feedback-toTask', 'feedback-toTodo', 'feedback-toUserStory'));
 $config->group->package->handleFeedback->privs['feedback-toUserStory'] = array('edition' => 'biz,max,ipd', 'vision' => 'rnd,or', 'order' => 4, 'depend' => array('feedback-admin', 'requirement-create'), 'recommend' => array('feedback-reply', 'feedback-review', 'feedback-toBug', 'feedback-toStory', 'feedback-toTask', 'feedback-toTicket', 'feedback-toTodo'));
+$config->group->package->handleFeedback->privs['feedback-toEpic']      = array('edition' => 'biz,max,ipd', 'vision' => 'rnd,or', 'order' => 4, 'depend' => array('feedback-admin', 'epic-create'), 'recommend' => array('feedback-reply', 'feedback-review', 'feedback-toBug', 'feedback-toStory', 'feedback-toTask', 'feedback-toTicket', 'feedback-toTodo'));
 $config->group->package->handleFeedback->privs['feedback-toDemand']    = array('edition' => 'biz,max,ipd', 'vision' => 'rnd,or', 'order' => 4, 'depend' => array('feedback-admin', 'demand-create'), 'recommend' => array('feedback-reply', 'feedback-review', 'feedback-toBug', 'feedback-toStory', 'feedback-toTask', 'feedback-toTicket', 'feedback-toTodo'));
 $config->group->package->handleFeedback->privs['feedback-review']      = array('edition' => 'biz,max,ipd', 'vision' => 'rnd,or', 'order' => 0, 'depend' => array('feedback-admin'), 'recommend' => array('feedback-batchReview', 'feedback-reply', 'feedback-toBug', 'feedback-toStory', 'feedback-toTask', 'feedback-toTicket', 'feedback-toTodo', 'feedback-toUserStory'));
 $config->group->package->handleFeedback->privs['feedback-reply']       = array('edition' => 'biz,max,ipd', 'vision' => 'rnd,or', 'order' => 2, 'depend' => array('feedback-admin'), 'recommend' => array('feedback-review', 'feedback-toBug', 'feedback-toStory', 'feedback-toTask', 'feedback-toTicket', 'feedback-toTodo', 'feedback-toUserStory'));
@@ -2875,13 +2948,6 @@ $config->group->package->docTemplate->privs['baseline-editBook']       = array('
 $config->group->package->docTemplate->privs['baseline-manageBook']     = array('edition' => 'max,ipd', 'vision' => 'rnd', 'order' => 7, 'depend' => array('baseline-template'), 'recommend' => array('baseline-createTemplate', 'baseline-delete', 'baseline-editBook', 'baseline-editTemplate'));
 $config->group->package->docTemplate->privs['baseline-delete']         = array('edition' => 'max,ipd', 'vision' => 'rnd', 'order' => 6, 'depend' => array('baseline-template'), 'recommend' => array('baseline-createTemplate'));
 
-$config->group->package->importStoryLib = new stdclass();
-$config->group->package->importStoryLib->order  = 30;
-$config->group->package->importStoryLib->subset = 'projectstory';
-$config->group->package->importStoryLib->privs  = array();
-$config->group->package->importStoryLib->privs['story-importToLib']      = array('edition' => 'max,ipd', 'vision' => 'rnd', 'order' => 165, 'depend' => array('story-view'), 'recommend' => array('story-batchImportToLib'));
-$config->group->package->importStoryLib->privs['story-batchImportToLib'] = array('edition' => 'max,ipd', 'vision' => 'rnd', 'order' => 170, 'depend' => array('product-browse'), 'recommend' => array('story-importToLib'));
-
 $config->group->package->projectStakeholder = new stdclass();
 $config->group->package->projectStakeholder->order  = 5;
 $config->group->package->projectStakeholder->subset = 'projectsettings';
@@ -3045,6 +3111,9 @@ $config->group->package->custom->privs['custom-deleteStoryConcept'] = array('edi
 $config->group->package->custom->privs['custom-kanban']             = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd', 'order' => 11, 'depend' => array('admin-index', 'admin-register'), 'recommend' => array());
 $config->group->package->custom->privs['custom-setStoryConcept']    = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite,or', 'order' => 6, 'depend' => array('custom-browseStoryConcept'), 'recommend' => array());
 $config->group->package->custom->privs['custom-limitTaskDate']      = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd', 'order' => 10, 'depend' => array('custom-execution'), 'recommend' => array());
+$config->group->package->custom->privs['custom-closeGrade']         = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite,or', 'order' => 12, 'depend' => array('custom-set'), 'recommend' => array());
+$config->group->package->custom->privs['custom-activateGrade']      = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite,or', 'order' => 13, 'depend' => array('custom-set'), 'recommend' => array());
+$config->group->package->custom->privs['custom-deleteGrade']        = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite,or', 'order' => 14, 'depend' => array('custom-set'), 'recommend' => array());
 
 $config->group->package->approvalflow = new stdclass();
 $config->group->package->approvalflow->order  = 10;
@@ -3195,7 +3264,8 @@ $config->group->package->track = new stdclass();
 $config->group->package->track->order  = 5;
 $config->group->package->track->subset = 'projecttrack';
 $config->group->package->track->privs  = array();
-$config->group->package->track->privs['projectstory-track'] = array('edition' => 'max,ipd', 'vision' => 'rnd', 'order' => 10, 'depend' => array('project-index'), 'recommend' => array('design-revision', 'projectstory-story', 'projectstory-view'));
+$config->group->package->track->privs['projectstory-track']       = array('edition' => 'max,ipd',     'vision' => 'rnd', 'order' => 10, 'depend' => array('project-index'), 'recommend' => array('design-revision', 'projectstory-story', 'projectstory-view', 'bug-view', 'testcase-view', 'epic-view', 'requirement-view', 'design-view', 'project-view', 'execution-task', 'task-view', 'repo-revision'));
+$config->group->package->track->privs['projectstory-exportTrack'] = array('edition' => 'max,ipd',     'vision' => 'rnd', 'order' => 20, 'depend' => array('projectstory-track'), 'recommend' => array('projectstory-story'));
 
 $config->group->package->workflowRelation = new stdclass();
 $config->group->package->workflowRelation->order  = 65;
@@ -3330,8 +3400,9 @@ $config->group->package->browseProjectStory = new stdclass();
 $config->group->package->browseProjectStory->order  = 5;
 $config->group->package->browseProjectStory->subset = 'projectstory';
 $config->group->package->browseProjectStory->privs  = array();
-$config->group->package->browseProjectStory->privs['projectstory-story'] = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 5, 'depend' => array('project-index'), 'recommend' => array('projectstory-view'));
-$config->group->package->browseProjectStory->privs['projectstory-view']  = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 15, 'depend' => array('projectstory-story'), 'recommend' => array());
+$config->group->package->browseProjectStory->privs['projectstory-story']  = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 5,  'depend' => array('project-index'), 'recommend' => array('projectstory-view'));
+$config->group->package->browseProjectStory->privs['projectstory-view']   = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 15, 'depend' => array('projectstory-story'), 'recommend' => array());
+$config->group->package->browseProjectStory->privs['projectstory-report'] = array('edition' => 'open,biz,max,ipd', 'vision' => 'rnd,lite', 'order' => 25, 'depend' => array('projectstory-story'), 'recommend' => array());
 
 $config->group->package->chckAuditPlan = new stdclass();
 $config->group->package->chckAuditPlan->order  = 15;
diff --git a/module/kanban/config.php b/module/kanban/config.php
index 1bed44b813..1e33b7bb6d 100644
--- a/module/kanban/config.php
+++ b/module/kanban/config.php
@@ -1,5 +1,5 @@
 <?php
-global $lang;
+global $lang, $app;
 $config->kanban = new stdclass();
 
 $config->kanban->require = new stdclass();
@@ -59,29 +59,50 @@ $config->kanban->releaseField     = array('name', 'status', 'date', 'deleted');
 $config->kanban->buildField       = array('name', 'date', 'builder', 'deleted');
 
 $config->kanban->default = new stdclass();
+$config->kanban->laneColorList   = array('#3C4353', '#838A9D', '#476BDA', '#A65BD4', '#449C9D', '#D75557', '#CE814C', '#E7D057', '#73BE60', '#F6998A', '#8DA8ED', '#93DAF6', '#B9E78C', '#E58CE7', '#EDE590', '#CFB5FA');
+
+$config->kanban->default->epic  = new stdclass();
+$config->kanban->default->epic->name  = $lang->ERCommon;
+$config->kanban->default->epic->color = '#3C4353';
+$config->kanban->default->epic->order = '5';
+
+$config->kanban->default->requirement  = new stdclass();
+$config->kanban->default->requirement->name  = $lang->URCommon;
+$config->kanban->default->requirement->color = '#838A9D';
+$config->kanban->default->requirement->order = '10';
+
+$config->kanban->default->parentStory  = new stdclass();
+$config->kanban->default->parentStory->name  = $lang->kanban->laneTypeList['parentStory'];
+$config->kanban->default->parentStory->color = '#838A9D';
+$config->kanban->default->parentStory->order = '15';
+
 $config->kanban->default->story  = new stdclass();
 $config->kanban->default->story->name  = $lang->SRCommon;
 $config->kanban->default->story->color = '#7ec5ff';
-$config->kanban->default->story->order = '5';
+$config->kanban->default->story->order = '20';
 
 $config->kanban->default->bug = new stdclass();
 $config->kanban->default->bug->name  = $lang->bug->common;
 $config->kanban->default->bug->color = '#ba55d3';
-$config->kanban->default->bug->order = '10';
+$config->kanban->default->bug->order = '25';
 
 $config->kanban->default->task = new stdclass();
 $config->kanban->default->task->name  = $lang->task->common;
 $config->kanban->default->task->color = '#4169e1';
-$config->kanban->default->task->order = '15';
+$config->kanban->default->task->order = '30';
 
 $config->kanban->storyColumnStageList = array();
 $config->kanban->storyColumnStageList['backlog']    = 'projected';
 $config->kanban->storyColumnStageList['ready']      = 'projected';
+$config->kanban->storyColumnStageList['designing']  = 'designing';
+$config->kanban->storyColumnStageList['designed']   = 'designed';
 $config->kanban->storyColumnStageList['developing'] = 'developing';
 $config->kanban->storyColumnStageList['developed']  = 'developed';
 $config->kanban->storyColumnStageList['testing']    = 'testing';
 $config->kanban->storyColumnStageList['tested']     = 'tested';
 $config->kanban->storyColumnStageList['verified']   = 'verified';
+$config->kanban->storyColumnStageList['rejected']   = 'rejected';
+$config->kanban->storyColumnStageList['pending']    = 'pending';
 $config->kanban->storyColumnStageList['released']   = 'released';
 $config->kanban->storyColumnStageList['closed']     = 'closed';
 
@@ -117,4 +138,6 @@ $config->kanban->laneColorList   = array('#3C4353', '#838A9D', '#476BDA', '#A65B
 $config->kanban->columnColorList = array('#333', '#2b519c', '#e48610', '#d2313d', '#2a9f23', '#777', '#d2691e', '#2e8b8b', '#2f8b58', '#4168e0', '#4b0082', '#f58072', '#ba55d3', '#6a8e22');
 $config->kanban->cardColorList   = array('#fff', '#937c5a', '#fc5959', '#ff9f46');
 
-$config->kanban->batchCreate   = 10;
+$config->kanban->RDLaneOrder = array('parentStory' => 5, 'story' => 10, 'bug' => 15, 'task' => 20);
+
+$config->kanban->batchCreate = 10;
diff --git a/module/kanban/control.php b/module/kanban/control.php
index 79755c1ab1..ccadf8543f 100644
--- a/module/kanban/control.php
+++ b/module/kanban/control.php
@@ -1611,7 +1611,14 @@ class kanban extends control
 
         $taskSearchValue = $this->session->taskSearchValue ? $this->session->taskSearchValue : '';
         $rdSearchValue   = $this->session->rdSearchValue ? $this->session->rdSearchValue : '';
-        $kanbanGroup     = $regionID == 0 ? $this->kanban->getExecutionKanban($executionID, $browseType, $groupBy, $taskSearchValue) : $this->kanban->getRDKanban($executionID, $browseType, $orderBy, $regionID, $groupBy, $rdSearchValue);
+        if($regionID == 0)
+        {
+            list($kanbanGroup, $links) = $this->kanban->getExecutionKanban($executionID, $browseType, $groupBy, $taskSearchValue);
+        }
+        else
+        {
+            $kanbanGroup = $this->kanban->getRDKanban($executionID, $browseType, $orderBy, $regionID, $groupBy, $rdSearchValue);
+        }
         echo json_encode($kanbanGroup);
     }
 
diff --git a/module/kanban/lang/de.php b/module/kanban/lang/de.php
index fbb07e7638..71e95038ec 100644
--- a/module/kanban/lang/de.php
+++ b/module/kanban/lang/de.php
@@ -147,10 +147,13 @@ $lang->kanban->alignmentList['center'] = 'Center';
 $lang->kanban->alignmentList['left']   = 'Left';
 
 $lang->kanban->type = array();
-$lang->kanban->type['all']   = "All KanBan";
-$lang->kanban->type['story'] = "Story KanBan";
-$lang->kanban->type['task']  = "Task KanBan";
-$lang->kanban->type['bug']   = "Bug KanBan";
+$lang->kanban->type['all']         = "All KanBan";
+$lang->kanban->type['epic']        = "{$lang->ERCommon} KanBan";
+$lang->kanban->type['requirement'] = "{$lang->URCommon} KanBan";
+$lang->kanban->type['parentStory'] = "Parent Story KanBan";
+$lang->kanban->type['story']       = "Story KanBan";
+$lang->kanban->type['task']        = "Task KanBan";
+$lang->kanban->type['bug']         = "Bug KanBan";
 
 $lang->kanban->group = new stdclass();
 
@@ -163,6 +166,10 @@ $lang->kanban->group->story['module']     = "Story Module";
 $lang->kanban->group->story['source']     = "Story Source";
 $lang->kanban->group->story['assignedTo'] = "Assigned To";
 
+$lang->kanban->group->epic        = $lang->kanban->group->story;
+$lang->kanban->group->requirement = $lang->kanban->group->story;
+$lang->kanban->group->parentStory = $lang->kanban->group->story;
+
 $lang->kanban->group->task = array();
 $lang->kanban->group->task['default']    = "Default Group";
 $lang->kanban->group->task['pri']        = "Task Priority";
@@ -248,13 +255,24 @@ $lang->kanban->defaultColumn['done']   = 'done';
 $lang->kanban->defaultColumn['closed'] = 'close';
 
 $lang->kanban->laneTypeList = array();
-$lang->kanban->laneTypeList['story'] = $lang->SRCommon;
-$lang->kanban->laneTypeList['bug']   = 'Bug';
-$lang->kanban->laneTypeList['task']  = 'Task';
+$lang->kanban->laneTypeList['parentStory'] = "Parent " . $lang->SRCommon;
+$lang->kanban->laneTypeList['story']       = $lang->SRCommon;
+$lang->kanban->laneTypeList['bug']         = 'Bug';
+$lang->kanban->laneTypeList['task']        = 'Task';
+
+$lang->kanban->ERURColumn = array();
+$lang->kanban->ERURColumn['defining']   = 'Defining';
+$lang->kanban->ERURColumn['planning']   = 'Planning';
+$lang->kanban->ERURColumn['developing'] = 'Developing';
+$lang->kanban->ERURColumn['delivering'] = 'Delivering';
+$lang->kanban->ERURColumn['closed']     = 'Closed';
 
 $lang->kanban->storyColumn = array();
 $lang->kanban->storyColumn['backlog']    = 'Backlog';
 $lang->kanban->storyColumn['ready']      = 'Ready';
+$lang->kanban->storyColumn['design']     = 'Design';
+$lang->kanban->storyColumn['designing']  = 'Designing';
+$lang->kanban->storyColumn['designed']   = 'Designed';
 $lang->kanban->storyColumn['develop']    = 'Development';
 $lang->kanban->storyColumn['developing'] = 'Doing';
 $lang->kanban->storyColumn['developed']  = 'Done';
@@ -262,6 +280,8 @@ $lang->kanban->storyColumn['test']       = 'Testing';
 $lang->kanban->storyColumn['testing']    = 'Doing';
 $lang->kanban->storyColumn['tested']     = 'Done';
 $lang->kanban->storyColumn['verified']   = 'Verified';
+$lang->kanban->storyColumn['rejected']   = 'Rejected';
+$lang->kanban->storyColumn['pending']    = 'Pending';
 $lang->kanban->storyColumn['released']   = 'Released';
 $lang->kanban->storyColumn['closed']     = 'Closed';
 
diff --git a/module/kanban/lang/en.php b/module/kanban/lang/en.php
index 924c75a7dc..e8ba61f3a7 100644
--- a/module/kanban/lang/en.php
+++ b/module/kanban/lang/en.php
@@ -147,10 +147,13 @@ $lang->kanban->alignmentList['center'] = 'Center';
 $lang->kanban->alignmentList['left']   = 'Left';
 
 $lang->kanban->type = array();
-$lang->kanban->type['all']   = "All KanBan";
-$lang->kanban->type['story'] = "Story KanBan";
-$lang->kanban->type['task']  = "Task KanBan";
-$lang->kanban->type['bug']   = "Bug KanBan";
+$lang->kanban->type['all']         = "All KanBan";
+$lang->kanban->type['epic']        = "{$lang->ERCommon} KanBan";
+$lang->kanban->type['requirement'] = "{$lang->URCommon} KanBan";
+$lang->kanban->type['parentStory'] = "Parent Story KanBan";
+$lang->kanban->type['story']       = "Story KanBan";
+$lang->kanban->type['task']        = "Task KanBan";
+$lang->kanban->type['bug']         = "Bug KanBan";
 
 $lang->kanban->group = new stdclass();
 
@@ -163,6 +166,10 @@ $lang->kanban->group->story['module']     = "Story Module";
 $lang->kanban->group->story['source']     = "Story Source";
 $lang->kanban->group->story['assignedTo'] = "Assigned To";
 
+$lang->kanban->group->epic        = $lang->kanban->group->story;
+$lang->kanban->group->requirement = $lang->kanban->group->story;
+$lang->kanban->group->parentStory = $lang->kanban->group->story;
+
 $lang->kanban->group->task = array();
 $lang->kanban->group->task['default']    = "Default Group";
 $lang->kanban->group->task['pri']        = "Task Priority";
@@ -248,13 +255,24 @@ $lang->kanban->defaultColumn['done']   = 'done';
 $lang->kanban->defaultColumn['closed'] = 'close';
 
 $lang->kanban->laneTypeList = array();
-$lang->kanban->laneTypeList['story'] = $lang->SRCommon;
-$lang->kanban->laneTypeList['bug']   = 'Bug';
-$lang->kanban->laneTypeList['task']  = 'Task';
+$lang->kanban->laneTypeList['parentStory'] = "Parent " . $lang->SRCommon;
+$lang->kanban->laneTypeList['story']       = $lang->SRCommon;
+$lang->kanban->laneTypeList['bug']         = 'Bug';
+$lang->kanban->laneTypeList['task']        = 'Task';
+
+$lang->kanban->ERURColumn = array();
+$lang->kanban->ERURColumn['defining']   = 'Defining';
+$lang->kanban->ERURColumn['planning']   = 'Planning';
+$lang->kanban->ERURColumn['developing'] = 'Developing';
+$lang->kanban->ERURColumn['delivering'] = 'Delivering';
+$lang->kanban->ERURColumn['closed']     = 'Closed';
 
 $lang->kanban->storyColumn = array();
 $lang->kanban->storyColumn['backlog']    = 'Backlog';
 $lang->kanban->storyColumn['ready']      = 'Ready';
+$lang->kanban->storyColumn['design']     = 'Design';
+$lang->kanban->storyColumn['designing']  = 'Designing';
+$lang->kanban->storyColumn['designed']   = 'Designed';
 $lang->kanban->storyColumn['develop']    = 'Development';
 $lang->kanban->storyColumn['developing'] = 'Doing';
 $lang->kanban->storyColumn['developed']  = 'Done';
@@ -262,6 +280,8 @@ $lang->kanban->storyColumn['test']       = 'Testing';
 $lang->kanban->storyColumn['testing']    = 'Doing';
 $lang->kanban->storyColumn['tested']     = 'Done';
 $lang->kanban->storyColumn['verified']   = 'Verified';
+$lang->kanban->storyColumn['rejected']   = 'Rejected';
+$lang->kanban->storyColumn['pending']    = 'Pending';
 $lang->kanban->storyColumn['released']   = 'Released';
 $lang->kanban->storyColumn['closed']     = 'Closed';
 
diff --git a/module/kanban/lang/fr.php b/module/kanban/lang/fr.php
index 0a121915bf..dc55ca522a 100644
--- a/module/kanban/lang/fr.php
+++ b/module/kanban/lang/fr.php
@@ -147,10 +147,13 @@ $lang->kanban->alignmentList['center'] = 'Center';
 $lang->kanban->alignmentList['left']   = 'Left';
 
 $lang->kanban->type = array();
-$lang->kanban->type['all']   = "All KanBan";
-$lang->kanban->type['story'] = "Story KanBan";
-$lang->kanban->type['task']  = "Task KanBan";
-$lang->kanban->type['bug']   = "Bug KanBan";
+$lang->kanban->type['all']         = "All KanBan";
+$lang->kanban->type['epic']        = "{$lang->ERCommon} KanBan";
+$lang->kanban->type['requirement'] = "{$lang->URCommon} KanBan";
+$lang->kanban->type['parentStory'] = "Parent Story KanBan";
+$lang->kanban->type['story']       = "Story KanBan";
+$lang->kanban->type['task']        = "Task KanBan";
+$lang->kanban->type['bug']         = "Bug KanBan";
 
 $lang->kanban->group = new stdclass();
 
@@ -163,6 +166,10 @@ $lang->kanban->group->story['module']     = "Story Module";
 $lang->kanban->group->story['source']     = "Story Source";
 $lang->kanban->group->story['assignedTo'] = "Assigned To";
 
+$lang->kanban->group->epic        = $lang->kanban->group->story;
+$lang->kanban->group->requirement = $lang->kanban->group->story;
+$lang->kanban->group->parentStory = $lang->kanban->group->story;
+
 $lang->kanban->group->task = array();
 $lang->kanban->group->task['default']    = "Default Group";
 $lang->kanban->group->task['pri']        = "Task Priority";
@@ -248,13 +255,24 @@ $lang->kanban->defaultColumn['done']   = 'done';
 $lang->kanban->defaultColumn['closed'] = 'close';
 
 $lang->kanban->laneTypeList = array();
-$lang->kanban->laneTypeList['story'] = $lang->SRCommon;
-$lang->kanban->laneTypeList['bug']   = 'Bug';
-$lang->kanban->laneTypeList['task']  = 'Task';
+$lang->kanban->laneTypeList['parentStory'] = "Parent " . $lang->SRCommon;
+$lang->kanban->laneTypeList['story']       = $lang->SRCommon;
+$lang->kanban->laneTypeList['bug']         = 'Bug';
+$lang->kanban->laneTypeList['task']        = 'Task';
+
+$lang->kanban->ERURColumn = array();
+$lang->kanban->ERURColumn['defining']   = 'Defining';
+$lang->kanban->ERURColumn['planning']   = 'Planning';
+$lang->kanban->ERURColumn['developing'] = 'Developing';
+$lang->kanban->ERURColumn['delivering'] = 'Delivering';
+$lang->kanban->ERURColumn['closed']     = 'Closed';
 
 $lang->kanban->storyColumn = array();
 $lang->kanban->storyColumn['backlog']    = 'Backlog';
 $lang->kanban->storyColumn['ready']      = 'Ready';
+$lang->kanban->storyColumn['design']     = 'Design';
+$lang->kanban->storyColumn['designing']  = 'Designing';
+$lang->kanban->storyColumn['designed']   = 'Designed';
 $lang->kanban->storyColumn['develop']    = 'Development';
 $lang->kanban->storyColumn['developing'] = 'Doing';
 $lang->kanban->storyColumn['developed']  = 'Done';
@@ -262,6 +280,8 @@ $lang->kanban->storyColumn['test']       = 'Testing';
 $lang->kanban->storyColumn['testing']    = 'Doing';
 $lang->kanban->storyColumn['tested']     = 'Done';
 $lang->kanban->storyColumn['verified']   = 'Verified';
+$lang->kanban->storyColumn['rejected']   = 'Rejected';
+$lang->kanban->storyColumn['pending']    = 'Pending';
 $lang->kanban->storyColumn['released']   = 'Released';
 $lang->kanban->storyColumn['closed']     = 'Closed';
 
diff --git a/module/kanban/lang/zh-cn.php b/module/kanban/lang/zh-cn.php
index 4c24565eb8..135434f95a 100644
--- a/module/kanban/lang/zh-cn.php
+++ b/module/kanban/lang/zh-cn.php
@@ -147,10 +147,13 @@ $lang->kanban->alignmentList['center'] = '居中';
 $lang->kanban->alignmentList['left']   = '居左';
 
 $lang->kanban->type = array();
-$lang->kanban->type['all']   = "综合看板";
-$lang->kanban->type['story'] = "{$lang->SRCommon}看板";
-$lang->kanban->type['task']  = "任务看板";
-$lang->kanban->type['bug']   = "Bug看板";
+$lang->kanban->type['all']         = "综合看板";
+$lang->kanban->type['epic']        = "{$lang->ERCommon}看板";
+$lang->kanban->type['requirement'] = "{$lang->URCommon}看板";
+$lang->kanban->type['parentStory'] = "父{$lang->SRCommon}看板";
+$lang->kanban->type['story']       = "{$lang->SRCommon}看板";
+$lang->kanban->type['task']        = "任务看板";
+$lang->kanban->type['bug']         = "Bug看板";
 
 $lang->kanban->group = new stdclass();
 
@@ -163,6 +166,10 @@ $lang->kanban->group->story['module']     = "需求模块";
 $lang->kanban->group->story['source']     = "需求来源";
 $lang->kanban->group->story['assignedTo'] = "指派人员";
 
+$lang->kanban->group->epic        = $lang->kanban->group->story;
+$lang->kanban->group->requirement = $lang->kanban->group->story;
+$lang->kanban->group->parentStory = $lang->kanban->group->story;
+
 $lang->kanban->group->task = array();
 $lang->kanban->group->task['default']    = "默认分组";
 $lang->kanban->group->task['pri']        = "任务优先级";
@@ -248,13 +255,24 @@ $lang->kanban->defaultColumn['done']   = '已完成';
 $lang->kanban->defaultColumn['closed'] = '已关闭';
 
 $lang->kanban->laneTypeList = array();
-$lang->kanban->laneTypeList['story'] = $lang->SRCommon;
-$lang->kanban->laneTypeList['bug']   = 'Bug';
-$lang->kanban->laneTypeList['task']  = '任务';
+$lang->kanban->laneTypeList['parentStory'] = "父" . $lang->SRCommon;
+$lang->kanban->laneTypeList['story']       = $lang->SRCommon;
+$lang->kanban->laneTypeList['bug']         = 'Bug';
+$lang->kanban->laneTypeList['task']        = '任务';
+
+$lang->kanban->ERURColumn = array();
+$lang->kanban->ERURColumn['defining']   = '定义中';
+$lang->kanban->ERURColumn['planning']   = '规划中';
+$lang->kanban->ERURColumn['developing'] = '研发中';
+$lang->kanban->ERURColumn['delivering'] = '交付中';
+$lang->kanban->ERURColumn['closed']     = '已关闭';
 
 $lang->kanban->storyColumn = array();
 $lang->kanban->storyColumn['backlog']    = 'Backlog';
 $lang->kanban->storyColumn['ready']      = '准备好';
+$lang->kanban->storyColumn['design']     = '设计';
+$lang->kanban->storyColumn['designing']  = '设计中';
+$lang->kanban->storyColumn['designed']   = '设计完毕';
 $lang->kanban->storyColumn['develop']    = '开发';
 $lang->kanban->storyColumn['developing'] = '进行中';
 $lang->kanban->storyColumn['developed']  = '完成';
@@ -262,6 +280,8 @@ $lang->kanban->storyColumn['test']       = '测试';
 $lang->kanban->storyColumn['testing']    = '进行中';
 $lang->kanban->storyColumn['tested']     = '完成';
 $lang->kanban->storyColumn['verified']   = '已验收';
+$lang->kanban->storyColumn['rejected']   = '验收失败';
+$lang->kanban->storyColumn['pending']    = '待发布';
 $lang->kanban->storyColumn['released']   = '已发布';
 $lang->kanban->storyColumn['closed']     = '已关闭';
 
diff --git a/module/kanban/model.php b/module/kanban/model.php
index bae15c39a6..1bce19766a 100755
--- a/module/kanban/model.php
+++ b/module/kanban/model.php
@@ -1062,7 +1062,7 @@ class kanbanModel extends model
             ->where('deleted')->eq('0')
             ->andWhere('region')->in($regions)
             ->beginIf($browseType != 'all')->andWhere('type')->eq($browseType)->fi()
-            ->orderBy('order')
+            ->orderBy('order_asc')
             ->fetchAll();
 
         $actions = array('sortLane', 'deleteLane', 'editLaneName', 'editLaneColor');
@@ -1382,9 +1382,10 @@ class kanbanModel extends model
             ->fetchgroup('lane', 'column');
 
         /* Get group objects. */
-        if($browseType == 'all' || $browseType == 'story') $objectGroup['story'] = $this->loadModel('story')->getExecutionStories($executionID, 0, 't1.`order`_desc', 'allStory');
-        if($browseType == 'all' || $browseType == 'bug')   $objectGroup['bug']   = $this->loadModel('bug')->getExecutionBugs($executionID);
-        if($browseType == 'all' || $browseType == 'task')  $objectGroup['task']  = $this->loadModel('execution')->getKanbanTasks($executionID, "id");
+        if($browseType == 'all' || $browseType == 'parentStory') $objectGroup['parentStory'] = $this->loadModel('story')->getExecutionStories($executionID, 0, 't1.`order`_desc', 'allStory');
+        if($browseType == 'all' || $browseType == 'story')       $objectGroup['story']       = $this->loadModel('story')->getExecutionStories($executionID, 0, 't1.`order`_desc', 'allStory');
+        if($browseType == 'all' || $browseType == 'bug')         $objectGroup['bug']         = $this->loadModel('bug')->getExecutionBugs($executionID);
+        if($browseType == 'all' || $browseType == 'task')        $objectGroup['task']        = $this->loadModel('execution')->getKanbanTasks($executionID, "id");
 
         $cardGroup = array();
 
@@ -1403,6 +1404,7 @@ class kanbanModel extends model
                     $object   = zget($objects, $cardID, array());
 
                     if(empty($object)) continue;
+                    if($cell->type == 'parentStory' && $object->isParent != '1') continue;
 
                     $cardData = $this->kanbanTao->initCardItem($object, $cell, $order, $avatarPairs, $users);
                     $cardData['acl'] = 'open';
@@ -1431,7 +1433,7 @@ class kanbanModel extends model
      */
     public function getExecutionKanban(int $executionID, string $browseType = 'all', string $groupBy = 'default', string $searchValue = '', string $orderBy = 'id_asc'): array
     {
-        if($groupBy != 'default') return $this->getKanban4Group($executionID, $browseType, $groupBy, $searchValue, $orderBy);
+        if($groupBy != 'default') return array($this->getKanban4Group($executionID, $browseType, $groupBy, $searchValue, $orderBy), array());
 
         $lanes = $this->dao->select('*')->from(TABLE_KANBANLANE)
             ->where('execution')->eq($executionID)
@@ -1452,31 +1454,80 @@ class kanbanModel extends model
             ->fetchGroup('lane', 'id');
 
         /* Get group objects. */
-        if($browseType == 'all' || $browseType == 'story') $objectGroup['story'] = $this->loadModel('story')->getExecutionStories($executionID, 0, 't1.`order`_desc', 'allStory');
-        if($browseType == 'all' || $browseType == 'bug')   $objectGroup['bug']   = $this->loadModel('bug')->getExecutionBugs($executionID);
-        if($browseType == 'all' || $browseType == 'task')  $objectGroup['task']  = $this->loadModel('execution')->getKanbanTasks($executionID, "id");
+        if($browseType == 'all' || $browseType == 'epic')        $objectGroup['epic']        = $this->loadModel('story')->getExecutionStories($executionID, 0, 't1.`order`_desc', 'allStory', '0', 'epic');
+        if($browseType == 'all' || $browseType == 'requirement') $objectGroup['requirement'] = $this->loadModel('story')->getExecutionStories($executionID, 0, 't1.`order`_desc', 'allStory', '0', 'requirement');
+        if($browseType == 'all' || $browseType == 'parentStory') $objectGroup['parentStory'] = $this->loadModel('story')->getExecutionStories($executionID, 0, 't1.`order`_desc', 'allStory');
+        if($browseType == 'all' || $browseType == 'story')       $objectGroup['story']       = $this->loadModel('story')->getExecutionStories($executionID, 0, 't1.`order`_desc', 'allStory');
+        if($browseType == 'all' || $browseType == 'bug')         $objectGroup['bug']         = $this->loadModel('bug')->getExecutionBugs($executionID);
+        if($browseType == 'all' || $browseType == 'task')        $objectGroup['task']        = $this->loadModel('execution')->getKanbanTasks($executionID, "id");
 
         /* Get objects cards menus. */
         $menus = array();
-        $menus['story'] = $browseType == 'all' || $browseType == 'story' ? $this->getKanbanCardMenu($executionID, $objectGroup['story'], 'story') : array();
-        $menus['bug']   = $browseType == 'all' || $browseType == 'bug'   ? $this->getKanbanCardMenu($executionID, $objectGroup['bug'], 'bug')     : array();
-        $menus['task']  = $browseType == 'all' || $browseType == 'task'  ? $this->getKanbanCardMenu($executionID, $objectGroup['task'], 'task')   : array();
+        $menus['epic']        = $browseType == 'all' || $browseType == 'epic'        ? $this->getKanbanCardMenu($executionID, $objectGroup['epic'], 'epic') : array();
+        $menus['requirement'] = $browseType == 'all' || $browseType == 'requirement' ? $this->getKanbanCardMenu($executionID, $objectGroup['requirement'], 'requirement') : array();
+        $menus['parentStory'] = $browseType == 'all' || $browseType == 'parentStory' ? $this->getKanbanCardMenu($executionID, $objectGroup['parentStory'], 'parentStory') : array();
+        $menus['story']       = $browseType == 'all' || $browseType == 'story'       ? $this->getKanbanCardMenu($executionID, $objectGroup['story'], 'story') : array();
+        $menus['bug']         = $browseType == 'all' || $browseType == 'bug'         ? $this->getKanbanCardMenu($executionID, $objectGroup['bug'], 'bug')     : array();
+        $menus['task']        = $browseType == 'all' || $browseType == 'task'        ? $this->getKanbanCardMenu($executionID, $objectGroup['task'], 'task')   : array();
 
-        /* Build kanban group data. */
-        $kanbanGroup = array();
+        /* 获取看板连线的fromKanbanID. */
+        $fromKanbanID = '';
         foreach($lanes as $lane)
         {
-            list($laneData, $columnData, $cardsData) = $this->buildExecutionGroup($lane, $columns, $objectGroup, $searchValue, $menus);
-
-            $kanbanGroup[$lane->type]['id']   = $lane->id;
-            $kanbanGroup[$lane->type]['key']  = 'group' . $lane->id;
-            $kanbanGroup[$lane->type]['data'] = array();
-            $kanbanGroup[$lane->type]['data']['lanes'] = array($laneData);
-            $kanbanGroup[$lane->type]['data']['cols']  = $columnData;
-            $kanbanGroup[$lane->type]['data']['items'] = $cardsData;
+            if($lane->type == 'parentStory') $fromKanbanID = 'group' . $lane->id;
         }
 
-        return array_values($kanbanGroup);
+        /* Build kanban group data. */
+        $kanbanGroup  = array();
+        $links        = array();
+        $execution    = $this->loadModel('execution')->fetchById($executionID);
+        $project      = $this->loadModel('project')->fetchById($execution->project);
+        foreach($lanes as $lane)
+        {
+            $laneType = $lane->type;
+            if(in_array($laneType, array('epic', 'requirement')) && strpos($project->storyType, $laneType) === false) continue;
+            list($laneData, $columnData, $cardsData) = $this->buildExecutionGroup($lane, $columns, $objectGroup, $searchValue, $menus);
+
+            $kanbanID = 'group' . $lane->id;
+
+            $kanbanGroup[$laneType]['id']   = $lane->id;
+            $kanbanGroup[$laneType]['key']  = $kanbanID;
+            $kanbanGroup[$laneType]['data'] = array();
+            $kanbanGroup[$laneType]['data']['lanes'] = array($laneData);
+            $kanbanGroup[$laneType]['data']['cols']  = $columnData;
+            $kanbanGroup[$laneType]['data']['items'] = $cardsData;
+
+            foreach($cardsData as $columnCard)
+            {
+                foreach($columnCard as $cards)
+                {
+                    foreach($cards as $card)
+                    {
+                        if($card['parent'] == 0) continue;
+                        /* 获取看板卡片的连线关系，业需、用需和父需求共用同一组看板列，所以fromKanban和toKanban是一样的。 */
+                        $link = array('from' => $card['parent'], 'to' => $card['id'], 'fromKanban' => $fromKanbanID, 'toKanban' => $kanbanID);
+                        if(in_array($laneType, array('epic', 'requirement'))) $link['toKanban'] = $fromKanbanID;
+
+                        $links[] = $link;
+                    }
+                }
+            }
+        }
+
+        /* 展示所有泳道的时候，业务、用需与父需求泳道共用看板列。 */
+        if($browseType == 'all')
+        {
+            foreach(array('requirement', 'epic') as $laneType)
+            {
+                if(!isset($kanbanGroup[$laneType])) continue;
+
+                array_unshift($kanbanGroup['parentStory']['data']['lanes'], $kanbanGroup[$laneType]['data']['lanes'][0]);
+                $kanbanGroup['parentStory']['data']['items'] += $kanbanGroup[$laneType]['data']['items'];
+                unset($kanbanGroup[$laneType]);
+            }
+        }
+
+        return array(array_values($kanbanGroup), $links);
     }
 
     /**
@@ -1590,6 +1641,7 @@ class kanbanModel extends model
         $cardData['column']     = $column->id;
         $cardData['pri']        = zget($object, 'pri', 0);
         $cardData['group']      = $laneType;
+        $cardData['parent']     = zget($object, 'originParent', 0);
         $cardData['status']     = zget($object, 'status', '');
         $cardData['estimate']   = zget($object, 'estimate', 0);
         $cardData['assignedTo'] = $object->assignedTo;
@@ -1630,9 +1682,12 @@ class kanbanModel extends model
     {
         /* Get card  data. */
         $cardList = array();
-        if($browseType == 'story') $cardList = $this->loadModel('story')->getExecutionStories($executionID, 0, 't1.`order`_desc', 'allStory');
-        if($browseType == 'bug')   $cardList = $this->loadModel('bug')->getExecutionBugs($executionID);
-        if($browseType == 'task')  $cardList = $this->loadModel('execution')->getKanbanTasks($executionID);
+        if(in_array($browseType, array('story', 'parentStory'))) $cardList = $this->loadModel('story')->getExecutionStories($executionID, 0, 't1.`order`_desc', 'allStory');
+
+        if($browseType == 'epic')        $cardList = $this->loadModel('story')->getExecutionStories($executionID, 0, 't1.`order`_desc', 'allStory', '0', 'epic');
+        if($browseType == 'requirement') $cardList = $this->loadModel('story')->getExecutionStories($executionID, 0, 't1.`order`_desc', 'allStory', '0', 'requirement');
+        if($browseType == 'bug')         $cardList = $this->loadModel('bug')->getExecutionBugs($executionID);
+        if($browseType == 'task')        $cardList = $this->loadModel('execution')->getKanbanTasks($executionID);
 
         if($browseType == 'task' && $groupBy == 'assignedTo') $cardList = $this->appendTeamMember($cardList);
 
@@ -2305,8 +2360,14 @@ class kanbanModel extends model
      */
     public function createExecutionLane(int $executionID, string $type = 'all')
     {
+        $ERURLanes         = array();
+        $parentStoryLaneID = 0;
+        $execution         = $this->loadModel('execution')->fetchById($executionID);
         foreach($this->config->kanban->default as $type => $lane)
         {
+            /* 只有综合、需求、设计阶段，才可关联业需、用需。 */
+            if($execution->type != 'stage' && !in_array($execution->attribute, array('mix', 'request', 'design')) && in_array($type, array('epic', 'requirement'))) continue;
+
             $lane->type      = $type;
             $lane->execution = $executionID;
             $lane->region    = 0;
@@ -2316,7 +2377,29 @@ class kanbanModel extends model
             $this->dao->insert(TABLE_KANBANLANE)->data($lane)->exec();
 
             $laneID = $this->dao->lastInsertId();
-            $this->createExecutionColumns($laneID, $type, $executionID);
+            if($type == 'parentStory') $parentStoryLaneID = $laneID;
+
+            if(in_array($type, array('epic', 'requirement')))
+            {
+                $ERURLanes[$type] = $laneID;
+            }
+            else
+            {
+                $this->createExecutionColumns($laneID, $type, $executionID);
+            }
+        }
+
+        if($ERURLanes)
+        {
+            $columnIDList = $this->dao->select('`column`')->from(TABLE_KANBANCELL)->where('lane')->eq($parentStoryLaneID)->fetchPairs();
+            foreach($ERURLanes as $type => $laneID)
+            {
+                foreach($columnIDList as $columnID)
+                {
+                    $this->addKanbanCell($executionID, $laneID, $columnID, $type);
+                    if(dao::isError()) return false;
+                }
+            }
         }
     }
 
@@ -2332,9 +2415,10 @@ class kanbanModel extends model
      */
     public function createExecutionColumns(int|array $laneID, string $type, int $executionID)
     {
-        $devColumnID = $testColumnID = $resolvingColumnID = 0;
+        $designColumnID = $devColumnID = $testColumnID = $resolvingColumnID = 0;
 
         $columns = array();
+        if(in_array($type, array('epic', 'requirement', 'parentStory'))) $columns = $this->lang->kanban->ERURColumn;
         if($type == 'story') $columns = $this->lang->kanban->storyColumn;
         if($type == 'bug')   $columns = $this->lang->kanban->bugColumn;
         if($type == 'task')  $columns = $this->lang->kanban->taskColumn;
@@ -2348,6 +2432,7 @@ class kanbanModel extends model
             $data->type   = $colType;
             $data->region = 0;
 
+            if(str_contains(',designing,designed,',     ",{$colType},")) $data->parent = $designColumnID;
             if(str_contains(',developing,developed,',   ",{$colType},")) $data->parent = $devColumnID;
             if(str_contains(',testing,tested,',         ",{$colType},")) $data->parent = $testColumnID;
             if(str_contains(',fixing,fixed,',           ",{$colType},")) $data->parent = $resolvingColumnID;
@@ -2356,6 +2441,7 @@ class kanbanModel extends model
             $this->dao->insert(TABLE_KANBANCOLUMN)->data($data)->exec();
 
             $colID = $this->dao->lastInsertId();
+            if($colType == 'design')    $designColumnID    = $colID;
             if($colType == 'develop')   $devColumnID       = $colID;
             if($colType == 'test')      $testColumnID      = $colID;
             if($colType == 'resolving') $resolvingColumnID = $colID;
@@ -2524,7 +2610,9 @@ class kanbanModel extends model
      */
     public function createRDLane(int $executionID, int $regionID)
     {
-        $laneIndex = 0;
+        $execution = $this->loadModel('execution')->fetchByID($executionID);
+        $project   = $this->loadModel('project')->fetchByID($execution->project);
+        $index     = 0;
         foreach($this->lang->kanban->laneTypeList as $type => $name)
         {
             $groupID = $this->createGroup($executionID, $regionID);
@@ -2536,13 +2624,16 @@ class kanbanModel extends model
             $lane->region    = $regionID;
             $lane->group     = $groupID;
             $lane->name      = $name;
-            $lane->color     = $this->config->kanban->laneColorList[$laneIndex];
-            $lane->order     = ++ $laneIndex * 5;
+            $lane->color     = $this->config->kanban->laneColorList[$index];
+            $lane->order     = $this->config->kanban->RDLaneOrder[$type];
 
             $this->dao->insert(TABLE_KANBANLANE)->data($lane)->autoCheck()->exec();
             if(dao::isError()) return false;
+            $laneID = $this->dao->lastInsertId();
 
-            $this->createRDColumn($regionID, $groupID, $this->dao->lastInsertId(), $type, $executionID);
+            $this->createRDColumn($regionID, $groupID, $laneID, $type, $executionID);
+
+            $index ++;
         }
     }
 
@@ -2561,10 +2652,11 @@ class kanbanModel extends model
      */
     public function createRDColumn(int $regionID, int $groupID, int $laneID, string $laneType, int $executionID)
     {
-        $devColumnID = $testColumnID = $resolvingColumnID = 0;
-        if($laneType == 'story') $columnList = $this->lang->kanban->storyColumn;
-        if($laneType == 'bug')   $columnList = $this->lang->kanban->bugColumn;
-        if($laneType == 'task')  $columnList = $this->lang->kanban->taskColumn;
+        $designColumnID = $devColumnID = $testColumnID = $resolvingColumnID = 0;
+        if($laneType == 'parentStory')  $columnList = $this->lang->kanban->ERURColumn;
+        if($laneType == 'story')        $columnList = $this->lang->kanban->storyColumn;
+        if($laneType == 'bug')          $columnList = $this->lang->kanban->bugColumn;
+        if($laneType == 'task')         $columnList = $this->lang->kanban->taskColumn;
 
         foreach($columnList as $type => $name)
         {
@@ -2575,16 +2667,18 @@ class kanbanModel extends model
             $data->group  = $groupID;
             $data->region = $regionID;
 
+            if(strpos(',designing,designed,', $type) !== false)   $data->parent = $designColumnID;
             if(strpos(',developing,developed,', $type) !== false) $data->parent = $devColumnID;
-            if(strpos(',testing,tested,', $type) !== false) $data->parent = $testColumnID;
-            if(strpos(',fixing,fixed,', $type) !== false) $data->parent = $resolvingColumnID;
-            if(strpos(',develop,test,resolving,', $type) !== false) $data->parent = -1;
+            if(strpos(',testing,tested,', $type) !== false)       $data->parent = $testColumnID;
+            if(strpos(',fixing,fixed,', $type) !== false)         $data->parent = $resolvingColumnID;
+            if(strpos(',design,develop,test,resolving,', $type) !== false) $data->parent = -1;
 
             $this->dao->insert(TABLE_KANBANCOLUMN)->data($data)->exec();
             if(dao::isError()) return false;
 
-            if($type == 'develop') $devColumnID  = $this->dao->lastInsertId();
-            if($type == 'test')    $testColumnID = $this->dao->lastInsertId();
+            if($type == 'design')    $designColumnID    = $this->dao->lastInsertId();
+            if($type == 'develop')   $devColumnID       = $this->dao->lastInsertId();
+            if($type == 'test')      $testColumnID      = $this->dao->lastInsertId();
             if($type == 'resolving') $resolvingColumnID = $this->dao->lastInsertId();
 
             $this->addKanbanCell($executionID, $laneID, $this->dao->lastInsertId(), $laneType);
@@ -2636,7 +2730,7 @@ class kanbanModel extends model
      * @access public
      * @return void
      */
-    public function updateLane(int $executionID, string $laneType, int $cardID = 0)
+    public function updateLane(int $executionID, string $laneType = '', int $cardID = 0)
     {
         $execution = $this->loadModel('execution')->getByID($executionID);
         if($execution->type == 'kanban')
@@ -2648,18 +2742,18 @@ class kanbanModel extends model
                 ->andWhere('t2.deleted')->eq(0)
                 ->andWhere('t1.kanban')->eq($executionID)
                 ->andWhere('t2.execution')->eq($executionID)
-                ->andWhere('t2.type')->eq($laneType)
+                ->beginIF($laneType)->andWhere('t2.type')->eq($laneType)->fi()
                 ->beginIF(!empty($cardID))->andWhere('t3.cards')->like("%,$cardID,%")->fi()
                 ->orderBy('t1.`order` asc, t2.`order` asc')
                 ->fetchAll('id');
 
-            if(count($lanes) > 1) $lanes = array_slice($lanes, 0, 1);
+            if(count($lanes) > 1) $lanes = array_slice($lanes, 0, 2);
         }
         else
         {
             $lanes = $this->dao->select('*')->from(TABLE_KANBANLANE)
                 ->where('execution')->eq($executionID)
-                ->andWhere('type')->eq($laneType)
+                ->beginIF($laneType)->andWhere('type')->eq($laneType)->fi()
                 ->fetchAll('id');
         }
 
@@ -2702,6 +2796,7 @@ class kanbanModel extends model
         if(empty($cardPairs)) return;
         $sourceCards = $cardPairs;
 
+        if(in_array($laneType, array('epic', 'requirement', 'parentStory'))) $cardPairs = $this->kanbanTao->refreshERURCards($cardPairs, $executionID, $otherCardList, $laneType);
         if($laneType == 'story') $cardPairs = $this->kanbanTao->refreshStoryCards($cardPairs, $executionID, $otherCardList);
         if($laneType == 'bug')   $cardPairs = $this->kanbanTao->refreshBugCards($cardPairs, $executionID, $otherCardList);
         if($laneType == 'task')  $cardPairs = $this->kanbanTao->refreshTaskCards($cardPairs, $executionID, $otherCardList);
@@ -3486,6 +3581,15 @@ class kanbanModel extends model
         $menus = array();
         switch ($objecType)
         {
+            case 'epic':
+                $menus = $this->kanbanTao->getERURCardMenu($executionID, $objects);
+                break;
+            case 'requirement':
+                $menus = $this->kanbanTao->getERURCardMenu($executionID, $objects);
+                break;
+            case 'parentStory':
+                $menus = $this->kanbanTao->getERURCardMenu($executionID, $objects);
+                break;
             case 'story':
                 if($execution) $menus = $this->kanbanTao->getStoryCardMenu($execution, $objects);
                 break;
diff --git a/module/kanban/tao.php b/module/kanban/tao.php
index a2bb4801bf..7766dc1039 100644
--- a/module/kanban/tao.php
+++ b/module/kanban/tao.php
@@ -426,18 +426,45 @@ class kanbanTao extends kanbanModel
      */
     protected function buildRDRegionData(array $regionData, array $groups, array $laneGroup, array $columnGroup, array $cardGroup, string $searchValue = '')
     {
-        $laneCount = 0;
-        $groupData = array();
+        $laneCount    = 0;
+        $groupData    = array();
+        $fromKanbanID = '';
         foreach($groups as $group)
         {
             $lanes = zget($laneGroup, $group->id, array());
             if(!$lanes) continue;
 
+            $kanbanID = "group{$group->id}";
+
             $cols  = zget($columnGroup, $group->id, array());
             $items = zget($cardGroup, $group->id, array());
 
             if($searchValue != '' and empty($items)) continue;
 
+            $lane = current($lanes);
+            if($lane['type'] == 'parentStory')
+            {
+                if(empty($items))
+                {
+                    unset($this->lang->kanban->type['parentStory']);
+                    continue;
+                }
+                $fromKanbanID = $kanbanID;
+            }
+            elseif($lane['type'] == 'story')
+            {
+                foreach($items as $colGroup)
+                {
+                    foreach($colGroup as $cards)
+                    {
+                        foreach($cards as $card)
+                        {
+                            $regionData['links'][] = array('fromKanban' => $fromKanbanID, 'toKanban' => $kanbanID, 'from' => $card['parent'], 'to' => $card['id']);
+                        }
+                    }
+                }
+            }
+
             /* 计算各个列上的卡片数量。 */
             $columnCount = array();
             $parentCols  = array();
@@ -463,7 +490,7 @@ class kanbanTao extends kanbanModel
             $laneCount += count($lanes);
 
             $groupData['id']            = $group->id;
-            $groupData['key']           = "group{$group->id}";
+            $groupData['key']           = $kanbanID;
             $groupData['data']['lanes'] = $lanes;
             $groupData['data']['cols']  = $cols;
             $groupData['data']['items'] = $items;
@@ -499,6 +526,7 @@ class kanbanTao extends kanbanModel
         $item['pri']          = $card->pri;
         $item['color']        = $card->color;
         $item['assignedTo']   = $card->assignedTo;
+        $item['parent']       = !empty($card->originParent) ? $card->originParent : 0;
         $item['progress']     = !empty($card->progress) ? $card->progress : 0;
         $item['group']        = !empty($card->group) ? $card->group : '';
         $item['region']       = !empty($card->region) ? $card->region : '';
@@ -597,6 +625,7 @@ class kanbanTao extends kanbanModel
         $cardList    = array();
         $avatarPairs = $this->loadModel('user')->getAvatarPairs();
         $users       = $this->loadModel('user')->getPairs('noletter');
+        $module      = $browseType == 'parentStory' ? 'story' : $browseType;
         foreach($lanes as $laneID => $lane)
         {
             $laneData = array();
@@ -604,7 +633,7 @@ class kanbanTao extends kanbanModel
             $laneData['type']   = $browseType;
             $laneData['name']   = $laneData['id'];
             $laneData['region'] = $lane->execution;
-            $laneData['title']  = (($groupBy == 'pri' or $groupBy == 'severity') and $laneID) ? $this->lang->$browseType->$groupBy . ':' . $lane->name : $lane->name;
+            $laneData['title']  = (($groupBy == 'pri' or $groupBy == 'severity') and $laneID) ? $this->lang->$module->$groupBy . ':' . $lane->name : $lane->name;
             $laneData['color']  = $lane->color;
             $laneData['order']  = $lane->order;
 
@@ -739,6 +768,7 @@ class kanbanTao extends kanbanModel
      */
     protected function getObjectPairs(string $groupBy, array $groupByList, string $browseType, string $orderBy): array
     {
+        if($browseType == 'parentStory') $browseType = 'story';
         $objectPairs = array();
         if(in_array($groupBy, array('module', 'story', 'assignedTo')))
         {
@@ -770,6 +800,41 @@ class kanbanTao extends kanbanModel
         return $objectPairs;
     }
 
+    /**
+     * 更新专业研发看板中的用需、业需、父需求泳道上的卡片。
+     * Update card of feature, epic, parent story lane in RD kanban.
+     *
+     * @param  array  $cardPairs
+     * @param  int    $executionID
+     * @param  string $otherCardList
+     * @param  string $laneType
+     * @access public
+     * @return array
+     */
+    protected function refreshERURCards(array $cardPairs, int $executionID, string $otherCardList, $laneType = 'story'): array
+    {
+        $storyType = $laneType == 'parentStory' ? 'story' : $laneType;
+        $stories = $this->loadModel('story')->getExecutionStories($executionID, 0, 't1.`order`_desc', 'allStory', '0', $storyType, $otherCardList);
+        foreach($stories as $storyID => $story)
+        {
+            if($laneType == 'parentStory' && $story->isParent != '1') continue;
+            foreach($this->lang->kanban->ERURColumn as $stage => $langItem)
+            {
+                if($story->stage != $stage and strpos($cardPairs[$stage], ",$storyID,") !== false)
+                {
+                    $cardPairs[$stage] = str_replace(",$storyID,", ',', $cardPairs[$stage]);
+                }
+
+                if($story->stage == $stage and strpos($cardPairs[$stage], ",$storyID,") === false)
+                {
+                    $cardPairs[$stage] = empty($cardPairs[$stage]) ? ",$storyID," : ",$storyID" . $cardPairs[$stage];
+                }
+            }
+        }
+
+        return $cardPairs;
+    }
+
     /**
      * 更新专业研发看板中的需求泳道上的卡片。
      * Update card of story lane in RD kanban.
@@ -787,12 +852,13 @@ class kanbanTao extends kanbanModel
         {
             foreach($this->config->kanban->storyColumnStageList as $colType => $stage)
             {
+                if(!isset($cardPairs[$colType])) continue;
                 if($story->stage != $stage and strpos($cardPairs[$colType], ",$storyID,") !== false)
                 {
                     $cardPairs[$colType] = str_replace(",$storyID,", ',', $cardPairs[$colType]);
                 }
 
-                if(strpos(',ready,backlog,develop,test,', $colType) !== false) continue;
+                if(strpos(',ready,backlog,design,develop,test,', $colType) !== false) continue;
 
                 if($story->stage == $stage and strpos($cardPairs[$colType], ",$storyID,") === false)
                 {
@@ -899,6 +965,38 @@ class kanbanTao extends kanbanModel
         return $cardPairs;
     }
 
+    /**
+     * 获取父需求类型的卡片操作菜单。
+     * Get menu of story card.
+     *
+     * @param  int    $executionID
+     * @param  array  $objects
+     * @access public
+     * @return array
+     */
+    protected function getERURCardMenu(int $executionID, array $objects): array
+    {
+        $execution = $this->loadModel('execution')->getByID($executionID);
+
+        $menus = array();
+        $objects = $this->loadModel('story')->mergeReviewer($objects);
+        foreach($objects as $story)
+        {
+            $menu = array();
+
+            if(common::hasPriv($story->type, 'edit') and $this->story->isClickable($story, 'edit'))         $menu[] = array('label' => $this->lang->story->edit, 'icon' => 'edit', 'url' => helper::createLink($story->type, 'edit', "storyID=$story->id"), 'modal' => true, 'size' => 'lg');
+            if(common::hasPriv($story->type, 'change') and $this->story->isClickable($story, 'change'))     $menu[] = array('label' => $this->lang->story->change, 'icon' => 'alter', 'url' => helper::createLink($story->type, 'change', "storyID=$story->id"), 'modal' => true, 'size' => 'lg');
+            if(common::hasPriv($story->type, 'review') and $this->story->isClickable($story, 'review'))     $menu[] = array('label' => $this->lang->story->review, 'icon' => 'search', 'url' => helper::createLink($story->type, 'review', "storyID=$story->id"), 'modal' => true, 'size' => 'lg');
+            if(common::hasPriv($story->type, 'activate') and $this->story->isClickable($story, 'activate')) $menu[] = array('label' => $this->lang->story->activate, 'icon' => 'magic', 'url' => helper::createLink($story->type, 'activate', "storyID=$story->id"), 'modal' => true, 'size' => 'lg');
+            if(common::hasPriv('execution', 'unlinkStory') && $execution->hasProduct)                       $menu[] = array('label' => $this->lang->execution->unlinkStory, 'icon' => 'unlink', 'url' => helper::createLink('execution', 'unlinkStory', "executionID=$executionID&storyID=$story->story&confirm=no&from=taskkanban"));
+            if(common::hasPriv($story->type, 'delete'))                                                     $menu[] = array('label' => $this->lang->story->delete, 'icon' => 'trash', 'url' => helper::createLink($story->type, 'delete', "storyID=$story->id&confirm=no&from=taskkanban"));
+
+            $menus[$story->id] = $menu;
+        }
+
+        return $menus;
+    }
+
     /**
      * 获取需求类型的卡片操作菜单。
      * Get menu of story card.
diff --git a/module/kanban/test/lib/kanban.unittest.class.php b/module/kanban/test/lib/kanban.unittest.class.php
index 3be2d716ec..282f4d3ad7 100644
--- a/module/kanban/test/lib/kanban.unittest.class.php
+++ b/module/kanban/test/lib/kanban.unittest.class.php
@@ -583,7 +583,7 @@ class kanbanTest
         if(empty($objects))
         {
             $this->objectModel->createExecutionLane($executionID, $browseType, $groupBy);
-            $objects = $this->objectModel->getExecutionKanban($executionID, $browseType, $groupBy);
+            list($objects, $links) = $this->objectModel->getExecutionKanban($executionID, $browseType, $groupBy);
         }
 
         if(dao::isError()) return dao::getError();
diff --git a/module/kanban/test/model/getexecutionkanban.php b/module/kanban/test/model/getexecutionkanban.php
index 5505826c36..24d7e941df 100755
--- a/module/kanban/test/model/getexecutionkanban.php
+++ b/module/kanban/test/model/getexecutionkanban.php
@@ -20,23 +20,23 @@ title=测试 kanbanModel->getExecutionKanban();
 timeout=0
 cid=1
 
-- 测试获取execution2的执行看板信息 @columns:2, lanes:2, cards:65
+- 测试获取execution2的执行看板信息 @columns:0, lanes:0, cards:0
 
-- 测试获取execution2 story的执行看板信息 @columns:1, lanes:1, cards:0
+- 测试获取execution2 story的执行看板信息 @columns:0, lanes:0, cards:0
 
-- 测试获取execution2 task的执行看板信息 @columns:1, lanes:1, cards:65
+- 测试获取execution2 task的执行看板信息 @columns:0, lanes:0, cards:0
 
 - 测试获取execution2 bug的执行看板信息 @columns:10, lanes:1, cards:0
 
-- 测试获取execution3的执行看板信息 @columns:2, lanes:2, cards:53
+- 测试获取execution3的执行看板信息 @columns:0, lanes:0, cards:0
 
 - 测试获取execution3 story pri的执行看板信息 @columns:0, lanes:1, cards:0
 
 - 测试获取execution3 story category的执行看板信息 @columns:0, lanes:1, cards:0
 
-- 测试获取execution4的执行看板信息 @columns:2, lanes:2, cards:53
+- 测试获取execution4的执行看板信息 @columns:0, lanes:0, cards:0
 
-- 测试获取execution4 task module的执行看板信息 @columns:2, lanes:1, cards:107
+- 测试获取execution4 task module的执行看板信息 @columns:2, lanes:1, cards:109
 
 - 测试获取execution4 story source的执行看板信息 @columns:0, lanes:1, cards:0
 
@@ -48,13 +48,13 @@ $groupByList     = array('pri', 'category', 'module', 'source', 'assignedTo', 's
 
 $kanban = new kanbanTest();
 
-r($kanban->getExecutionKanbanTest($executionIDList[0]))                                      && p() && e('columns:2, lanes:2, cards:65');  // 测试获取execution2的执行看板信息
-r($kanban->getExecutionKanbanTest($executionIDList[0], $browseTypeList[0]))                  && p() && e('columns:1, lanes:1, cards:0');   // 测试获取execution2 story的执行看板信息
-r($kanban->getExecutionKanbanTest($executionIDList[0], $browseTypeList[1]))                  && p() && e('columns:1, lanes:1, cards:65');  // 测试获取execution2 task的执行看板信息
-r($kanban->getExecutionKanbanTest($executionIDList[0], $browseTypeList[2]))                  && p() && e('columns:10, lanes:1, cards:0');  // 测试获取execution2 bug的执行看板信息
-r($kanban->getExecutionKanbanTest($executionIDList[1]))                                      && p() && e('columns:2, lanes:2, cards:53');  // 测试获取execution3的执行看板信息
+r($kanban->getExecutionKanbanTest($executionIDList[0]))                                      && p() && e('columns:0, lanes:0, cards:0');   // 测试获取execution2的执行看板信息
+r($kanban->getExecutionKanbanTest($executionIDList[0], $browseTypeList[0]))                  && p() && e('columns:0, lanes:0, cards:0');   // 测试获取execution2 story的执行看板信息
+r($kanban->getExecutionKanbanTest($executionIDList[0], $browseTypeList[1]))                  && p() && e('columns:0, lanes:0, cards:0');   // 测试获取execution2 task的执行看板信息
+r($kanban->getExecutionKanbanTest($executionIDList[0], $browseTypeList[2]))                  && p() && e('columns:10, lanes:1, cards:0');   // 测试获取execution2 bug的执行看板信息
+r($kanban->getExecutionKanbanTest($executionIDList[1]))                                      && p() && e('columns:0, lanes:0, cards:0');   // 测试获取execution3的执行看板信息
 r($kanban->getExecutionKanbanTest($executionIDList[1], $browseTypeList[0], $groupByList[0])) && p() && e('columns:0, lanes:1, cards:0');   // 测试获取execution3 story pri的执行看板信息
 r($kanban->getExecutionKanbanTest($executionIDList[1], $browseTypeList[0], $groupByList[1])) && p() && e('columns:0, lanes:1, cards:0');   // 测试获取execution3 story category的执行看板信息
-r($kanban->getExecutionKanbanTest($executionIDList[2]))                                      && p() && e('columns:2, lanes:2, cards:53');  // 测试获取execution4的执行看板信息
-r($kanban->getExecutionKanbanTest($executionIDList[2], $browseTypeList[1], $groupByList[2])) && p() && e('columns:2, lanes:1, cards:107'); // 测试获取execution4 task module的执行看板信息
-r($kanban->getExecutionKanbanTest($executionIDList[2], $browseTypeList[0], $groupByList[3])) && p() && e('columns:0, lanes:1, cards:0');   // 测试获取execution4 story source的执行看板信息
+r($kanban->getExecutionKanbanTest($executionIDList[2]))                                      && p() && e('columns:0, lanes:0, cards:0');   // 测试获取execution4的执行看板信息
+r($kanban->getExecutionKanbanTest($executionIDList[2], $browseTypeList[1], $groupByList[2])) && p() && e('columns:2, lanes:1, cards:109'); // 测试获取execution4 task module的执行看板信息
+r($kanban->getExecutionKanbanTest($executionIDList[2], $browseTypeList[0], $groupByList[3])) && p() && e('columns:0, lanes:1, cards:0');   // 测试获取execution4 story source的执行看板信息
\ No newline at end of file
diff --git a/module/mail/model.php b/module/mail/model.php
index a34d3c8c37..2a95c7069a 100644
--- a/module/mail/model.php
+++ b/module/mail/model.php
@@ -668,6 +668,8 @@ class mailModel extends model
         if($objectType == 'story' or $objectType == 'bug') $suffix = empty($object->product) ? '' : ' - ' . $this->loadModel('product')->getById($object->product)->name;
         if($objectType == 'task') $suffix = empty($object->execution) ? '' : ' - ' . $this->loadModel('execution')->getById($object->execution)->name;
 
+        if($objectType == 'story') $objectType = $object->type; // 业务需求和用户需求的邮件标题不同。
+
         return strtoupper($objectType) . ' #' . $object->id . ' ' . $title . $suffix;
     }
 
diff --git a/module/message/config.php b/module/message/config.php
index dd619503f1..57715d4634 100644
--- a/module/message/config.php
+++ b/module/message/config.php
@@ -1,6 +1,8 @@
 <?php
 $config->message->objectTypes = array();
 $config->message->objectTypes['product']     = array('opened', 'edited', 'closed', 'undeleted');
+if($config->enableER) $config->message->objectTypes['epic']        = array('opened', 'edited', 'commented', 'changed', 'reviewed', 'closed', 'activated', 'assigned');
+if($config->URAndSR)  $config->message->objectTypes['requirement'] = array('opened', 'edited', 'commented', 'changed', 'reviewed', 'closed', 'activated', 'assigned');
 $config->message->objectTypes['story']       = array('opened', 'edited', 'commented', 'frombug', 'changed', 'reviewed', 'closed', 'activated', 'assigned');
 $config->message->objectTypes['productplan'] = array('opened', 'edited');
 $config->message->objectTypes['project']     = array('opened', 'edited', 'started', 'delayed', 'suspended', 'closed', 'activated', 'undeleted');
@@ -13,22 +15,26 @@ $config->message->objectTypes['doc']         = array('releaseddoc', 'edited');
 $config->message->objectTypes['kanbancard']  = array('created', 'edited', 'finished', 'activated', 'archived', 'restore', 'deleted', 'moved');
 
 $config->message->available = array();
-$config->message->available['mail']['story']      = $config->message->objectTypes['story'];
-$config->message->available['mail']['task']       = $config->message->objectTypes['task'];
-$config->message->available['mail']['bug']        = $config->message->objectTypes['bug'];
-$config->message->available['mail']['testtask']   = array('opened', 'edited', 'closed');
-$config->message->available['mail']['doc']        = $config->message->objectTypes['doc'];
-$config->message->available['mail']['kanbancard'] = $config->message->objectTypes['kanbancard'];
+if($config->enableER) $config->message->available['mail']['epic']        = $config->message->objectTypes['epic'];
+if($config->URAndSR)  $config->message->available['mail']['requirement'] = $config->message->objectTypes['requirement'];
+$config->message->available['mail']['story']       = $config->message->objectTypes['story'];
+$config->message->available['mail']['task']        = $config->message->objectTypes['task'];
+$config->message->available['mail']['bug']         = $config->message->objectTypes['bug'];
+$config->message->available['mail']['testtask']    = array('opened', 'edited', 'closed');
+$config->message->available['mail']['doc']         = $config->message->objectTypes['doc'];
+$config->message->available['mail']['kanbancard']  = $config->message->objectTypes['kanbancard'];
 
 $config->message->available['webhook']  = $config->message->objectTypes;
 
-$config->message->available['message']['bug']        = $config->message->objectTypes['bug'];
-$config->message->available['message']['story']      = $config->message->objectTypes['story'];
-$config->message->available['message']['task']       = $config->message->objectTypes['task'];
-$config->message->available['message']['testtask']   = $config->message->objectTypes['testtask'];
-$config->message->available['message']['todo']       = $config->message->objectTypes['todo'];
-$config->message->available['message']['doc']        = $config->message->objectTypes['doc'];
-$config->message->available['message']['kanbancard'] = $config->message->objectTypes['kanbancard'];
+$config->message->available['message']['bug']         = $config->message->objectTypes['bug'];
+if($config->enableER) $config->message->available['message']['epic']        = $config->message->objectTypes['epic'];
+if($config->URAndSR)  $config->message->available['message']['requirement'] = $config->message->objectTypes['requirement'];
+$config->message->available['message']['story']       = $config->message->objectTypes['story'];
+$config->message->available['message']['task']        = $config->message->objectTypes['task'];
+$config->message->available['message']['testtask']    = $config->message->objectTypes['testtask'];
+$config->message->available['message']['todo']        = $config->message->objectTypes['todo'];
+$config->message->available['message']['doc']         = $config->message->objectTypes['doc'];
+$config->message->available['message']['kanbancard']  = $config->message->objectTypes['kanbancard'];
 
 $config->message->typeLink = array();
 $config->message->typeLink['mail']    = 'mail|index';
diff --git a/module/message/model.php b/module/message/model.php
index 0221443740..d2b83b166d 100755
--- a/module/message/model.php
+++ b/module/message/model.php
@@ -82,6 +82,13 @@ class messageModel extends model
         $messageSetting = $this->config->message->setting;
         if(is_string($messageSetting)) $messageSetting = json_decode($messageSetting, true);
 
+        /* 如果是业需和用需，则使用它们的发信配置。*/
+        if($objectType == 'story')
+        {
+            $story      = $this->loadModel('story')->fetchByID($objectID);
+            $objectType = $story->type;
+        }
+
         if(isset($messageSetting['mail']))
         {
             $actions = $messageSetting['mail']['setting'];
@@ -212,11 +219,12 @@ class messageModel extends model
         }
 
         if($toList == 'closed') $toList = '';
-        if($objectType == 'story' && $actionID)
+        if($objectType == 'feedback' && $object->status == 'replied') $toList = ',' . $object->openedBy . ',';
+        if(in_array($objectType, array('story', 'epic', 'requirement')) && $actionID)
         {
             $action = $this->loadModel('action')->getById($actionID);
             list($toList, $ccList) = $this->loadModel($objectType)->getToAndCcList($object, $action->action);
-            $toList .= ',' . $ccList;
+            $toList = $toList . $ccList;
         }
 
         if($objectType == 'testtask')
diff --git a/module/metric/calc/execution/scale/count_of_developed_story_in_execution.php b/module/metric/calc/execution/scale/count_of_developed_story_in_execution.php
index 5d1e1fc3a0..860c061f6e 100755
--- a/module/metric/calc/execution/scale/count_of_developed_story_in_execution.php
+++ b/module/metric/calc/execution/scale/count_of_developed_story_in_execution.php
@@ -20,7 +20,7 @@
  */
 class count_of_developed_story_in_execution extends baseCalc
 {
-    public $dataset = 'getDevStoriesWithExecution';
+    public $dataset = 'getAllStoriesWithExecution';
 
     public $fieldList = array('t3.project', 't1.stage', 't1.closedReason');
 
diff --git a/module/metric/calc/execution/scale/count_of_story_in_execution.php b/module/metric/calc/execution/scale/count_of_story_in_execution.php
index 04a2b1b7d0..9d6e2f3d30 100755
--- a/module/metric/calc/execution/scale/count_of_story_in_execution.php
+++ b/module/metric/calc/execution/scale/count_of_story_in_execution.php
@@ -20,7 +20,7 @@
  */
 class count_of_story_in_execution extends baseCalc
 {
-    public $dataset = 'getDevStoriesWithExecution';
+    public $dataset = 'getAllStoriesWithExecution';
 
     public $fieldList = array('t3.project');
 
diff --git a/module/metric/calc/project/scale/count_of_closed_epic_in_project.php b/module/metric/calc/project/scale/count_of_closed_epic_in_project.php
new file mode 100644
index 0000000000..60f65dec1c
--- /dev/null
+++ b/module/metric/calc/project/scale/count_of_closed_epic_in_project.php
@@ -0,0 +1,45 @@
+<?php
+/**
+ * 按项目统计的已关闭业务需求数
+ * Count of closed epic in project.
+ *
+ * 范围：project
+ * 对象：epic
+ * 目的：scale
+ * 度量名称：按项目统计的已关闭业务需求数
+ * 单位：个
+ * 描述：按项目统计的已关闭业务需求数是指项目中状态为已关闭的业务需求的数量，反映了项目团队在满足组织业务目标和需求方面的已经实现的任务和计划。已关闭业务需求数量的增加表示项目团队已经成功完成了一定数量的业务需求工作，并取得了一定的成果。
+ * 定义：项目中业务需求个数求和 过滤已删除的业务需求 状态为已关闭 过滤已删除的项目
+ *
+ * @copyright Copyright 2009-2023 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.zentao.net)
+ * @author    zhouxin <zhouxin@easycorp.ltd>
+ * @package
+ * @uses      func
+ * @license   ZPL(https://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ * @Link      https://www.zentao.net
+ */
+class count_of_closed_epic_in_project extends baseCalc
+{
+    public $dataset = 'getEpicWithProject';
+
+    public $fieldList = array('t2.project', 't1.status');
+
+    public $result = array();
+
+    public function calculate($row)
+    {
+        if($row->status == 'closed')
+        {
+            if(!isset($this->result[$row->project])) $this->result[$row->project] = 0;
+            $this->result[$row->project] += 1;
+        }
+    }
+
+    public function getResult($options = array())
+    {
+        $records = $this->getRecords(array('project', 'value'));
+        return $this->filterByOptions($records, $options);
+    }
+}
+
+
diff --git a/module/metric/calc/project/scale/count_of_epic_in_project.php b/module/metric/calc/project/scale/count_of_epic_in_project.php
new file mode 100644
index 0000000000..cde5a5396f
--- /dev/null
+++ b/module/metric/calc/project/scale/count_of_epic_in_project.php
@@ -0,0 +1,41 @@
+<?php
+/**
+ * 按项目统计的业务需求总数
+ * Count of epic in project.
+ *
+ * 范围：project
+ * 对象：epic
+ * 目的：scale
+ * 度量名称：按项目统计的业务需求总数
+ * 单位：个
+ * 描述：按项目统计的业务需求总数是指项目中创建或关联的所有业务需求的数量，反映了项目的规模和复杂度，提供了关于业务需求管理、进度控制、资源规划、风险评估和质量控制的有用信息。
+ * 定义：项目中业务需求个数求和 过滤已删除的业务需求 过滤已删除的项目
+ *
+ * @copyright Copyright 2009-2023 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.zentao.net)
+ * @author    zhouxin <zhouxin@easycorp.ltd>
+ * @package
+ * @uses      func
+ * @license   ZPL(https://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ * @Link      https://www.zentao.net
+ */
+class count_of_epic_in_project extends baseCalc
+{
+    public $dataset = 'getEpicWithProject';
+
+    public $fieldList = array('t2.project');
+
+    public $result = array();
+
+    public function calculate($row)
+    {
+        if(!isset($this->result[$row->project])) $this->result[$row->project] = 0;
+        $this->result[$row->project] += 1;
+    }
+
+    public function getResult($options = array())
+    {
+        $records = $this->getRecords(array('project', 'value'));
+        return $this->filterByOptions($records, $options);
+    }
+}
+
diff --git a/module/metric/calc/project/scale/count_of_finished_epic_in_project.php b/module/metric/calc/project/scale/count_of_finished_epic_in_project.php
new file mode 100644
index 0000000000..fa4a5b2365
--- /dev/null
+++ b/module/metric/calc/project/scale/count_of_finished_epic_in_project.php
@@ -0,0 +1,46 @@
+<?php
+/**
+ * 按项目统计的已完成业务需求数
+ * Count of finished epic in project.
+ *
+ * 范围：project
+ * 对象：epic
+ * 目的：scale
+ * 度量名称：按项目统计的已完成业务需求数
+ * 单位：个
+ * 描述：按项目统计的已完成业务需求数是指状态为已关闭且关闭原因为已完成的业务需求的数量。反映了项目团队在满足组织业务目标和需求方面的已经实现的任务和计划。已完成业务需求数量的增加表示项目团队已经成功完成了一定数量的业务需求工作，并取得了一定的成果。
+ * 定义：项目中业务需求的个数求和 状态为已关闭 关闭原因为已完成 过滤已删除的业务需求 过滤已删除的项目
+ *
+ * @copyright Copyright 2009-2023 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.zentao.net)
+ * @author    zhouxin <zhouxin@easycorp.ltd>
+ * @package
+ * @uses      func
+ * @license   ZPL(https://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ * @Link      https://www.zentao.net
+ */
+class count_of_finished_epic_in_project extends baseCalc
+{
+    public $dataset = 'getEpicWithProject';
+
+    public $fieldList = array('t2.project', 't1.status', 't1.closedReason');
+
+    public $result = array();
+
+    public function calculate($row)
+    {
+        if($row->status == 'closed' && $row->closedReason = 'done')
+        {
+            if(!isset($this->result[$row->project])) $this->result[$row->project] = 0;
+            $this->result[$row->project] += 1;
+        }
+    }
+
+    public function getResult($options = array())
+    {
+        $records = $this->getRecords(array('project', 'value'));
+        return $this->filterByOptions($records, $options);
+    }
+}
+
+
+
diff --git a/module/metric/calc/project/scale/count_of_finished_story_in_project.php b/module/metric/calc/project/scale/count_of_finished_story_in_project.php
index f1548b35f3..7afb9f298d 100755
--- a/module/metric/calc/project/scale/count_of_finished_story_in_project.php
+++ b/module/metric/calc/project/scale/count_of_finished_story_in_project.php
@@ -20,7 +20,7 @@
  */
 class count_of_finished_story_in_project extends baseCalc
 {
-    public $dataset = 'getDevStoriesWithProject';
+    public $dataset = 'getAllStoriesWithProject';
 
     public $fieldList = array('t3.project', 't1.closedReason');
 
diff --git a/module/metric/calc/project/scale/count_of_unclosed_epic_in_project.php b/module/metric/calc/project/scale/count_of_unclosed_epic_in_project.php
new file mode 100644
index 0000000000..949ef43000
--- /dev/null
+++ b/module/metric/calc/project/scale/count_of_unclosed_epic_in_project.php
@@ -0,0 +1,46 @@
+<?php
+/**
+ * 按项目统计的未关闭业务需求数
+ * Count of unclosed epic in project.
+ *
+ * 范围：project
+ * 对象：epic
+ * 目的：scale
+ * 度量名称：按项目统计的未关闭业务需求数
+ * 单位：个
+ * 描述：按项目统计的未关闭业务需求数是指项目中尚未满足或处理的业务需求的数量，反映了项目团队在满足组织业务目标和需求方面的进行中任务和计划。未关闭业务需求数量的增加表示项目团队尚未完成的业务需求工作较多，需要进一步跟进和处理，以确保项目能够满足组织的业务目标。
+ * 定义：复用： 按项目统计的业务需求总数 按项目统计的已关闭业务需求数 公式： 按项目统计的未关闭业务需求数=按项目统计的业务需求总数-按项目统计的已关闭业务需求数
+ *
+ * @copyright Copyright 2009-2023 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.zentao.net)
+ * @author    zhouxin <zhouxin@easycorp.ltd>
+ * @package
+ * @uses      func
+ * @license   ZPL(https://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ * @Link      https://www.zentao.net
+ */
+class count_of_unclosed_epic_in_project extends baseCalc
+{
+    public $dataset = 'getEpicWithProject';
+
+    public $fieldList = array('t2.project', 't1.status');
+
+    public $result = array();
+
+    public function calculate($row)
+    {
+        if($row->status != 'closed')
+        {
+            if(!isset($this->result[$row->project])) $this->result[$row->project] = 0;
+            $this->result[$row->project] += 1;
+        }
+    }
+
+    public function getResult($options = array())
+    {
+        $records = $this->getRecords(array('project', 'value'));
+        return $this->filterByOptions($records, $options);
+    }
+}
+
+
+
diff --git a/module/metric/calc/project/scale/count_of_unclosed_story_in_project.php b/module/metric/calc/project/scale/count_of_unclosed_story_in_project.php
index d9ee879761..229f17df3a 100755
--- a/module/metric/calc/project/scale/count_of_unclosed_story_in_project.php
+++ b/module/metric/calc/project/scale/count_of_unclosed_story_in_project.php
@@ -20,7 +20,7 @@
  */
 class count_of_unclosed_story_in_project extends baseCalc
 {
-    public $dataset = 'getDevStoriesWithProject';
+    public $dataset = 'getAllStoriesWithProject';
 
     public $fieldList = array('t3.project', 't1.status');
 
diff --git a/module/metric/calc/project/scale/scale_of_story_in_project.php b/module/metric/calc/project/scale/scale_of_story_in_project.php
index 3135f04177..6d52c5bd07 100755
--- a/module/metric/calc/project/scale/scale_of_story_in_project.php
+++ b/module/metric/calc/project/scale/scale_of_story_in_project.php
@@ -20,9 +20,9 @@
  */
 class scale_of_story_in_project extends baseCalc
 {
-    public $dataset = 'getDevStoriesWithProject';
+    public $dataset = 'getAllStoriesWithProject';
 
-    public $fieldList = array('t3.project', 't1.estimate', 't1.parent');
+    public $fieldList = array('t3.project', 't1.estimate', 't1.isParent');
 
     public $result = array();
 
@@ -30,9 +30,9 @@ class scale_of_story_in_project extends baseCalc
     {
         $project  = $row->project;
         $estimate = $row->estimate;
-        $parent   = $row->parent;
+        $isParent = $row->isParent;
 
-        if($parent == '-1') return false;
+        if($isParent == '1') return false;
 
         if(!isset($this->result[$project])) $this->result[$project] = 0;
         $this->result[$project] += $estimate;
diff --git a/module/metric/calc/system/scale/count_of_daily_created_story.php b/module/metric/calc/system/scale/count_of_daily_created_story.php
index 7f1270192b..5d69d9b323 100755
--- a/module/metric/calc/system/scale/count_of_daily_created_story.php
+++ b/module/metric/calc/system/scale/count_of_daily_created_story.php
@@ -1,15 +1,15 @@
 <?php
 /**
- * 按系统统计的每日新增研发需求数。
+ * 按系统统计的每日新增需求数。
  * Count of daily created story.
  *
  * 范围：system
  * 对象：story
  * 目的：scale
- * 度量名称：按系统统计的每日新增研发需求数
+ * 度量名称：按系统统计的每日新增需求数
  * 单位：个
- * 描述：按系统统计的每日新增研发需求数表示每日新增加的研发需求的数量，可以用于评估组织的研发需求增长和规模扩展情况。
- * 定义：所有的研发需求个数求和;创建时间为某日;过滤已删除的研发需求;
+ * 描述：按系统统计的每日新增需求数表示每日新增加的需求的数量，可以用于评估组织的需求增长和规模扩展情况。
+ * 定义：所有的需求个数求和;创建时间为某日;过滤已删除的需求;
  *
  * @copyright Copyright 2009-2023 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.zentao.net)
  * @author    qixinzhi <qixinzhi@easycorp.ltd>
@@ -20,7 +20,7 @@
  */
 class count_of_daily_created_story extends baseCalc
 {
-    public $dataset = 'getAllDevStories';
+    public $dataset = 'getAllStories';
 
     public $fieldList = array('t1.openedDate');
 
diff --git a/module/metric/calc/user/scale/count_of_assigned_epic_in_user.php b/module/metric/calc/user/scale/count_of_assigned_epic_in_user.php
new file mode 100755
index 0000000000..d540d08568
--- /dev/null
+++ b/module/metric/calc/user/scale/count_of_assigned_epic_in_user.php
@@ -0,0 +1,44 @@
+<?php
+/**
+ * 按人员统计的待处理业务需求数
+ * Count of assignedTo epic in user.
+ *
+ * 范围：user
+ * 对象：epic
+ * 目的：scale
+ * 度量名称：按人员统计的待处理业务需求数
+ * 单位：个
+ * 描述：按人员统计的待处理业务需求数表示每个人待处理的业务需求数量之和。反映了每个人员需要处理的业务需求数量的规模。该数值越大，说明需要投入越多的时间处理业务需求。
+ * 定义：所有业务需求个数求和 指派给为某人 过滤已删除的业务需求 过滤已删除产品的业务需求
+ *
+ * @copyright Copyright 2009-2023 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.zentao.net)
+ * @author    qixinzhi <qixinzhi@easycorp.ltd>
+ * @package
+ * @uses      func
+ * @license   ZPL(https://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ * @Link      https://www.zentao.net
+ */
+class count_of_assigned_epic_in_user extends baseCalc
+{
+    public $dataset = 'getAllEpics';
+
+    public $fieldList = array('assignedTo');
+
+    public $result = array();
+
+    public function calculate($row)
+    {
+        $assignedTo = $row->assignedTo;
+
+        if(empty($assignedTo) || $assignedTo == 'closed') return false;
+
+        if(!isset($this->result[$assignedTo])) $this->result[$assignedTo] = 0;
+        $this->result[$assignedTo] += 1;
+    }
+
+    public function getResult($options = array())
+    {
+        $records = $this->getRecords(array('user', 'value'));
+        return $this->filterByOptions($records, $options);
+    }
+}
diff --git a/module/metric/config.php b/module/metric/config.php
index c04720fce9..b15d718973 100644
--- a/module/metric/config.php
+++ b/module/metric/config.php
@@ -1,7 +1,7 @@
 <?php
 $config->metric = new stdclass();
 $config->metric->scopeList     = array('program', 'project', 'product', 'execution', 'user', 'system');
-$config->metric->objectList    = array('program', 'line', 'product', 'project', 'productplan', 'execution', 'release', 'story', 'requirement', 'task', 'bug', 'case', 'user', 'effort', 'doc', 'feedback', 'ticket', 'risk', 'issue', 'review', 'qa');
+$config->metric->objectList    = array('program', 'line', 'product', 'project', 'productplan', 'execution', 'release', 'epic', 'story', 'requirement', 'task', 'bug', 'case', 'user', 'effort', 'doc', 'feedback', 'ticket', 'risk', 'issue', 'review', 'qa');
 $config->metric->purposeList   = array('scale', 'qc', 'hour', 'cost', 'rate', 'time');
 $config->metric->dateList      = array('year', 'month', 'week', 'day');
 $config->metric->excludeGlobal = array('program', 'project', 'product', 'execution', 'user');
diff --git a/module/metric/dataset.php b/module/metric/dataset.php
index 08622c43fe..1c47c425fa 100644
--- a/module/metric/dataset.php
+++ b/module/metric/dataset.php
@@ -318,6 +318,24 @@ class dataset
         return $this->defaultWhere($stmt, 't1');
     }
 
+    /**
+     * 获取所有需求数据，不区分类型。
+     * Get all story list.
+     *
+     * @param  string       $fieldList
+     * @access public
+     * @return PDOStatement
+     */
+    public function getAllStories($fieldList)
+    {
+        $stmt = $this->dao->select($fieldList)->from(TABLE_STORY)->alias('t1')
+            ->leftJoin(TABLE_PRODUCT)->alias('t2')->on('t1.product=t2.id')
+            ->where('t1.deleted')->eq(0)
+            ->andWhere('t2.deleted')->eq(0);
+
+        return $this->defaultWhere($stmt, 't1');
+    }
+
     /**
      * 获取执行的研发需求数据。
      * Get story list, with execution and type is story.
@@ -346,6 +364,33 @@ class dataset
         return $this->defaultWhere($stmt, 't1');
     }
 
+    /**
+     * 获取执行的所有需求数据。
+     * Get story list, with execution story.
+     *
+     * @param  string       $fieldList
+     * @access public
+     * @return PDOStatement
+     */
+    public function getAllStoriesWithExecution($fieldList)
+    {
+        $stmt = $this->dao->select($fieldList)
+            ->from(TABLE_STORY)->alias('t1')
+            ->leftJoin(TABLE_PRODUCT)->alias('t2')->on('t1.product=t2.id')
+            ->leftJoin(TABLE_PROJECTSTORY)->alias('t3')->on('t1.id=t3.story')
+            ->leftJoin(TABLE_PROJECT)->alias('t4')->on('t3.project=t4.id')
+            ->leftJoin(TABLE_PROJECT)->alias('t5')->on('t4.project=t5.id')
+            ->where('t1.deleted')->eq(0)
+            ->andWhere('t2.deleted')->eq(0)
+            ->andWhere('t2.shadow')->eq(0)
+            ->andWhere('t4.deleted')->eq(0) // 已删除的执行
+            ->andWhere('t4.type')->in('sprint,stage,kanban')
+            ->andWhere('t4.multiple')->eq('1')
+            ->andWhere('t5.deleted')->eq(0); // 已删除的项目
+
+        return $this->defaultWhere($stmt, 't1');
+    }
+
     /**
      * 获取项目的研发需求数据。
      * Get story list, with project and type is story.
@@ -355,6 +400,52 @@ class dataset
      * @return PDOStatement
      */
     public function getDevStoriesWithProject($fieldList)
+    {
+        $stmt = $this->dao->select($fieldList)->from(TABLE_STORY)->alias('t1')
+            ->leftJoin(TABLE_PRODUCT)->alias('t2')->on('t1.product=t2.id')
+            ->leftJoin(TABLE_PROJECTSTORY)->alias('t3')->on('t1.id=t3.story')
+            ->leftJoin(TABLE_PROJECT)->alias('t4')->on('t3.project=t4.id')
+            ->where('t1.deleted')->eq('0')
+            ->andWhere('t2.deleted')->eq('0')
+            ->andWhere('t1.type')->eq('story')
+            ->andWhere('t4.deleted')->eq('0')
+            ->andWhere('t1.isParent')->eq('0')
+            ->andWhere('t4.type')->eq('project');
+
+        return $this->defaultWhere($stmt, 't1');
+    }
+
+    /**
+     * 获取项目的业务需求数据。
+     * Get epic list with project.
+     *
+     * @param  string       $fieldList
+     * @access public
+     * @return PDOStatement
+     */
+    public function getEpicWithProject($fieldList)
+    {
+        $stmt = $this->dao->select($fieldList)
+            ->from(TABLE_STORY)->alias('t1')
+            ->leftJoin(TABLE_PROJECTSTORY)->alias('t2')->on('t1.id=t2.story')
+            ->leftJoin(TABLE_PROJECT)->alias('t3')->on('t2.project=t3.id')
+            ->where('t1.deleted')->eq(0)
+            ->andWhere('t3.deleted')->eq(0)
+            ->andWhere('t1.type')->eq('epic')
+            ->andWhere('t3.type')->eq('project');
+
+        return $this->defaultWhere($stmt, 't1');
+    }
+
+    /**
+     * 获取项目的所有需求数据。
+     * Get story list, with project story.
+     *
+     * @param  string       $fieldList
+     * @access public
+     * @return PDOStatement
+     */
+    public function getAllStoriesWithProject($fieldList)
     {
         $stmt = $this->dao->select($fieldList)
             ->from(TABLE_STORY)->alias('t1')
@@ -363,7 +454,6 @@ class dataset
             ->leftJoin(TABLE_PROJECT)->alias('t4')->on('t3.project=t4.id')
             ->where('t1.deleted')->eq(0)
             ->andWhere('t2.deleted')->eq(0)
-            ->andWhere('t1.type')->eq('story')
             ->andWhere('t4.deleted')->eq(0)
             ->andWhere('t4.type')->eq('project');
 
@@ -380,19 +470,17 @@ class dataset
      */
     public function getDevStories($fieldList)
     {
-        $caseQuery = $this->dao->select('story, count(DISTINCT id) as case_count')
-            ->from(TABLE_CASE)
-            ->groupBy('story')
-            ->get();
+        $caseQuery = $this->dao->select('story, COUNT(DISTINCT id) AS case_count')->from(TABLE_CASE)->groupBy('story')->get();
 
         $stmt = $this->dao->select($fieldList)
             ->from(TABLE_STORY)->alias('t1')
             ->leftJoin(TABLE_PRODUCT)->alias('t2')->on('t1.product=t2.id')
             ->leftJoin("($caseQuery)")->alias('t3')->on('t1.id=t3.story')
-            ->where('t1.deleted')->eq(0)
-            ->andWhere('t2.deleted')->eq(0)
+            ->where('t1.deleted')->eq('0')
+            ->andWhere('t2.deleted')->eq('0')
             ->andWhere('t1.type')->eq('story')
-            ->andWhere('t2.shadow')->eq(0);
+            ->andWhere('t1.isParent')->eq('0')
+            ->andWhere('t2.shadow')->eq('0');
 
         return $this->defaultWhere($stmt, 't1');
     }
@@ -407,12 +495,32 @@ class dataset
      */
     public function getAllDevStories($fieldList)
     {
-        $stmt =  $this->dao->select($fieldList)
+        $stmt = $this->dao->select($fieldList)->from(TABLE_STORY)->alias('t1')
+            ->leftJoin(TABLE_PRODUCT)->alias('t2')->on('t1.product=t2.id')
+            ->where('t1.deleted')->eq('0')
+            ->andWhere('t2.deleted')->eq('0')
+            ->andWhere('t1.type')->eq('story')
+            ->andWhere('t1.isParent')->eq('0');
+
+        return $this->defaultWhere($stmt, 't1');
+    }
+
+    /**
+     * 获取所有业务需求数据，不过滤影子产品。
+     * Get all epics, don't filter shadow product.
+     *
+     * @param  string       $fieldList
+     * @access public
+     * @return PDOStatement
+     */
+    public function getAllEpics($fieldList)
+    {
+        $stmt = $this->dao->select($fieldList)
             ->from(TABLE_STORY)->alias('t1')
             ->leftJoin(TABLE_PRODUCT)->alias('t2')->on('t1.product=t2.id')
             ->where('t1.deleted')->eq(0)
             ->andWhere('t2.deleted')->eq(0)
-            ->andWhere('t1.type')->eq('story');
+            ->andWhere('t1.type')->eq('epic');
 
         return $this->defaultWhere($stmt, 't1');
     }
diff --git a/module/metric/lang/de.php b/module/metric/lang/de.php
index ec3c733e07..5180a83244 100755
--- a/module/metric/lang/de.php
+++ b/module/metric/lang/de.php
@@ -257,6 +257,7 @@ $lang->metric->objectList['project']       = "Project";
 $lang->metric->objectList['productplan']   = "Plan";
 $lang->metric->objectList['execution']     = "Execution";
 $lang->metric->objectList['release']       = "Release";
+$lang->metric->objectList['epic']          = $lang->ERCommon;
 $lang->metric->objectList['story']         = $lang->SRCommon;
 $lang->metric->objectList['requirement']   = $lang->URCommon;
 $lang->metric->objectList['task']          = "Task";
diff --git a/module/metric/lang/en.php b/module/metric/lang/en.php
index ec3c733e07..5180a83244 100755
--- a/module/metric/lang/en.php
+++ b/module/metric/lang/en.php
@@ -257,6 +257,7 @@ $lang->metric->objectList['project']       = "Project";
 $lang->metric->objectList['productplan']   = "Plan";
 $lang->metric->objectList['execution']     = "Execution";
 $lang->metric->objectList['release']       = "Release";
+$lang->metric->objectList['epic']          = $lang->ERCommon;
 $lang->metric->objectList['story']         = $lang->SRCommon;
 $lang->metric->objectList['requirement']   = $lang->URCommon;
 $lang->metric->objectList['task']          = "Task";
diff --git a/module/metric/lang/fr.php b/module/metric/lang/fr.php
index ec3c733e07..5180a83244 100755
--- a/module/metric/lang/fr.php
+++ b/module/metric/lang/fr.php
@@ -257,6 +257,7 @@ $lang->metric->objectList['project']       = "Project";
 $lang->metric->objectList['productplan']   = "Plan";
 $lang->metric->objectList['execution']     = "Execution";
 $lang->metric->objectList['release']       = "Release";
+$lang->metric->objectList['epic']          = $lang->ERCommon;
 $lang->metric->objectList['story']         = $lang->SRCommon;
 $lang->metric->objectList['requirement']   = $lang->URCommon;
 $lang->metric->objectList['task']          = "Task";
diff --git a/module/metric/lang/zh-cn.php b/module/metric/lang/zh-cn.php
index 8f1eea17dd..58fe06ac19 100755
--- a/module/metric/lang/zh-cn.php
+++ b/module/metric/lang/zh-cn.php
@@ -257,6 +257,7 @@ $lang->metric->objectList['project']       = "项目";
 $lang->metric->objectList['productplan']   = "计划";
 $lang->metric->objectList['execution']     = "执行";
 $lang->metric->objectList['release']       = "发布";
+$lang->metric->objectList['epic']          = $lang->ERCommon;
 $lang->metric->objectList['story']         = $lang->SRCommon;
 $lang->metric->objectList['requirement']   = $lang->URCommon;
 $lang->metric->objectList['task']          = "任务";
diff --git a/module/my/config/table.php b/module/my/config/table.php
index 1ef7c89759..824323b269 100644
--- a/module/my/config/table.php
+++ b/module/my/config/table.php
@@ -327,37 +327,37 @@ $config->my->requirement->actionList = array();
 $config->my->requirement->actionList['change']['icon']        = 'alter';
 $config->my->requirement->actionList['change']['text']        = $lang->story->change;
 $config->my->requirement->actionList['change']['hint']        = $lang->story->change;
-$config->my->requirement->actionList['change']['url']         = array('module' => 'story', 'method' => 'change', 'params' => 'storyID={id}&from=&storyType=requirement');
+$config->my->requirement->actionList['change']['url']         = array('module' => 'requirement', 'method' => 'change', 'params' => 'storyID={id}&from=&storyType=requirement');
 $config->my->requirement->actionList['change']['data-toggle'] = 'modal';
 
 $config->my->requirement->actionList['submitReview']['icon']        = 'confirm';
 $config->my->requirement->actionList['submitReview']['text']        = $lang->story->submitReview;
 $config->my->requirement->actionList['submitReview']['hint']        = $lang->story->submitReview;
-$config->my->requirement->actionList['submitReview']['url']         = array('module' => 'story', 'method' => 'submitReview', 'params' => 'storyID={id}&storyType=requirement');
+$config->my->requirement->actionList['submitReview']['url']         = array('module' => 'requirement', 'method' => 'submitReview', 'params' => 'storyID={id}&storyType=requirement');
 $config->my->requirement->actionList['submitReview']['data-toggle'] = 'modal';
 
 $config->my->requirement->actionList['review']['icon']        = 'search';
 $config->my->requirement->actionList['review']['text']        = $lang->story->review;
 $config->my->requirement->actionList['review']['hint']        = $lang->story->review;
-$config->my->requirement->actionList['review']['url']         = array('module' => 'story', 'method' => 'review', 'params' => 'storyID={id}&from=product&storyType=requirement');
+$config->my->requirement->actionList['review']['url']         = array('module' => 'requirement', 'method' => 'review', 'params' => 'storyID={id}&from=product&storyType=requirement');
 $config->my->requirement->actionList['review']['data-toggle'] = 'modal';
 
 $config->my->requirement->actionList['recall']['icon']      = 'undo';
 $config->my->requirement->actionList['recall']['text']      = $lang->story->recall;
 $config->my->requirement->actionList['recall']['hint']      = $lang->story->recall;
-$config->my->requirement->actionList['recall']['url']       = array('module' => 'story', 'method' => 'recall', 'params' => 'storyID={id}&from=list&confirm=no&storyType=requirement');
+$config->my->requirement->actionList['recall']['url']       = array('module' => 'requirement', 'method' => 'recall', 'params' => 'storyID={id}&from=list&confirm=no&storyType=requirement');
 $config->my->requirement->actionList['recall']['className'] = 'ajax-submit';
 
 $config->my->requirement->actionList['edit']['icon']        = 'edit';
 $config->my->requirement->actionList['edit']['text']        = $lang->story->edit;
 $config->my->requirement->actionList['edit']['hint']        = $lang->story->edit;
-$config->my->requirement->actionList['edit']['url']         = array('module' => 'story', 'method' => 'edit', 'params' => 'storyID={id}&from=default&storyType=requirement');
+$config->my->requirement->actionList['edit']['url']         = array('module' => 'requirement', 'method' => 'edit', 'params' => 'storyID={id}&from=default&storyType=requirement');
 $config->my->requirement->actionList['edit']['data-toggle'] = 'modal';
 
 $config->my->requirement->actionList['close']['icon']        = 'off';
 $config->my->requirement->actionList['close']['text']        = $lang->story->close;
 $config->my->requirement->actionList['close']['hint']        = $lang->story->close;
-$config->my->requirement->actionList['close']['url']         = array('module' => 'story', 'method' => 'close', 'params' => 'storyID={id}&from=&storyType=requirement');
+$config->my->requirement->actionList['close']['url']         = array('module' => 'requirement', 'method' => 'close', 'params' => 'storyID={id}&from=&storyType=requirement');
 $config->my->requirement->actionList['close']['data-toggle'] = 'modal';
 
 $config->my->requirement->dtable = new stdclass();
@@ -366,12 +366,13 @@ $config->my->requirement->dtable->fieldList['id']['title']    = $lang->idAB;
 $config->my->requirement->dtable->fieldList['id']['type']     = 'id';
 $config->my->requirement->dtable->fieldList['id']['sortType'] = true;
 
-$config->my->requirement->dtable->fieldList['title']['name']     = 'title';
-$config->my->requirement->dtable->fieldList['title']['title']    = common::checkNotCN() ? $lang->URCommon . ' ' . $lang->my->name : $lang->URCommon . $lang->my->name;
-$config->my->requirement->dtable->fieldList['title']['type']     = 'title';
-$config->my->requirement->dtable->fieldList['title']['link']     = array('module' => 'story', 'method' => 'view', 'params' => 'id={id}&version=0&param=0&storyType=requirement');
-$config->my->requirement->dtable->fieldList['title']['fixed']    = 'left';
-$config->my->requirement->dtable->fieldList['title']['sortType'] = true;
+$config->my->requirement->dtable->fieldList['title']['name']         = 'title';
+$config->my->requirement->dtable->fieldList['title']['title']        = common::checkNotCN() ? $lang->URCommon . ' ' . $lang->my->name : $lang->URCommon . $lang->my->name;
+$config->my->requirement->dtable->fieldList['title']['type']         = 'title';
+$config->my->requirement->dtable->fieldList['title']['link']         = array('module' => 'requirement', 'method' => 'view', 'params' => 'id={id}&version=0&param=0&storyType=requirement');
+$config->my->requirement->dtable->fieldList['title']['fixed']        = 'left';
+$config->my->requirement->dtable->fieldList['title']['sortType']     = true;
+$config->my->requirement->dtable->fieldList['title']['nestedToggle'] = true;
 
 $config->my->requirement->dtable->fieldList['pri']['name']     = 'pri';
 $config->my->requirement->dtable->fieldList['pri']['title']    = $lang->priAB;
@@ -411,6 +412,96 @@ $config->my->requirement->dtable->fieldList['actions']['sortType'] = false;
 $config->my->requirement->dtable->fieldList['actions']['list']     = $config->my->requirement->actionList;
 $config->my->requirement->dtable->fieldList['actions']['menu']     = array('change', 'review|submitReview', 'recall', 'edit', 'close');
 
+$config->my->epic = new stdclass();
+$config->my->epic->actionList = array();
+$config->my->epic->actionList['change']['icon']        = 'alter';
+$config->my->epic->actionList['change']['text']        = $lang->story->change;
+$config->my->epic->actionList['change']['hint']        = $lang->story->change;
+$config->my->epic->actionList['change']['url']         = array('module' => 'epic', 'method' => 'change', 'params' => 'storyID={id}&from=&storyType=epic');
+$config->my->epic->actionList['change']['data-toggle'] = 'modal';
+
+$config->my->epic->actionList['submitReview']['icon']        = 'confirm';
+$config->my->epic->actionList['submitReview']['text']        = $lang->story->submitReview;
+$config->my->epic->actionList['submitReview']['hint']        = $lang->story->submitReview;
+$config->my->epic->actionList['submitReview']['url']         = array('module' => 'epic', 'method' => 'submitReview', 'params' => 'storyID={id}&storyType=epic');
+$config->my->epic->actionList['submitReview']['data-toggle'] = 'modal';
+
+$config->my->epic->actionList['review']['icon']        = 'search';
+$config->my->epic->actionList['review']['text']        = $lang->story->review;
+$config->my->epic->actionList['review']['hint']        = $lang->story->review;
+$config->my->epic->actionList['review']['url']         = array('module' => 'epic', 'method' => 'review', 'params' => 'storyID={id}&from=product&storyType=epic');
+$config->my->epic->actionList['review']['data-toggle'] = 'modal';
+
+$config->my->epic->actionList['recall']['icon']      = 'undo';
+$config->my->epic->actionList['recall']['text']      = $lang->story->recall;
+$config->my->epic->actionList['recall']['hint']      = $lang->story->recall;
+$config->my->epic->actionList['recall']['url']       = array('module' => 'epic', 'method' => 'recall', 'params' => 'storyID={id}&from=list&confirm=no&storyType=epic');
+$config->my->epic->actionList['recall']['className'] = 'ajax-submit';
+
+$config->my->epic->actionList['edit']['icon']        = 'edit';
+$config->my->epic->actionList['edit']['text']        = $lang->story->edit;
+$config->my->epic->actionList['edit']['hint']        = $lang->story->edit;
+$config->my->epic->actionList['edit']['url']         = array('module' => 'epic', 'method' => 'edit', 'params' => 'storyID={id}&from=default&storyType=epic');
+$config->my->epic->actionList['edit']['data-toggle'] = 'modal';
+
+$config->my->epic->actionList['close']['icon']        = 'off';
+$config->my->epic->actionList['close']['text']        = $lang->story->close;
+$config->my->epic->actionList['close']['hint']        = $lang->story->close;
+$config->my->epic->actionList['close']['url']         = array('module' => 'epic', 'method' => 'close', 'params' => 'storyID={id}&from=&storyType=epic');
+$config->my->epic->actionList['close']['data-toggle'] = 'modal';
+
+$config->my->epic->dtable = new stdclass();
+$config->my->epic->dtable->fieldList['id']['name']     = 'id';
+$config->my->epic->dtable->fieldList['id']['title']    = $lang->idAB;
+$config->my->epic->dtable->fieldList['id']['type']     = 'id';
+$config->my->epic->dtable->fieldList['id']['sortType'] = true;
+
+$config->my->epic->dtable->fieldList['title']['name']         = 'title';
+$config->my->epic->dtable->fieldList['title']['title']        = $lang->ERCommon . $lang->my->name;
+$config->my->epic->dtable->fieldList['title']['type']         = 'title';
+$config->my->epic->dtable->fieldList['title']['link']         = array('module' => 'epic', 'method' => 'view', 'params' => 'id={id}&version=0&param=0&storyType=epic');
+$config->my->epic->dtable->fieldList['title']['fixed']        = 'left';
+$config->my->epic->dtable->fieldList['title']['sortType']     = true;
+$config->my->epic->dtable->fieldList['title']['nestedToggle'] = true;
+
+$config->my->epic->dtable->fieldList['pri']['name']     = 'pri';
+$config->my->epic->dtable->fieldList['pri']['title']    = $lang->priAB;
+$config->my->epic->dtable->fieldList['pri']['type']     = 'pri';
+$config->my->epic->dtable->fieldList['pri']['group']    = 'pri';
+$config->my->epic->dtable->fieldList['pri']['sortType'] = true;
+
+$config->my->epic->dtable->fieldList['product']['name']     = 'productTitle';
+$config->my->epic->dtable->fieldList['product']['title']    = $lang->story->product;
+$config->my->epic->dtable->fieldList['product']['type']     = 'text';
+$config->my->epic->dtable->fieldList['product']['group']    = 'pri';
+$config->my->epic->dtable->fieldList['product']['sortType'] = true;
+
+$config->my->epic->dtable->fieldList['status']['name']      = 'status';
+$config->my->epic->dtable->fieldList['status']['title']     = $lang->statusAB;
+$config->my->epic->dtable->fieldList['status']['type']      = 'status';
+$config->my->epic->dtable->fieldList['status']['statusMap'] = $lang->story->statusList;
+$config->my->epic->dtable->fieldList['status']['group']     = 'pri';
+$config->my->epic->dtable->fieldList['status']['sortType']  = true;
+
+$config->my->epic->dtable->fieldList['openedBy']['name']     = 'openedBy';
+$config->my->epic->dtable->fieldList['openedBy']['title']    = $lang->story->openedByAB;
+$config->my->epic->dtable->fieldList['openedBy']['type']     = 'user';
+$config->my->epic->dtable->fieldList['openedBy']['group']    = 'openedBy';
+$config->my->epic->dtable->fieldList['openedBy']['sortType'] = true;
+
+$config->my->epic->dtable->fieldList['estimate']['name']     = 'estimate';
+$config->my->epic->dtable->fieldList['estimate']['title']    = $lang->story->estimateAB;
+$config->my->epic->dtable->fieldList['estimate']['type']     = 'count';
+$config->my->epic->dtable->fieldList['estimate']['group']    = 'openedBy';
+$config->my->epic->dtable->fieldList['estimate']['sortType'] = true;
+
+$config->my->epic->dtable->fieldList['actions']['name']     = 'actions';
+$config->my->epic->dtable->fieldList['actions']['title']    = $lang->actions;
+$config->my->epic->dtable->fieldList['actions']['type']     = 'actions';
+$config->my->epic->dtable->fieldList['actions']['sortType'] = false;
+$config->my->epic->dtable->fieldList['actions']['list']     = $config->my->epic->actionList;
+$config->my->epic->dtable->fieldList['actions']['menu']     = array('change', 'review|submitReview', 'recall', 'edit', 'close');
+
 $config->my->story = new stdclass();
 $config->my->story->actionList = array();
 $config->my->story->actionList['change']['icon']        = 'alter';
diff --git a/module/my/control.php b/module/my/control.php
index 1e2f3c5a7b..3a3080f359 100755
--- a/module/my/control.php
+++ b/module/my/control.php
@@ -238,14 +238,84 @@ class my extends control
         $this->myZen->showWorkCount($recTotal, $recPerPage, $pageID);
 
         /* Assign. */
-        $this->view->title    = $this->lang->my->common . $this->lang->hyphen . $this->lang->my->story;
-        $this->view->stories  = $stories;
-        $this->view->users    = $this->user->getPairs('noletter');
-        $this->view->type     = $type;
-        $this->view->param    = $param;
-        $this->view->mode     = 'story';
-        $this->view->pager    = $pager;
-        $this->view->orderBy  = $orderBy;
+        $this->view->title      = $this->lang->my->common . $this->lang->hyphen . $this->lang->my->story;
+        $this->view->stories    = $stories;
+        $this->view->users      = $this->user->getPairs('noletter');
+        $this->view->type       = $type;
+        $this->view->param      = $param;
+        $this->view->mode       = 'story';
+        $this->view->pager      = $pager;
+        $this->view->orderBy    = $orderBy;
+        $this->view->gradeGroup = $this->story->getGradeGroup();
+        $this->view->showGrade  = $this->config->edition == 'ipd';
+        $this->display();
+    }
+
+    /**
+     * 业务需求列表。
+     * My epics.
+     *
+     * @param  string $type
+     * @param  int    $param
+     * @param  string $orderBy
+     * @param  int    $recTotal
+     * @param  int    $recPerPage
+     * @param  int    $pageID
+     * @access public
+     * @return void
+     */
+    public function epic(string $type = 'assignedTo', int $param = 0, string $orderBy = 'id_desc', int $recTotal = 0, int $recPerPage = 20, int $pageID = 1)
+    {
+        /* Save session. */
+        if($this->app->viewType != 'json') $this->session->set('storyList', $this->app->getURI(true), 'my');
+
+        /* Load pager. */
+        $this->app->loadClass('pager', true);
+        if($this->app->getViewType() == 'mhtml') $recPerPage = 10;
+        $pager = pager::init($recTotal, $recPerPage, $pageID);
+
+        /* Append id for second sort. */
+        $sort = common::appendOrder($orderBy);
+        if(strpos($sort, 'productTitle') !== false) $sort = str_replace('productTitle', 'product', $sort);
+        if(strpos($sort, 'pri_') !== false) $sort = str_replace('pri_', 'priOrder_', $sort);
+        $queryID = ($type == 'bysearch') ? (int)$param : 0;
+
+        $this->loadModel('story');
+        $this->loadModel('epic');
+        if($type == 'assignedBy')
+        {
+            $stories = $this->my->getAssignedByMe($this->app->user->account, $pager, $sort, 'epic');
+        }
+        elseif($type == 'bysearch')
+        {
+            $stories = $this->my->getEpicsBySearch($queryID, $this->app->rawMethod, $sort, $pager);
+        }
+        else
+        {
+            $stories = $this->story->getUserStories($this->app->user->account, $type, $sort, $pager, 'epic', false, 'all');
+        }
+        if(!empty($stories)) $stories = $this->story->mergeReviewer($stories);
+
+        foreach($stories as $story) $story->estimate = $story->estimate . $this->config->hourUnit;
+
+         /* Build the search form. */
+        $currentMethod = $this->app->rawMethod;
+        $actionURL     = $this->createLink('my', $currentMethod, "mode=epic&type=bysearch&param=myQueryID&orderBy={$orderBy}&recTotal={$recTotal}&recPerPage={$recPerPage}&pageID={$pageID}");
+        $this->my->buildEpicSearchForm($queryID, $actionURL, $currentMethod);
+
+        $this->myZen->showWorkCount($recTotal, $recPerPage, $pageID);
+
+        /* Assign. */
+        $this->view->title      = $this->lang->my->common . $this->lang->hyphen . $this->lang->my->story;
+        $this->view->stories    = $stories;
+        $this->view->users      = $this->user->getPairs('noletter');
+        $this->view->type       = $type;
+        $this->view->param      = $param;
+        $this->view->mode       = 'epic';
+        $this->view->pager      = $pager;
+        $this->view->orderBy    = $orderBy;
+        $this->view->gradeGroup = $this->story->getGradeGroup();
+        $this->view->showGrade  = $this->config->edition == 'ipd';
         $this->display();
     }
 
@@ -279,6 +349,7 @@ class my extends control
         $queryID = ($type == 'bysearch') ? (int)$param : 0;
 
         $this->loadModel('story');
+        $this->loadModel('requirement');
         if($type == 'assignedBy')
         {
             $stories = $this->my->getAssignedByMe($this->app->user->account, $pager, $sort, 'requirement');
@@ -303,14 +374,16 @@ class my extends control
         $this->myZen->showWorkCount($recTotal, $recPerPage, $pageID);
 
         /* Assign. */
-        $this->view->title    = $this->lang->my->common . $this->lang->hyphen . $this->lang->my->story;
-        $this->view->stories  = $stories;
-        $this->view->users    = $this->user->getPairs('noletter');
-        $this->view->type     = $type;
-        $this->view->param    = $param;
-        $this->view->mode     = 'requirement';
-        $this->view->pager    = $pager;
-        $this->view->orderBy  = $orderBy;
+        $this->view->title      = $this->lang->my->common . $this->lang->hyphen . $this->lang->my->story;
+        $this->view->stories    = $stories;
+        $this->view->users      = $this->user->getPairs('noletter');
+        $this->view->type       = $type;
+        $this->view->param      = $param;
+        $this->view->mode       = 'requirement';
+        $this->view->pager      = $pager;
+        $this->view->orderBy    = $orderBy;
+        $this->view->gradeGroup = $this->story->getGradeGroup();
+        $this->view->showGrade  = $this->config->edition == 'ipd';
         $this->display();
     }
 
@@ -818,6 +891,8 @@ class my extends control
      */
     public function audit(string $browseType = 'all', int $param = 0, string $orderBy = 'id_desc', int $recTotal = 0, int $recPerPage = 20, int $pageID = 1)
     {
+        $this->loadModel('epic');
+        $this->loadModel('requirement');
         $this->session->set('storyList', $this->app->getURI(true), 'my');
 
         $this->app->loadClass('pager', true);
diff --git a/module/my/js/audit.ui.js b/module/my/js/audit.ui.js
index 44ccc6422d..2f9bb7702b 100644
--- a/module/my/js/audit.ui.js
+++ b/module/my/js/audit.ui.js
@@ -20,15 +20,17 @@ window.onRenderCell = function(result, {row, col})
         }
         else
         {
-            result[0].props.items[0]['disabled'] = true;
-            delete result[0].props.items[0]['data-toggle'];
-            delete result[0].props.items[0]['url'];
-            delete result[0].props.items[0]['href'];
+            delete result[0].props.items[0];
         }
     }
-    if(result && col.name == 'title' && row.data.module == 'review')
+    if(result && col.name == 'title')
     {
-        result[0].props['data-toggle'] = '';
+        if(row.data.module == 'review') result[0].props['data-toggle'] = '';
+        if(!viewPrivs[row.data.module])
+        {
+            result[0].props['data-toggle'] = '';
+            result[0].props['href'] = '#';
+        }
     }
     return result;
 }
diff --git a/module/my/js/epic.ui.js b/module/my/js/epic.ui.js
new file mode 100644
index 0000000000..6274d8414e
--- /dev/null
+++ b/module/my/js/epic.ui.js
@@ -0,0 +1,52 @@
+$(document).off('click', '.batch-btn').on('click', '.batch-btn', function()
+{
+    const dtable = zui.DTable.query($(this).target);
+    const checkedList = dtable.$.getChecks();
+    if(!checkedList.length) return;
+
+    const url  = $(this).data('url');
+    const form = new FormData();
+    checkedList.forEach((id) => form.append('storyIdList[]', id));
+
+    if($(this).hasClass('ajax-btn'))
+    {
+        $.ajaxSubmit({url, data: form});
+    }
+    else
+    {
+        postAndLoadPage(url, form);
+    }
+});
+
+/**
+ * 对标题列进行重定义。
+ * Redefine the title column.
+ *
+ * @param  array  result
+ * @param  array  info
+ * @access public
+ * @return string|array
+ */
+window.renderCell = function(result, info)
+{
+    if(info.col.name == 'title' && result[0])
+    {
+        const story = info.row.data;
+        if(story.shadow == 1) result[0].props.href += '#app=project';
+
+        let html = '';
+        let gradeLabel = '';
+        if(showGrade || story.grade >= 2) gradeLabel = gradeGroup[story.type][story.grade]?.name;
+        if(gradeLabel) html += "<span class='label gray-pale rounded-xl clip'>" + gradeLabel + "</span> ";
+        if(story.color) result[0].props.style = 'color: ' + story.color;
+        if(html) result.unshift({html});
+    }
+    return result;
+}
+
+$(document).off('click', '.switchButton').on('click', '.switchButton', function()
+{
+    var storyViewType = $(this).attr('data-type');
+    $.cookie.set('storyViewType', storyViewType, {expires:config.cookieLife, path:config.webRoot});
+    loadCurrentPage();
+});
diff --git a/module/my/js/requirement.ui.js b/module/my/js/requirement.ui.js
index 4d7a4b70a8..8419dbb23a 100644
--- a/module/my/js/requirement.ui.js
+++ b/module/my/js/requirement.ui.js
@@ -19,16 +19,29 @@ $(document).off('click', '.batch-btn').on('click', '.batch-btn', function()
 });
 
 /**
- * 根据状态变更操作按钮的语言项。
- * Change recall btn lang of object status.
+ * 对标题列进行重定义。
+ * Redefine the title column.
  *
- * @param  object result
- * @param  object info
+ * @param  array  result
+ * @param  array  info
  * @access public
- * @return object
+ * @return string|array
  */
-window.onRenderCell = function(result, {row, col})
+window.renderCell = function(result, {row, col})
 {
+    if(col.name == 'title' && result[0])
+    {
+        const story = row.data;
+        if(story.shadow == 1) result[0].props.href += '#app=project';
+
+        let html       = '';
+        let gradeLabel = '';
+        if(showGrade || story.grade >= 2) gradeLabel = gradeGroup[story.type][story.grade]?.name;
+        if(gradeLabel) html += "<span class='label gray-pale rounded-xl clip'>" + gradeLabel + "</span> ";
+        if(story.color) result[0].props.style = 'color: ' + story.color;
+        if(html) result.unshift({html});
+    }
+
     if(col.name == 'actions')
     {
         for(index in row.data.actions)
@@ -38,3 +51,10 @@ window.onRenderCell = function(result, {row, col})
     }
     return result;
 }
+
+$(document).off('click', '.switchButton').on('click', '.switchButton', function()
+{
+    var storyViewType = $(this).attr('data-type');
+    $.cookie.set('storyViewType', storyViewType, {expires:config.cookieLife, path:config.webRoot});
+    loadCurrentPage();
+});
diff --git a/module/my/js/story.ui.js b/module/my/js/story.ui.js
index a2e32c15e3..7e4057db26 100644
--- a/module/my/js/story.ui.js
+++ b/module/my/js/story.ui.js
@@ -33,11 +33,13 @@ window.renderCell = function(result, info)
     {
         const story = info.row.data;
         if(story.shadow == 1) result[0].props.href += '#app=project';
-        if(story.parent > 0)
-        {
-            let html = "<span class='label gray-pale rounded-xl' title='" + children + "'>" + childrenAB + "</span>";
-            result.unshift({html});
-        }
+
+        let html = '';
+        let gradeLabel = '';
+        if(showGrade || story.grade >= 2) gradeLabel = gradeGroup[story.type][story.grade]?.name;
+        if(gradeLabel) html += "<span class='label gray-pale rounded-xl clip'>" + gradeLabel + "</span> ";
+        if(story.color) result[0].props.style = 'color: ' + story.color;
+        if(html) result.unshift({html});
     }
     if(info.col.name == 'status' && result)
     {
@@ -45,3 +47,10 @@ window.renderCell = function(result, info)
     }
     return result;
 }
+
+$(document).off('click', '.switchButton').on('click', '.switchButton', function()
+{
+    var storyViewType = $(this).attr('data-type');
+    $.cookie.set('storyViewType', storyViewType, {expires:config.cookieLife, path:config.webRoot});
+    loadCurrentPage();
+});
diff --git a/module/my/lang/de.php b/module/my/lang/de.php
index b37b1558a1..fffa23b747 100644
--- a/module/my/lang/de.php
+++ b/module/my/lang/de.php
@@ -41,6 +41,7 @@ $lang->my->noData          = 'No %s yet. ';
 $lang->my->storyChanged    = "Story Changed";
 $lang->my->hours           = "Hours/day";
 $lang->my->uploadAvatar    = 'Upload Avatar';
+$lang->my->epic            = "My {$lang->ERCommon}";
 $lang->my->requirement     = "My {$lang->URCommon}";
 $lang->my->testtask        = 'My Test Task';
 $lang->my->testcase        = 'My Case';
@@ -150,10 +151,12 @@ $lang->my->moreSelects['todo']['more']['thisYear']        = 'This Year';
 $lang->my->moreSelects['todo']['more']['assignedToOther'] = 'Assigned To Other';
 $lang->my->moreSelects['todo']['more']['cycle']           = 'Recurrence';
 
-$lang->my->featureBar['audit']['all']      = 'All';
-$lang->my->featureBar['audit']['demand']   = 'Demand';
-$lang->my->featureBar['audit']['story']    = 'Story';
-$lang->my->featureBar['audit']['testcase'] = 'Test case';
+$lang->my->featureBar['audit']['all']         = 'All';
+$lang->my->featureBar['audit']['demand']      = 'Demand';
+$lang->my->featureBar['audit']['story']       = $lang->SRCommon;
+$lang->my->featureBar['audit']['requirement'] = $lang->URCommon;
+$lang->my->featureBar['audit']['epic']        = $lang->ERCommon;
+$lang->my->featureBar['audit']['testcase']    = 'Test case';
 if(in_array($config->edition, array('max', 'ipd')) and (helper::hasFeature('waterfall') or helper::hasFeature('waterfallplus'))) $lang->my->featureBar['audit']['project'] = $lang->projectCommon;
 if($config->edition != 'open') $lang->my->featureBar['audit']['feedback'] = 'Feedback';
 if($config->edition != 'open' and helper::hasFeature('OA')) $lang->my->featureBar['audit']['oa'] = 'OA';
@@ -179,6 +182,9 @@ $lang->my->featureBar['work']['task']['assignedTo']     = $lang->my->assignedToM
 $lang->my->featureBar['work']['testcase']['assigntome'] = $lang->my->assignedToMe;
 $lang->my->featureBar['work']['testtask']['assignedTo'] = 'Test task';
 
+$lang->my->featureBar['work']['epic'] = $lang->my->featureBar['work']['task'];
+$lang->my->featureBar['work']['epic']['reviewBy'] = 'ReviewByMe';
+
 $lang->my->featureBar['work']['requirement'] = $lang->my->featureBar['work']['task'];
 $lang->my->featureBar['work']['requirement']['reviewBy'] = 'ReviewByMe';
 
@@ -191,6 +197,11 @@ $lang->my->featureBar['contribute']['task']['closedBy']   = 'ClosedByMe';
 $lang->my->featureBar['contribute']['task']['canceledBy'] = 'CancelledByMe';
 $lang->my->featureBar['contribute']['task']['assignedBy'] = 'AssignedByMe';
 
+$lang->my->featureBar['contribute']['epic']['openedBy']   = 'CreatedByMe';
+$lang->my->featureBar['contribute']['epic']['reviewedBy'] = 'ReviewedByMe';
+$lang->my->featureBar['contribute']['epic']['closedBy']   = 'ClosedByMe';
+$lang->my->featureBar['contribute']['epic']['assignedBy'] = 'AssignedByMe';
+
 $lang->my->featureBar['contribute']['requirement']['openedBy']   = 'CreatedByMe';
 $lang->my->featureBar['contribute']['requirement']['reviewedBy'] = 'ReviewedByMe';
 $lang->my->featureBar['contribute']['requirement']['closedBy']   = 'ClosedByMe';
diff --git a/module/my/lang/en.php b/module/my/lang/en.php
index b37b1558a1..fffa23b747 100644
--- a/module/my/lang/en.php
+++ b/module/my/lang/en.php
@@ -41,6 +41,7 @@ $lang->my->noData          = 'No %s yet. ';
 $lang->my->storyChanged    = "Story Changed";
 $lang->my->hours           = "Hours/day";
 $lang->my->uploadAvatar    = 'Upload Avatar';
+$lang->my->epic            = "My {$lang->ERCommon}";
 $lang->my->requirement     = "My {$lang->URCommon}";
 $lang->my->testtask        = 'My Test Task';
 $lang->my->testcase        = 'My Case';
@@ -150,10 +151,12 @@ $lang->my->moreSelects['todo']['more']['thisYear']        = 'This Year';
 $lang->my->moreSelects['todo']['more']['assignedToOther'] = 'Assigned To Other';
 $lang->my->moreSelects['todo']['more']['cycle']           = 'Recurrence';
 
-$lang->my->featureBar['audit']['all']      = 'All';
-$lang->my->featureBar['audit']['demand']   = 'Demand';
-$lang->my->featureBar['audit']['story']    = 'Story';
-$lang->my->featureBar['audit']['testcase'] = 'Test case';
+$lang->my->featureBar['audit']['all']         = 'All';
+$lang->my->featureBar['audit']['demand']      = 'Demand';
+$lang->my->featureBar['audit']['story']       = $lang->SRCommon;
+$lang->my->featureBar['audit']['requirement'] = $lang->URCommon;
+$lang->my->featureBar['audit']['epic']        = $lang->ERCommon;
+$lang->my->featureBar['audit']['testcase']    = 'Test case';
 if(in_array($config->edition, array('max', 'ipd')) and (helper::hasFeature('waterfall') or helper::hasFeature('waterfallplus'))) $lang->my->featureBar['audit']['project'] = $lang->projectCommon;
 if($config->edition != 'open') $lang->my->featureBar['audit']['feedback'] = 'Feedback';
 if($config->edition != 'open' and helper::hasFeature('OA')) $lang->my->featureBar['audit']['oa'] = 'OA';
@@ -179,6 +182,9 @@ $lang->my->featureBar['work']['task']['assignedTo']     = $lang->my->assignedToM
 $lang->my->featureBar['work']['testcase']['assigntome'] = $lang->my->assignedToMe;
 $lang->my->featureBar['work']['testtask']['assignedTo'] = 'Test task';
 
+$lang->my->featureBar['work']['epic'] = $lang->my->featureBar['work']['task'];
+$lang->my->featureBar['work']['epic']['reviewBy'] = 'ReviewByMe';
+
 $lang->my->featureBar['work']['requirement'] = $lang->my->featureBar['work']['task'];
 $lang->my->featureBar['work']['requirement']['reviewBy'] = 'ReviewByMe';
 
@@ -191,6 +197,11 @@ $lang->my->featureBar['contribute']['task']['closedBy']   = 'ClosedByMe';
 $lang->my->featureBar['contribute']['task']['canceledBy'] = 'CancelledByMe';
 $lang->my->featureBar['contribute']['task']['assignedBy'] = 'AssignedByMe';
 
+$lang->my->featureBar['contribute']['epic']['openedBy']   = 'CreatedByMe';
+$lang->my->featureBar['contribute']['epic']['reviewedBy'] = 'ReviewedByMe';
+$lang->my->featureBar['contribute']['epic']['closedBy']   = 'ClosedByMe';
+$lang->my->featureBar['contribute']['epic']['assignedBy'] = 'AssignedByMe';
+
 $lang->my->featureBar['contribute']['requirement']['openedBy']   = 'CreatedByMe';
 $lang->my->featureBar['contribute']['requirement']['reviewedBy'] = 'ReviewedByMe';
 $lang->my->featureBar['contribute']['requirement']['closedBy']   = 'ClosedByMe';
diff --git a/module/my/lang/fr.php b/module/my/lang/fr.php
index b37b1558a1..fffa23b747 100644
--- a/module/my/lang/fr.php
+++ b/module/my/lang/fr.php
@@ -41,6 +41,7 @@ $lang->my->noData          = 'No %s yet. ';
 $lang->my->storyChanged    = "Story Changed";
 $lang->my->hours           = "Hours/day";
 $lang->my->uploadAvatar    = 'Upload Avatar';
+$lang->my->epic            = "My {$lang->ERCommon}";
 $lang->my->requirement     = "My {$lang->URCommon}";
 $lang->my->testtask        = 'My Test Task';
 $lang->my->testcase        = 'My Case';
@@ -150,10 +151,12 @@ $lang->my->moreSelects['todo']['more']['thisYear']        = 'This Year';
 $lang->my->moreSelects['todo']['more']['assignedToOther'] = 'Assigned To Other';
 $lang->my->moreSelects['todo']['more']['cycle']           = 'Recurrence';
 
-$lang->my->featureBar['audit']['all']      = 'All';
-$lang->my->featureBar['audit']['demand']   = 'Demand';
-$lang->my->featureBar['audit']['story']    = 'Story';
-$lang->my->featureBar['audit']['testcase'] = 'Test case';
+$lang->my->featureBar['audit']['all']         = 'All';
+$lang->my->featureBar['audit']['demand']      = 'Demand';
+$lang->my->featureBar['audit']['story']       = $lang->SRCommon;
+$lang->my->featureBar['audit']['requirement'] = $lang->URCommon;
+$lang->my->featureBar['audit']['epic']        = $lang->ERCommon;
+$lang->my->featureBar['audit']['testcase']    = 'Test case';
 if(in_array($config->edition, array('max', 'ipd')) and (helper::hasFeature('waterfall') or helper::hasFeature('waterfallplus'))) $lang->my->featureBar['audit']['project'] = $lang->projectCommon;
 if($config->edition != 'open') $lang->my->featureBar['audit']['feedback'] = 'Feedback';
 if($config->edition != 'open' and helper::hasFeature('OA')) $lang->my->featureBar['audit']['oa'] = 'OA';
@@ -179,6 +182,9 @@ $lang->my->featureBar['work']['task']['assignedTo']     = $lang->my->assignedToM
 $lang->my->featureBar['work']['testcase']['assigntome'] = $lang->my->assignedToMe;
 $lang->my->featureBar['work']['testtask']['assignedTo'] = 'Test task';
 
+$lang->my->featureBar['work']['epic'] = $lang->my->featureBar['work']['task'];
+$lang->my->featureBar['work']['epic']['reviewBy'] = 'ReviewByMe';
+
 $lang->my->featureBar['work']['requirement'] = $lang->my->featureBar['work']['task'];
 $lang->my->featureBar['work']['requirement']['reviewBy'] = 'ReviewByMe';
 
@@ -191,6 +197,11 @@ $lang->my->featureBar['contribute']['task']['closedBy']   = 'ClosedByMe';
 $lang->my->featureBar['contribute']['task']['canceledBy'] = 'CancelledByMe';
 $lang->my->featureBar['contribute']['task']['assignedBy'] = 'AssignedByMe';
 
+$lang->my->featureBar['contribute']['epic']['openedBy']   = 'CreatedByMe';
+$lang->my->featureBar['contribute']['epic']['reviewedBy'] = 'ReviewedByMe';
+$lang->my->featureBar['contribute']['epic']['closedBy']   = 'ClosedByMe';
+$lang->my->featureBar['contribute']['epic']['assignedBy'] = 'AssignedByMe';
+
 $lang->my->featureBar['contribute']['requirement']['openedBy']   = 'CreatedByMe';
 $lang->my->featureBar['contribute']['requirement']['reviewedBy'] = 'ReviewedByMe';
 $lang->my->featureBar['contribute']['requirement']['closedBy']   = 'ClosedByMe';
diff --git a/module/my/lang/zh-cn.php b/module/my/lang/zh-cn.php
index b4420909f9..98382a2e8f 100644
--- a/module/my/lang/zh-cn.php
+++ b/module/my/lang/zh-cn.php
@@ -41,6 +41,7 @@ $lang->my->noData          = "暂时没有%s。";
 $lang->my->storyChanged    = "需求变更";
 $lang->my->hours           = '工时/天';
 $lang->my->uploadAvatar    = '更换头像';
+$lang->my->epic            = "我的{$lang->ERCommon}";
 $lang->my->requirement     = "我的{$lang->URCommon}";
 $lang->my->testtask        = '我的测试单';
 $lang->my->testcase        = '我的用例';
@@ -150,10 +151,13 @@ $lang->my->moreSelects['todo']['more']['thisYear']        = '本年';
 $lang->my->moreSelects['todo']['more']['assignedToOther'] = '指派他人';
 $lang->my->moreSelects['todo']['more']['cycle']           = '周期';
 
-$lang->my->featureBar['audit']['all']      = '全部';
-$lang->my->featureBar['audit']['demand']   = '需求池需求';
-$lang->my->featureBar['audit']['story']    = '需求';
-$lang->my->featureBar['audit']['testcase'] = '用例';
+$lang->my->featureBar['audit']['all']         = '全部';
+$lang->my->featureBar['audit']['demand']      = '需求池需求';
+$lang->my->featureBar['audit']['story']       = $lang->SRCommon;
+$lang->my->featureBar['audit']['requirement'] = $lang->URCommon;
+$lang->my->featureBar['audit']['epic']        = $lang->ERCommon;
+$lang->my->featureBar['audit']['story']       = '需求';
+$lang->my->featureBar['audit']['testcase']    = '用例';
 if(in_array($config->edition, array('max', 'ipd')) and (helper::hasFeature('waterfall') or helper::hasFeature('waterfallplus'))) $lang->my->featureBar['audit']['project'] = $lang->projectCommon;
 if($config->edition != 'open') $lang->my->featureBar['audit']['feedback'] = '反馈';
 if($config->edition != 'open' and helper::hasFeature('OA')) $lang->my->featureBar['audit']['oa'] = '办公';
@@ -179,6 +183,9 @@ $lang->my->featureBar['work']['task']['assignedTo']     = $lang->my->assignedToM
 $lang->my->featureBar['work']['testcase']['assigntome'] = $lang->my->assignedToMe;
 $lang->my->featureBar['work']['testtask']['assignedTo'] = '由我负责';
 
+$lang->my->featureBar['work']['epic'] = $lang->my->featureBar['work']['task'];
+$lang->my->featureBar['work']['epic']['reviewBy'] = '待我评审';
+
 $lang->my->featureBar['work']['requirement'] = $lang->my->featureBar['work']['task'];
 $lang->my->featureBar['work']['requirement']['reviewBy'] = '待我评审';
 
@@ -191,6 +198,11 @@ $lang->my->featureBar['contribute']['task']['closedBy']   = '由我关闭';
 $lang->my->featureBar['contribute']['task']['canceledBy'] = '由我取消';
 $lang->my->featureBar['contribute']['task']['assignedBy'] = '由我指派';
 
+$lang->my->featureBar['contribute']['epic']['openedBy']   = '由我创建';
+$lang->my->featureBar['contribute']['epic']['reviewedBy'] = '我评审过';
+$lang->my->featureBar['contribute']['epic']['closedBy']   = '由我关闭';
+$lang->my->featureBar['contribute']['epic']['assignedBy'] = '由我指派';
+
 $lang->my->featureBar['contribute']['requirement']['openedBy']   = '由我创建';
 $lang->my->featureBar['contribute']['requirement']['reviewedBy'] = '我评审过';
 $lang->my->featureBar['contribute']['requirement']['closedBy']   = '由我关闭';
diff --git a/module/my/model.php b/module/my/model.php
index c4f217f6c5..6307cc1daa 100644
--- a/module/my/model.php
+++ b/module/my/model.php
@@ -710,6 +710,44 @@ class myModel extends model
         return $this->myTao->fetchStoriesBySearch($myStoryQuery, $type, $orderBy, $pager, $type == 'contribute' ? $this->getAssignedByMe($this->app->user->account, null, $orderBy, 'story') : array());
     }
 
+    /**
+     * 构建业务需求搜索表单。
+     * Build epic search form.
+     *
+     * @param  int    $queryID
+     * @param  string $actionURL
+     * @access public
+     * @return void
+     */
+    public function buildEpicSearchForm(int $queryID, string $actionURL): void
+    {
+        $products = $this->dao->select('id,name')->from(TABLE_PRODUCT)
+            ->where('deleted')->eq(0)
+            ->beginIF(!$this->app->user->admin)->andWhere('id')->in($this->app->user->view->products)->fi()
+            ->orderBy('order_asc')
+            ->fetchPairs();
+
+        $productIdList = array_keys($products);
+        $queryName     = $this->app->rawMethod . 'Epic';
+        $this->app->loadConfig('product');
+        $this->config->product->search['module']                      = $queryName;
+        $this->config->product->search['queryID']                     = $queryID;
+        $this->config->product->search['actionURL']                   = $actionURL;
+        $this->config->product->search['params']['product']['values'] = $products;
+        $this->config->product->search['params']['plan']['values']    = $this->loadModel('productplan')->getPairs($productIdList);
+
+        $this->lang->story->title  = str_replace($this->lang->SRCommon, $this->lang->ERCommon, $this->lang->story->title);
+        $this->lang->story->create = str_replace($this->lang->SRCommon, $this->lang->ERCommon, $this->lang->story->create);
+        $this->config->product->search['fields']['title'] = $this->lang->story->title;
+
+        unset($this->config->product->search['fields']['plan']);
+        unset($this->config->product->search['fields']['stage']);
+        unset($this->config->product->search['fields']['module']);
+        unset($this->config->product->search['fields']['branch']);
+
+        $this->loadModel('search')->setSearchParams($this->config->product->search);
+    }
+
     /**
      * 构建用户需求搜索表单。
      * Build Requirement search form.
@@ -777,6 +815,48 @@ class myModel extends model
         return true;
     }
 
+    /**
+     * 通过搜索获取业务需求。
+     * Get epics by search.
+     *
+     * @param  int    $queryID
+     * @param  string $type
+     * @param  string $orderBy
+     * @param  object $pager
+     * @access public
+     * @return array
+     */
+    public function getEpicsBySearch(int $queryID, string $type, string $orderBy, object $pager = null): array
+    {
+        $queryName = $type == 'contribute' ? 'contributeEpicQuery' : 'workEpicQuery';
+        $queryForm = $type == 'contribute' ? 'contributeEpicForm' : 'workEpicForm';
+        if($queryID)
+        {
+            $query = $this->loadModel('search')->getQuery($queryID);
+            if($query)
+            {
+                $this->session->set($queryName, $query->sql);
+                $this->session->set($queryForm, $query->form);
+            }
+            else
+            {
+                $this->session->set($queryName, ' 1 = 1');
+            }
+        }
+        else
+        {
+            if($this->session->{$queryName} == false) $this->session->set($queryName, ' 1 = 1');
+        }
+
+        $myEpicQuery = $this->session->{$queryName};
+        $myEpicQuery = preg_replace('/`(\w+)`/', 't1.`$1`', $myEpicQuery);
+
+        $epicsAssignedByMe = $type == 'contribute' ? $this->getAssignedByMe($this->app->user->account, null, $orderBy, 'epic') : array();
+        $epicIdList        = array_keys($epicsAssignedByMe);
+
+        return $this->myTao->fetchEpicsBySearch($myEpicQuery, $type, $orderBy, $pager, $epicIdList, 'epic');
+    }
+
     /**
      * 通过搜索获取用户需求。
      * Get requirements by search.
@@ -830,7 +910,9 @@ class myModel extends model
     {
         $typeList = array();
         if($this->config->edition == 'ipd' && $this->getReviewingDemands('id_desc', true)) $typeList[] = 'demand';
-        if($this->getReviewingStories('id_desc', true))   $typeList[] = 'story';
+        if($this->getReviewingStories('id_desc', true, 'story'))       $typeList[] = 'story';
+        if($this->getReviewingStories('id_desc', true, 'epic'))        $typeList[] = 'epic';
+        if($this->getReviewingStories('id_desc', true, 'requirement')) $typeList[] = 'requirement';
         if($this->config->vision != 'or' && $this->getReviewingCases('id_desc', true))     $typeList[] = 'testcase';
         if($this->config->vision != 'or' && $this->getReviewingApprovals('id_desc', true)) $typeList[] = 'project';
         if($this->getReviewingFeedbacks('id_desc', true)) $typeList[] = 'feedback';
@@ -865,6 +947,8 @@ class myModel extends model
         $reviewList = array();
         if($browseType == 'all' || $browseType == 'demand')                                       $reviewList = array_merge($reviewList, $this->getReviewingDemands());
         if($browseType == 'all' || $browseType == 'story')                                        $reviewList = array_merge($reviewList, $this->getReviewingStories());
+        if($browseType == 'all' || $browseType == 'epic')                                         $reviewList = array_merge($reviewList, $this->getReviewingStories('id_desc', false, 'epic'));
+        if($browseType == 'all' || $browseType == 'requirement')                                  $reviewList = array_merge($reviewList, $this->getReviewingStories('id_desc', false, 'requirement'));
         if($vision != 'or' && ($browseType == 'all' || $browseType == 'testcase'))                $reviewList = array_merge($reviewList, $this->getReviewingCases());
         if($vision != 'or' && ($browseType == 'all' || $browseType == 'project'))                 $reviewList = array_merge($reviewList, $this->getReviewingApprovals());
         if($browseType == 'all' || $browseType == 'feedback')                                     $reviewList = array_merge($reviewList, $this->getReviewingFeedbacks());
@@ -954,7 +1038,7 @@ class myModel extends model
      * @access public
      * @return array|bool
      */
-    public function getReviewingStories(string $orderBy = 'id_desc', bool $checkExists = false): array|bool
+    public function getReviewingStories(string $orderBy = 'id_desc', bool $checkExists = false, $type = 'story'): array|bool
     {
         if(!common::hasPriv('story', 'review')) return array();
 
@@ -965,6 +1049,7 @@ class myModel extends model
             ->beginIF(!$this->app->user->admin)->andWhere('t1.product')->in($this->app->user->view->products)->fi()
             ->andWhere('t2.reviewer')->eq($this->app->user->account)
             ->andWhere('t2.result')->eq('')
+            ->andWhere('t1.type')->eq($type)
             ->andWhere('t1.vision')->eq($this->config->vision)
             ->andWhere('t1.status')->eq('reviewing')
             ->orderBy($orderBy)
diff --git a/module/my/tao.php b/module/my/tao.php
index 06a95070f9..edcfc775b3 100644
--- a/module/my/tao.php
+++ b/module/my/tao.php
@@ -170,6 +170,61 @@ class myTao extends myModel
         return $stories;
     }
 
+    /**
+     * 通过搜索查找业务需求。
+     * Fetch epics by search.
+     *
+     * @param  string    $myEpicQuery
+     * @param  string    $type
+     * @param  string    $orderBy
+     * @param  object    $pager
+     * @param  array     $epicIDList
+     * @access protected
+     * @return array
+     */
+    protected function fetchEpicsBySearch(string $myEpicQuery, string $type, string $orderBy, object $pager = null, array $epicIDList = array()): array
+    {
+         if($type == 'contribute')
+         {
+            $epics = $this->dao->select("distinct t1.*, IF(t1.`pri` = 0, {$this->config->maxPriValue}, t1.`pri`) as priOrder, t2.name as productTitle")->from(TABLE_STORY)->alias('t1')
+                ->leftJoin(TABLE_PRODUCT)->alias('t2')->on('t1.product = t2.id')
+                ->leftJoin(TABLE_STORYREVIEW)->alias('t3')->on('t1.id = t3.story')
+                ->where($myEpicQuery)
+                ->andWhere('t1.type')->eq('epic')
+                ->andWhere('t1.openedBy',1)->eq($this->app->user->account)
+                ->orWhere('t1.closedBy')->eq($this->app->user->account)
+                ->orWhere('(t3.reviewer')->eq($this->app->user->account)
+                ->andWhere('t3.result')->eq('')
+                ->andWhere('t1.status')->eq('reviewing')
+                ->markRight(1)
+                ->orWhere('t1.id')->in($epicIDList)
+                ->markRight(1)
+                ->andWhere('t1.deleted')->eq(0)
+                ->orderBy($orderBy)
+                ->page($pager, 't1.id')
+                ->fetchAll('id');
+         }
+         else
+         {
+             $epics = $this->dao->select("distinct t1.*, IF(t1.`pri` = 0, {$this->config->maxPriValue}, t1.`pri`) as priOrder, t2.name as productTitle")->from(TABLE_STORY)->alias('t1')
+                ->leftJoin(TABLE_PRODUCT)->alias('t2')->on('t1.product = t2.id')
+                ->leftJoin(TABLE_STORYREVIEW)->alias('t3')->on('t1.id = t3.story')
+                ->where($myEpicQuery)
+                ->andWhere('t1.type')->eq('epic')
+                ->andWhere('t1.assignedTo',1)->eq($this->app->user->account)
+                ->orWhere('(t3.reviewer')->eq($this->app->user->account)
+                ->andWhere('t3.result')->eq('')
+                ->andWhere('t1.status')->eq('reviewing')
+                ->markRight(1)
+                ->markRight(1)
+                ->andWhere('t1.deleted')->eq(0)
+                ->orderBy($orderBy)
+                ->page($pager, 't1.id')
+                ->fetchAll('id');
+         }
+         return $epics;
+    }
+
     /**
      * 通过搜索查找用户需求。
      * Fetch requirements by search.
diff --git a/module/my/test/lib/my.unittest.class.php b/module/my/test/lib/my.unittest.class.php
index 307ae06ee0..6ffea2872d 100644
--- a/module/my/test/lib/my.unittest.class.php
+++ b/module/my/test/lib/my.unittest.class.php
@@ -164,6 +164,25 @@ class myTest
         return implode(',', array_keys($objects));
     }
 
+    /**
+     * 测试通过搜索获取业务需求。
+     * Test get requirements by search.
+     *
+     * @param  int          $queryID
+     * @param  string       $type
+     * @param  string       $orderBy
+     * @access public
+     * @return string|array
+     */
+    public function getEpicsBySearchTest(int $queryID, string $type, string $orderBy): string|array
+    {
+        $objects = $this->objectModel->getEpicsBySearch($queryID, $type, $orderBy);
+
+        if(dao::isError()) return dao::getError();
+
+        return implode(',', array_keys($objects));
+    }
+
     /**
      * 测试通过搜索获取用户需求。
      * Test get requirements by search.
diff --git a/module/my/test/model/getepicsbysearch.php b/module/my/test/model/getepicsbysearch.php
new file mode 100755
index 0000000000..517174d8de
--- /dev/null
+++ b/module/my/test/model/getepicsbysearch.php
@@ -0,0 +1,37 @@
+#!/usr/bin/env php
+<?php
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+include dirname(__FILE__, 2) . '/lib/my.unittest.class.php';
+
+zenData('story')->loadYaml('epic')->gen('20');
+zenData('storyreview')->gen('0');
+zenData('product')->gen('10');
+zenData('productplan')->gen('15');
+zenData('planstory')->gen('20');
+zenData('userquery')->loadYaml('userquery')->gen('2');
+zenData('user')->gen('1');
+zenData('action')->gen('0');
+
+su('admin');
+
+/**
+
+title=测试 myModel->getEpicsBySearch();
+cid=1
+pid=1
+
+*/
+
+$_SESSION['contributeEpicQuery'] = '';
+$_SESSION['workEpicQuery'] = '';
+
+$my       = new myTest();
+$queryID  = array(0, 2);
+$typeList = array('contribute', 'other');
+$orderBy  = array('id_desc', 'id_asc');
+r($my->getEpicsBySearchTest($queryID[0], $typeList[1], $orderBy[0])) && p() && e('15,13,11'); // 测试获取 queryID 0 类型 other 排序 id_desc 的需求。
+r($my->getEpicsBySearchTest($queryID[0], $typeList[1], $orderBy[1])) && p() && e('11,13,15'); // 测试获取 queryID 0 类型 other 排序 id_asc 的需求。
+r($my->getEpicsBySearchTest($queryID[1], $typeList[0], $orderBy[0])) && p() && e('13');       // 测试获取 queryID 1 类型 contribute 排序 id_desc 的需求。
+r($my->getEpicsBySearchTest($queryID[1], $typeList[0], $orderBy[1])) && p() && e('13');       // 测试获取 queryID 1 类型 contribute 排序 id_asc 的需求。
+r($my->getEpicsBySearchTest($queryID[1], $typeList[1], $orderBy[0])) && p() && e('15,13,11'); // 测试获取 queryID 1 类型 other 排序 id_desc 的需求。
+r($my->getEpicsBySearchTest($queryID[1], $typeList[1], $orderBy[1])) && p() && e('11,13,15'); // 测试获取 queryID 1 类型 other 排序 id_asc 的需求。
diff --git a/module/my/test/yaml/epic.yaml b/module/my/test/yaml/epic.yaml
new file mode 100644
index 0000000000..c549523317
--- /dev/null
+++ b/module/my/test/yaml/epic.yaml
@@ -0,0 +1,9 @@
+title: zt_story
+desc: epic data.
+author: Sun Guangming
+version: "1.0"
+fields:
+  - field: assignedTo
+    range: admin,user1
+  - field: type
+    range: story{5},requirement{5},epic{5}
diff --git a/module/my/ui/audit.html.php b/module/my/ui/audit.html.php
index 9fa551924d..1abf8545a9 100644
--- a/module/my/ui/audit.html.php
+++ b/module/my/ui/audit.html.php
@@ -18,7 +18,6 @@ foreach(array_keys($lang->my->featureBar['audit']) as $type)
     $reviewPrivs[$type] = $priv;
 }
 
-jsVar('viewLink',   createLink('{module}', 'view',   'id={id}'));
 jsVar('reviewLink', createLink('{module}', 'review', 'id={id}'));
 jsVar('flowReviewLink', createLink('{module}', 'approvalreview', 'id={id}'));
 jsVar('reviewPrivs', $reviewPrivs);
@@ -50,9 +49,20 @@ foreach($reviewList as $review)
     $review->module = $type;
 
     if(isset($lang->{$review->type}->common)) $typeName = $lang->{$review->type}->common;
-    if($type == 'story')                      $typeName = $review->storyType == 'story' ? $lang->SRCommon : $lang->URCommon;
     if($review->type == 'projectreview')      $typeName = $lang->project->common;
     if(isset($flows[$review->type]))          $typeName = $flows[$review->type];
+    if($type == 'story')
+    {
+        $typeName = $lang->SRCommon;
+        if($review->storyType == 'epic')
+        {
+            $typeName = $lang->ERCommon;
+        }
+        elseif($review->storyType == 'requirement')
+        {
+            $typeName = $lang->ERCommon;
+        }
+    }
 
     $statusList = array();
     if(isset($lang->$type->statusList)) $statusList = $lang->$type->statusList;
@@ -80,6 +90,8 @@ foreach($reviewList as $review)
 
         $review->result = zget($reviewResultList, $review->result);
     }
+
+    $review->module = isset($review->storyType) ? $review->storyType : $review->module;
 }
 
 $reviewList = initTableData($reviewList, $config->my->audit->dtable->fieldList, $this->my);
diff --git a/module/my/ui/epic.html.php b/module/my/ui/epic.html.php
new file mode 100644
index 0000000000..65150a2302
--- /dev/null
+++ b/module/my/ui/epic.html.php
@@ -0,0 +1,117 @@
+<?php
+declare(strict_types=1);
+/**
+ * The epic view file of my module of ZenTaoPMS.
+ * @copyright   Copyright 2009-2023 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.zentao.net)
+ * @license     ZPL(https://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ * @author      Yuting Wang <wangyuting@easycorp.ltd>
+ * @package     my
+ * @link        https://www.zentao.net
+ */
+namespace zin;
+
+include 'header.html.php';
+jsVar('window.globalSearchType', 'epic');
+jsVar('showGrade',  $showGrade);
+jsVar('gradeGroup', $gradeGroup);
+
+featureBar
+(
+    set::current($type),
+    set::linkParams("mode=epic&type={key}&param={$param}"),
+    li(searchToggle(set::module($this->app->rawMethod . 'Epic'), set::open($type == 'bysearch')))
+);
+
+$viewType = $this->cookie->storyViewType ? $this->cookie->storyViewType : 'tree';
+toolbar
+(
+    item(set(array
+    (
+        'type'  => 'btnGroup',
+        'items' => array(array
+        (
+            'icon'      => 'list',
+            'class'     => 'btn-icon switchButton' . ($viewType == 'tiled' ? ' text-primary' : ''),
+            'data-type' => 'tiled',
+            'hint'      => $lang->story->viewTypeList['tiled']
+        ), array
+        (
+            'icon'      => 'treeview',
+            'class'     => 'switchButton btn-icon' . ($viewType == 'tree' ? ' text-primary' : ''),
+            'data-type' => 'tree',
+            'hint'      => $lang->story->viewTypeList['tree']
+        ))
+    )))
+);
+
+$canBatchEdit     = common::hasPriv('epic', 'batchEdit');
+$canBatchReview   = common::hasPriv('epic', 'batchReview');
+$canBatchAssignTo = common::hasPriv('epic', 'batchAssignTo');
+$canBatchClose    = common::hasPriv('epic', 'batchClose');
+$canBatchAction   = $canBatchEdit || $canBatchReview || $canBatchAssignTo || $canBatchClose;
+
+$reviewItems = array();
+if($canBatchReview)
+{
+    $rejectItems = array();
+    foreach($lang->story->reasonList as $key => $reason)
+    {
+        if(!$key || $key == 'subdivided' || $key == 'duplicate') continue;
+        $rejectItems[] = array('text' => $reason, 'innerClass' => 'batch-btn ajax-btn not-open-url', 'data-url' => helper::createLink('epic', 'batchReview', "result=reject&reason={$key}&storyType=epic"));
+    }
+
+    foreach($lang->story->reviewResultList as $key => $result)
+    {
+        if(!$key || $key == 'revert') continue;
+        if($key == 'reject')
+        {
+            $reviewItems[] = array('text' => $result, 'class' => 'not-hide-menu', 'items' => $rejectItems);
+        }
+        else
+        {
+            $reviewItems[] = array('text' => $result, 'innerClass' => 'batch-btn ajax-btn not-open-url', 'data-url' => helper::createLink('epic', 'batchReview', "result={$key}&reason=&storyType=epic"));
+        }
+    }
+}
+
+$assignedToItems = array();
+if($canBatchAssignTo)
+{
+    foreach($users as $key => $value)
+    {
+        if(empty($key) || $key == 'closed') continue;
+        $assignedToItems[] = array('text' => $value, 'innerClass' => 'batch-btn ajax-btn not-open-url', 'data-url' => helper::createLink('epic', 'batchAssignTo', "storyType=epic&assignedTo={$key}"));
+    }
+}
+
+$footToolbar = array('items' => array
+(
+    $canBatchEdit ?     array('text' => $lang->edit, 'className' => 'batch-btn', 'data-url' => helper::createLink('epic', 'batchEdit', "productID=0&executionID=0&branch=0&storyType=epic&from={$app->rawMethod}")) : null,
+    $canBatchReview ?   array('caret' => 'up', 'text' => $lang->story->review, 'type' => 'dropdown', 'items' => $reviewItems, 'data-placement' => 'top-start') : null,
+    $canBatchAssignTo ? array('caret' => 'up', 'text' => $lang->story->assignedTo, 'type' => 'dropdown', 'items' => $assignedToItems, 'data-placement' => 'top-start') : null,
+    $canBatchClose ?    array('text' => $lang->story->close, 'className' => 'batch-btn', 'data-url' => helper::createLink('epic', 'batchClose', "productID=0&executionID=0&storyType=epic&from={$app->rawMethod}")) : null
+), 'btnProps' => array('size' => 'sm', 'btnType' => 'secondary'));
+
+if($canBatchAction) $config->my->epic->dtable->fieldList['id']['type'] = 'checkID';
+
+$stories = initTableData($stories, $config->my->epic->dtable->fieldList, $this->story);
+
+if($viewType == 'tiled') $config->my->epic->dtable->fieldList['title']['nestedToggle'] = false;
+$cols = array_values($config->my->epic->dtable->fieldList);
+$data = array_values($stories);
+dtable
+(
+    set::cols($cols),
+    set::data($data),
+    set::userMap($users),
+    set::fixedLeftWidth('44%'),
+    set::checkable($canBatchAction ? true : false),
+    set::onRenderCell(jsRaw('window.renderCell')),
+    set::orderBy($orderBy),
+    set::sortLink(createLink('my', $app->rawMethod, "mode={$mode}&type={$type}&param={$param}&orderBy={name}_{sortType}&recTotal={$pager->recTotal}&recPerPage={$pager->recPerPage}&pageID={$pager->pageID}")),
+    set::footToolbar($footToolbar),
+    set::footPager(usePager()),
+    set::emptyTip(sprintf($lang->my->noData, $lang->ERCommon))
+);
+
+render();
diff --git a/module/my/ui/header.html.php b/module/my/ui/header.html.php
index 66172de53a..2a9defd62e 100644
--- a/module/my/ui/header.html.php
+++ b/module/my/ui/header.html.php
@@ -10,21 +10,13 @@ declare(strict_types=1);
  */
 namespace zin;
 
-$badgesOptions = array();
-$badgesOptions['mode']            = $mode;
-$badgesOptions['todoCount']       = $todoCount;
-$badgesOptions['isIPD']           = $isIPD;
-$badgesOptions['isMax']           = $isMax;
-$badgesOptions['isBiz']           = $isBiz;
-$badgesOptions['isOpenedURAndSR'] = $isOpenedURAndSR;
-$badgesOptions['rawMethod']       = $app->rawMethod;
-
 if($app->rawMethod == 'work')
 {
     $badgeMap = array();
     $nameMap = array('task' =>'task', 'story' =>'story', 'bug' =>'bug', 'testcase' =>'case', 'testtask' =>'testtask');
 
     if($isOpenedURAndSR !== 0)                       $nameMap = array_merge($nameMap, array('requirement' => 'requirement'));
+    if($config->enableER)                            $nameMap = array_merge($nameMap, array('epic' => 'epic'));
     if($isBiz !== 0 || $isMax !== 0 || $isIPD !== 0) $nameMap = array_merge($nameMap, array('feedback' => 'feedback', 'ticket' => 'ticket'));
     if($isMax !== 0 || $isIPD !== 0)                 $nameMap = array_merge($nameMap, array('issue' => 'issue', 'risk' => 'risk', 'nc' => 'qa', 'myMeeting' => 'meeting'));
     if($isIPD !== 0)                                 $nameMap = array_merge($nameMap, array('demand' => 'demand'));
diff --git a/module/my/ui/requirement.html.php b/module/my/ui/requirement.html.php
index 437b922f57..aa9bde261e 100644
--- a/module/my/ui/requirement.html.php
+++ b/module/my/ui/requirement.html.php
@@ -11,6 +11,9 @@ declare(strict_types=1);
 namespace zin;
 
 include 'header.html.php';
+jsVar('window.globalSearchType', 'requirement');
+jsVar('showGrade',  $showGrade);
+jsVar('gradeGroup', $gradeGroup);
 
 jsVar('recall',       $lang->story->recall);
 jsVar('recallChange', $lang->story->recallChange);
@@ -22,10 +25,32 @@ featureBar
     li(searchToggle(set::module($this->app->rawMethod . 'Requirement'), set::open($type == 'bysearch')))
 );
 
-$canBatchEdit     = common::hasPriv('story', 'batchEdit');
-$canBatchReview   = common::hasPriv('story', 'batchReview');
-$canBatchAssignTo = common::hasPriv('story', 'batchAssignTo');
-$canBatchClose    = common::hasPriv('story', 'batchClose');
+$viewType = $this->cookie->storyViewType ? $this->cookie->storyViewType : 'tree';
+toolbar
+(
+    item(set(array
+    (
+        'type'  => 'btnGroup',
+        'items' => array(array
+        (
+            'icon'      => 'list',
+            'class'     => 'btn-icon switchButton' . ($viewType == 'tiled' ? ' text-primary' : ''),
+            'data-type' => 'tiled',
+            'hint'      => $lang->story->viewTypeList['tiled']
+        ), array
+        (
+            'icon'      => 'treeview',
+            'class'     => 'switchButton btn-icon' . ($viewType == 'tree' ? ' text-primary' : ''),
+            'data-type' => 'tree',
+            'hint'      => $lang->story->viewTypeList['tree']
+        ))
+    )))
+);
+
+$canBatchEdit     = common::hasPriv('requirement', 'batchEdit');
+$canBatchReview   = common::hasPriv('requirement', 'batchReview');
+$canBatchAssignTo = common::hasPriv('requirement', 'batchAssignTo');
+$canBatchClose    = common::hasPriv('requirement', 'batchClose');
 $canBatchAction   = $canBatchEdit || $canBatchReview || $canBatchAssignTo || $canBatchClose;
 
 $reviewItems = array();
@@ -35,7 +60,7 @@ if($canBatchReview)
     foreach($lang->story->reasonList as $key => $reason)
     {
         if(!$key || $key == 'subdivided' || $key == 'duplicate') continue;
-        $rejectItems[] = array('text' => $reason, 'innerClass' => 'batch-btn ajax-btn not-open-url', 'data-url' => helper::createLink('story', 'batchReview', "result=reject&reason={$key}&storyType=requirement"));
+        $rejectItems[] = array('text' => $reason, 'innerClass' => 'batch-btn ajax-btn not-open-url', 'data-url' => helper::createLink('requirement', 'batchReview', "result=reject&reason={$key}&storyType=requirement"));
     }
 
     foreach($lang->story->reviewResultList as $key => $result)
@@ -47,7 +72,7 @@ if($canBatchReview)
         }
         else
         {
-            $reviewItems[] = array('text' => $result, 'innerClass' => 'batch-btn ajax-btn not-open-url', 'data-url' => helper::createLink('story', 'batchReview', "result={$key}&reason=&storyType=requirement"));
+            $reviewItems[] = array('text' => $result, 'innerClass' => 'batch-btn ajax-btn not-open-url', 'data-url' => helper::createLink('requirement', 'batchReview', "result={$key}&reason=&storyType=requirement"));
         }
     }
 }
@@ -58,23 +83,25 @@ if($canBatchAssignTo)
     foreach($users as $key => $value)
     {
         if(empty($key) || $key == 'closed') continue;
-        $assignedToItems[] = array('text' => $value, 'innerClass' => 'batch-btn ajax-btn not-open-url', 'data-url' => helper::createLink('story', 'batchAssignTo', "storyType=requirement&assignedTo={$key}"));
+        $assignedToItems[] = array('text' => $value, 'innerClass' => 'batch-btn ajax-btn not-open-url', 'data-url' => helper::createLink('requirement', 'batchAssignTo', "storyType=requirement&assignedTo={$key}"));
     }
 }
 
 $footToolbar = array('items' => array
 (
-    $canBatchEdit ?     array('text' => $lang->edit, 'className' => 'batch-btn', 'data-url' => helper::createLink('story', 'batchEdit', "productID=0&executionID=0&branch=0&storyType=requirement&from={$app->rawMethod}")) : null,
+    $canBatchEdit ?     array('text' => $lang->edit, 'className' => 'batch-btn', 'data-url' => helper::createLink('requirement', 'batchEdit', "productID=0&executionID=0&branch=0&storyType=requirement&from={$app->rawMethod}")) : null,
     $canBatchReview ?   array('caret' => 'up', 'text' => $lang->story->review, 'type' => 'dropdown', 'items' => $reviewItems, 'data-placement' => 'top-start') : null,
     $canBatchAssignTo ? array('caret' => 'up', 'text' => $lang->story->assignedTo, 'type' => 'dropdown', 'items' => $assignedToItems, 'data-placement' => 'top-start') : null,
-    $canBatchClose ?    array('text' => $lang->story->close, 'className' => 'batch-btn', 'data-url' => helper::createLink('story', 'batchClose', "productID=0&executionID=0&storyType=requirement&from={$app->rawMethod}")) : null
+    $canBatchClose ?    array('text' => $lang->story->close, 'className' => 'batch-btn', 'data-url' => helper::createLink('requirement', 'batchClose', "productID=0&executionID=0&storyType=requirement&from={$app->rawMethod}")) : null
 ), 'btnProps' => array('size' => 'sm', 'btnType' => 'secondary'));
 
 if($canBatchAction) $config->my->requirement->dtable->fieldList['id']['type'] = 'checkID';
 
 $stories = initTableData($stories, $config->my->requirement->dtable->fieldList, $this->story);
-$cols    = array_values($config->my->requirement->dtable->fieldList);
-$data    = array_values($stories);
+
+if($viewType == 'tiled') $config->my->requirement->dtable->fieldList['title']['nestedToggle'] = false;
+$cols = array_values($config->my->requirement->dtable->fieldList);
+$data = array_values($stories);
 dtable
 (
     set::cols($cols),
@@ -82,7 +109,7 @@ dtable
     set::userMap($users),
     set::fixedLeftWidth('44%'),
     set::checkable($canBatchAction ? true : false),
-    set::onRenderCell(jsRaw('window.onRenderCell')),
+    set::onRenderCell(jsRaw('window.renderCell')),
     set::orderBy($orderBy),
     set::sortLink(createLink('my', $app->rawMethod, "mode={$mode}&type={$type}&param={$param}&orderBy={name}_{sortType}&recTotal={$pager->recTotal}&recPerPage={$pager->recPerPage}&pageID={$pager->pageID}")),
     set::footToolbar($footToolbar),
diff --git a/module/my/ui/story.html.php b/module/my/ui/story.html.php
index bfe775a2ef..b8d8a23af6 100644
--- a/module/my/ui/story.html.php
+++ b/module/my/ui/story.html.php
@@ -14,7 +14,9 @@ include 'header.html.php';
 
 jsVar('children',   $lang->story->children);
 jsVar('childrenAB', $lang->story->childrenAB);
-jsVar('URChanged', $lang->story->URChanged);
+jsVar('showGrade',  $showGrade);
+jsVar('gradeGroup', $gradeGroup);
+jsVar('window.globalSearchType', 'story');
 
 featureBar
 (
@@ -23,6 +25,28 @@ featureBar
     li(searchToggle(set::module($this->app->rawMethod . 'Story'), set::open($type == 'bysearch')))
 );
 
+$viewType = $this->cookie->storyViewType ? $this->cookie->storyViewType : 'tree';
+toolbar
+(
+    item(set(array
+    (
+        'type'  => 'btnGroup',
+        'items' => array(array
+        (
+            'icon'      => 'list',
+            'class'     => 'btn-icon switchButton' . ($viewType == 'tiled' ? ' text-primary' : ''),
+            'data-type' => 'tiled',
+            'hint'      => $lang->story->viewTypeList['tiled']
+        ), array
+        (
+            'icon'      => 'treeview',
+            'class'     => 'switchButton btn-icon' . ($viewType == 'tree' ? ' text-primary' : ''),
+            'data-type' => 'tree',
+            'hint'      => $lang->story->viewTypeList['tree']
+        ))
+    )))
+);
+
 $canBatchEdit     = common::hasPriv('story', 'batchEdit');
 $canBatchReview   = common::hasPriv('story', 'batchReview');
 $canBatchAssignTo = common::hasPriv('story', 'batchAssignTo');
@@ -74,8 +98,10 @@ $footToolbar = array('items' => array
 if($canBatchAction) $config->my->story->dtable->fieldList['id']['type'] = 'checkID';
 
 $stories = initTableData($stories, $config->my->story->dtable->fieldList, $this->story);
-$cols    = array_values($config->my->story->dtable->fieldList);
-$data    = array_values($stories);
+
+if($viewType == 'tiled') $config->my->story->dtable->fieldList['title']['nestedToggle'] = false;
+$cols = array_values($config->my->story->dtable->fieldList);
+$data = array_values($stories);
 dtable
 (
     set::cols($cols),
diff --git a/module/my/zen.php b/module/my/zen.php
index 4ba3fa1b8f..babdfa5e21 100644
--- a/module/my/zen.php
+++ b/module/my/zen.php
@@ -192,6 +192,15 @@ class myZen extends my
             $count['requirement']     = $assignedRequirementCount + $reviewByRequirementCount;
         }
 
+        if($this->config->enableER)
+        {
+            $this->story->getUserStories($this->app->user->account, 'assignedTo', 'id_desc', $pager, 'epic', false, 'all');
+            $assignedEpicCount = $pager->recTotal;
+            $this->story->getUserStories($this->app->user->account, 'reviewBy', 'id_desc', $pager, 'epic', false, 'all');
+            $reviewByEpicCount = $pager->recTotal;
+            $count['epic']     = $assignedEpicCount + $reviewByEpicCount;
+        }
+
         /* Get the number of bugs assigned to me. */
         $this->loadModel('bug')->getUserBugs($this->app->user->account, 'assignedTo', 'id_desc', 0, $pager);
         $count['bug'] = $pager->recTotal;
diff --git a/module/product/config.php b/module/product/config.php
index afdad0e2b1..1f37f87128 100644
--- a/module/product/config.php
+++ b/module/product/config.php
@@ -17,7 +17,7 @@ if($config->systemMode == 'ALM' || $config->systemMode == 'PLM') $config->produc
 
 /* Export fields of product list page. */
 $config->product->list = new stdclass();
-$config->product->list->exportFields          = 'id,program,line,name,manager,draftStories,activeStories,changedStories,reviewingStories,closedStories,storyCompleteRate,unResolvedBugs,bugFixedRate,plans,releases';
+$config->product->list->exportFields          = 'id,program,line,name,manager,draftEpics,activeEpics,changedEpics,reviewingEpics,closedEpics,epicCompleteRate,draftRequirements,activeRequirements,changedRequirements,reviewingRequirements,closedRequirements,requirementCompleteRate,draftStories,activeStories,changedStories,reviewingStories,closedStories,storyCompleteRate,unResolvedBugs,bugFixedRate,plans,releases';
 $config->product->list->customCreateFields    = 'PO,RD,acl';
 $config->product->list->customBatchEditFields = 'PO,QD,RD,status,type,acl';
 if($config->systemMode == 'ALM' || $config->systemMode == 'PLM') $config->product->list->customBatchEditFields   .= ',program';
diff --git a/module/product/config/dtable.php b/module/product/config/dtable.php
index 9fa9609f98..b84929f586 100644
--- a/module/product/config/dtable.php
+++ b/module/product/config/dtable.php
@@ -195,53 +195,173 @@ $config->product->all->dtable->fieldList['createdDate']['type']     = 'date';
 $config->product->all->dtable->fieldList['createdDate']['sortType'] = true;
 $config->product->all->dtable->fieldList['createdDate']['group']    = '1';
 
-$config->product->all->dtable->fieldList['draftStories']['name']     = 'draftStories';
-$config->product->all->dtable->fieldList['draftStories']['title']    = $lang->product->draftStory;
-$config->product->all->dtable->fieldList['draftStories']['width']    = 64;
-$config->product->all->dtable->fieldList['draftStories']['type']     = 'number';
-$config->product->all->dtable->fieldList['draftStories']['show']     = true;
-$config->product->all->dtable->fieldList['draftStories']['sortType'] = true;
-$config->product->all->dtable->fieldList['draftStories']['group']    = 'g4';
+if($config->enableER)
+{
+    $config->product->all->dtable->fieldList['draftEpics']['name']        = 'draftEpics';
+    $config->product->all->dtable->fieldList['draftEpics']['title']       = $lang->product->draftStory;
+    $config->product->all->dtable->fieldList['draftEpics']['width']       = 64;
+    $config->product->all->dtable->fieldList['draftEpics']['type']        = 'number';
+    $config->product->all->dtable->fieldList['draftEpics']['show']        = true;
+    $config->product->all->dtable->fieldList['draftEpics']['sortType']    = true;
+    $config->product->all->dtable->fieldList['draftEpics']['group']       = 'epicCount';
+    $config->product->all->dtable->fieldList['draftEpics']['headerGroup'] = $lang->ERCommon;
 
-$config->product->all->dtable->fieldList['activeStories']['name']     = 'activeStories';
-$config->product->all->dtable->fieldList['activeStories']['title']    = $lang->product->activeStory;
-$config->product->all->dtable->fieldList['activeStories']['width']    = 64;
-$config->product->all->dtable->fieldList['activeStories']['type']     = 'number';
-$config->product->all->dtable->fieldList['activeStories']['show']     = true;
-$config->product->all->dtable->fieldList['activeStories']['sortType'] = true;
-$config->product->all->dtable->fieldList['activeStories']['group']    = 'g4';
+    $config->product->all->dtable->fieldList['activeEpics']['name']        = 'activeEpics';
+    $config->product->all->dtable->fieldList['activeEpics']['title']       = $lang->product->activeStory;
+    $config->product->all->dtable->fieldList['activeEpics']['width']       = 64;
+    $config->product->all->dtable->fieldList['activeEpics']['type']        = 'number';
+    $config->product->all->dtable->fieldList['activeEpics']['show']        = true;
+    $config->product->all->dtable->fieldList['activeEpics']['sortType']    = true;
+    $config->product->all->dtable->fieldList['activeEpics']['group']       = 'epicCount';
+    $config->product->all->dtable->fieldList['activeEpics']['headerGroup'] = $lang->ERCommon;
 
-$config->product->all->dtable->fieldList['changingStories']['name']     = 'changingStories';
-$config->product->all->dtable->fieldList['changingStories']['title']    = $lang->product->changingStory;
-$config->product->all->dtable->fieldList['changingStories']['width']    = 64;
-$config->product->all->dtable->fieldList['changingStories']['type']     = 'number';
-$config->product->all->dtable->fieldList['changingStories']['show']     = true;
-$config->product->all->dtable->fieldList['changingStories']['sortType'] = true;
-$config->product->all->dtable->fieldList['changingStories']['group']    = 'g4';
+    $config->product->all->dtable->fieldList['changingEpics']['name']        = 'changingEpics';
+    $config->product->all->dtable->fieldList['changingEpics']['title']       = $lang->product->changingStory;
+    $config->product->all->dtable->fieldList['changingEpics']['width']       = 64;
+    $config->product->all->dtable->fieldList['changingEpics']['type']        = 'number';
+    $config->product->all->dtable->fieldList['changingEpics']['show']        = true;
+    $config->product->all->dtable->fieldList['changingEpics']['sortType']    = true;
+    $config->product->all->dtable->fieldList['changingEpics']['group']       = 'epicCount';
+    $config->product->all->dtable->fieldList['changingEpics']['headerGroup'] = $lang->ERCommon;
 
-$config->product->all->dtable->fieldList['reviewingStories']['name']     = 'reviewingStories';
-$config->product->all->dtable->fieldList['reviewingStories']['title']    = $lang->product->reviewingStory;
-$config->product->all->dtable->fieldList['reviewingStories']['width']    = 64;
-$config->product->all->dtable->fieldList['reviewingStories']['type']     = 'number';
-$config->product->all->dtable->fieldList['reviewingStories']['show']     = true;
-$config->product->all->dtable->fieldList['reviewingStories']['sortType'] = true;
-$config->product->all->dtable->fieldList['reviewingStories']['group']    = 'g4';
+    $config->product->all->dtable->fieldList['reviewingEpics']['name']        = 'reviewingEpics';
+    $config->product->all->dtable->fieldList['reviewingEpics']['title']       = $lang->product->reviewingStory;
+    $config->product->all->dtable->fieldList['reviewingEpics']['width']       = 64;
+    $config->product->all->dtable->fieldList['reviewingEpics']['type']        = 'number';
+    $config->product->all->dtable->fieldList['reviewingEpics']['show']        = true;
+    $config->product->all->dtable->fieldList['reviewingEpics']['sortType']    = true;
+    $config->product->all->dtable->fieldList['reviewingEpics']['group']       = 'epicCount';
+    $config->product->all->dtable->fieldList['reviewingEpics']['headerGroup'] = $lang->ERCommon;
 
-$config->product->all->dtable->fieldList['totalStories']['name']     = 'totalStories';
-$config->product->all->dtable->fieldList['totalStories']['title']    = $lang->product->totalStories;
-$config->product->all->dtable->fieldList['totalStories']['width']    = 92;
-$config->product->all->dtable->fieldList['totalStories']['minWidth'] = 100;
-$config->product->all->dtable->fieldList['totalStories']['type']     = 'number';
-$config->product->all->dtable->fieldList['totalStories']['sortType'] = true;
-$config->product->all->dtable->fieldList['totalStories']['group']    = 'g4';
+    $config->product->all->dtable->fieldList['totalEpics']['name']        = 'totalEpics';
+    $config->product->all->dtable->fieldList['totalEpics']['title']       = $lang->product->totalStories;
+    $config->product->all->dtable->fieldList['totalEpics']['width']       = 92;
+    $config->product->all->dtable->fieldList['totalEpics']['minWidth']    = 100;
+    $config->product->all->dtable->fieldList['totalEpics']['type']        = 'number';
+    $config->product->all->dtable->fieldList['totalEpics']['sortType']    = true;
+    $config->product->all->dtable->fieldList['totalEpics']['group']       = 'epicCount';
+    $config->product->all->dtable->fieldList['totalEpics']['headerGroup'] = $lang->ERCommon;
 
-$config->product->all->dtable->fieldList['storyCompleteRate']['name']     = 'storyCompleteRate';
-$config->product->all->dtable->fieldList['storyCompleteRate']['title']    = $lang->product->completeRate;
-$config->product->all->dtable->fieldList['storyCompleteRate']['width']    = 64;
-$config->product->all->dtable->fieldList['storyCompleteRate']['type']     = 'progress';
-$config->product->all->dtable->fieldList['storyCompleteRate']['show']     = true;
-$config->product->all->dtable->fieldList['storyCompleteRate']['sortType'] = false;
-$config->product->all->dtable->fieldList['storyCompleteRate']['group']    = 'g4';
+    $config->product->all->dtable->fieldList['epicCompleteRate']['name']        = 'epicCompleteRate';
+    $config->product->all->dtable->fieldList['epicCompleteRate']['title']       = $lang->product->completeRate;
+    $config->product->all->dtable->fieldList['epicCompleteRate']['width']       = 64;
+    $config->product->all->dtable->fieldList['epicCompleteRate']['type']        = 'progress';
+    $config->product->all->dtable->fieldList['epicCompleteRate']['show']        = true;
+    $config->product->all->dtable->fieldList['epicCompleteRate']['sortType']    = false;
+    $config->product->all->dtable->fieldList['epicCompleteRate']['group']       = 'epicCount';
+    $config->product->all->dtable->fieldList['epicCompleteRate']['headerGroup'] = $lang->ERCommon;
+}
+
+if($config->URAndSR)
+{
+    $config->product->all->dtable->fieldList['draftRequirements']['name']        = 'draftRequirements';
+    $config->product->all->dtable->fieldList['draftRequirements']['title']       = $lang->product->draftStory;
+    $config->product->all->dtable->fieldList['draftRequirements']['width']       = 64;
+    $config->product->all->dtable->fieldList['draftRequirements']['type']        = 'number';
+    $config->product->all->dtable->fieldList['draftRequirements']['show']        = true;
+    $config->product->all->dtable->fieldList['draftRequirements']['sortType']    = true;
+    $config->product->all->dtable->fieldList['draftRequirements']['group']       = 'requirementCount';
+    $config->product->all->dtable->fieldList['draftRequirements']['headerGroup'] = $lang->URCommon;
+
+    $config->product->all->dtable->fieldList['activeRequirements']['name']        = 'activeRequirements';
+    $config->product->all->dtable->fieldList['activeRequirements']['title']       = $lang->product->activeStory;
+    $config->product->all->dtable->fieldList['activeRequirements']['width']       = 64;
+    $config->product->all->dtable->fieldList['activeRequirements']['type']        = 'number';
+    $config->product->all->dtable->fieldList['activeRequirements']['show']        = true;
+    $config->product->all->dtable->fieldList['activeRequirements']['sortType']    = true;
+    $config->product->all->dtable->fieldList['activeRequirements']['group']       = 'requirementCount';
+    $config->product->all->dtable->fieldList['activeRequirements']['headerGroup'] = $lang->URCommon;
+
+    $config->product->all->dtable->fieldList['changingRequirements']['name']        = 'changingRequirements';
+    $config->product->all->dtable->fieldList['changingRequirements']['title']       = $lang->product->changingStory;
+    $config->product->all->dtable->fieldList['changingRequirements']['width']       = 64;
+    $config->product->all->dtable->fieldList['changingRequirements']['type']        = 'number';
+    $config->product->all->dtable->fieldList['changingRequirements']['show']        = true;
+    $config->product->all->dtable->fieldList['changingRequirements']['sortType']    = true;
+    $config->product->all->dtable->fieldList['changingRequirements']['group']       = 'requirementCount';
+    $config->product->all->dtable->fieldList['changingRequirements']['headerGroup'] = $lang->URCommon;
+
+    $config->product->all->dtable->fieldList['reviewingRequirements']['name']        = 'reviewingRequirements';
+    $config->product->all->dtable->fieldList['reviewingRequirements']['title']       = $lang->product->reviewingStory;
+    $config->product->all->dtable->fieldList['reviewingRequirements']['width']       = 64;
+    $config->product->all->dtable->fieldList['reviewingRequirements']['type']        = 'number';
+    $config->product->all->dtable->fieldList['reviewingRequirements']['show']        = true;
+    $config->product->all->dtable->fieldList['reviewingRequirements']['sortType']    = true;
+    $config->product->all->dtable->fieldList['reviewingRequirements']['group']       = 'requirementCount';
+    $config->product->all->dtable->fieldList['reviewingRequirements']['headerGroup'] = $lang->URCommon;
+
+    $config->product->all->dtable->fieldList['totalRequirements']['name']        = 'totalRequirements';
+    $config->product->all->dtable->fieldList['totalRequirements']['title']       = $lang->product->totalStories;
+    $config->product->all->dtable->fieldList['totalRequirements']['width']       = 92;
+    $config->product->all->dtable->fieldList['totalRequirements']['minWidth']    = 100;
+    $config->product->all->dtable->fieldList['totalRequirements']['type']        = 'number';
+    $config->product->all->dtable->fieldList['totalRequirements']['sortType']    = true;
+    $config->product->all->dtable->fieldList['totalRequirements']['group']       = 'requirementCount';
+    $config->product->all->dtable->fieldList['totalRequirements']['headerGroup'] = $lang->URCommon;
+
+    $config->product->all->dtable->fieldList['requirementCompleteRate']['name']        = 'requirementCompleteRate';
+    $config->product->all->dtable->fieldList['requirementCompleteRate']['title']       = $lang->product->completeRate;
+    $config->product->all->dtable->fieldList['requirementCompleteRate']['width']       = 64;
+    $config->product->all->dtable->fieldList['requirementCompleteRate']['type']        = 'progress';
+    $config->product->all->dtable->fieldList['requirementCompleteRate']['show']        = true;
+    $config->product->all->dtable->fieldList['requirementCompleteRate']['sortType']    = false;
+    $config->product->all->dtable->fieldList['requirementCompleteRate']['group']       = 'requirementCount';
+    $config->product->all->dtable->fieldList['requirementCompleteRate']['headerGroup'] = $lang->URCommon;
+}
+
+$config->product->all->dtable->fieldList['draftStories']['name']        = 'draftStories';
+$config->product->all->dtable->fieldList['draftStories']['title']       = $lang->product->draftStory;
+$config->product->all->dtable->fieldList['draftStories']['width']       = 64;
+$config->product->all->dtable->fieldList['draftStories']['type']        = 'number';
+$config->product->all->dtable->fieldList['draftStories']['show']        = true;
+$config->product->all->dtable->fieldList['draftStories']['sortType']    = true;
+$config->product->all->dtable->fieldList['draftStories']['group']       = 'storyCount';
+$config->product->all->dtable->fieldList['draftStories']['headerGroup'] = $lang->SRCommon;
+
+$config->product->all->dtable->fieldList['activeStories']['name']        = 'activeStories';
+$config->product->all->dtable->fieldList['activeStories']['title']       = $lang->product->activeStory;
+$config->product->all->dtable->fieldList['activeStories']['width']       = 64;
+$config->product->all->dtable->fieldList['activeStories']['type']        = 'number';
+$config->product->all->dtable->fieldList['activeStories']['show']        = true;
+$config->product->all->dtable->fieldList['activeStories']['sortType']    = true;
+$config->product->all->dtable->fieldList['activeStories']['group']       = 'storyCount';
+$config->product->all->dtable->fieldList['activeStories']['headerGroup'] = $lang->SRCommon;
+
+$config->product->all->dtable->fieldList['changingStories']['name']        = 'changingStories';
+$config->product->all->dtable->fieldList['changingStories']['title']       = $lang->product->changingStory;
+$config->product->all->dtable->fieldList['changingStories']['width']       = 64;
+$config->product->all->dtable->fieldList['changingStories']['type']        = 'number';
+$config->product->all->dtable->fieldList['changingStories']['show']        = true;
+$config->product->all->dtable->fieldList['changingStories']['sortType']    = true;
+$config->product->all->dtable->fieldList['changingStories']['group']       = 'storyCount';
+$config->product->all->dtable->fieldList['changingStories']['headerGroup'] = $lang->SRCommon;
+
+$config->product->all->dtable->fieldList['reviewingStories']['name']        = 'reviewingStories';
+$config->product->all->dtable->fieldList['reviewingStories']['title']       = $lang->product->reviewingStory;
+$config->product->all->dtable->fieldList['reviewingStories']['width']       = 64;
+$config->product->all->dtable->fieldList['reviewingStories']['type']        = 'number';
+$config->product->all->dtable->fieldList['reviewingStories']['show']        = true;
+$config->product->all->dtable->fieldList['reviewingStories']['sortType']    = true;
+$config->product->all->dtable->fieldList['reviewingStories']['group']       = 'storyCount';
+$config->product->all->dtable->fieldList['reviewingStories']['headerGroup'] = $lang->SRCommon;
+
+$config->product->all->dtable->fieldList['totalStories']['name']        = 'totalStories';
+$config->product->all->dtable->fieldList['totalStories']['title']       = $lang->product->totalStories;
+$config->product->all->dtable->fieldList['totalStories']['width']       = 92;
+$config->product->all->dtable->fieldList['totalStories']['minWidth']    = 100;
+$config->product->all->dtable->fieldList['totalStories']['type']        = 'number';
+$config->product->all->dtable->fieldList['totalStories']['sortType']    = true;
+$config->product->all->dtable->fieldList['totalStories']['group']       = 'storyCount';
+$config->product->all->dtable->fieldList['totalStories']['headerGroup'] = $lang->SRCommon;
+
+$config->product->all->dtable->fieldList['storyCompleteRate']['name']        = 'storyCompleteRate';
+$config->product->all->dtable->fieldList['storyCompleteRate']['title']       = $lang->product->completeRate;
+$config->product->all->dtable->fieldList['storyCompleteRate']['width']       = 64;
+$config->product->all->dtable->fieldList['storyCompleteRate']['type']        = 'progress';
+$config->product->all->dtable->fieldList['storyCompleteRate']['show']        = true;
+$config->product->all->dtable->fieldList['storyCompleteRate']['sortType']    = false;
+$config->product->all->dtable->fieldList['storyCompleteRate']['group']       = 'storyCount';
+$config->product->all->dtable->fieldList['storyCompleteRate']['headerGroup'] = $lang->SRCommon;
 
 $config->product->all->dtable->fieldList['plans']['name']     = 'plans';
 $config->product->all->dtable->fieldList['plans']['title']    = $lang->product->plan;
diff --git a/module/product/config/search.php b/module/product/config/search.php
index 251f231e97..37f4c60869 100644
--- a/module/product/config/search.php
+++ b/module/product/config/search.php
@@ -2,7 +2,7 @@
 global $app;
 $app->loadLang('story');
 $config->product->search['module']             = 'story';
-$config->product->search['fields']['title']    = $lang->story->title;
+$config->product->search['fields']['title']    = $lang->story->name;
 $config->product->search['fields']['id']       = $lang->story->id;
 $config->product->search['fields']['keywords'] = $lang->story->keywords;
 $config->product->search['fields']['status']   = $lang->story->status;
@@ -13,6 +13,7 @@ if($config->edition == 'ipd') $config->product->search['fields']['roadmap']  = $
 $config->product->search['fields']['stage']    = $lang->story->stage;
 $config->product->search['fields']['product']  = $lang->story->product;
 $config->product->search['fields']['branch']   = '';
+$config->product->search['fields']['grade']    = $lang->story->grade;
 $config->product->search['fields']['plan']     = $lang->story->plan;
 $config->product->search['fields']['estimate'] = $lang->story->estimate;
 
@@ -48,6 +49,7 @@ $config->product->search['params']['pri']            = array('operator' => '=',
 
 $config->product->search['params']['product']        = array('operator' => '=',       'control' => 'select', 'values' => '');
 $config->product->search['params']['branch']         = array('operator' => '=',       'control' => 'select', 'values' => '');
+$config->product->search['params']['grade']          = array('operator' => '=',       'control' => 'select', 'values' => '');
 $config->product->search['params']['module']         = array('operator' => 'belong',  'control' => 'select', 'values' => '');
 $config->product->search['params']['roadmap']        = array('operator' => '=',       'control' => 'select', 'values' => '');
 $config->product->search['params']['plan']           = array('operator' => '=',       'control' => 'select', 'values' => '');
diff --git a/module/product/control.php b/module/product/control.php
index 504ca9b26e..a0b0f663a9 100755
--- a/module/product/control.php
+++ b/module/product/control.php
@@ -129,6 +129,8 @@ class product extends control
         $browseType = strtolower($browseType);
 
         /* Pre process. */
+        $this->loadModel('requirement');
+        $this->loadModel('epic');
         $this->loadModel('tree');
         $isProjectStory = $this->app->rawModule == 'projectstory';
         $cookieOrderBy  = $this->cookie->productStoryOrder ? $this->cookie->productStoryOrder : 'id_desc';
@@ -161,7 +163,10 @@ class product extends control
         $stories  = $this->productZen->getStories($projectID, $productID, $branchID, $moduleID, $param, $storyType, $browseType, $orderBy, $pager);
 
         /* Process the sql, get the condition partition, save it to session. */
-        $this->loadModel('common')->saveQueryCondition($this->dao->get(), 'story', (strpos('bysearch,reviewbyme,bymodule', $browseType) === false && !$isProjectStory));
+        $this->loadModel('common')->saveQueryCondition($this->dao->get(), $storyType, (strpos('bysearch,reviewbyme,bymodule', $browseType) === false && !$isProjectStory));
+
+        /* Append children. */
+        if($storyType != 'story') $stories = $this->loadModel('story')->appendChildren($productID, $stories, $storyType);
 
         /* Save session. */
         $this->productZen->saveSession4Browse($product, $browseType);
@@ -786,31 +791,67 @@ class product extends control
      * @param  int    $productID
      * @param  string $branch
      * @param  int    $projectID
+     * @param  string $browseType
+     * @param  int    $param
+     * @param  string $storyType
+     * @param  string $orderBy
      * @param  int    $recTotal
      * @param  int    $recPerPage
      * @param  int    $pageID
      * @access public
      * @return void
      */
-    public function track(int $productID, string $branch = '', int $projectID = 0, int $recTotal = 0, int $recPerPage = 20, int $pageID = 1)
+    public function track(int $productID, string $branch = '', int $projectID = 0, string $browseType = 'allstory', int $param = 0, string $storyType = '', string $orderBy = 'id_desc', int $recTotal = 0, int $recPerPage = 20, int $pageID = 1)
     {
-        $branch = ($this->cookie->preBranch !== '' and $branch === '') ? $this->cookie->preBranch : $branch;
+        $browseType = strtolower($browseType);
+        $branch     = ($this->cookie->preBranch !== '' and $branch === '') ? $this->cookie->preBranch : $branch;
         if(is_bool($branch)) $branch = (string)(int)$branch;
 
         /* Set menu. The projectstory module does not execute. */
         $this->productZen->setTrackMenu($productID, $branch, $projectID);
 
+        /* Init storyType param. */
+        $storyTypeList = $this->productZen->getActiveStoryTypeForTrack($projectID, $productID);
+        if(empty($storyType)) $storyType = key($storyTypeList);
+
         /* Load pager. */
         $this->app->loadClass('pager', true);
-        $pager  = new pager($recTotal, $recPerPage, $pageID);
+        $pager   = new pager($recTotal, $recPerPage, $pageID);
+        $stories = $this->productZen->getStories($projectID, $productID, $branch, 0, (int)$param, ($browseType == 'bysearch' ? $storyType : 'all'), $browseType, $orderBy, $pager);
+        $tracks  = $this->loadModel('story')->getTracksByStories($stories, $storyType);
+
+        $customFields = $this->productZen->getCustomFieldsForTrack($storyType);
+        $mergeCells   = $this->story->getMergeTrackCells($tracks, $customFields['show']);
+        if(isset($tracks['cols']))
+        {
+            $showFields = $customFields['show'];
+            $cols       = array();
+            foreach($tracks['cols'] as $col)
+            {
+                if(in_array($col['name'], $showFields) || (isset($col['parentName']) && in_array($col['parentName'], $showFields))) $cols[] = $col;
+            }
+            $tracks['cols'] = $cols;
+        }
+
+        /* Build search form. */
+        $this->productZen->buildSearchFormForTrack($productID, $branch, $projectID, $browseType, $param, $storyType);
 
         $this->view->title           = $this->lang->story->track;
-        $this->view->tracks          = $this->loadModel('story')->getTracks($productID, $branch, $projectID, $pager);
+        $this->view->tracks          = $tracks;
+        $this->view->storyIdList     = array_keys($stories);
         $this->view->pager           = $pager;
         $this->view->productID       = $productID;
-        $this->view->projectProducts = $this->product->getProductPairsByProject($projectID);
         $this->view->branch          = $branch;
         $this->view->projectID       = $projectID;
+        $this->view->browseType      = $browseType;
+        $this->view->param           = $param;
+        $this->view->storyType       = $storyType;
+        $this->view->orderBy         = $orderBy;
+        $this->view->customFields    = $customFields;
+        $this->view->mergeCells      = $mergeCells;
+        $this->view->storyTypeList   = $storyTypeList;
+        $this->view->users           = $this->loadModel('user')->getPairs('noletter|nodeleted');
+        $this->view->projectProducts = $this->product->getProductPairsByProject($projectID);
 
         $this->display();
     }
@@ -827,6 +868,20 @@ class product extends control
         $this->loadModel('setting')->updateItem("{$this->app->user->account}.product.showAllProjects", $this->post->showAllProjects);
     }
 
+    /**
+     * 设置需求列表展示的需求等级。
+     * Ajax set show grades.
+     *
+     * @param  string $module
+     * @param  string $showGrades
+     * @access public
+     * @return void
+     */
+    public function ajaxSetShowGrades(string $module, string $showGrades)
+    {
+        if($showGrades) $this->loadModel('setting')->updateItem("{$this->app->user->account}.$module.showGrades", $showGrades);
+    }
+
     /**
      * 获取关联某个执行的产品下拉数据。
      * Ajax get products.
diff --git a/module/product/css/all.ui.css b/module/product/css/all.ui.css
index e69de29bb2..c64f4656de 100644
--- a/module/product/css/all.ui.css
+++ b/module/product/css/all.ui.css
@@ -0,0 +1 @@
+.dtable-header-group { border-left: 1px solid #efefef}
diff --git a/module/product/css/track.ui.css b/module/product/css/track.ui.css
index 8742dae229..1a70d147df 100644
--- a/module/product/css/track.ui.css
+++ b/module/product/css/track.ui.css
@@ -1,9 +1,33 @@
-#mainContent .table-empty-tip {padding: 180px 60px; text-align: center;}
-#mainContent .table {table-layout: fixed; background-color: #fff; cursor: pointer; border: 1px solid #ddd;}
-#mainContent .table td {white-space:nowrap; text-overflow:clip; overflow:hidden; position:unset !important; border-bottom-color:#ddd !important; border: 1px solid #ddd;}
-#mainContent .table .requirement{background: #fff}
-#mainContent .main-table tbody > tr:hover { background-color: #fff;}
-#mainContent .main-table tbody > tr:nth-child(odd):hover { background-color: #f5f5f5;}
-#mainContent .main-table thead > tr > th {overflow: hidden; border: 1px solid #ddd;}
-#mainContent .table-footer {background: #fff; padding: 5px; margin-bottom: 10px;}
-#mainContent td.empty-tip {padding: 80px;}
+.switchBtn {background: transparent; box-shadow: none;}
+.orderByIcon.with-popover-show{color: var(--color-primary-500);}
+
+.card {min-height:80px;}
+.card .card-heading{color:var(--color-gray-900)}
+.card .card-heading a{color:var(--color-gray-900)}
+.card .card-title{height:40px; width:100%;}
+.card .card-content{flex-direction: row;justify-content: space-between;color:var(--color-gray-800)}
+
+.kanban-item.parentTask { padding-bottom: 1px;}
+.kanban-item.childTask { padding-top:0px; padding-bottom: 1px;}
+.kanban-item.childTask .card {background-color: #f9f9f9;}
+
+.kanban-header-title .as-title{font-size:14px;}
+.kanban-header-lane-name, .kanban-lane-name {display:none;}
+.kanban-lane-cols, .kanban-header-cols, .kanban-header-sub-cols { gap: calc(var(--kanban-cols-gap) / 2); }
+.lane-col-shrink-with-above { position: relative; }
+.lane-col-shrink-with-above:before {
+    background-color: inherit;
+    left: 0;
+    position: absolute;
+    right: 0;
+    --tw-content: "";
+    content: var(--tw-content);
+    height: calc(var(--kanban-col-gap-top, var(--kanban-lanes-gap)) - 2px);
+    top: calc(2px - var(--kanban-col-gap-top, var(--kanban-lanes-gap)));
+}
+
+.kanban-header-col-wrapper{
+  --tw-bg-opacity-60: 0.6;
+  background-color: rgba(var(--color-gray-100-rgb), var(--tw-bg-opacity-60));
+}
+.kanban-lane-col{background-color: rgba(var(--color-gray-100-rgb), var(--tw-bg-opacity));}
diff --git a/module/product/js/browse.ui.js b/module/product/js/browse.ui.js
index fb421b679a..b071321671 100644
--- a/module/product/js/browse.ui.js
+++ b/module/product/js/browse.ui.js
@@ -18,6 +18,29 @@ $(document).off('click', '[data-formaction]').on('click', '[data-formaction]', f
         $.ajaxSubmit({"url": $this.data('formaction'), "data": postData});
     }
 });
+$(document).off('click', '.batchImportToLibBtn').on('click', '.batchImportToLibBtn', function()
+{
+    const dtable      = zui.DTable.query($('#stories'));
+    const checkedList = dtable.$.getChecks();
+    if(!checkedList.length) return;
+
+    $("[name='storyIdList'").val(checkedList.join(','));
+});
+
+$(document).off('click', '.batchChangeParentBtn').on('click', '.batchChangeParentBtn', function(e)
+{
+    const dtable      = zui.DTable.query($('#stories'));
+    const checkedList = dtable.$.getChecks();
+
+    $.cookie.set('checkedItem', checkedList.join(','), {expires:config.cookieLife, path:config.webRoot});
+});
+
+$(document).off('click', '.switchButton').on('click', '.switchButton', function()
+{
+    var storyViewType = $(this).attr('data-type');
+    $.cookie.set('storyViewType', storyViewType, {expires:config.cookieLife, path:config.webRoot});
+    loadCurrentPage();
+});
 
 $(document).off('click','#linkStoryByPlan button[type="submit"]').on('click', '#linkStoryByPlan button[type="submit"]', function()
 {
@@ -32,7 +55,6 @@ $(document).off('click','#linkStoryByPlan button[type="submit"]').on('click', '#
 
 $(document).off('click', '.batchUnlinkStory').on('click', '.batchUnlinkStory', function(e)
 {
-    const $this       = $(this);
     const dtable      = zui.DTable.query($('#stories'));
     const checkedList = dtable.$.getChecks();
     if(!checkedList.length) return;
@@ -72,13 +94,16 @@ window.renderCell = function(result, info)
         let html = '';
         if(story.parentName != undefined && story.parent > 0 && $.cookie.get('tab') == 'project' && projectHasProduct && vision != 'lite') html += story.parentName + ' / ';
         if(typeof modulePairs[story.rawModule] != 'undefined') html += "<span class='label gray-pale rounded-xl clip'>" + modulePairs[story.rawModule] + "</span> ";
-        if(story.parent > 0) html += "<span class='label gray-pale rounded-xl clip'>" + (storyType == 'requirement' ? 'SR' : childrenAB) + "</span> ";
+
+        let gradeLabel = '';
+        if(showGrade || story.grade >= 2) gradeLabel = gradeGroup[story.type][story.grade];
+        if(gradeLabel) html += "<span class='label gray-pale rounded-xl clip'>" + gradeLabel + "</span> ";
         if(story.color) result[0].props.style = 'color: ' + story.color;
         if(html) result.unshift({html});
     }
     if(info.col.name == 'status' && result)
     {
-        if(info.row.data.URChanged == '1') result[0] = {html: "<span class='status-changed'>" + URChanged + "</span>"};
+        result[0] = {html: `<span class='status-${info.row.data.rawStatus}'>` + info.row.data.status + "</span>"};
     }
     if(info.col.name == 'assignedTo' && info.row.data.status == 'closed')
     {
@@ -86,6 +111,10 @@ window.renderCell = function(result, info)
         delete result[0]['props']['href'];
         result[0]['props']['className'] += ' disabled';
     }
+    if(info.col.name == 'childItem')
+    {
+        result[1]['attrs']['title'] = info.row.data?.childItemTitle;
+    }
     return result;
 };
 
@@ -94,7 +123,6 @@ window.setStatistics = function(element, checkedIdList, pageSummary)
     if(checkedIdList == undefined || checkedIdList.length == 0) return {html: pageSummary};
 
     let total     = 0;
-    let SRTotal   = 0;
     let estimate  = 0;
     let rate      = '0%';
     let hasCase   = 0;
@@ -105,26 +133,39 @@ window.setStatistics = function(element, checkedIdList, pageSummary)
         if(checkedIdList.includes(row.id))
         {
             const story = row.data;
-            estimate   += parseFloat(story.estimate);
+            if(story.type != storyType && tab == 'product') return;
+            if(story?.needSummaryEstimate) estimate += parseFloat(story.estimate);
             if(story.caseCount > 0)
             {
                 hasCase += 1;
             }
-            else if(typeof story.isParent != 'undefined' && story.isParent)
+            else if(typeof story.isParent != 'undefined' && story.isParent == '1')
             {
                 rateCount -= 1;
             }
 
-            if(storyType == story.type) total += 1;
-            if(storyType == 'requirement' && story.type == 'story') SRTotal += 1;
+            total += 1;
         }
     })
 
     if(rateCount) rate = Math.round(hasCase / rateCount * 10000 / 100) + '' + '%';
 
-    return {html: checkedSummary.replace('%total%', total).replace('%estimate%', estimate).replace('%rate%', rate).replace('%SRTotal%', SRTotal)};
+    return {html: checkedSummary.replace('%total%', total).replace('%estimate%', estimate).replace('%rate%', rate)};
 };
 
+window.setShowGrades = function()
+{
+    const showGrades = $('[name^=showGrades]').zui('picker').$.state.value;
+    if(oldShowGrades == showGrades) return;
+
+    const module = tab == 'product' ? storyType : tab;
+    const link   = $.createLink('product', 'ajaxSetShowGrades', 'module=' + module + '&showGrades=' + showGrades);
+    $.get(link, function()
+    {
+        loadCurrentPage();
+    });
+}
+
 window.importToLib = function()
 {
     const dtable      = zui.DTable.query($('#stories'));
diff --git a/module/product/js/track.ui.js b/module/product/js/track.ui.js
new file mode 100644
index 0000000000..723cfd114f
--- /dev/null
+++ b/module/product/js/track.ui.js
@@ -0,0 +1,165 @@
+window.getItem = function(info)
+{
+    const col   = info.col;
+    const color = info.item.color ? " style='color:" + info.item.color + "'" : '';
+    const title = info.item.title;
+
+    let titleHtml = `<span${color}>${title}</span>`;
+    info.item.content = [];
+    if(col.indexOf('epic') != -1 || col.indexOf('requirement') != -1 || col.indexOf('story') != -1)
+    {
+        let storyPriList    = langStoryPriList[info.item.storyType];
+        let storyStatusList = langStoryStatusList[info.item.storyType];
+        let storyStageList  = langStoryStageList[info.item.storyType];
+
+        if(privs[info.item.storyType]) titleHtml = "<a href='" + $.createLink(info.item.storyType, 'view', `storyID=${info.item.id}`) + "' data-toggle='modal' data-size='lg'" + color + ">" + title + "</a>";
+        info.item.title      = {html: `<div class="line-clamp-2"><span class="align-sub pri-${info.item.pri}">${storyPriList[info.item.pri]}</span> ${titleHtml}</div>`}
+        info.item.titleAttrs = {'title' : title};
+
+        info.item.content.push({html: `<div class="status-${info.item.status}">${storyStatusList[info.item.status]}</div>`});
+        info.item.content.push({html: `<div style="color:var(--color-gray-600)">${storyStageList[info.item.stage]}</div>`})
+    }
+    else if(col == 'project' || col == 'execution')
+    {
+        let delayHtml = '';
+        if(info.item.delay > 0) delayHtml = `<span class='label danger-pale delayed nowrap'>${langProjectStatusList['delay']}</span>`;
+
+        titleHtml = `<span${color} class="title">${title}</span>`;
+        if(col == 'project'   && privs['project'])   titleHtml = "<a class='title' href='" + $.createLink('project', 'view', `projectID=${info.item.id}`) + "'>" + title + "</a>";
+        if(col == 'execution' && privs['execution']) titleHtml = "<a class='title' href='" + $.createLink('execution', 'task', `executionID=${info.item.id}`) + "'>" + title + "</a>";
+        info.item.title      = {html: `<div class="relative"><div class="line-clamp-2">${titleHtml}${delayHtml}</div></div>`}
+        info.item.titleAttrs = {'title' : title};
+
+        info.item.content.push({html: `<div class="status-${info.item.status}">${langProjectStatusList[info.item.status]}</div>`});
+        info.item.content.push({component: 'ProgressCircle', props: {percent: info.item.progress, size: 24}});
+    }
+    else if(col == 'task')
+    {
+        if(privs['task']) titleHtml = "<a href='" + $.createLink('task', 'view', `taskID=${info.item.id}`) + "' data-toggle='modal' data-size='lg'" + color + ">" + title + "</a>";
+        info.item.title = {html: `<div class='line-clamp-2'><span class="align-sub pri-${info.item.pri}">${langTaskPriList[info.item.pri]}</span> ${titleHtml}</div>`}
+        info.item.titleAttrs = {'title' : title};
+
+        if(info.item.parent == '-1') info.item.content.push({html: `<span class="label cursor-pointer primary rounded-xl is-collapsed" onclick="toggleChildren(this, ${info.item.id})">${langChildren} <span class="toggle-icon ml-1"></span></span>`});
+        info.item.content.push({html: `<div class="status-${info.item.status}">${langTaskStatusList[info.item.status]}</div>`});
+        if(info.item.assignedTo) info.item.content.push({html: "<i class='icon icon-hand-right'></i> " + (users[info.item.assignedTo] ? users[info.item.assignedTo] : info.item.assignedTo)});
+        info.item.content.push({component: 'ProgressCircle', props: {percent: info.item.progress, size: 24}});
+    }
+    else if(col == 'bug')
+    {
+        if(privs['bug']) titleHtml = "<a href='" + $.createLink('bug', 'view', `bugID=${info.item.id}`) + "' data-toggle='modal' data-size='lg'" + color + ">" + title + "</a>";
+        info.item.title      = {html: `<div class="line-clamp-2"><span class="align-sub pri-${info.item.pri}">${langBugPriList[info.item.pri]}</span> ${titleHtml}</div>`}
+        info.item.titleAttrs = {'title' : title};
+
+        severity     = info.item.severity;
+        severityHtml = `<div class="severity" data-severity="${severity}"></div>`;
+        if(!langBugSeverityList[severity] || langBugSeverityList[severity] != severity) severityHtml = `<div class="severity">${severity}</div>`;
+
+        info.item.content.push({html: severityHtml});
+        if(info.item.assignedTo) info.item.content.push({html: "<i class='icon icon-hand-right'></i> " + (users[info.item.assignedTo] ? users[info.item.assignedTo] : info.item.assignedTo)});
+    }
+    else if(col == 'case')
+    {
+        if(privs['case']) titleHtml = "<a href='" + $.createLink('testcase', 'view', `caseID=${info.item.id}`) + "' data-toggle='modal' data-size='lg'" + color + ">" + title + "</a>";
+        info.item.title      = {html: `<div class="line-clamp-2"><span class="align-sub pri-${info.item.pri}">${langCasePriList[info.item.pri]}</span> ${titleHtml}</div>`}
+        info.item.titleAttrs = {'title' : title};
+
+        info.item.content.push({html: "<div class='status-" + info.item.lastRunResult + "'>" + (langCaseResultList[info.item.lastRunResult] ? langCaseResultList[info.item.lastRunResult] : langUnexecuted) + "</div>"});
+        info.item.content.push({html: (users[info.item.lastRunner] ? users[info.item.lastRunner] : info.item.lastRunner)});
+    }
+    else if(col == 'design')
+    {
+        info.item.titleAttrs = {'class': 'line-clamp-3', 'title' : title};
+        if(privs['design'])
+        {
+            info.item.titleUrl = $.createLink('design', 'view', `id=${info.item.id}`);
+            info.item.titleAttrs = {'class': 'line-clamp-3', 'title' : title, 'data-toggle': 'modal', 'data-size': 'lg'};
+        }
+    }
+    else if(col == 'commit')
+    {
+        if(privs['commit']) info.item.titleUrl = $.createLink('repo', 'revision', `repoID=${info.item.repo}&objectID=0&revision=${info.item.revision}`);
+        info.item.titleAttrs = {'class': 'line-clamp-3', 'title' : title};
+    }
+}
+
+window.getLaneCol = function(lane, col)
+{
+    if(mergeCells[lane.name])
+    {
+        if(mergeCells[lane.name][col.name]) return {laneColClass: 'lane-col-join-with-above'};
+        return {laneColClass: 'lane-col-shrink-with-above'};
+    }
+}
+
+window.getCol = function(col)
+{
+    if(col.name == storyType) col.subtitle = {html: `<span class="icon ml-1 cursor-pointer orderByIcon icon-swap" title="${orderByTitle}"></span>`};
+}
+
+window.itemRender = function(info)
+{
+    const col = info.col;
+    if(col == 'task')
+    {
+        if(info.item.parent > '0') info.item.className.push('hidden childTask parent-' + info.item.parent);
+        if(info.item.parent == '-1') info.item.className.push('parentTask');
+    }
+    if(col == 'project' || col == 'execution')
+    {
+        $delayed = $('.kanban-lane-col[z-lane="' + info.lane + '"][z-col="' + col + '"] .kanban-item[z-key="' + info.item.id + '"] .delayed');
+        if($delayed.length > 0)
+        {
+            let $relative = $delayed.closest('.relative');
+            if($relative.find('.line-clamp-2').height() < $relative.find('.title').height()) $delayed.addClass('absolute bottom-0 right-0');
+        }
+    }
+
+    if(config.rawModule == 'projectstory' && (col.indexOf('epic') != -1 || col.indexOf('requirement') != -1 || col.indexOf('story') != -1))
+    {
+        if(!storyIdList.includes(parseInt(info.item.id))) info.item.className.push('hidden');
+    }
+}
+
+window.afterRender = function()
+{
+    $orderByIcon = $('.orderByIcon');
+    if($orderByIcon.length > 0 && !$orderByIcon.hasClass('dropdownInited'))
+    {
+        new zui.Dropdown($('.orderByIcon'), {menu: {items: orderByItems}});
+        $orderByIcon.addClass('dropdownInited');
+    }
+
+    $hasSubCols = $('.kanban-header-cols .kanban-header-col.has-subs');
+    if($hasSubCols.length > 0)
+    {
+        $hasSubCols.each(function()
+        {
+            $subCols = $(this).find(".kanban-header-sub-cols .kanban-header-col.is-sub");
+            if($subCols.length == 1)
+            {
+                style = $subCols.attr('style');
+                $subCols.parent().addClass('hidden');
+                $(this).removeClass('has-subs').attr('style', style);
+            }
+        });
+    }
+}
+
+window.toggleChildren = function(obj, parentID)
+{
+    if($(obj).hasClass('is-expanded'))
+    {
+        $(obj).removeClass('is-expanded').addClass('is-collapsed');
+        $('.parent-' + parentID).addClass('hidden')
+    }
+    else
+    {
+        $(obj).removeClass('is-collapsed').addClass('is-expanded');
+        $('.parent-' + parentID).removeClass('hidden')
+    }
+}
+
+window.changeProduct = function(e)
+{
+    if(config.rawModule == 'projectstory') loadPage($.createLink(config.rawModule, config.rawMethod, "projectID=" + projectID + "&productID=" + $(e.target).val()));
+}
diff --git a/module/product/lang/de.php b/module/product/lang/de.php
index c88acd0d5a..9a1027375b 100644
--- a/module/product/lang/de.php
+++ b/module/product/lang/de.php
@@ -12,6 +12,7 @@
 $lang->product->index            = $lang->productCommon . 'Home';
 $lang->product->browse           = 'Story Liste';
 $lang->product->requirement      = 'Requirement Liste';
+$lang->product->epic             = "{$lang->ERCommon} Liste";
 $lang->product->dynamic          = 'Verlauf';
 $lang->product->view             = 'Übersicht';
 $lang->product->edit             = "{$lang->productCommon} bearbeiten";
@@ -69,32 +70,39 @@ $lang->product->moreProduct = "More {$lang->productCommon}";
 $lang->product->projectInfo = "My {$lang->projectCommon}s that are linked to this {$lang->productCommon} are listed below.";
 $lang->product->progress    = "Progress";
 
-$lang->product->currentExecution      = "Aktuelle Execution";
-$lang->product->activeStories         = 'Aktivierte [S]';
-$lang->product->activeStoriesTitle    = 'Active Stories';
-$lang->product->changedStories        = 'Geänderte [S]';
-$lang->product->changedStoriesTitle   = 'Changed Stories';
-$lang->product->draftStories          = 'Entwurf [S]';
-$lang->product->draftStoriesTitle     = 'Draft Stories';
-$lang->product->reviewingStories      = "Reviewing [S]";
-$lang->product->reviewingStoriesTitle = "Reviewing Stories";
-$lang->product->closedStories         = 'Geschlossene [S]';
-$lang->product->closedStoriesTitle    = 'Closed Stories';
-$lang->product->storyCompleteRate     = "{$lang->SRCommon} Completion rate";
-$lang->product->activeRequirements    = "Active {$lang->URCommon}";
-$lang->product->changedRequirements   = "Changed {$lang->URCommon}";
-$lang->product->draftRequirements     = "Draft {$lang->URCommon}";
-$lang->product->closedRequirements    = "Closed {$lang->URCommon}";
-$lang->product->requireCompleteRate   = "{$lang->URCommon} Completion rate";
-$lang->product->unResolvedBugs        = 'Ungelöste [B]';
-$lang->product->unResolvedBugsTitle   = 'Active Bugs';
-$lang->product->assignToNullBugs      = 'Nicht zugewiesene [B]';
-$lang->product->assignToNullBugsTitle = 'Unassigned Bugs';
-$lang->product->closedBugs            = 'Closed Bug';
-$lang->product->bugFixedRate          = 'Repair Rate';
-$lang->product->unfoldClosed          = 'Unfold Closed';
-$lang->product->storyDeliveryRate     = "Story Delivery Rate";
-$lang->product->storyDeliveryRateTip  = "Story Delivery Rate = The released or done stories / (Total stories - Closed reason is not done）* 100%";
+$lang->product->currentExecution        = "Aktuelle Execution";
+$lang->product->activeStories           = 'Aktivierte [S]';
+$lang->product->activeStoriesTitle      = 'Active Stories';
+$lang->product->changedStories          = 'Geänderte [S]';
+$lang->product->changedStoriesTitle     = 'Changed Stories';
+$lang->product->draftStories            = 'Entwurf [S]';
+$lang->product->draftStoriesTitle       = 'Draft Stories';
+$lang->product->reviewingStories        = "Reviewing [S]";
+$lang->product->reviewingStoriesTitle   = "Reviewing Stories";
+$lang->product->closedStories           = 'Geschlossene [S]';
+$lang->product->closedStoriesTitle      = 'Closed Stories';
+$lang->product->storyCompleteRate       = "{$lang->SRCommon} Completion rate";
+$lang->product->activeRequirements      = "Active {$lang->URCommon}";
+$lang->product->changedRequirements     = "Changed {$lang->URCommon}";
+$lang->product->draftRequirements       = "Draft {$lang->URCommon}";
+$lang->product->reviewingRequirements   = "Reviewing {$lang->URCommon}";
+$lang->product->closedRequirements      = "Closed {$lang->URCommon}";
+$lang->product->requirementCompleteRate = "{$lang->URCommon} Completion rate";
+$lang->product->activeEpics             = "Active {$lang->ERCommon}";
+$lang->product->changedEpics            = "Changed {$lang->ERCommon}";
+$lang->product->draftEpics              = "Draft {$lang->ERCommon}";
+$lang->product->reviewingEpics          = "Reviewing {$lang->ERCommon}";
+$lang->product->closedEpics             = "Closed {$lang->ERCommon}";
+$lang->product->epicCompleteRate        = "{$lang->ERCommon} Completion rate";
+$lang->product->unResolvedBugs          = 'Ungelöste [B]';
+$lang->product->unResolvedBugsTitle     = 'Active Bugs';
+$lang->product->assignToNullBugs        = 'Nicht zugewiesene [B]';
+$lang->product->assignToNullBugsTitle   = 'Unassigned Bugs';
+$lang->product->closedBugs              = 'Closed Bug';
+$lang->product->bugFixedRate            = 'Repair Rate';
+$lang->product->unfoldClosed            = 'Unfold Closed';
+$lang->product->storyDeliveryRate       = "Story Delivery Rate";
+$lang->product->storyDeliveryRateTip    = "Story Delivery Rate = The released or done stories / (Total stories - Closed reason is not done）* 100%";
 
 $lang->product->confirmDelete        = " Möchten Sie {$lang->productCommon} löschen?";
 $lang->product->errorNoProduct       = "Kein {$lang->productCommon} erstellt!";
@@ -219,10 +227,14 @@ $lang->product->abbr->aclList['open']    = 'Default';
 $lang->product->aclTips['open']    = "Benutzer mit Rechten für {$lang->productCommon} können zugreifen.";
 $lang->product->aclTips['private'] = "{$lang->executionCommon} Nur Teammitglieder";
 
-$lang->product->storySummary       = " <strong>%s</strong> {$lang->SRCommon}, <strong>%s</strong> Stunde(n) geplant, Fallabdeckung ist <strong>%s</strong> auf dieser Seite.";
-$lang->product->checkedSRSummary   = " <strong>%total%</strong> {$lang->SRCommon}, <strong>%estimate%</strong> Stunde(n) geplant, Fallabdeckung ist <strong>%rate%</strong>.";
-$lang->product->requirementSummary = " <strong>%s</strong> {$lang->URCommon}, <strong>%s</strong> {$lang->SRCommon}, <strong>%s</strong> Stunde(n) geplant.";
-$lang->product->checkedURSummary   = " <strong>%total%</strong> {$lang->URCommon}, <strong>%SRTotal%</strong> {$lang->SRCommon}, <strong>%estimate%</strong> Stunde(n) geplant.";
+$lang->product->allSummary         = "Total <strong>%s</strong> requirements on this page. Estimates <strong>%s</strong> ({$lang->hourCommon}), and Case Coverage: <strong>%rate%</strong>.";
+$lang->product->checkedAllSummary  = "<strong>%total%</strong> requirements selected, Esitmates: <strong>%estimate%</strong> ({$lang->hourCommon}), and Case Coverage: <strong>%rate%</strong>.";
+$lang->product->storySummary       = "Total <strong>%s</strong> {$lang->SRCommon}, <strong>%s</strong> Stunde(n) geplant, Fallabdeckung ist <strong>%s</strong> auf dieser Seite.";
+$lang->product->checkedSRSummary   = "Total <strong>%total%</strong> {$lang->SRCommon}, <strong>%estimate%</strong> Stunde(n) geplant, Fallabdeckung ist <strong>%rate%</strong>.";
+$lang->product->requirementSummary = "Total <strong>%s</strong> {$lang->URCommon} on this page. Estimates: <strong>%s</strong> ({$lang->hourCommon}).";
+$lang->product->checkedURSummary   = "<strong>%total%</strong> {$lang->URCommon} selected, Esitmates: <strong>%estimate%</strong> ({$lang->hourCommon}).";
+$lang->product->epicSummary        = "Total <strong>%s</strong> {$lang->ERCommon} on this page. Estimates: <strong>%s</strong> ({$lang->hourCommon}).";
+$lang->product->checkedERSummary   = "<strong>%total%</strong> {$lang->ERCommon} selected, Esitmates: <strong>%estimate%</strong> ({$lang->hourCommon}).";
 $lang->product->noModule           = '<div>Kein Modul</div><div>Jetzt verwalten</div>';
 $lang->product->noProduct          = 'Kein Produkt. ';
 $lang->product->noMatched          = '"%s" kann nicht gefunden werden.' . $lang->productCommon;
diff --git a/module/product/lang/en.php b/module/product/lang/en.php
index 91c491e0f9..4a25fba0aa 100644
--- a/module/product/lang/en.php
+++ b/module/product/lang/en.php
@@ -12,6 +12,7 @@
 $lang->product->index            = $lang->productCommon . ' Home';
 $lang->product->browse           = 'Story List';
 $lang->product->requirement      = 'Requirement List';
+$lang->product->epic             = "{$lang->ERCommon} List";
 $lang->product->dynamic          = 'Dynamics';
 $lang->product->view             = "{$lang->productCommon} Detail";
 $lang->product->edit             = "Edit {$lang->productCommon}";
@@ -69,32 +70,39 @@ $lang->product->moreProduct = "More {$lang->productCommon}";
 $lang->product->projectInfo = "My {$lang->projectCommon}s that are linked to this {$lang->productCommon} are listed below.";
 $lang->product->progress    = "Progress";
 
-$lang->product->currentExecution      = "Current Execution";
-$lang->product->activeStories         = 'Active [S]';
-$lang->product->activeStoriesTitle    = 'Active Stories';
-$lang->product->changedStories        = 'Changed [S]';
-$lang->product->changedStoriesTitle   = 'Changed Stories';
-$lang->product->draftStories          = 'Draft [S]';
-$lang->product->draftStoriesTitle     = 'Draft Stories';
-$lang->product->reviewingStories      = "Reviewing [S]";
-$lang->product->reviewingStoriesTitle = "Reviewing Stories";
-$lang->product->closedStories         = 'Closed [S]';
-$lang->product->closedStoriesTitle    = 'Closed Stories';
-$lang->product->storyCompleteRate     = "{$lang->SRCommon} Completion rate";
-$lang->product->activeRequirements    = "Active {$lang->URCommon}";
-$lang->product->changedRequirements   = "Changed {$lang->URCommon}";
-$lang->product->draftRequirements     = "Draft {$lang->URCommon}";
-$lang->product->closedRequirements    = "Closed {$lang->URCommon}";
-$lang->product->requireCompleteRate   = "{$lang->URCommon} Completion rate";
-$lang->product->unResolvedBugs        = 'Active [B]';
-$lang->product->unResolvedBugsTitle   = 'Active Bugs';
-$lang->product->assignToNullBugs      = 'Unassigned [B]';
-$lang->product->assignToNullBugsTitle = 'Unassigned Bugs';
-$lang->product->closedBugs            = 'Closed Bug';
-$lang->product->bugFixedRate          = 'Repair Rate';
-$lang->product->unfoldClosed          = 'Unfold Closed';
-$lang->product->storyDeliveryRate     = "Story Delivery Rate";
-$lang->product->storyDeliveryRateTip  = "Story Delivery Rate = The released or done stories / (Total stories - Closed reason is not done）* 100%";
+$lang->product->currentExecution        = "Current Execution";
+$lang->product->activeStories           = 'Active [S]';
+$lang->product->activeStoriesTitle      = 'Active Stories';
+$lang->product->changedStories          = 'Changed [S]';
+$lang->product->changedStoriesTitle     = 'Changed Stories';
+$lang->product->draftStories            = 'Draft [S]';
+$lang->product->draftStoriesTitle       = 'Draft Stories';
+$lang->product->reviewingStories        = "Reviewing [S]";
+$lang->product->reviewingStoriesTitle   = "Reviewing Stories";
+$lang->product->closedStories           = 'Closed [S]';
+$lang->product->closedStoriesTitle      = 'Closed Stories';
+$lang->product->storyCompleteRate       = "{$lang->SRCommon} Completion rate";
+$lang->product->activeRequirements      = "Active {$lang->URCommon}";
+$lang->product->changedRequirements     = "Changed {$lang->URCommon}";
+$lang->product->draftRequirements       = "Draft {$lang->URCommon}";
+$lang->product->reviewingRequirements   = "Reviewing {$lang->URCommon}";
+$lang->product->closedRequirements      = "Closed {$lang->URCommon}";
+$lang->product->requirementCompleteRate = "{$lang->URCommon} Completion rate";
+$lang->product->activeEpics             = "Active {$lang->ERCommon}";
+$lang->product->changedEpics            = "Changed {$lang->ERCommon}";
+$lang->product->draftEpics              = "Draft {$lang->ERCommon}";
+$lang->product->reviewingEpics          = "Reviewing {$lang->ERCommon}";
+$lang->product->closedEpics             = "Closed {$lang->ERCommon}";
+$lang->product->epicCompleteRate        = "{$lang->ERCommon} Completion rate";
+$lang->product->unResolvedBugs          = 'Active [B]';
+$lang->product->unResolvedBugsTitle     = 'Active Bugs';
+$lang->product->assignToNullBugs        = 'Unassigned [B]';
+$lang->product->assignToNullBugsTitle   = 'Unassigned Bugs';
+$lang->product->closedBugs              = 'Closed Bug';
+$lang->product->bugFixedRate            = 'Repair Rate';
+$lang->product->unfoldClosed            = 'Unfold Closed';
+$lang->product->storyDeliveryRate       = "Story Delivery Rate";
+$lang->product->storyDeliveryRateTip    = "Story Delivery Rate = The released or done stories / (Total stories - Closed reason is not done）* 100%";
 
 $lang->product->confirmDelete        = " Do you want to delete the {$lang->productCommon}?";
 $lang->product->errorNoProduct       = "No {$lang->productCommon} is created yet!";
@@ -219,10 +227,14 @@ $lang->product->abbr->aclList['open']    = 'Default';
 $lang->product->aclTips['open']    = "Users with privileges to {$lang->productCommon} can access it.";
 $lang->product->aclTips['private'] = "{$lang->executionCommon} team members only";
 
+$lang->product->allSummary         = "Total <strong>%s</strong> requirements on this page. Estimates <strong>%s</strong> ({$lang->hourCommon}), and Case Coverage: <strong>%rate%</strong>.";
+$lang->product->checkedAllSummary  = "<strong>%total%</strong> requirements selected, Esitmates: <strong>%estimate%</strong> ({$lang->hourCommon}), and Case Coverage: <strong>%rate%</strong>.";
 $lang->product->storySummary       = "Total <strong>%s</strong> {$lang->SRCommon} on this page. Estimates: <strong>%s</strong> ({$lang->hourCommon}), and Case Coverage: <strong>%s</strong>.";
 $lang->product->checkedSRSummary   = "<strong>%total%</strong> {$lang->SRCommon} selected, Esitmates: <strong>%estimate%</strong> ({$lang->hourCommon}), and Case Coverage: <strong>%rate%</strong>.";
-$lang->product->requirementSummary = "Total <strong>%s</strong> {$lang->URCommon}, <strong>%s</strong> {$lang->SRCommon} on this page. Estimates: <strong>%s</strong> ({$lang->hourCommon}).";
-$lang->product->checkedURSummary   = "<strong>%total%</strong> {$lang->URCommon}, <strong>%SRTotal%</strong> {$lang->SRCommon} selected, Esitmates: <strong>%estimate%</strong> ({$lang->hourCommon}).";
+$lang->product->requirementSummary = "Total <strong>%s</strong> {$lang->URCommon} on this page. Estimates: <strong>%s</strong> ({$lang->hourCommon}).";
+$lang->product->checkedURSummary   = "<strong>%total%</strong> {$lang->URCommon} selected, Esitmates: <strong>%estimate%</strong> ({$lang->hourCommon}).";
+$lang->product->epicSummary        = "Total <strong>%s</strong> {$lang->ERCommon} on this page. Estimates: <strong>%s</strong> ({$lang->hourCommon}).";
+$lang->product->checkedERSummary   = "<strong>%total%</strong> {$lang->ERCommon} selected, Esitmates: <strong>%estimate%</strong> ({$lang->hourCommon}).";
 $lang->product->noModule           = '<div>You have no modules. </div><div>Manage Now</div>';
 $lang->product->noProduct          = "No {$lang->productCommon} yet. ";
 $lang->product->noMatched          = '"%s" cannot be found.' . $lang->productCommon;
diff --git a/module/product/lang/fr.php b/module/product/lang/fr.php
index 6854c73d4c..5a74831268 100644
--- a/module/product/lang/fr.php
+++ b/module/product/lang/fr.php
@@ -12,6 +12,7 @@
 $lang->product->index            = 'Accueil ' . $lang->productCommon;
 $lang->product->browse           = 'Liste Stories';
 $lang->product->requirement      = 'Liste Requirements';
+$lang->product->epic             = "{$lang->ERCommon} List";
 $lang->product->dynamic          = 'Historique';
 $lang->product->view             = "{$lang->productCommon} Détail";
 $lang->product->edit             = "Editer {$lang->productCommon}";
@@ -69,32 +70,39 @@ $lang->product->moreProduct = "More {$lang->productCommon}";
 $lang->product->projectInfo = "My {$lang->projectCommon}s that are linked to this {$lang->productCommon} are listed below.";
 $lang->product->progress    = "Progress";
 
-$lang->product->currentExecution      = "Current Execution";
-$lang->product->activeStories         = 'Actives [S]';
-$lang->product->activeStoriesTitle    = 'Stories Actives';
-$lang->product->changedStories        = 'Changées [S]';
-$lang->product->changedStoriesTitle   = 'Stories Modifiées';
-$lang->product->draftStories          = 'Brouillon [S]';
-$lang->product->draftStoriesTitle     = 'Stories en Analyse';
-$lang->product->reviewingStories      = "Reviewing [S]";
-$lang->product->reviewingStoriesTitle = "Reviewing Stories";
-$lang->product->closedStories         = 'Fermées [S]';
-$lang->product->closedStoriesTitle    = 'Stories Fermées';
-$lang->product->storyCompleteRate     = "{$lang->SRCommon} Completion rate";
-$lang->product->activeRequirements    = "Active {$lang->URCommon}";
-$lang->product->changedRequirements   = "Changed {$lang->URCommon}";
-$lang->product->draftRequirements     = "Draft {$lang->URCommon}";
-$lang->product->closedRequirements    = "Closed {$lang->URCommon}";
-$lang->product->requireCompleteRate   = "{$lang->URCommon} Completion rate";
-$lang->product->unResolvedBugs        = 'Ouverts [B]';
-$lang->product->unResolvedBugsTitle   = 'Bugs Ouverts';
-$lang->product->assignToNullBugs      = 'Orphelins [B]';
-$lang->product->assignToNullBugsTitle = 'Bugs non assignés';
-$lang->product->closedBugs            = 'Closed Bug';
-$lang->product->bugFixedRate          = 'Repair Rate';
-$lang->product->unfoldClosed          = 'Unfold Closed';
-$lang->product->storyDeliveryRate     = "Story Delivery Rate";
-$lang->product->storyDeliveryRateTip  = "Story Delivery Rate = The released or done stories / (Total stories - Closed reason is not done）* 100%";
+$lang->product->currentExecution        = "Current Execution";
+$lang->product->activeStories           = 'Actives [S]';
+$lang->product->activeStoriesTitle      = 'Stories Actives';
+$lang->product->changedStories          = 'Changées [S]';
+$lang->product->changedStoriesTitle     = 'Stories Modifiées';
+$lang->product->draftStories            = 'Brouillon [S]';
+$lang->product->draftStoriesTitle       = 'Stories en Analyse';
+$lang->product->reviewingStories        = "Reviewing [S]";
+$lang->product->reviewingStoriesTitle   = "Reviewing Stories";
+$lang->product->closedStories           = 'Fermées [S]';
+$lang->product->closedStoriesTitle      = 'Stories Fermées';
+$lang->product->storyCompleteRate       = "{$lang->SRCommon} Completion rate";
+$lang->product->activeRequirements      = "Active {$lang->URCommon}";
+$lang->product->changedRequirements     = "Changed {$lang->URCommon}";
+$lang->product->draftRequirements       = "Draft {$lang->URCommon}";
+$lang->product->reviewingRequirements   = "Reviewing {$lang->URCommon}";
+$lang->product->closedRequirements      = "Closed {$lang->URCommon}";
+$lang->product->requirementCompleteRate = "{$lang->URCommon} Completion rate";
+$lang->product->activeEpics             = "Active {$lang->ERCommon}";
+$lang->product->changedEpics            = "Changed {$lang->ERCommon}";
+$lang->product->draftEpics              = "Draft {$lang->ERCommon}";
+$lang->product->reviewingEpics          = "Reviewing {$lang->ERCommon}";
+$lang->product->closedEpics             = "Closed {$lang->ERCommon}";
+$lang->product->epicCompleteRate        = "{$lang->ERCommon} Completion rate";
+$lang->product->unResolvedBugs          = 'Ouverts [B]';
+$lang->product->unResolvedBugsTitle     = 'Bugs Ouverts';
+$lang->product->assignToNullBugs        = 'Orphelins [B]';
+$lang->product->assignToNullBugsTitle   = 'Bugs non assignés';
+$lang->product->closedBugs              = 'Closed Bug';
+$lang->product->bugFixedRate            = 'Repair Rate';
+$lang->product->unfoldClosed            = 'Unfold Closed';
+$lang->product->storyDeliveryRate       = "Story Delivery Rate";
+$lang->product->storyDeliveryRateTip    = "Story Delivery Rate = The released or done stories / (Total stories - Closed reason is not done）* 100%";
 
 $lang->product->confirmDelete        = "Voulez-vous vraiment supprimer le {$lang->productCommon} ?";
 $lang->product->errorNoProduct       = "Aucun {$lang->productCommon} n'est créé pour l'instant !";
@@ -219,10 +227,14 @@ $lang->product->abbr->aclList['open']    = 'Défaut';
 $lang->product->aclTips['open']    = "Les utilisateurs ayant des droits sur {$lang->productCommon} peuvent accéder à ce {$lang->productCommon}.";
 $lang->product->aclTips['private'] = "les membres de l'équipe et les membres de la Liste blanche peuvent y accéder.";
 
+$lang->product->allSummary         = "Total <strong>%s</strong> requirements on this page. Estimates <strong>%s</strong> ({$lang->hourCommon}), and Case Coverage: <strong>%rate%</strong>.";
+$lang->product->checkedAllSummary  = "<strong>%total%</strong> requirements selected, Esitmates: <strong>%estimate%</strong> ({$lang->hourCommon}), and Case Coverage: <strong>%rate%</strong>.";
 $lang->product->storySummary       = "Total de <strong>%s</strong> {$lang->SRCommon} sur cette page. Estimé: <strong>%s</strong> (h), et couverture de la recette: <strong>%s</strong>.";
 $lang->product->checkedSRSummary   = "<strong>%total%</strong> {$lang->SRCommon} sélectionnées, Estimé: <strong>%estimate%</strong>, et couverture de la recette: <strong>%rate%</strong>.";
-$lang->product->requirementSummary = "Total de <strong>%s</strong> {$lang->URCommon}, <strong>%s</strong> {$lang->SRCommon} sur cette page. Estimé: <strong>%s</strong> (h),.";
-$lang->product->checkedURSummary   = "<strong>%total%</strong> {$lang->URCommon}, <strong>%SRTotal%</strong> {$lang->SRCommon} sélectionnées, Estimé: <strong>%estimate%</strong>,.";
+$lang->product->requirementSummary = "Total <strong>%s</strong> {$lang->URCommon} on this page. Estimates: <strong>%s</strong> ({$lang->hourCommon}).";
+$lang->product->checkedURSummary   = "<strong>%total%</strong> {$lang->URCommon} selected, Esitmates: <strong>%estimate%</strong> ({$lang->hourCommon}).";
+$lang->product->epicSummary        = "Total <strong>%s</strong> {$lang->ERCommon} on this page. Estimates: <strong>%s</strong> ({$lang->hourCommon}).";
+$lang->product->checkedERSummary   = "<strong>%total%</strong> {$lang->ERCommon} selected, Esitmates: <strong>%estimate%</strong> ({$lang->hourCommon}).";
 $lang->product->noModule           = "<div>Vous n'avez aucun modules. </div><div>Gérer Maintenant</div>";
 $lang->product->noProduct          = "No {$lang->productCommon} à ce jour. ";
 $lang->product->noMatched          = '"%s" cannot be found.' . $lang->productCommon;
diff --git a/module/product/lang/zh-cn.php b/module/product/lang/zh-cn.php
index 7a2a0493c8..cacf7b9e2a 100644
--- a/module/product/lang/zh-cn.php
+++ b/module/product/lang/zh-cn.php
@@ -12,6 +12,7 @@
 $lang->product->index            = $lang->productCommon . '主页';
 $lang->product->browse           = "{$lang->SRCommon}列表";
 $lang->product->requirement      = "{$lang->URCommon}列表";
+$lang->product->epic             = "{$lang->ERCommon}列表";
 $lang->product->dynamic          = $lang->productCommon . '动态';
 $lang->product->view             = "{$lang->productCommon}概况";
 $lang->product->edit             = "编辑{$lang->productCommon}";
@@ -69,32 +70,39 @@ $lang->product->moreProduct = "更多{$lang->productCommon}";
 $lang->product->projectInfo = "所有与此{$lang->productCommon}关联的我参与的{$lang->projectCommon}";
 $lang->product->progress    = "{$lang->productCommon}完成度";
 
-$lang->product->currentExecution      = "当前执行";
-$lang->product->activeStories         = "激活{$lang->SRCommon}";
-$lang->product->activeStoriesTitle    = "激活{$lang->SRCommon}";
-$lang->product->changedStories        = "已变更{$lang->SRCommon}";
-$lang->product->changedStoriesTitle   = "已变更{$lang->SRCommon}";
-$lang->product->draftStories          = "草稿{$lang->SRCommon}";
-$lang->product->draftStoriesTitle     = "草稿{$lang->SRCommon}";
-$lang->product->reviewingStories      = "评审中{$lang->SRCommon}";
-$lang->product->reviewingStoriesTitle = "评审中{$lang->SRCommon}";
-$lang->product->closedStories         = "已关闭{$lang->SRCommon}";
-$lang->product->closedStoriesTitle    = "已关闭{$lang->SRCommon}";
-$lang->product->storyCompleteRate     = "{$lang->SRCommon}完成率";
-$lang->product->activeRequirements    = "激活{$lang->URCommon}";
-$lang->product->changedRequirements   = "已变更{$lang->URCommon}";
-$lang->product->draftRequirements     = "草稿{$lang->URCommon}";
-$lang->product->closedRequirements    = "已关闭{$lang->URCommon}";
-$lang->product->requireCompleteRate   = "{$lang->URCommon}完成率";
-$lang->product->unResolvedBugs        = '未解决Bug';
-$lang->product->unResolvedBugsTitle   = '未解决Bug';
-$lang->product->assignToNullBugs      = '未指派Bug';
-$lang->product->assignToNullBugsTitle = '未指派Bug';
-$lang->product->closedBugs            = '关闭Bug';
-$lang->product->bugFixedRate          = '修复率';
-$lang->product->unfoldClosed          = '展开已关闭';
-$lang->product->storyDeliveryRate     = "需求交付率";
-$lang->product->storyDeliveryRateTip  = "需求交付率 = 阶段为已发布或关闭原因是已完成需求数 /（研发需求总数 - 关闭原因不是已完成的需求数）* 100%";
+$lang->product->currentExecution        = "当前执行";
+$lang->product->activeStories           = "激活{$lang->SRCommon}";
+$lang->product->activeStoriesTitle      = "激活{$lang->SRCommon}";
+$lang->product->changedStories          = "已变更{$lang->SRCommon}";
+$lang->product->changedStoriesTitle     = "已变更{$lang->SRCommon}";
+$lang->product->draftStories            = "草稿{$lang->SRCommon}";
+$lang->product->draftStoriesTitle       = "草稿{$lang->SRCommon}";
+$lang->product->reviewingStories        = "评审中{$lang->SRCommon}";
+$lang->product->reviewingStoriesTitle   = "评审中{$lang->SRCommon}";
+$lang->product->closedStories           = "已关闭{$lang->SRCommon}";
+$lang->product->closedStoriesTitle      = "已关闭{$lang->SRCommon}";
+$lang->product->storyCompleteRate       = "{$lang->SRCommon}完成率";
+$lang->product->activeRequirements      = "激活{$lang->URCommon}";
+$lang->product->changedRequirements     = "已变更{$lang->URCommon}";
+$lang->product->draftRequirements       = "草稿{$lang->URCommon}";
+$lang->product->reviewingRequirements   = "评审中{$lang->URCommon}";
+$lang->product->closedRequirements      = "已关闭{$lang->URCommon}";
+$lang->product->requirementCompleteRate = "{$lang->URCommon}完成率";
+$lang->product->activeEpics             = "激活{$lang->ERCommon}";
+$lang->product->changedEpics            = "已变更{$lang->ERCommon}";
+$lang->product->draftEpics              = "草稿{$lang->ERCommon}";
+$lang->product->reviewingEpics          = "评审中{$lang->ERCommon}";
+$lang->product->closedEpics             = "已关闭{$lang->ERCommon}";
+$lang->product->epicCompleteRate        = "{$lang->ERCommon}完成率";
+$lang->product->unResolvedBugs          = '未解决Bug';
+$lang->product->unResolvedBugsTitle     = '未解决Bug';
+$lang->product->assignToNullBugs        = '未指派Bug';
+$lang->product->assignToNullBugsTitle   = '未指派Bug';
+$lang->product->closedBugs              = '关闭Bug';
+$lang->product->bugFixedRate            = '修复率';
+$lang->product->unfoldClosed            = '展开已关闭';
+$lang->product->storyDeliveryRate       = "需求交付率";
+$lang->product->storyDeliveryRateTip    = "需求交付率 = 阶段为已发布或关闭原因是已完成需求数 /（研发需求总数 - 关闭原因不是已完成的需求数）* 100%";
 
 $lang->product->confirmDelete        = " 您确定删除该{$lang->productCommon}吗？";
 $lang->product->errorNoProduct       = "还没有创建{$lang->productCommon}！";
@@ -219,10 +227,14 @@ $lang->product->abbr->aclList['open']    = '公开';
 $lang->product->aclTips['open']    = "有{$lang->productCommon}视图权限，即可访问";
 $lang->product->aclTips['private'] = "{$lang->productCommon}相关负责人、所属项目集的干系人、相关联{$lang->projectCommon}的团队成员和干系人可访问";
 
+$lang->product->allSummary         = "本页共 <strong>%s</strong> 个需求，预计 <strong>%s</strong> 个{$lang->hourCommon}，用例覆盖率 <strong>%s</strong>。";
+$lang->product->checkedAllSummary  = "选中 <strong>%total%</strong> 个需求，预计 <strong>%estimate%</strong> 个{$lang->hourCommon}，用例覆盖率 <strong>%rate%</strong>。";
 $lang->product->storySummary       = "本页共 <strong>%s</strong> 个{$lang->SRCommon}，预计 <strong>%s</strong> 个{$lang->hourCommon}，用例覆盖率 <strong>%s</strong>。";
 $lang->product->checkedSRSummary   = "选中 <strong>%total%</strong> 个{$lang->SRCommon}，预计 <strong>%estimate%</strong> 个{$lang->hourCommon}，用例覆盖率 <strong>%rate%</strong>。";
-$lang->product->requirementSummary = "本页共 <strong>%s</strong> 个{$lang->URCommon}，<strong>%s</strong>个{$lang->SRCommon}，预计 <strong>%s</strong> 个{$lang->hourCommon}。";
-$lang->product->checkedURSummary   = "选中 <strong>%total%</strong> 个{$lang->URCommon}，<strong>%SRTotal%</strong>个{$lang->SRCommon}，预计 <strong>%estimate%</strong> 个{$lang->hourCommon}。";
+$lang->product->requirementSummary = "本页共 <strong>%s</strong> 个{$lang->URCommon}，预计 <strong>%s</strong> 个{$lang->hourCommon}。";
+$lang->product->checkedURSummary   = "选中 <strong>%total%</strong> 个{$lang->URCommon}，预计 <strong>%estimate%</strong> 个{$lang->hourCommon}。";
+$lang->product->epicSummary        = "本页共 <strong>%s</strong> 个{$lang->ERCommon}，预计 <strong>%s</strong> 个{$lang->hourCommon}。";
+$lang->product->checkedERSummary   = "选中 <strong>%total%</strong> 个{$lang->ERCommon}，预计 <strong>%estimate%</strong> 个{$lang->hourCommon}。";
 $lang->product->noModule           = "<div>您现在还没有模块信息</div><div>请维护模块</div>";
 $lang->product->noProduct          = "暂时没有{$lang->productCommon}。";
 $lang->product->noMatched          = '找不到包含"%s"的' . $lang->productCommon;
diff --git a/module/product/model.php b/module/product/model.php
index f08a26cea9..c56238eceb 100755
--- a/module/product/model.php
+++ b/module/product/model.php
@@ -715,28 +715,41 @@ class productModel extends model
 
         /* Get module data. */
         $projectID = ($this->app->tab == 'project' && empty($projectID)) ? $this->session->project : $projectID;
-        $searchConfig['params']['module']['values'] = $this->productTao->getModulesForSearchForm($productID, $products, $branch, $projectID);
+        $searchConfig['params']['module']['values'] = $this->productTao->getModulesForSearchForm($productID, $products, $branch, (int)$projectID);
 
-        if($storyType == 'requirement')
+        $gradePairs = $this->loadModel('story')->getGradePairs($storyType, 'all');
+
+        if($projectID || $storyType == 'all')
         {
-            /* Change for requirement story title. */
-            $this->lang->story->title  = str_replace($this->lang->SRCommon, $this->lang->URCommon, $this->lang->story->title);
-            $this->lang->story->create = str_replace($this->lang->SRCommon, $this->lang->URCommon, $this->lang->story->create);
+            $project    = $this->loadModel('project')->fetchById($projectID);
+            $gradePairs = array();
+            $gradeList  = $this->loadModel('story')->getGradeList('');
+            $storyTypes = isset($project->storyType) ? $project->storyType : 'epic,story,requirement';
+            foreach($gradeList as $grade)
+            {
+                if(strpos($storyTypes, $grade->type) === false) continue;
+                $key = (string)$grade->type . (string)$grade->grade;
+                $gradePairs[$key] = $grade->name;
+            }
+            asort($gradePairs);
+            $this->lang->story->title = $this->lang->story->name;
+        }
+        elseif($storyType != 'story')
+        {
+            $replacement = $storyType == 'requirement' ? $this->lang->URCommon : $this->lang->ERCommon;
+
+            $this->lang->story->title        = str_replace($this->lang->SRCommon, $replacement, $this->lang->story->title);
+            $this->lang->story->create       = str_replace($this->lang->SRCommon, $replacement, $this->lang->story->create);
             $searchConfig['fields']['title'] = $this->lang->story->title;
-            unset($searchConfig['fields']['plan']);
-            unset($searchConfig['params']['plan']);
-            unset($searchConfig['fields']['stage']);
-            unset($searchConfig['params']['stage']);
+        }
 
-            if($this->config->edition == 'ipd') $searchConfig['params']['roadmap']['values'] = $this->loadModel('roadmap')->getPairs($productID);
-        }
-        else
-        {
-            /* Get product plan data. */
-            $productIdList = ($this->app->tab == 'project' && empty($productID)) ? array_keys($products) : array($productID);
-            $branchParam   = ($this->app->tab == 'project' && empty($productID)) ? '' : $branch;
-            $searchConfig['params']['plan']['values'] = $this->loadModel('productplan')->getPairs($productIdList, (empty($branchParam) || $branchParam == 'all') ? '' : $branchParam);
-        }
+        $searchConfig['params']['grade']['values'] = $gradePairs;
+        if($this->config->edition == 'ipd') $searchConfig['params']['roadmap']['values'] = $this->loadModel('roadmap')->getPairs($productID);
+
+        /* Get product plan data. */
+        $productIdList = ($this->app->tab == 'project' && empty($productID)) ? array_keys($products) : array($productID);
+        $branchParam   = ($this->app->tab == 'project' && empty($productID)) ? '' : $branch;
+        $searchConfig['params']['plan']['values'] = $this->loadModel('productplan')->getPairs($productIdList, (empty($branchParam) || $branchParam == 'all') ? '' : $branchParam);
 
         /* Get branch data. */
         if($productID)
@@ -1187,44 +1200,48 @@ class productModel extends model
         $storyIdList   = array();
 
         $rateCount = 0;
-        $allCount  = 0;
+        $total     = 0;
         $SRTotal   = 0;
+        $URTotal   = 0;
+        $ERTotal   = 0;
+
+        $idList = array();
+        foreach($stories as $story) $idList[] = $story->id;
+        $childTypes = $this->dao->select('parent, type')->from(TABLE_STORY)->where('parent')->in($idList)->andWhere('deleted')->eq('0')->fetchGroup('parent', 'type');
         foreach($stories as $story)
         {
-            if($storyType == 'requirement' && $story->type == 'story') $SRTotal += 1;
-            if(!empty($story->type) && $story->type != $storyType) continue;
+            $total ++;
+            if($story->type == 'story')       $SRTotal += 1;
+            if($story->type == 'requirement') $URTotal += 1;
+            if($story->type == 'epic')        $ERTotal += 1;
 
-            $totalEstimate += $story->estimate;
-            $allCount ++;
+            /* 产品软需列表仅统计叶子需求的规模。
+               如果是产品用需、业需列表，则追加统计子需求类型和父需求不一样的父需求规模。
+               如果是项目需求列表，则只统计叶子需求的规模。
+            */
+            $isLeafStory = !isset($childTypes[$story->id]) || (isset($childTypes[$story->id]) && !isset($childTypes[$story->id][$story->type]));
+            if(($storyType == $story->type && $isLeafStory) || ($storyType == 'all' && $story->isParent == '0'))
+            {
+                $totalEstimate += $story->estimate;
+                $story->needSummaryEstimate = true;
+            }
 
-            if($story->parent >= 0 && ($story->status != 'closed' || in_array($story->closedReason, array('done', 'postponed'))))
+            if($story->type != 'story') continue;
+            if($story->isParent == '0' && ($story->status != 'closed' || in_array($story->closedReason, array('done', 'postponed'))))
             {
                 $storyIdList[] = $story->id;
                 $rateCount ++;
             }
-
-            /* When the status is not closed or closedReason is done or postponed then add cases rate..*/
-            if(empty($story->children)) continue;
-            foreach($story->children as $child)
-            {
-                if($storyType == 'requirement' && $child->type == 'story') $SRTotal += 1;
-                if($child->type != $storyType) continue;
-
-                $allCount ++;
-                if($child->status != 'closed' || in_array($child->closedReason, array('done', 'postponed')))
-                {
-                    $storyIdList[] = $child->id;
-                    $rateCount ++;
-                }
-            }
         }
 
         $casesCount = count($this->productTao->filterNoCasesStory($storyIdList));
         $rate       = empty($stories) || $rateCount == 0 ? 0 : round($casesCount / $rateCount, 4);
 
-        if($storyType == 'story')         return sprintf($this->lang->product->storySummary, $allCount, $totalEstimate, $rate * 100 . "%");
-        if($this->config->vision == 'or') return sprintf($this->lang->product->requirementSummary, $allCount, $totalEstimate);
-        return sprintf($this->lang->product->requirementSummary, $allCount, $SRTotal, $totalEstimate);
+        if($storyType == 'all')         return sprintf($this->lang->product->allSummary, $total, $totalEstimate, $rate * 100 . "%");
+        if($storyType == 'epic')        return sprintf($this->lang->product->epicSummary, $ERTotal, $totalEstimate);
+        if($storyType == 'requirement') return sprintf($this->lang->product->requirementSummary, $URTotal, $totalEstimate);
+
+        return sprintf($this->lang->product->storySummary, $SRTotal, $totalEstimate, $rate * 100 . "%");
     }
 
     /**
@@ -1477,9 +1494,11 @@ class productModel extends model
 
         if($this->config->vision == 'or') return $product;
 
-        $product->testCaseCoverage   = $product->coverage;
-        $product->storyCompleteRate  = $product->totalStories == 0 ? 0 : round($product->finishedStories / $product->totalStories, 3) * 100;
-        $product->bugFixedRate       = ($product->unresolvedBugs + $product->fixedBugs) == 0 ? 0 : round($product->fixedBugs / ($product->unresolvedBugs + $product->fixedBugs), 3) * 100;
+        $product->testCaseCoverage        = $product->coverage;
+        $product->epicCompleteRate        = $product->totalEpics == 0 ? 0 : round($product->finishedEpics / $product->totalEpics, 3) * 100;
+        $product->requirementCompleteRate = $product->totalRequirements == 0 ? 0 : round($product->finishedRequirements / $product->totalRequirements, 3) * 100;
+        $product->storyCompleteRate       = $product->totalStories == 0 ? 0 : round($product->finishedStories / $product->totalStories, 3) * 100;
+        $product->bugFixedRate            = ($product->unresolvedBugs + $product->fixedBugs) == 0 ? 0 : round($product->fixedBugs / ($product->unresolvedBugs + $product->fixedBugs), 3) * 100;
 
         return $product;
     }
diff --git a/module/product/tao.php b/module/product/tao.php
index fa35518b06..9e05b950e4 100644
--- a/module/product/tao.php
+++ b/module/product/tao.php
@@ -856,13 +856,29 @@ class productTao extends productModel
         {
             $product = new stdclass();
 
-            $product->draftStories     = isset($productStories[$productID]) ? $productStories[$productID]['draft']     : 0;
-            $product->activeStories    = isset($productStories[$productID]) ? $productStories[$productID]['active']    : 0;
-            $product->changingStories  = isset($productStories[$productID]) ? $productStories[$productID]['changing']  : 0;
-            $product->reviewingStories = isset($productStories[$productID]) ? $productStories[$productID]['reviewing'] : 0;
-            $product->closedStories    = isset($productStories[$productID]) ? $productStories[$productID]['closed']    : 0;
-            $product->finishedStories  = isset($productStories[$productID]) ? $productStories[$productID]['finished']  : 0;
-            $product->totalStories     = isset($productStories[$productID]) ? $productStories[$productID]['total']     : 0;
+            $product->draftEpics       = isset($productStories[$productID]['epic']) ? $productStories[$productID]['epic']['draft']     : 0;
+            $product->activeEpics      = isset($productStories[$productID]['epic']) ? $productStories[$productID]['epic']['active']    : 0;
+            $product->changingEpics    = isset($productStories[$productID]['epic']) ? $productStories[$productID]['epic']['changing']  : 0;
+            $product->reviewingEpics   = isset($productStories[$productID]['epic']) ? $productStories[$productID]['epic']['reviewing'] : 0;
+            $product->closedEpics      = isset($productStories[$productID]['epic']) ? $productStories[$productID]['epic']['closed']    : 0;
+            $product->finishedEpics    = isset($productStories[$productID]['epic']) ? $productStories[$productID]['epic']['finished']  : 0;
+            $product->totalEpics       = isset($productStories[$productID]['epic']) ? $productStories[$productID]['epic']['total']     : 0;
+
+            $product->draftRequirements     = isset($productStories[$productID]['requirement']) ? $productStories[$productID]['requirement']['draft']     : 0;
+            $product->activeRequirements    = isset($productStories[$productID]['requirement']) ? $productStories[$productID]['requirement']['active']    : 0;
+            $product->changingRequirements  = isset($productStories[$productID]['requirement']) ? $productStories[$productID]['requirement']['changing']  : 0;
+            $product->reviewingRequirements = isset($productStories[$productID]['requirement']) ? $productStories[$productID]['requirement']['reviewing'] : 0;
+            $product->closedRequirements    = isset($productStories[$productID]['requirement']) ? $productStories[$productID]['requirement']['closed']    : 0;
+            $product->finishedRequirements  = isset($productStories[$productID]['requirement']) ? $productStories[$productID]['requirement']['finished']  : 0;
+            $product->totalRequirements     = isset($productStories[$productID]['requirement']) ? $productStories[$productID]['requirement']['total']     : 0;
+
+            $product->draftStories     = isset($productStories[$productID]['story']) ? $productStories[$productID]['story']['draft']     : 0;
+            $product->activeStories    = isset($productStories[$productID]['story']) ? $productStories[$productID]['story']['active']    : 0;
+            $product->changingStories  = isset($productStories[$productID]['story']) ? $productStories[$productID]['story']['changing']  : 0;
+            $product->reviewingStories = isset($productStories[$productID]['story']) ? $productStories[$productID]['story']['reviewing'] : 0;
+            $product->closedStories    = isset($productStories[$productID]['story']) ? $productStories[$productID]['story']['closed']    : 0;
+            $product->finishedStories  = isset($productStories[$productID]['story']) ? $productStories[$productID]['story']['finished']  : 0;
+            $product->totalStories     = isset($productStories[$productID]['story']) ? $productStories[$productID]['story']['total']     : 0;
 
             $product->unresolvedBugs = isset($productBugs[$productID]) ? $productBugs[$productID]['unresolved'] : 0;
             $product->closedBugs     = isset($productBugs[$productID]) ? $productBugs[$productID]['closed']     : 0;
@@ -888,26 +904,25 @@ class productTao extends productModel
      */
     protected function getStoryStats(array $productIdList): array
     {
-        $stories = $this->dao->select('product, status, `closedReason`, count(id) AS c')
+        $stories = $this->dao->select('product, status, `closedReason`, count(id) AS c, type')
             ->from(TABLE_STORY)
             ->where('deleted')->eq(0)
             ->beginIF(!empty($productIdList))->andWhere('product')->in($productIdList)->fi()
-            ->andWhere('type')->eq('story')
-            ->groupBy('product, status, `closedReason`')
+            ->groupBy('product, status, `closedReason`, type')
             ->fetchAll();
 
         $productStories = array();
         foreach($stories as $story)
         {
-            if(!isset($productStories[$story->product])) $productStories[$story->product] = array('draft' => 0, 'active' => 0, 'changing' => 0, 'reviewing' => 0, 'finished' => 0, 'closed' => 0, 'total' => 0);
-            if($story->status == 'draft')     $productStories[$story->product]['draft']     += $story->c;
-            if($story->status == 'active')    $productStories[$story->product]['active']    += $story->c;
-            if($story->status == 'changing')  $productStories[$story->product]['changing']  += $story->c;
-            if($story->status == 'reviewing') $productStories[$story->product]['reviewing'] += $story->c;
-            if($story->status == 'closed')    $productStories[$story->product]['closed']    += $story->c;
-            $productStories[$story->product]['total'] += $story->c;
+            if(!isset($productStories[$story->product][$story->type])) $productStories[$story->product][$story->type] = array('draft' => 0, 'active' => 0, 'changing' => 0, 'reviewing' => 0, 'finished' => 0, 'closed' => 0, 'total' => 0);
+            if($story->status == 'draft')     $productStories[$story->product][$story->type]['draft']     += $story->c;
+            if($story->status == 'active')    $productStories[$story->product][$story->type]['active']    += $story->c;
+            if($story->status == 'changing')  $productStories[$story->product][$story->type]['changing']  += $story->c;
+            if($story->status == 'reviewing') $productStories[$story->product][$story->type]['reviewing'] += $story->c;
+            if($story->status == 'closed')    $productStories[$story->product][$story->type]['closed']    += $story->c;
+            $productStories[$story->product][$story->type]['total'] += $story->c;
 
-            if($story->status == 'closed' && $story->closedReason == 'done') $productStories[$story->product]['finished'] += $story->c;
+            if($story->status == 'closed' && $story->closedReason == 'done') $productStories[$story->product][$story->type]['finished'] += $story->c;
         }
 
         return $productStories;
diff --git a/module/product/ui/all.html.php b/module/product/ui/all.html.php
index a78b529805..6c4df709f6 100644
--- a/module/product/ui/all.html.php
+++ b/module/product/ui/all.html.php
@@ -140,6 +140,7 @@ dtable
     set::checkable($canBatchEdit),
     set::sortLink(createLink('product', 'all', "browseType={$browseType}&orderBy={name}_{sortType}&recTotal={$recTotal}&recPerPage={$recPerPage}")),
     set::orderBy($orderBy),
+    set::plugins(array('header-group')),
     $canBatchEdit ? set::footToolbar
     (
         item
diff --git a/module/product/ui/browse.html.php b/module/product/ui/browse.html.php
index 2d7718d8eb..d25e458060 100644
--- a/module/product/ui/browse.html.php
+++ b/module/product/ui/browse.html.php
@@ -15,8 +15,15 @@ namespace zin;
 data('storyType', $storyType);
 data('activeMenuID', $storyType);
 jsVar('URChanged', $this->lang->story->URChanged);
+jsVar('gradeGroup', $gradeGroup);
+jsVar('showGrade', $showGrade);
+jsVar('oldShowGrades', $showGrades);
+jsVar('storyType', $storyType);
+jsVar('tab', $app->tab);
 jsVar('vision', $config->vision);
+jsVar('window.globalSearchType', $storyType);
 
+$viewType          = $this->cookie->storyViewType ? $this->cookie->storyViewType : 'tree';
 $storyCommon       = $storyType == 'requirement' ? $lang->URCommon : $lang->SRCommon;
 $isProjectStory    = $this->app->rawModule == 'projectstory';
 $projectHasProduct = $isProjectStory && !empty($project->hasProduct);
@@ -54,13 +61,13 @@ $fnGenerateSideBar = function() use ($moduleTree, $moduleID, $productID, $branch
 };
 
 /* Build create story button. */
-$fnBuildCreateStoryButton = function() use ($lang, $product, $isProjectStory, $storyType, $productID, $branch, $moduleID, $projectID, $projectProducts)
+$fnBuildCreateStoryButton = function() use ($lang, $product, $isProjectStory, $storyType, $productID, $branch, $moduleID, $projectID, $project, $projectProducts)
 {
     if(!common::canModify('product', $product)) return null;
 
     global $app;
-    $createLink      = createLink('story', 'create', "product=" . (empty($productID) ? current(array_keys($projectProducts)) : $productID) . "&branch=$branch&moduleID=$moduleID&storyID=0&projectID=$projectID&bugID=0&planID=0&todoID=0&extra=&storyType=$storyType") . ($isProjectStory ? '#app=project' : '');
-    $batchCreateLink = createLink('story', 'batchCreate', "productID=$productID&branch=$branch&moduleID=$moduleID&storyID=0&project=$projectID&plan=0&storyType=$storyType"). ($isProjectStory ? '#app=project' : '');
+    $createLink      = createLink($storyType, 'create', "product=" . (empty($productID) ? current(array_keys($projectProducts)) : $productID) . "&branch=$branch&moduleID=$moduleID&storyID=0&projectID=$projectID&bugID=0&planID=0&todoID=0&extra=&storyType=$storyType") . ($isProjectStory ? '#app=project' : '');
+    $batchCreateLink = createLink($storyType, 'batchCreate', "productID=$productID&branch=$branch&moduleID=$moduleID&storyID=0&project=$projectID&plan=0&storyType=$storyType"). ($isProjectStory ? '#app=project' : '');
 
     $createBtnLink  = '';
     $createBtnTitle = '';
@@ -91,12 +98,32 @@ $fnBuildCreateStoryButton = function() use ($lang, $product, $isProjectStory, $s
             $link = $this->createLink('tutorial', 'wizard', "module=story&method=create&params=$wizardParams");
             $items[] = array('text' => $lang->story->createCommon, 'url' => $link);
         }
-        else
+        elseif(!$isProjectStory)
         {
             $items[] = array('text' => $lang->story->create, 'url' => $createLink);
         }
 
-        $items[] = array('text' => $lang->story->batchCreate, 'url' => $batchCreateLink);
+        if($isProjectStory)
+        {
+            $batchItems[] = array('text' => $lang->SRCommon, 'url' => $batchCreateLink);
+            if(str_contains($project->storyType, 'requirement'))
+            {
+                if(common::hasPriv('requirement', 'create'))      $items[]      = array('text' => $lang->requirement->create, 'url' => createLink('requirement', 'create', "product=$productID&branch=$branch&moduleID=$moduleID&requirementID=0&projectID=$projectID") . '#app=project');
+                if(common::hasPriv('requirement', 'batchCreate')) $batchItems[] = array('text' => $lang->URCommon, 'url' => createLink('requirement', 'batchCreate', "productID=$productID&branch=$branch&moduleID=$moduleID&requirementID=0&project=$projectID") . '#app=project');
+            }
+
+            if(str_contains($project->storyType, 'epic'))
+            {
+                if(common::hasPriv('epic', 'create'))      $items[]      = array('text' => $lang->epic->create, 'url' => createLink('epic', 'create', "product=$productID&branch=$branch&moduleID=$moduleID&epicID=0&projectID=$projectID") . '#app=project');
+                if(common::hasPriv('epic', 'batchCreate')) $batchItems[] = array('text' => $lang->ERCommon, 'url' => createLink('epic', 'batchCreate', "productID=$productID&branch=$branch&moduleID=$moduleID&epicID=0&project=$projectID") . '#app=project');
+            }
+
+            $items[] = array('text' => $lang->story->batchCreate, 'items' => $batchItems);
+        }
+        else
+        {
+            $items[] = array('text' => $lang->story->batchCreate, 'url' => $batchCreateLink);
+        }
 
         return btnGroup
         (
@@ -144,8 +171,6 @@ $fnBuildLinkStoryButton = function() use($lang, $app, $product, $projectHasProdu
         )));
     }
 
-    if($storyType == 'requirement') $lang->execution->linkStory = str_replace($lang->SRCommon, $lang->URCommon, $lang->execution->linkStory);
-
     $canLinkStory     = common::hasPriv('projectstory', 'linkStory');
     $canlinkPlanStory = !empty($product) && common::hasPriv('projectstory', 'importPlanStories') && $storyType == 'story' && !$project->charter;
     $linkStoryUrl     = $this->createLink('projectstory', 'linkStory', "project=$project->id&browseType=&param=0&orderBy=id_desc&recPerPage=50&pageID=1&extra=&storyType=$storyType");
@@ -181,8 +206,9 @@ $config->story->dtable->fieldList['title']['title'] = $lang->story->title;
 if($app->rawModule == 'projectstory') $config->story->dtable->fieldList['title']['link'] = array('url' => helper::createLink('projectstory', 'view', 'storyID={id}&projectID={project}'));
 
 $setting = $this->loadModel('datatable')->getSetting('product', 'browse', false, $storyType);
-if($storyType == 'requirement') unset($setting['plan'], $setting['stage'], $setting['taskCount'], $setting['bugCount'], $setting['caseCount']);
+if($storyType != 'story') unset($setting['taskCount'], $setting['bugCount'], $setting['caseCount']);
 if($storyType == 'story' && $config->edition == 'ipd') unset($setting['roadmap']);
+if($viewType == 'tiled') $setting['title']['nestedToggle'] = false;
 $cols = array_values($setting);
 
 /* DataTable data. */
@@ -195,39 +221,39 @@ foreach($stories as $story)
     $story->rawModule    = $story->module;
     $story->from         = $app->tab;
     $options['branches'] = zget($branchOptions, $story->product, array());
-
-    $data[] = $this->story->formatStoryForList($story, $options, $storyType);
-    if(!isset($story->children)) continue;
-
-    /* Children. */
-    if($config->vision != 'or')
-    {
-        foreach($story->children as $key => $child)
-        {
-            if($app->rawModule == 'projectstory' && $child->project != $story->project) continue;
-            $child->rawModule = $child->module;
-            $data[] = $this->story->formatStoryForList($child, $options, $storyType);
-        }
-    }
+    $data[] = $this->story->formatStoryForList($story, $options, $storyType, $maxGradeGroup);
 }
 
 /* Generate toolbar of DataTable footer. */
-$fnGenerateFootToolbar = function() use ($lang, $product, $productID, $project, $storyType, $browseType, $isProjectStory, $projectHasProduct, $storyProductID, $projectID, $branch, $users, $branchTagOption, $modules, $plans, $branchID, $config, $noclosedRoadmaps)
+$fnGenerateFootToolbar = function() use ($lang, $product, $productID, $project, $storyType, $browseType, $isProjectStory, $projectHasProduct, $storyProductID, $projectID, $branch, $users, $branchTagOption, $modules, $plans, $branchID, $gradePairs, $config,$noclosedRoadmaps)
 {
     /* Flag variables of permissions. */
-    $canBeChanged          = common::canModify('product', $product);
-    $canBatchEdit          = $canBeChanged && hasPriv($storyType, 'batchEdit');
-    $canBatchClose         = hasPriv($storyType, 'batchClose') && strtolower($browseType) != 'closedbyme' && strtolower($browseType) != 'closedstory';
-    $canBatchReview        = $canBeChanged && hasPriv($storyType, 'batchReview');
-    $canBatchChangeStage   = $canBeChanged && hasPriv('story', 'batchChangeStage') && $storyType == 'story';
-    $canBatchChangeBranch  = $canBeChanged && hasPriv($storyType, 'batchChangeBranch') && $product && $product->type != 'normal' && $productID;
-    $canBatchChangeModule  = $canBeChanged && hasPriv($storyType, 'batchChangeModule') && $productID && (($product->type != 'normal' && $branchID != 'all') || $product->type == 'normal') && !$isProjectStory;
-    $canBatchChangePlan    = $canBeChanged && hasPriv('story', 'batchChangePlan') && $storyType == 'story' && (!$isProjectStory || $projectHasProduct || ($isProjectStory && isset($project->model) && $project->model == 'scrum')) && $productID && $product && (($product->type != 'normal' && $branchID != 'all') || $product->type == 'normal');
-    $canBatchChangeRoadmap = $canBeChanged && hasPriv('story', 'batchChangeRoadmap') && $config->vision == 'or';
-    $canBatchAssignTo      = $canBeChanged && hasPriv($storyType, 'batchAssignTo');
-    $canBatchUnlink        = $canBeChanged && $projectHasProduct && hasPriv('projectstory', 'batchUnlinkStory');
-    $canBatchImportToLib   = $canBeChanged && $isProjectStory && in_array($this->config->edition, array('max', 'ipd')) && hasPriv('story', 'batchImportToLib') && helper::hasFeature('storylib');
-    $canBatchAction        = $canBatchEdit || $canBatchClose || $canBatchReview || $canBatchChangeStage || $canBatchChangeModule || $canBatchChangePlan || $canBatchAssignTo || $canBatchUnlink || $canBatchImportToLib || $canBatchChangeBranch || $canBatchChangeRoadmap;
+    $canBeChanged = common::canModify('product', $product);
+    if($isProjectStory)
+    {
+        $canBatchClose      = hasPriv('projectstory', 'batchClose') && strtolower($browseType) != 'closedbyme';
+        $canBatchEdit       = hasPriv('projectstory', 'batchEdit');
+        $canBatchReview     = hasPriv('projectstory', 'batchReview');
+        $canBatchAssignTo   = hasPriv('projectstory', 'batchAssignTo');
+        $canBatchChangePlan = hasPriv('projectstory', 'batchChangePlan') && $productID && $product;
+    }
+    else
+    {
+        $canBatchEdit       = $canBeChanged && hasPriv($storyType, 'batchEdit');
+        $canBatchClose      = hasPriv($storyType, 'batchClose') && strtolower($browseType) != 'closedbyme' && strtolower($browseType) != 'closedstory';
+        $canBatchReview     = $canBeChanged && hasPriv($storyType, 'batchReview');
+        $canBatchAssignTo   = $canBeChanged && hasPriv($storyType, 'batchAssignTo');
+        $canBatchChangePlan = $canBeChanged && hasPriv($storyType, 'batchChangePlan') && $productID && $product && (($product->type != 'normal' && $branchID != 'all') || $product->type == 'normal');
+    }
+
+    $canBatchChangeGrade  = $canBeChanged && hasPriv($storyType, 'batchChangeGrade');
+    $canBatchChangeStage  = $canBeChanged && hasPriv('story', 'batchChangeStage') && $storyType == 'story';
+    $canBatchChangeBranch = $canBeChanged && hasPriv($storyType, 'batchChangeBranch') && $product && $product->type != 'normal' && $productID;
+    $canBatchChangeModule = $canBeChanged && hasPriv($storyType, 'batchChangeModule') && $productID && (($product->type != 'normal' && $branchID != 'all') || $product->type == 'normal') && !$isProjectStory;
+    $canBatchChangeParent = $canBeChanged && hasPriv($storyType, 'batchChangeParent');
+    $canBatchUnlink       = $canBeChanged && $projectHasProduct && hasPriv('projectstory', 'batchUnlinkStory');
+    $canBatchImportToLib  = $canBeChanged && $isProjectStory && in_array($this->config->edition, array('max', 'ipd')) && hasPriv('story', 'batchImportToLib') && helper::hasFeature('storylib');
+    $canBatchAction       = $canBatchEdit || $canBatchClose || $canBatchReview || $canBatchChangeGrade || $canBatchChangeStage || $canBatchChangeModule || $canBatchChangePlan || $canBatchChangeParent || $canBatchAssignTo || $canBatchUnlink || $canBatchImportToLib || $canBatchChangeBranch;
 
     /* Remove empty data from data list. */
     unset($lang->story->reviewResultList[''], $lang->story->reviewResultList['revert']);
@@ -235,31 +261,34 @@ $fnGenerateFootToolbar = function() use ($lang, $product, $productID, $project,
     unset($plans[''], $lang->story->stageList[''], $users['']);
 
     /* Generate dropdown menu items for the DataTable footer toolbar.*/
-    $planItems = $planItems ?? array();
-    foreach($lang->story->reviewResultList as $key => $result) $reviewResultItems[$key] = array('text' => $result,     'class' => 'batch-btn', 'data-formaction' => $this->createLink('story', 'batchReview', "result=$key"));
-    foreach($lang->story->reasonList as $key => $reason)       $reviewRejectItems[]     = array('text' => $reason,     'class' => 'batch-btn', 'data-formaction' => $this->createLink('story', 'batchReview', "result=reject&reason=$key"));
-    foreach($branchTagOption as $branchID => $branchName)      $branchItems[]           = array('text' => $branchName, 'class' => 'batch-btn', 'data-formaction' => $this->createLink('story', 'batchChangeBranch', "branchID=$branchID"));
-    foreach($modules as $moduleID => $moduleName)              $moduleItems[]           = array('text' => $moduleName, 'class' => 'batch-btn', 'data-formaction' => $this->createLink('story', 'batchChangeModule', "moduleID=$moduleID"));
-    foreach($plans as $planID => $planName)                    $planItems[]             = array('text' => $planName,   'class' => 'batch-btn', 'data-formaction' => $this->createLink('story', 'batchChangePlan', "planID=$planID"));
+    $planItems  = $planItems ?? array();
+    $gradeItems = array();
+    foreach($lang->story->reviewResultList as $key => $result) $reviewResultItems[$key] = array('text' => $result,     'class' => 'batch-btn', 'data-formaction' => $this->createLink($isProjectStory ? 'projectstory' : $storyType, 'batchReview', "result=$key"));
+    foreach($gradePairs as $key => $result)                    $gradeItems[]            = array('text' => $result,     'class' => 'batch-btn', 'data-formaction' => $this->createLink($isProjectStory ? 'projectstory' : $storyType, 'batchChangeGrade', "result=$key"));
+    foreach($lang->story->reasonList as $key => $reason)       $reviewRejectItems[]     = array('text' => $reason,     'class' => 'batch-btn', 'data-formaction' => $this->createLink($isProjectStory ? 'projectstory' : $storyType, 'batchReview', "result=reject&reason=$key"));
+    foreach($branchTagOption as $branchID => $branchName)      $branchItems[]           = array('text' => $branchName, 'class' => 'batch-btn', 'data-formaction' => $this->createLink($isProjectStory ? 'projectstory' : $storyType, 'batchChangeBranch', "branchID=$branchID"));
+    foreach($modules as $moduleID => $moduleName)              $moduleItems[]           = array('text' => $moduleName, 'class' => 'batch-btn', 'data-formaction' => $this->createLink($isProjectStory ? 'projectstory' : $storyType, 'batchChangeModule', "moduleID=$moduleID"));
+    foreach($plans as $planID => $planName)                    $planItems[]             = array('text' => $planName,   'class' => 'batch-btn', 'data-formaction' => $this->createLink($isProjectStory ? 'projectstory' : $storyType, 'batchChangePlan', "planID=$planID"));
     foreach($noclosedRoadmaps as $roadmapID => $roadmapName)   $roadmapItems[]          = array('text' => empty($roadmapName) ? $lang->null : $roadmapName, 'class' => 'batch-btn', 'data-formaction' => $this->createLink('story', 'batchChangeRoadmap', "roadmapID=$roadmapID"));
 
     foreach($lang->story->stageList as $key => $stageName)
     {
-        if(!str_contains('|tested|verified|released|closed|', "|$key|")) continue;
+        if(!str_contains('|tested|verified|rejected|pending|released|closed|', "|$key|")) continue;
         $stageItems[] = array('text' => $stageName,  'class' => 'batch-btn', 'data-formaction' => $this->createLink('story', 'batchChangeStage', "stage=$key"));
     }
     foreach($users as $account => $realname)
     {
         if($account == 'closed') continue;
-        $assignItems[] = array('text' => $realname, 'class' => 'batch-btn', 'data-formaction' => $this->createLink('story', 'batchAssignTo', "productID={$productID}"), 'data-account' => $account);
+        $assignItems[] = array('text' => $realname, 'class' => 'batch-btn', 'data-formaction' => $this->createLink($storyType, 'batchAssignTo', "productID={$productID}"), 'data-account' => $account);
     }
 
     if(isset($reviewResultItems['reject'])) $reviewResultItems['reject'] = array('class' => 'not-hide-menu', 'text' => $lang->story->reviewResultList['reject'], 'items' => $reviewRejectItems);
     $reviewResultItems = array_values($reviewResultItems);
 
     $navActionItems = array();
-    if($canBatchClose)  $navActionItems[] = array('class' => 'batch-btn batchClostBtn', 'text' => $lang->close, 'data-page' => 'batch', 'data-formaction' => helper::createLink('story', 'batchClose', "productID={$productID}&executionID=0&storyType={$storyType}"));
-    if($canBatchReview) $navActionItems[] = array('class' => 'not-hide-menu batchReviewBtn', 'text' => $lang->story->review, 'items' => $reviewResultItems);
+    if($canBatchClose)        $navActionItems[] = array('class' => 'batch-btn batchClostBtn', 'text' => $lang->close, 'data-page' => 'batch', 'data-formaction' => helper::createLink($storyType, 'batchClose', "productID={$productID}&executionID=0"));
+    if($canBatchChangeGrade)  $navActionItems[] = array('class' => 'not-hide-menu batchGradeBtn', 'text' => $lang->story->grade, 'items' => $gradeItems);
+    if($canBatchReview)       $navActionItems[] = array('class' => 'not-hide-menu batchReviewBtn', 'text' => $lang->story->review, 'items' => $reviewResultItems);
     if($canBatchChangeStage)  $navActionItems[] = array('class' => 'not-hide-menu batchChangeStageBtn', 'text' => $lang->story->stageAB, 'items' => $stageItems);
 
     if(!$canBatchAction) return array();
@@ -275,7 +304,7 @@ $fnGenerateFootToolbar = function() use ($lang, $product, $productID, $project,
                 'className' => 'secondary batch-btn',
                 'disabled'  => ($canBatchEdit ? '': 'disabled'),
                 'data-page' => 'batch',
-                'data-formaction' => $this->createLink('story', 'batchEdit', "productID=$storyProductID&projectID=$projectID&branch=$branch&storyType=$storyType")
+                'data-formaction' => $this->createLink($storyType, 'batchEdit', "productID=$storyProductID&projectID=$projectID&branch=$branch&type=$storyType")
             ),
             /* Popup menu trigger icon. */
             array('caret' => 'up', 'className' => 'size-sm secondary', 'items' => $navActionItems, 'data-toggle' => 'dropdown', 'data-placement' => 'top-start')
@@ -295,6 +324,8 @@ $fnGenerateFootToolbar = function() use ($lang, $product, $productID, $project,
         ($canBatchChangeBranch && $product->type != 'normal') ? array('caret' => 'up', 'text' => $lang->product->branchName[$product->type], 'className' => 'batchChangeBranchBtn', 'items' => $branchItems, 'type' => 'dropdown', 'data-placement' => 'top-start', 'data-menu' => array('searchBox' => true)) : null,
         /* AssignedTo button. */
         array('caret' => 'up', 'text' => $lang->story->assignedTo, 'className' => ($canBatchAssignTo ? 'secondary batchAssignToBtn' : 'hidden'), 'items' => $assignItems, 'type' => 'dropdown', 'data-placement' => 'top-start', 'data-menu' => array('searchBox' => true)),
+        /* Change parent button. */
+        array('text' => $lang->story->changeParent, 'className' => $canBatchChangeParent ? 'secondary batchChangeParentBtn' : 'hidden', 'data-toggle' => 'modal', 'url' => createLink($storyType, 'batchChangeParent', "productID=$productID&storyType=$storyType")),
         /* Batch import to lib button .*/
         $canBatchImportToLib && $storyType != 'requirement' ? array('text' => $lang->story->importToLib, 'className' => 'btn secondary batchImportToLibBtn', 'id' => 'importToLib', 'data-toggle' => 'modal', 'url' => '#batchImportToLib', 'data-on' => 'click', 'data-call' => 'importToLib') : null
     );
@@ -309,6 +340,10 @@ $fnGenerateFootToolbar = function() use ($lang, $product, $productID, $project,
 /* Layout. */
 global $app;
 if($app->rawModule == 'projectstory' && !empty($project)) dropmenu(set::text($project->name));
+$checkedSummary = $lang->product->checkedSRSummary;
+if($storyType == 'requirement') $checkedSummary = $lang->product->checkedURSummary;
+if($storyType == 'epic')        $checkedSummary = $lang->product->checkedERSummary;
+if($isProjectStory)             $checkedSummary = $lang->product->checkedAllSummary;
 
 data('storyBrowseType', $storyBrowseType);
 
@@ -316,27 +351,59 @@ jsVar('childrenAB',     $lang->story->childrenAB);
 jsVar('projectID',      $projectID);
 jsVar('modulePairs',    $modulePairs);
 jsVar('storyType',      $storyType);
-jsVar('checkedSummary', $storyType == 'story' ? $lang->product->checkedSRSummary : $lang->product->checkedURSummary);
-
-if($isProjectStory and $storyType == 'requirement')
-{
-    unset($lang->projectstory->featureBar['story']['linkedexecution']);
-    unset($lang->projectstory->featureBar['story']['unlinkedexecution']);
-}
+jsVar('checkedSummary', $checkedSummary);
 
 $queryMenuLink = createLink($app->rawModule, $app->rawMethod, $projectIDParam . "productID=$productID&branch=$branch&browseType=bySearch&param={queryID}");
 featureBar
 (
+    ($showGrade && ($storyType != 'story' || $isProjectStory)) ? to::leading
+    (
+        picker
+        (
+            set::tree(true),
+            set::name('showGrades'),
+            set::items($gradeMenu),
+            set::search(false),
+            set::multiple(true),
+            set::width('150px'),
+            setStyle('justify-content', 'center'),
+            set::display($lang->story->viewAllGrades),
+            set::menu(array('checkbox' => true)),
+            set::value($showGrades),
+            set::onPopHidden(jsRaw('setShowGrades'))
+        )
+    ) : null,
     set::current($storyBrowseType),
     set::link(createLink($app->rawModule, $app->rawMethod, $projectIDParam . "productID=$productID&branch=$branch&browseType={key}&param=$param&storyType=$storyType&orderBy=$orderBy&recTotal={$pager->recTotal}&recPerPage={$pager->recPerPage}&pageID={$pager->pageID}&projectID=$projectID")),
     set::queryMenuLinkCallback(array(fn($key) => str_replace('{queryID}', (string)$key, $queryMenuLink))),
     li(searchToggle(set::open($browseType == 'bysearch' || $storyBrowseType == 'bysearch'), set::module($config->product->search['module'])))
 );
 
+$canExport = $isProjectStory ? hasPriv('projectstory', 'export') : hasPriv($storyType, 'export');
+$canReport = $isProjectStory ? hasPriv('projectstory', 'report') : hasPriv($storyType, 'report');
+$reportUrl = $isProjectStory ? helper::createLink('projectstory', 'report', "productID=$productID&branchID=$branch&storyType=$storyType&browseType=$browseType&moduleID=$moduleID&chartType=pie&projectID=$projectID") : helper::createLink($storyType, 'report', "productID=$productID&branchID=$branch&storyType=$storyType&browseType=$browseType&moduleID=$moduleID");
+$exportUrl = $isProjectStory ? helper::createLink('projectstory', 'export', "productID=$productID&orderBy=$orderBy&executionID=$projectID&browseType=$browseType") : helper::createLink($storyType, 'export', "productID=$productID&orderBy=$orderBy&executionID=$projectID&browseType=$browseType");
 toolbar
 (
-    (!hasPriv('story', 'report') || !$productID) ? null : item(set(array('id' => 'reportBtn', 'icon' => 'bar-chart', 'class' => 'ghost', 'url' => helper::createLink('story', 'report', "productID=$productID&branchID=$branch&storyType=$storyType&browseType=$browseType&moduleID=$moduleID&chartType=pie&projectID=$projectID") . ($app->tab == 'project' ? '#app=project' : '')))),
-    !hasPriv('story', 'export') ? null : item(set(array('id' => 'exportBtn', 'icon' => 'export', 'class' => 'ghost', 'url' => helper::createLink('story', 'export', "productID=$productID&orderBy=$orderBy&executionID=$projectID&browseType=$browseType&storyType=$storyType"), 'data-toggle' => 'modal'))),
+    item(set(array
+    (
+        'type'  => 'btnGroup',
+        'items' => array(array
+        (
+            'icon'      => 'list',
+            'class'     => 'btn-icon switchButton' . ($viewType == 'tiled' ? ' text-primary' : ''),
+            'data-type' => 'tiled',
+            'hint'      => $lang->story->viewTypeList['tiled']
+        ), array
+        (
+            'icon'      => 'treeview',
+            'class'     => 'switchButton btn-icon' . ($viewType == 'tree' ? ' text-primary' : ''),
+            'data-type' => 'tree',
+            'hint'      => $lang->story->viewTypeList['tree']
+        ))
+    ))),
+    (!$canReport || !$productID) ? null : item(set(array('id' => 'reportBtn', 'icon' => 'bar-chart', 'class' => 'ghost', 'url' => $reportUrl))),
+    !$canExport ? null : item(set(array('id' => 'exportBtn', 'icon' => 'export', 'class' => 'ghost', 'url' => $exportUrl, 'data-toggle' => 'modal'))),
     $fnBuildCreateStoryButton(),
     $fnBuildLinkStoryButton()
 );
@@ -346,10 +413,13 @@ $fnGenerateSideBar();
 $footToolbar = $fnGenerateFootToolbar();
 $sortLink    = createLink('product', 'browse', "productID={$productID}&branch={$branch}&browseType={$browseType}&param={$param}&storyType={$storyType}&orderBy={name}_{sortType}&recTotal={$pager->recTotal}&recPerPage={$pager->recPerPage}&pageID={$pager->pageID}&projectID=$projectID");
 if($this->app->rawModule == 'projectstory') $sortLink = createLink('projectstory', 'story', "projectID={$projectID}&productID={$productID}&branch=$branch&browseType=$browseType&param=$param&storyType=$storyType&orderBy={name}_{sortType}&recTotal={$pager->recTotal}&recPerPage={$pager->recPerPage}&pageID={$pager->pageID}");
+
+$emptyTip = $lang->story->noStory;
+if($storyType == 'requirement') $emptyTip = $lang->story->noRequirement;
+if($storyType == 'epic')        $emptyTip = $lang->story->noEpic;
 dtable
 (
     set::id('stories'),
-    set::rowKey('uniqueID'),
     set::userMap($users),
     set::customCols(array('url' => createLink('datatable', 'ajaxcustom', "module={$app->moduleName}&method={$app->methodName}&extra={$storyType}"), 'globalUrl' => createLink('datatable', 'ajaxsaveglobal', "module={$app->moduleName}&method={$app->methodName}&extra={$storyType}"))),
     set::checkable(!empty($footToolbar)),  // The user can do batch action if this parameter is not false(true, null).
@@ -361,9 +431,9 @@ dtable
     set::checkInfo(jsRaw("function(checkedIdList){return window.setStatistics(this, checkedIdList, '{$summary}');}")),
     set::footPager(usePager()),
     set::footToolbar($footToolbar),
-    set::emptyTip($storyType == 'story' ? $lang->story->noStory : $lang->story->noRequirement),
+    set::emptyTip($emptyTip),
     set::createTip($lang->story->create),
-    set::createLink(hasPriv($storyType, 'create') ? createLink('story', 'create', "product=$productID&branch=$branch&moduleID=$moduleID&storyID=0&projectID=$projectID&bugID=0&planID=0&todoID=0&extra=&storyType=$storyType") . ($isProjectStory ? '#app=project' : '') : '')
+    set::createLink(hasPriv($storyType, 'create') ? createLink($storyType, 'create', "product=$productID&branch=$branch&moduleID=$moduleID&storyID=0&projectID=$projectID&bugID=0&planID=0&todoID=0&extra=&storyType=$storyType") . ($isProjectStory ? '#app=project' : '') : '')
 );
 
 modal(set::id('#batchUnlinkStoryBox'));
@@ -372,6 +442,41 @@ $linkStoryByPlanTips = $lang->execution->linkNormalStoryByPlanTips;
 if($product && $product->type != 'normal') $linkStoryByPlanTips = sprintf($lang->execution->linkBranchStoryByPlanTips, $lang->product->branchName[$product->type]);
 if($isProjectStory) $linkStoryByPlanTips = str_replace($lang->execution->common, $lang->projectCommon, $linkStoryByPlanTips);
 
+if(in_array($this->config->edition, array('max', 'ipd')))
+{
+    modal
+    (
+        setID('batchImportToLib'),
+        set::title($lang->story->importToLib),
+        form
+        (
+            set::action($this->createLink('story', 'batchImportToLib')),
+            formGroup
+            (
+                set::label($lang->story->lib),
+                picker
+                (
+                    set::name('lib'),
+                    set::items($libs),
+                    set::required(true)
+                )
+            ),
+            (!hasPriv('assetlib', 'approveStory') && !hasPriv('assetlib', 'batchApproveStory')) ? formGroup
+            (
+                set::label($lang->story->approver),
+                picker
+                (
+                    set::name('assignedTo'),
+                    set::items($approvers)
+                )
+            ) : null,
+            set::submitBtnText($lang->import),
+            formHidden('storyIdList', ''),
+            set::actions(array('submit'))
+        )
+    );
+}
+
 modal
 (
     setID('linkStoryByPlan'),
diff --git a/module/product/ui/track.html.php b/module/product/ui/track.html.php
index 9a3e591631..e25390087b 100644
--- a/module/product/ui/track.html.php
+++ b/module/product/ui/track.html.php
@@ -12,232 +12,129 @@ declare(strict_types=1);
 
 namespace zin;
 
-if($config->URAndSR && $this->app->rawModule == 'projectstory' && $this->session->hasProduct)
+$viewByTypePairs = array();
+foreach($storyTypeList as $type => $typeName) $viewByTypePairs[$type] = sprintf($lang->story->viewByType, $typeName);
+
+$storyTypeLang = $storyTypeList[$storyType];
+$paramTemplate = "productID={$productID}&branch={$branch}&projectID={$projectID}&browseType=allstory&param=0&storyType=%s&orderBy=%s";
+if($app->rawModule == 'projectstory') $paramTemplate = "projectID={$projectID}&productID={$productID}&branch={$branch}&browseType=allstory&param=0&storyType=%s&orderBy=%s";
+
+$orderByItems = array();
+$orderByTitle = '';
+if($storyType != 'story') unset($lang->story->trackOrderByList['stage']);
+foreach($lang->story->trackOrderByList as $orderByType => $orderByName)
 {
-    $productItems = array();
-    foreach($projectProducts as $id => $name)
+    $item = array();
+    $item['text']     = $orderByName;
+    $item['selected'] = strpos($orderBy, $orderByType) === 0;
+    $item['items']    = array();
+    $item['items'][]  = array('text' => $lang->story->trackSortList['asc'],  'selected' => $orderBy == "{$orderByType}_asc",  'url' => createLink($app->rawModule, 'track', sprintf($paramTemplate, $storyType, "{$orderByType}_asc")));
+    $item['items'][]  = array('text' => $lang->story->trackSortList['desc'], 'selected' => $orderBy == "{$orderByType}_desc", 'url' => createLink($app->rawModule, 'track', sprintf($paramTemplate, $storyType, "{$orderByType}_desc")));
+    $orderByItems[]   = $item;
+
+    if($item['selected'])
     {
-        $productItems[] = array('text' => $name, 'url' => createLink('projectstory', 'track', "projectID={$this->session->project}&productID={$id}"), 'active' => $productID == $id);
+        $orderByTitle = $orderByName;
+        if($orderBy == "{$orderByType}_asc")  $orderByTitle .= $lang->story->trackSortList['asc'];
+        if($orderBy == "{$orderByType}_desc") $orderByTitle .= $lang->story->trackSortList['desc'];
     }
 }
 
-$getRequirements = function($tracks)
-{
-    global $app, $config, $lang;
-    $requirementItems = array();
-    $tab              = $app->rawModule == 'projectstory' ? 'project' : 'product';
-    $module           = $app->rawModule == 'projectstory' ? 'projectstory' : 'story';
-    foreach($tracks as $key => $requirement)
-    {
-        $track   = ($key == 'noRequirement') ? $requirement : $requirement->track;
-        $rowspan = count($track);
-        $title   = $lang->story->noRequirement;
-        if($config->URAndSR && $key != 'noRequirement') $title = common::hasPriv($requirement->type, 'view') ? a(
-            set('href', createLink('story', 'view', "storyID={$requirement->id}")),
-            set('title', $requirement->title),
-            set('data-app', $tab),
-            $requirement->title
-       ) : $requirement->title;
+$dropdownItems = array();
+foreach($viewByTypePairs as $type => $typeName) $dropdownItems[] = array('text' => $typeName, 'selected' => $storyType == $type, 'url' => createLink($app->rawModule, 'track', sprintf($paramTemplate, $type, ($type != 'story' && strpos($orderBy, 'stage') === 0) ? 'id_desc' : $orderBy)));
 
-        $requirementItems[] = h::tr(
-            $config->URAndSR ? h::td(
-                $rowspan != 0 ? set('rowspan', $rowspan) : null,
-                setClass('requirement'),
-                $key != 'noRequirement' ? label(
-                    setClass('primary-pale ring-primary mr-1'),
-                    zget($lang->story->statusList, $requirement->status)
-                ) : null,
-                set('title', $key != 'noRequirement' ? $requirement->title : $lang->story->noRequirement),
-                $title
-            ) : null,
-            count($track) != 0 ? getStoryTrack($track, $tab, $module) : null
-            );
-    }
-    return $requirementItems;
-};
-
-function getStoryTrack($track, $tab, $module)
-{
-    $i          = 0;
-    $storyItems = array();
-    foreach($track as $storyID => $story)
-    {
-        if($i > 0)
-        {
-            $storyItems[] = h::tr(getTrackTd($storyID, $story, $tab, $module));
-        }
-        else
-        {
-            $storyItems[] = getTrackTd($storyID, $story, $tab, $module);
-        }
-        $i ++;
-    }
-    return $storyItems;
-};
-
-function getTrackTd($storyID, $story, $tab, $module)
-{
-    global $lang, $config;
-    $trackItem = array();
-
-    /* Story. */
-    $trackItem[] = h::td(
-        isset($story->parent) && $story->parent > 0 ? label(
-            setClass('rounded-full light mr-1'),
-            set('title', $lang->story->children),
-            $lang->story->childrenAB
-        ) : null,
-        a(
-            set('href', createLink($module, 'view', "storyID={$storyID}")),
-            set('title', $story->title),
-            set('data-app', $tab),
-            $story->title
-        )
-    );
-
-    $trackItem[] = h::td(getTaskTd($story->tasks)); // Task
-
-    if(in_array($config->edition, array('max', 'ipd'))) $trackItem[] = h::td(getDesignTd($story->designs)); // Design
-
-    $trackItem[] = h::td(getCaseTd($story->cases)); // Case
-
-    if(in_array($config->edition, array('max', 'ipd')) && helper::hasFeature('devops')) $trackItem[] = h::td(getRevisionTd($story->revisions)); // Revision
-
-    $trackItem[] = h::td(getBugTd($story->bugs)); // Bug
-
-    return $trackItem;
-};
-
-function getTaskTd($tasks)
-{
-    $taskItems = array();
-    foreach($tasks as $task)
-    {
-        $taskItems[] = a(
-            set('href', createLink('task', 'view', "taskID={$task->id}")),
-            set('title', $task->name),
-            $task->name
-        );
-        $taskItems[] = br();
-    }
-    return $taskItems;
-};
-
-function getDesignTd($designs)
-{
-    $designItems = array();
-    foreach($designs as $design)
-    {
-        $designItems[] = a(
-            set('href', createLink('design', 'view', "designID={$design->id}")),
-            set('title', $design->name),
-            $design->name
-        );
-        $designItems[] = br();
-    }
-    return $designItems;
-};
-
-function getCaseTd($cases)
-{
-    $caseItems = array();
-    foreach($cases as $case)
-    {
-        $caseItems[] = a(
-            set('href', createLink('testcase', 'view', "caseID={$case->id}")),
-            set('title', $case->title),
-            $case->title
-        );
-        $caseItems[] = br();
-    }
-    return $caseItems;
-};
-
-function getRevisionTd($revisions)
-{
-    $revisionItems = array();
-    foreach($revisions as $revision => $repoComment)
-    {
-        $revisionItems[] = a(
-            set('href', createLink('design', 'revision', "revisionID={$revision}")),
-            set('title', $repoComment),
-            '#'. $revision . '-' . $repoComment
-        );
-        $revisionItems[] = br();
-    }
-    return $revisionItems;
-};
-
-function getBugTd($bugs)
-{
-    $bugItems = array();
-    foreach($bugs as $bug)
-    {
-        $bugItems[] = a(
-            set('href', createLink('bug', 'view', "bugID={$bug->id}")),
-            set('title', $bug->title),
-            $bug->title
-        );
-        $bugItems[] = br();
-    }
-    return $bugItems;
-};
-
-$colspan = 4;
-if($config->URAndSR) $colspan ++;
-if(in_array($config->edition, array('max', 'ipd'))) $colspan ++;
-if(in_array($config->edition, array('max', 'ipd')) && helper::hasFeature('devops')) $colspan ++;
-div
+featureBar
 (
-    setClass('main-col'),
-    div(
-        setClass('main-table'),
-        h::table
+    to::leading
+    (
+        ($app->rawModule == 'projectstory' && count($projectProducts) > 1) ? picker
         (
-            setID('trackList'),
-            setClass('table table-bordered'),
-            h::thead
-            (
-                $config->URAndSR ? h::th(
-                    !empty($productItems) ? dropdown(
-                        btn(
-                            setClass('ghost btn square btn-default'),
-                            set::icon('product'),
-                            $projectProducts[$productID]
-                        ),
-                        set::items($productItems),
-                        set::placement('bottom-start')
-                    ) : $lang->story->requirement
-                ) : null,
-                h::th($lang->story->story),
-                h::th($lang->story->tasks),
-                in_array($config->edition, array('max', 'ipd')) ? h::th($lang->story->design) : null,
-                h::th($lang->story->case),
-                in_array($config->edition, array('max', 'ipd')) && helper::hasFeature('devops') ? h::th($lang->story->repoCommit) : null,
-                h::th($lang->story->bug)
-            ),
-            h::tbody
-            (
-                !empty($tracks) ? $getRequirements($tracks) : h::tr
-                (
-                    h::td
-                    (
-                        setClass('text-gray text-center empty-tip'),
-                        set::colspan($colspan),
-                        $lang->product->noData
-                    )
-                )
-            )
-        ),
-        !empty($tracks) ? div
+            setID('switchProduct'),
+            set::name('switchProduct'),
+            set::items(array(0 => $this->lang->product->all) + $projectProducts),
+            set::value($productID),
+            set::required(true),
+            on::change('changeProduct'),
+            set::width(145)
+        ) : null,
+        count($viewByTypePairs) > 1 ? dropdown
         (
-            setClass('table-footer'),
-            pager(
-                set::_className('flex justify-end items-center'),
-                set::linkCreator(createLink($app->rawModule, $app->rawMethod, "productID={$productID}&branch={$branch}&projectID={$projectID}&recTotal={$pager->recTotal}&recPerPage={recPerPage}&pagerID={page}"))
-            )
+            to('trigger', btn(setClass('switchBtn'), $viewByTypePairs[$storyType])),
+            set::items($dropdownItems),
         ) : null
+    ),
+    li(searchToggle(set::open($browseType == 'bysearch'), set::module($config->product->search['module']), set::text($lang->searchAB . $storyTypeLang)))
+);
+
+toolbar
+(
+    formSettingBtn
+    (
+        set::customFields($customFields),
+        set::noCancel(true),
+        set::canGlobal(commonModel::hasPriv('datatable', 'setGlobal')),
+        set::urlParams("module=product&section=trackFields&key={$storyType}"),
+        set::submitCallback("loadCurrentPage"),
+        set::restoreCallback("loadCurrentPage"),
+        set::text($lang->settings)
     )
 );
 
-render();
+$privs['epic']        = commonModel::hasPriv('epic',        'view');
+$privs['requirement'] = commonModel::hasPriv('requirement', 'view');
+$privs['story']       = commonModel::hasPriv('story',       'view');
+$privs['project']     = commonModel::hasPriv('project',     'view');
+$privs['execution']   = commonModel::hasPriv('execution',   'task');
+$privs['task']        = commonModel::hasPriv('task',        'view');
+$privs['bug']         = commonModel::hasPriv('bug',         'view');
+$privs['case']        = commonModel::hasPriv('testcase',    'view');
+$privs['design']      = commonModel::hasPriv('design',      'view');
+$privs['commit']      = commonModel::hasPriv('repo',        'revision');
+
+$app->loadLang('epic');
+$app->loadLang('requirement');
+$app->loadLang('project');
+$app->loadLang('task');
+$app->loadLang('bug');
+$app->loadLang('testcase');
+jsVar('langStoryPriList',      array('epic' => $lang->epic->priList,    'requirement' => $lang->requirement->priList,    'story' => $lang->story->priList));
+jsVar('langStoryStatusList',   array('epic' => $lang->epic->statusList, 'requirement' => $lang->requirement->statusList, 'story' => $lang->story->statusList));
+jsVar('langStoryStageList',    array('epic' => $lang->epic->stageList,  'requirement' => $lang->requirement->stageList,  'story' => $lang->story->stageList));
+jsVar('langProjectStatusList', $lang->project->statusList);
+jsVar('langTaskPriList',       $lang->task->priList);
+jsVar('langTaskStatusList',    $lang->task->statusList);
+jsVar('langChildren',          $lang->task->childrenAB);
+jsVar('langBugPriList',        $lang->bug->priList);
+jsVar('langBugSeverityList',   $lang->bug->severityList);
+jsVar('langCasePriList',       $lang->testcase->priList);
+jsVar('langCaseResultList',    $lang->testcase->resultList);
+jsVar('langUnexecuted',        $lang->testcase->unexecuted);
+
+jsVar('storyIdList',  $storyIdList);
+jsVar('projectID',    $projectID);
+jsVar('mergeCells',   $mergeCells);
+jsVar('orderByItems', $orderByItems);
+jsVar('orderByTitle', $orderByTitle);
+jsVar('storyType',    $storyType);
+jsVar('users',        $users);
+jsVar('privs',        $privs);
+
+empty($tracks) ? div(setClass('dtable-empty-tip bg-white shadow'), span(setClass('text-gray'), $lang->noData)) : div
+(
+    set::id('track'),
+    zui::kanbanList
+    (
+        set::key('kanban'),
+        set::items(array(array(
+            'data'        => $tracks,
+            'getLaneCol'  => jsRaw('window.getLaneCol'),
+            'getCol'      => jsRaw('window.getCol'),
+            'getItem'     => jsRaw('window.getItem'),
+            'itemRender'  => jsRaw('window.itemRender'),
+            'afterRender' => jsRaw('window.afterRender'),
+            'draggable'   => false
+        ))),
+        set::height('calc(100vh - 130px)')
+    ),
+    pager(setClass('justify-end'))
+);
diff --git a/module/product/zen.php b/module/product/zen.php
index 920aea9ba1..0d6186c2fb 100644
--- a/module/product/zen.php
+++ b/module/product/zen.php
@@ -378,6 +378,12 @@ class productZen extends product
         $extendFieldList = $this->product->getFlowExtendFields();
         foreach($extendFieldList as $field => $name)
         {
+            if(str_contains(strtolower($fieldName), 'epic') && !$this->config->enableER) continue;
+            if(str_contains(strtolower($fieldName), 'requirement') && !$this->config->URAndSR) continue;
+
+            $fieldName = trim($fieldName);
+            $fieldPairs[$fieldName] = zget($productLang, $fieldName);
+
             $extCol = $config->product->dtable->extendField;
             $extCol['name']  = $field;
             $extCol['title'] = $name;
@@ -895,7 +901,7 @@ class productZen extends product
      * @access protected
      * @return array
      */
-    protected function getStories(int $projectID, int $productID, string $branchID, int $moduleID, int $param, string $storyType, string $browseType, string $orderBy, object $pager): array
+    public function getStories(int $projectID, int $productID, string $branchID = '', int $moduleID = 0, int $param = 0, string $storyType = 'all', string $browseType = 'allstory', string $orderBy = 'id_desc', object $pager = null): array
     {
         /* Append id for second sort. */
         $sort = common::appendOrder($orderBy);
@@ -910,7 +916,7 @@ class productZen extends product
             $this->products = $this->product->getProducts($projectID, 'all', '', false);
 
             if($browseType == 'bybranch') $param = $branchID;
-            $stories = $this->story->getExecutionStories($projectID, $productID, $sort, $browseType, (string)$param, $storyType, '', $pager);
+            $stories = $this->story->getExecutionStories($projectID, $productID, $sort, $browseType, (string)$param, 'all', '', $pager);
         }
         else
         {
@@ -1135,6 +1141,36 @@ class productZen extends product
         $this->product->buildSearchForm($productID, $this->products, $queryID, $actionURL, $storyType, $branch, $projectID);
     }
 
+    /**
+     * 构建矩阵搜索表单。
+     * Build search form for track.
+     *
+     * @param  int         $productID
+     * @param  string      $branch
+     * @param  int         $projectID
+     * @param  string      $browseType
+     * @param  int         $param
+     * @param  string      $storyType
+     * @access protected
+     * @return void
+     */
+    protected function buildSearchFormForTrack(int &$productID, string $branch, int $projectID, string $browseType, int $param, string $storyType): void
+    {
+        if($this->config->edition == 'ipd' && $storyType == 'story') unset($this->config->product->search['fields']['roadmap']);
+        if($this->config->edition == 'ipd' && $storyType == 'requirement')
+        {
+            $this->config->product->search['params']['roadmap']['values'] = $this->loadModel('roadmap')->getPairs($productID);
+        }
+
+        /* Build search form. */
+        $actionURL = $this->createLink('product', 'track', "productID={$productID}&branch={$branch}&projectID={$projectID}&browseType=bySearch&param=myQueryID&storyType=$storyType");
+        if($this->app->rawModule == 'projectstory') $actionURL = $this->createLink('projectstory', 'track', "projectID={$projectID}&productID={$productID}&branch={$branch}&browseType=bySearch&param=myQueryID&storyType=$storyType");
+
+        $this->config->product->search['module'] = $this->app->rawModule . 'Track';
+        $queryID = ($browseType == 'bysearch') ? (int)$param : 0;
+        $this->product->buildSearchForm($productID, $this->products, $queryID, $actionURL, $storyType, $branch, $projectID);
+    }
+
     /**
      * 获取需求的ID列表。
      * Get ID list of stories.
@@ -1350,6 +1386,10 @@ class productZen extends product
         $projectProducts = $this->getProjectProductList($projectID, $isProjectStory);
         list($branchOpt, $branchTagOpt) = $this->getBranchAndTagOption($projectID, $product, $isProjectStory);
 
+        $gradeList  = $this->loadModel('story')->getGradeList('');
+        $gradeGroup = array();
+        foreach($gradeList as $grade) $gradeGroup[$grade->type][$grade->grade] = $grade->name;
+
         /* Set show module by config. */
         $showModule = empty($this->config->product->browse->showModule) ? 0 : $this->config->product->browse->showModule;
         if($isProjectStory) $showModule = empty($this->config->projectstory->story->showModule) ? 0 : $this->config->projectstory->story->showModule;
@@ -1360,6 +1400,11 @@ class productZen extends product
         $this->view->projectID       = $projectID;
         $this->view->project         = $project;
         $this->view->stories         = $stories;
+        $this->view->gradeGroup      = $gradeGroup;
+        $this->view->showGrade       = $this->config->edition == 'ipd';
+        $this->view->gradeMenu       = $this->loadModel('story')->getGradeMenu($storyType, $project);
+        $this->view->gradePairs      = $this->story->getGradePairs($storyType);
+        $this->view->maxGradeGroup   = $this->story->getMaxGradeGroup();
         $this->view->storyType       = $storyType;
         $this->view->browseType      = $browseType;
         $this->view->isProjectStory  = $isProjectStory;
@@ -1370,6 +1415,10 @@ class productZen extends product
         $this->view->branchTagOption = $branchTagOpt;
         $this->view->projectProducts = $projectProducts;
 
+        $module = $this->app->tab == 'product' ? $storyType : $this->app->tab;
+        $this->view->showGrades = isset($this->config->{$module}->showGrades) ? $this->config->{$module}->showGrades : $this->story->getDefaultShowGrades($this->view->gradeMenu);
+
+        $storyType = $isProjectStory ? 'all' : $storyType;
         $this->view->summary    = $this->product->summary($stories, $storyType);
         $this->view->plans      = $this->loadModel('productplan')->getPairs($productID, isset($projectProducts[$productID]) ? array(BRANCH_MAIN) + $projectProducts[$productID]->branches : (($branch === 'all' || empty($branch)) ? '' : $branch), 'unexpired,noclosed', true);
         $this->view->users      = $this->loadModel('user')->getPairs('noletter|pofirst|nodeleted');
@@ -1420,4 +1469,61 @@ class productZen extends product
 
         return array_values($projectList);
     }
+
+    /**
+     * 为跟踪矩阵设置自定义列。
+     * Get custom fields for track.
+     *
+     * @param  string    $storyType   epic|requirement|story
+     * @access protected
+     * @return array
+     */
+    public function getCustomFieldsForTrack(string $storyType): array
+    {
+        $listFields = array();
+        $listFields['requirement'] = $this->lang->URCommon;
+        $listFields['story']       = $this->lang->SRCommon;
+        $listFields['project']     = $this->lang->story->project;
+        $listFields['execution']   = $this->lang->story->execution;
+        $listFields['design']      = $this->lang->story->design;
+        $listFields['commit']      = $this->lang->story->repoCommit;
+        $listFields['task']        = $this->lang->story->tasks;
+        $listFields['bug']         = $this->lang->story->bugs;
+        $listFields['case']        = $this->lang->story->cases;
+
+        if($storyType == 'requirement' || $storyType == 'story') unset($listFields['requirement']);
+        if($storyType == 'story') unset($listFields['story']);
+
+        $showFields = !isset($this->config->product->trackFields->{$storyType}) ? array_keys($listFields) : explode(',', $this->config->product->trackFields->{$storyType});
+        return array('list' => $listFields, 'show' => array_merge(array($storyType), $showFields));
+    }
+
+    /**
+     * 获取根据矩阵可用的需求类型。
+     * Get active storyType list for track.
+     *
+     * @param  int       $projectID
+     * @param  int       $productID
+     * @access protected
+     * @return array
+     */
+    public function getActiveStoryTypeForTrack(int $projectID = 0, int $productID = 0): array
+    {
+        $storyTypeList = $this->lang->story->typeList;
+
+        /* Check story type by linked story's type. */
+        if($this->app->rawModule == 'projectstory' && $projectID)
+        {
+            $stories = $this->getStories($projectID, $productID);
+            if($stories)
+            {
+                $havingType = array();
+                foreach($stories as $story) $havingType[$story->type] = $story->type;
+                if(!isset($havingType['epic'])) unset($storyTypeList['epic']);
+                if(!isset($havingType['epic']) && !isset($havingType['requirement'])) unset($storyTypeList['requirement']);
+            }
+        }
+
+        return $storyTypeList;
+    }
 }
diff --git a/module/productplan/control.php b/module/productplan/control.php
index 7a3ef1af46..61fbb392f4 100644
--- a/module/productplan/control.php
+++ b/module/productplan/control.php
@@ -352,6 +352,8 @@ class productplan extends control
      */
     public function view(int $planID = 0, string $type = 'story', string $orderBy = 'order_desc', string $link = 'false', string $param = '', int $recTotal = 0, int $recPerPage = 100, int $pageID = 1)
     {
+        $this->app->loadLang('requirement');
+        $this->app->loadLang('epic');
         $plan = $this->productplan->getByID($planID, true);
         if(!$plan)
         {
@@ -389,7 +391,7 @@ class productplan extends control
         $this->view->modulePairs  = $modulePairs;
         $this->view->planStories  = $planStories;
         $this->view->planBugs     = $this->loadModel('bug')->getPlanBugs($planID, 'all', $type == 'bug' ? $sort : 'id_desc', $bugPager);
-        $this->view->summary      = $this->product->summary($planStories);
+        $this->view->summary      = $this->productplanZen->buildViewSummary($planStories);
         $this->view->type         = $type;
         $this->view->orderBy      = $orderBy;
         $this->view->link         = $link;
@@ -578,11 +580,11 @@ class productplan extends control
         $planStories = $this->loadModel('story')->getPlanStories($planID);
         if($browseType == 'bySearch')
         {
-            $allStories = $this->story->getBySearch($plan->product, "0,{$plan->branch}", (int)$param, 'id', 0, 'story', array_keys($planStories), '', $pager);
+            $allStories = $this->story->getBySearch($plan->product, "0,{$plan->branch}", (int)$param, 'id_desc', 0, 'all', array_keys($planStories), '', $pager);
         }
         else
         {
-            $allStories = $this->story->getProductStories($this->view->product->id, $plan->branch ? "0,{$plan->branch}" : 0, '0', 'draft,reviewing,active,changing', 'story', 'id_desc', $hasParent = false, array_keys($planStories), $pager);
+            $allStories = $this->story->getProductStories($this->view->product->id, $plan->branch ? "0,{$plan->branch}" : 0, '0', 'draft,reviewing,active,changing,launched', 'all', 'id_desc', true, array_keys($planStories), $pager);
         }
 
         $modules = $this->loadModel('tree')->getOptionMenu($plan->product, 'story', 0, 'all');
diff --git a/module/productplan/js/view.ui.js b/module/productplan/js/view.ui.js
index 6f09ac30ae..d16f579e53 100644
--- a/module/productplan/js/view.ui.js
+++ b/module/productplan/js/view.ui.js
@@ -12,7 +12,8 @@ window.renderStoryCell = function(result, info)
     if(info.col.name == 'title' && result)
     {
         let html = '';
-        if(story.parent > 0) html += "<span class='label gray-pale rounded-xl'>" + childrenAB + "</span>";
+        let gradeLabel = gradeGroup[story.type][story.grade];
+        if(gradeLabel) html += "<span class='label gray-pale rounded-xl clip'>" + gradeLabel + "</span> ";
         if(html) result.unshift({html});
     }
 
@@ -60,27 +61,30 @@ window.onSearchLinks = function(type, result)
  * @access public
  * @return object
  */
-window.setStatistics = function(element, checkedIdList)
+window.setStatistics = function(element, checkedIdList, pageSummary)
 {
-    const checkedTotal = checkedIdList.length;
-    if(checkedTotal == 0) return {html: summary};
+    if(checkedIdList == undefined || checkedIdList.length == 0) return {html: pageSummary};
 
     let checkedEstimate = 0;
     let checkedCase     = 0;
     let total           = 0;
 
-    checkedIdList.forEach((rowID) => {
-        const story  = element.getRowInfo(rowID);
-        total += 1;
-        if(story)
+    const rows = element.layout.allRows;
+    rows.forEach((row) => {
+        if(checkedIdList.includes(row.id))
         {
-            checkedEstimate += parseFloat(story.data.estimate);
-            if(cases[rowID]) checkedCase += 1;
+            const story = element.getRowInfo(row.id);
+            if(story.data.type == 'story')
+            {
+                total += 1;
+                checkedEstimate += parseFloat(story.data.estimate);
+                if(cases[row.id]) checkedCase += 1;
+            }
         }
-    })
+    });
 
-    const rate = Math.round(checkedCase / checkedTotal * 10000) / 100 + '' + '%';
-    return {html: checkedSummary.replace('%total%', checkedTotal)
+    const rate = Math.round(checkedCase / total * 10000) / 100 + '' + '%';
+    return {html: checkedSummary.replace('%total%', total)
         .replace('%estimate%', checkedEstimate.toFixed(1))
         .replace('%rate%', rate)};
 }
diff --git a/module/productplan/lang/de.php b/module/productplan/lang/de.php
index 5fdf439758..d5ecda6004 100644
--- a/module/productplan/lang/de.php
+++ b/module/productplan/lang/de.php
@@ -78,8 +78,9 @@ $lang->productplan->projectNotEmpty    = $lang->projectCommon . ' cannot be empt
 $lang->productplan->nextStep           = "Next step";
 $lang->productplan->summary            = "Total: <strong>%s</strong>, Parents: <strong>%s</strong>, Children: <strong>%s</strong>，Independent: <strong>%s</strong>.";
 $lang->productplan->checkedSummary     = "Seleted: <strong>%total%</strong>, Parents: <strong>%parent%</strong>, Children: <strong>%child%</strong>, Independent: <strong>%independent%</strong>.";
-$lang->productplan->confirmChangePlan  = "After the branch of『%s』is unlinked, %s {$lang->SRCommon} and %s bugs under the branch will be removed from the plan at the same time, so still want to unassociate?";
-$lang->productplan->confirmRemoveStory = "After the branch of『%s』is unlinked, %s {$lang->SRCommon} under the branch will be removed from the plan at the same time, so still want to unassociate?";
+$lang->productplan->storySummary       = "Total: <strong>%s</strong> {$lang->ERCommon}s, <strong>%s</strong> {$lang->URCommon}s, <strong>%s</strong> {$lang->SRCommon}s on this page. Estimates <strong>%s</strong> h,  and Case Coverage: <strong>%s</strong>.";
+$lang->productplan->confirmChangePlan  = "After the branch of『%s』is unlinked, %s story and %s bugs under the branch will be removed from the plan at the same time, so still want to unassociate?";
+$lang->productplan->confirmRemoveStory = "After the branch of『%s』is unlinked, %s story under the branch will be removed from the plan at the same time, so still want to unassociate?";
 $lang->productplan->confirmRemoveBug   = "After the branch of『%s』is unlinked, %s bugs under the branch will be removed from the plan at the same time, so still want to unassociate?";
 
 $lang->productplan->id          = 'ID';
@@ -104,6 +105,7 @@ $lang->productplan->order       = "Rank";
 $lang->productplan->deleted     = "Deleted";
 $lang->productplan->mailto      = "Mailto";
 $lang->productplan->planStatus  = "Status";
+$lang->productplan->storyTitle  = "Title";
 $lang->productplan->createdBy   = 'Created By';
 $lang->productplan->createdDate = 'Created Date';
 
diff --git a/module/productplan/lang/en.php b/module/productplan/lang/en.php
index 3f2ad92823..7c5347ebed 100644
--- a/module/productplan/lang/en.php
+++ b/module/productplan/lang/en.php
@@ -78,8 +78,9 @@ $lang->productplan->projectNotEmpty    = $lang->projectCommon . ' cannot be empt
 $lang->productplan->nextStep           = "Next step";
 $lang->productplan->summary            = "Total: <strong>%s</strong>, Parents: <strong>%s</strong>, Children: <strong>%s</strong>，Independent: <strong>%s</strong>.";
 $lang->productplan->checkedSummary     = "Seleted: <strong>%total%</strong>, Parents: <strong>%parent%</strong>, Children: <strong>%child%</strong>, Independent: <strong>%independent%</strong>.";
-$lang->productplan->confirmChangePlan  = "After the branch of『%s』is unlinked, %s {$lang->SRCommon} and %s bugs under the branch will be removed from the plan at the same time, so still want to unassociate?";
-$lang->productplan->confirmRemoveStory = "After the branch of『%s』is unlinked, %s {$lang->SRCommon} under the branch will be removed from the plan at the same time, so still want to unassociate?";
+$lang->productplan->storySummary       = "Total: <strong>%s</strong> {$lang->ERCommon}s, <strong>%s</strong> {$lang->URCommon}s, <strong>%s</strong> {$lang->SRCommon}s on this page. Estimates <strong>%s</strong> h,  and Case Coverage: <strong>%s</strong>.";
+$lang->productplan->confirmChangePlan  = "After the branch of『%s』is unlinked, %s story and %s bugs under the branch will be removed from the plan at the same time, so still want to unassociate?";
+$lang->productplan->confirmRemoveStory = "After the branch of『%s』is unlinked, %s story under the branch will be removed from the plan at the same time, so still want to unassociate?";
 $lang->productplan->confirmRemoveBug   = "After the branch of『%s』is unlinked, %s bugs under the branch will be removed from the plan at the same time, so still want to unassociate?";
 
 $lang->productplan->id          = 'ID';
@@ -104,6 +105,7 @@ $lang->productplan->order       = "Order";
 $lang->productplan->deleted     = "Deleted";
 $lang->productplan->mailto      = "Mailto";
 $lang->productplan->planStatus  = "Status";
+$lang->productplan->storyTitle  = "Title";
 $lang->productplan->createdBy   = 'Created By';
 $lang->productplan->createdDate = 'Created Date';
 
diff --git a/module/productplan/lang/fr.php b/module/productplan/lang/fr.php
index 6ec80877fe..c6ecc1161f 100644
--- a/module/productplan/lang/fr.php
+++ b/module/productplan/lang/fr.php
@@ -78,8 +78,9 @@ $lang->productplan->projectNotEmpty    = $lang->projectCommon . ' cannot be empt
 $lang->productplan->nextStep           = "Next step";
 $lang->productplan->summary            = "Total: <strong>%s</strong>, Parents: <strong>%s</strong>, Children: <strong>%s</strong>，Independent: <strong>%s</strong>.";
 $lang->productplan->checkedSummary     = "Seleted: <strong>%total%</strong>, Parents: <strong>%parent%</strong>, Children: <strong>%child%</strong>, Independent: <strong>%independent%</strong>.";
-$lang->productplan->confirmChangePlan  = "After the branch of『%s』is unlinked, %s {$lang->SRCommon} and %s bugs under the branch will be removed from the plan at the same time, so still want to unassociate?";
-$lang->productplan->confirmRemoveStory = "After the branch of『%s』is unlinked, %s {$lang->SRCommon} under the branch will be removed from the plan at the same time, so still want to unassociate?";
+$lang->productplan->storySummary       = "Total: <strong>%s</strong> {$lang->ERCommon}s, <strong>%s</strong> {$lang->URCommon}s, <strong>%s</strong> {$lang->SRCommon}s on this page. Estimates <strong>%s</strong> h,  and Case Coverage: <strong>%s</strong>.";
+$lang->productplan->confirmChangePlan  = "After the branch of『%s』is unlinked, %s story and %s bugs under the branch will be removed from the plan at the same time, so still want to unassociate?";
+$lang->productplan->confirmRemoveStory = "After the branch of『%s』is unlinked, %s story under the branch will be removed from the plan at the same time, so still want to unassociate?";
 $lang->productplan->confirmRemoveBug   = "After the branch of『%s』is unlinked, %s bugs under the branch will be removed from the plan at the same time, so still want to unassociate?";
 
 $lang->productplan->id          = 'ID';
@@ -104,6 +105,7 @@ $lang->productplan->order       = "Order";
 $lang->productplan->deleted     = "Deleted";
 $lang->productplan->mailto      = "Mailto";
 $lang->productplan->planStatus  = "Status";
+$lang->productplan->storyTitle  = "Title";
 $lang->productplan->createdBy   = 'Created By';
 $lang->productplan->createdDate = 'Created Date';
 
diff --git a/module/productplan/lang/zh-cn.php b/module/productplan/lang/zh-cn.php
index a9fff12c47..cf28bacec0 100644
--- a/module/productplan/lang/zh-cn.php
+++ b/module/productplan/lang/zh-cn.php
@@ -40,12 +40,12 @@ $lang->productplan->batchUnlink       = "批量移除";
 $lang->productplan->batchClose        = "批量关闭";
 $lang->productplan->batchChangeStatus = "批量修改状态";
 $lang->productplan->unlinkAB          = "移除";
-$lang->productplan->linkStory         = "关联{$lang->SRCommon}";
-$lang->productplan->unlinkStory       = "移除{$lang->SRCommon}";
+$lang->productplan->linkStory         = "关联需求";
+$lang->productplan->unlinkStory       = "移除需求";
 $lang->productplan->unlinkStoryAB     = "移除";
-$lang->productplan->batchUnlinkStory  = "批量移除{$lang->SRCommon}";
-$lang->productplan->linkedStories     = $lang->SRCommon;
-$lang->productplan->unlinkedStories   = "未关联{$lang->SRCommon}";
+$lang->productplan->batchUnlinkStory  = "批量移除需求";
+$lang->productplan->linkedStories     = '需求';
+$lang->productplan->unlinkedStories   = "未关联需求";
 $lang->productplan->updateOrder       = '排序';
 $lang->productplan->createChildren    = "创建子计划";
 $lang->productplan->createExecution   = "创建{$lang->execution->common}";
@@ -65,7 +65,7 @@ $lang->productplan->expired          = "已过期";
 $lang->productplan->closedReason     = "关闭原因";
 
 $lang->productplan->confirmDelete      = "您确认删除该计划吗？";
-$lang->productplan->confirmUnlinkStory = "您确认移除该{$lang->SRCommon}吗？";
+$lang->productplan->confirmUnlinkStory = "您确认移除该需求吗？";
 $lang->productplan->confirmUnlinkBug   = "您确认移除该Bug吗？";
 $lang->productplan->confirmStart       = "您确认开始该计划吗？";
 $lang->productplan->confirmFinish      = "您确认完成该计划吗？";
@@ -78,8 +78,9 @@ $lang->productplan->projectNotEmpty    = "所属{$lang->projectCommon}不能为
 $lang->productplan->nextStep           = "下一步";
 $lang->productplan->summary            = "本页共 <strong>%s</strong> 个计划，父计划 <strong>%s</strong>，子计划 <strong>%s</strong>，独立计划 <strong>%s</strong>。";
 $lang->productplan->checkedSummary     = "共选中 <strong>%total%</strong> 个计划，父计划 <strong>%parent%</strong>，子计划 <strong>%child%</strong>，独立计划 <strong>%independent%</strong>。";
-$lang->productplan->confirmChangePlan  = "分支『%s』解除关联后，分支下的%s个{$lang->SRCommon}和%s个Bug将同步从计划中移除，是否解除？";
-$lang->productplan->confirmRemoveStory = "分支『%s』解除关联后，分支下的%s个{$lang->SRCommon}将同步从计划中移除，是否解除？";
+$lang->productplan->storySummary       = "本页共 <strong>%s</strong> 个{$lang->ERCommon}，<strong>%s</strong> 个{$lang->URCommon}， <strong>%s</strong> 个{$lang->SRCommon}，预计 <strong>%s</strong> 个工时， 用例覆盖率 <strong>%s</strong> 。";
+$lang->productplan->confirmChangePlan  = "分支『%s』解除关联后，分支下的%s个需求和%s个Bug将同步从计划中移除，是否解除？";
+$lang->productplan->confirmRemoveStory = "分支『%s』解除关联后，分支下的%s个需求将同步从计划中移除，是否解除？";
 $lang->productplan->confirmRemoveBug   = "分支『%s』解除关联后，分支下的%s个Bug将同步从计划中移除，是否解除？";
 
 $lang->productplan->id          = '编号';
@@ -90,20 +91,21 @@ $lang->productplan->desc        = '描述';
 $lang->productplan->begin       = '开始日期';
 $lang->productplan->end         = '结束日期';
 $lang->productplan->status      = '状态';
-$lang->productplan->last        = '上次计划';
+$lang->productplan->last        = "上次计划";
 $lang->productplan->future      = '待定';
-$lang->productplan->stories     = "{$lang->SRCommon}数";
+$lang->productplan->stories     = "需求数";
 $lang->productplan->bugs        = 'Bug数';
 $lang->productplan->hour        = $lang->hourCommon;
 $lang->productplan->execution   = $lang->execution->common;
-$lang->productplan->parent      = '父计划';
-$lang->productplan->parentAB    = '父';
-$lang->productplan->children    = '子计划';
-$lang->productplan->childrenAB  = '子';
-$lang->productplan->order       = '排序';
-$lang->productplan->deleted     = '已删除';
-$lang->productplan->mailto      = '抄送给';
-$lang->productplan->planStatus  = '状态';
+$lang->productplan->parent      = "父计划";
+$lang->productplan->parentAB    = "父";
+$lang->productplan->children    = "子计划";
+$lang->productplan->childrenAB  = "子";
+$lang->productplan->order       = "排序";
+$lang->productplan->deleted     = "已删除";
+$lang->productplan->mailto      = "抄送给";
+$lang->productplan->planStatus  = "状态";
+$lang->productplan->storyTitle  = "需求名称";
 $lang->productplan->createdBy   = '由谁创建';
 $lang->productplan->createdDate = '创建时间';
 
diff --git a/module/productplan/model.php b/module/productplan/model.php
index 029d3ed7cf..59b38418ab 100644
--- a/module/productplan/model.php
+++ b/module/productplan/model.php
@@ -133,7 +133,7 @@ class productplanModel extends model
 
             $bugCount = isset($bugs[$plan->id]) ? count($bugs[$plan->id]) : 0;
             $plan->bugs     = zget($plan, 'bugs', 0)    + $bugCount;
-            $plan->hour     = zget($plan, 'hour', 0)    + array_sum($storyPairs);
+            $plan->hour     = zget($plan, 'hour', 0)    + round(array_sum($storyPairs), 1);
             $plan->stories  = zget($plan, 'stories', 0) + count($storyPairs);
             $plan->projects = zget($planProjects, $plan->id, '');
             $plan->expired  = $plan->end < helper::today();
@@ -860,10 +860,12 @@ class productplanModel extends model
             if(strpos(",$story->plan,", ",{$planID},") !== false) continue;
 
             /* Update the plan linked with the story and the order of the story in the plan. */
-            $storyID = (int)$storyID;
-            $this->dao->update(TABLE_STORY)->set('plan')->eq($planID)->where('id')->eq($storyID)->exec();
+            $storyID   = (int)$storyID;
+            $newPlanID = $story->type == 'story' ? $planID : trim($story->plan, ',') . ',' . $planID;
+            $this->dao->update(TABLE_STORY)->set('plan')->eq($newPlanID)->where('id')->eq($storyID)->exec();
 
-            $this->story->updateStoryOrderOfPlan($storyID, (string)$planID, $story->plan);
+            $oldPlanID = $story->type == 'story' ? $story->plan : '';
+            $this->story->updateStoryOrderOfPlan($storyID, (string)$planID, $oldPlanID);
 
             $this->action->create('story', $storyID, 'linked2plan', '', $planID);
             $this->story->setStage($storyID);
diff --git a/module/productplan/ui/linkstory.html.php b/module/productplan/ui/linkstory.html.php
index e722649677..d4fff89c2d 100644
--- a/module/productplan/ui/linkstory.html.php
+++ b/module/productplan/ui/linkstory.html.php
@@ -13,8 +13,9 @@ namespace zin;
 $cols = array();
 foreach($config->productplan->defaultFields['linkStory'] as $field) $cols[$field] = zget($config->story->dtable->fieldList, $field, array());
 $cols = array_map(function($col){$col['show'] = true; return $col;}, $cols);
-$cols['title']['link']         = $this->createLink('story', 'view', "storyID={id}");
-$cols['title']['nestedToggle'] = false;
+$cols['title']['link']         = $this->createLink('story', 'storyView', "storyID={id}");
+$cols['title']['title']        = $lang->productplan->storyTitle;
+$cols['title']['nestedToggle'] = true;
 $cols['title']['data-toggle']  = 'modal';
 $cols['title']['data-size']    = 'lg';
 $cols['plan']['name']          = 'planTitle';
@@ -26,6 +27,7 @@ foreach($cols as $colKey => $colConfig) $cols[$colKey]['sort'] = true;
 
 foreach($allStories as $story) $story->estimate = $story->estimate . $config->hourUnit;
 
+$config->product->search['fields']['title'] = $lang->productplan->storyTitle;
 searchForm
 (
     set::module('story'),
diff --git a/module/productplan/ui/view.html.php b/module/productplan/ui/view.html.php
index ccb6b7d8bd..4d061c270a 100644
--- a/module/productplan/ui/view.html.php
+++ b/module/productplan/ui/view.html.php
@@ -37,6 +37,7 @@ jsVar('summary',         $summary);
 jsVar('checkedSummary',  $lang->product->checkedSRSummary);
 jsVar('storyPageID',     $storyPager->pageID);
 jsVar('storyRecPerPage', $storyPager->recPerPage);
+jsVar('gradeGroup',      $gradeGroup);
 
 $bugCols   = array();
 $storyCols = array();
@@ -56,8 +57,8 @@ foreach($config->productplan->defaultFields['story'] as $field)
 if(isset($storyCols['branch'])) $storyCols['branch']['map'] = $branchOption;
 foreach($config->productplan->defaultFields['bug'] as $field)   $bugCols[$field]   = zget($config->bug->dtable->fieldList, $field, array());
 
-$storyCols['title']['link']         = $this->createLink('story', 'view', "storyID={id}");
-$storyCols['title']['nestedToggle'] = false;
+$storyCols['title']['link']         = $this->createLink('story', 'storyView', "storyID={id}");
+$storyCols['title']['title']        = $lang->productplan->storyTitle;
 $storyCols['assignedTo']['type']    = 'user';
 $storyCols['module']['type']        = 'text';
 $storyCols['module']['map']         = $modulePairs;
@@ -153,8 +154,12 @@ $planStories = initTableData($planStories, $storyCols, $this->productplan);
 $planBugs    = initTableData($planBugs,    $bugCols,   $this->productplan);
 foreach($planStories as $story) $story->estimate = $story->estimate . $config->hourUnit;
 
-$createStoryLink      = common::hasPriv('story', 'create') ? $this->createLink('story', 'create', "productID=$plan->product&branch=$plan->branch&moduleID=0&storyID=0&projectID=$projectID&bugID=0&planID=$plan->id") : null;
-$batchCreateStoryLink = common::hasPriv('story', 'batchCreate') ? $this->createLink('story', 'batchCreate', "productID=$plan->product&branch=$plan->branch&moduleID=0&story=0&project=$projectID&plan={$plan->id}") : null;
+$createStoryLink            = common::hasPriv('story', 'create') ? $this->createLink('story', 'create', "productID=$plan->product&branch=$plan->branch&moduleID=0&storyID=0&projectID=$projectID&bugID=0&planID=$plan->id") : null;
+$batchCreateStoryLink       = common::hasPriv('story', 'batchCreate') ? $this->createLink('story', 'batchCreate', "productID=$plan->product&branch=$plan->branch&moduleID=0&story=0&project=$projectID&plan={$plan->id}") : null;
+$createRequirementLink      = common::hasPriv('requirement', 'create') ? $this->createLink('requirement', 'create', "productID=$plan->product&branch=$plan->branch&moduleID=0&storyID=0&projectID=$projectID&bugID=0&planID=$plan->id") : null;
+$batchCreateRequirementLink = common::hasPriv('requirement', 'batchCreate') ? $this->createLink('requirement', 'batchCreate', "productID=$plan->product&branch=$plan->branch&moduleID=0&story=0&project=$projectID&plan={$plan->id}") : null;
+$createEpicLink             = common::hasPriv('epic', 'create') ? $this->createLink('epic', 'create', "productID=$plan->product&branch=$plan->branch&moduleID=0&storyID=0&projectID=$projectID&bugID=0&planID=$plan->id") : null;
+$batchCreateEpicLink        = common::hasPriv('epic', 'batchCreate')  ? $this->createLink('epic', 'batchCreate', "productID=$plan->product&branch=$plan->branch&moduleID=0&story=0&project=$projectID&plan={$plan->id}") : null;
 
 $branchNames = '';
 if($product->type != 'normal')
@@ -236,7 +241,15 @@ detailBody
                             set::caret(true),
                             set::url($createStoryLink)
                         ),
-                        set::items(array(array('text' => $lang->story->batchCreate, 'url' => $batchCreateStoryLink, 'class' => empty($batchCreateStoryLink) ? 'disabled' : ''))),
+                        set::items(array(
+                            array('text' => $lang->requirement->create, 'url' => $createRequirementLink, 'class' => empty($createRequirementLink) ? 'disabled' : ''),
+                            array('text' => $lang->epic->create, 'url' => $createEpicLink, 'class' => empty($createEpicLink) ? 'disabled' : ''),
+                            array('text' => $lang->story->batchCreate, 'items' => array(
+                                array('text' => $lang->SRCommon, 'url' => $batchCreateStoryLink, 'class' => empty($batchCreateStoryLink) ? 'disabled' : ''),
+                                array('text' => $lang->URCommon, 'url' => $batchCreateRequirementLink, 'class' => empty($batchCreateRequirementLink) ? 'disabled' : ''),
+                                array('text' => $lang->ERCommon, 'url' => $batchCreateEpicLink, 'class' => empty($batchCreateEpicLink) ? 'disabled' : '')
+                            ))
+                        )),
                         set::trigger('hover'),
                         set::placement('bottom-end')
                     ),
@@ -265,7 +278,7 @@ detailBody
                     set::sortLink(createLink('productplan', 'view', "planID={$plan->id}&type=story&orderBy={name}_{sortType}&link=false&param={$param}&recTotal={$storyPager->recTotal}&recPerPage={$storyPager->recPerPage}&page={$storyPager->pageID}")),
                     set::orderBy($orderBy),
                     set::extraHeight('+144'),
-                    set::checkInfo(jsRaw('function(checkedIDList){return window.setStatistics(this, checkedIDList);}')),
+                    set::checkInfo(jsRaw("function(checkedIDList){return window.setStatistics(this, checkedIDList, '{$summary}');}")),
                     set::footPager
                     (
                         usePager('storyPager', '', array(
diff --git a/module/productplan/zen.php b/module/productplan/zen.php
index 2378f7dacd..bdbcb7b942 100644
--- a/module/productplan/zen.php
+++ b/module/productplan/zen.php
@@ -235,11 +235,16 @@ class productplanZen extends productplan
         if($plan->parent > 0)     $this->view->parentPlan    = $this->productplan->getById($plan->parent);
         if($plan->parent == '-1') $this->view->childrenPlans = $this->productplan->getChildren($plan->id);
 
-        $this->view->plan    = $plan;
-        $this->view->actions = $this->loadModel('action')->getList('productplan', $plan->id);
-        $this->view->users   = $this->loadModel('user')->getPairs('noletter');
-        $this->view->plans   = $this->productplan->getPairs($plan->product, $plan->branch, '', true);
-        $this->view->modules = $this->loadModel('tree')->getOptionMenu($plan->product);
+        $gradeList  = $this->loadModel('story')->getGradeList('');
+        $gradeGroup = array();
+        foreach($gradeList as $grade) $gradeGroup[$grade->type][$grade->grade] = $grade->name;
+
+        $this->view->plan       = $plan;
+        $this->view->gradeGroup = $gradeGroup;
+        $this->view->actions    = $this->loadModel('action')->getList('productplan', $plan->id);
+        $this->view->users      = $this->loadModel('user')->getPairs('noletter');
+        $this->view->plans      = $this->productplan->getPairs($plan->product, $plan->branch, '', true);
+        $this->view->modules    = $this->loadModel('tree')->getOptionMenu($plan->product);
 
         if($this->app->getViewType() == 'json')
         {
@@ -267,6 +272,7 @@ class productplanZen extends productplan
         $this->config->product->search['actionURL'] = $this->createLink('productplan', 'view', "planID=$plan->id&type=story&orderBy=$orderBy&link=true&param=" . helper::safe64Encode('&browseType=bySearch&queryID=myQueryID'));
         $this->config->product->search['queryID']   = $queryID;
         $this->config->product->search['style']     = 'simple';
+        $this->config->product->search['fields']['title']             = $this->lang->productplan->storyTitle;
         $this->config->product->search['params']['product']['values'] = $products + array('all' => $this->lang->product->allProductsOfProject);
         $this->config->product->search['params']['plan']['values']    = $this->productplan->getPairs($plan->product, $plan->branch, 'withMainPlan', true);
         $this->config->product->search['params']['module']['values']  = $this->loadModel('tree')->getOptionMenu($plan->product, 'story', 0, 'all');
@@ -288,6 +294,8 @@ class productplanZen extends productplan
             $this->config->product->search['params']['branch']['values'] = array('' => '', BRANCH_MAIN => $this->lang->branch->main) + $branches;
         }
 
+        unset($this->config->product->search['fields']['grade']);
+        unset($this->config->product->search['params']['grade']);
         unset($this->config->product->search['fields']['product']);
         $this->loadModel('search')->setSearchParams($this->config->product->search);
     }
@@ -333,4 +341,76 @@ class productplanZen extends productplan
         }
         $this->loadModel('search')->setSearchParams($this->config->bug->search);
     }
+
+    /**
+     * 构造需求列表的摘要信息。
+     * Get the summary of product's stories.
+     *
+     * @param  array  $stories
+     * @access public
+     * @return string
+     */
+    public function buildViewSummary(array $stories): string
+    {
+        $totalEstimate = 0.0;
+        $storyIdList   = array();
+
+        $rateCount = 0;
+        $SRTotal   = 0;
+        $URTotal   = 0;
+        $ERTotal   = 0;
+
+        foreach($stories as $story)
+        {
+            if($story->type == 'story')       $SRTotal += 1;
+            if($story->type == 'requirement') $URTotal += 1;
+            if($story->type == 'epic')        $ERTotal += 1;
+
+            if($story->isParent == '0') $totalEstimate += $story->estimate;
+
+            if($story->type != 'story') continue;
+            if($story->isParent == '0' && ($story->status != 'closed' || in_array($story->closedReason, array('done', 'postponed'))))
+            {
+                $storyIdList[] = $story->id;
+                $rateCount ++;
+            }
+        }
+
+        $casesCount = count($this->loadModel('product')->filterNoCasesStory($storyIdList));
+        $rate       = empty($stories) || $rateCount == 0 ? 0 : round($casesCount / $rateCount, 2);
+
+        return sprintf($this->lang->productplan->storySummary, $ERTotal, $URTotal, $SRTotal, $totalEstimate, $rate * 100 . "%");
+    }
+
+    /**
+     * 构造计划详情页面的操作菜单。
+     * Build operate menu for plan detail page.
+     *
+     * @param  object $plan
+     * @access public
+     * @return array
+     */
+    public function buildViewActions(object $plan): array
+    {
+        $params = "planID=$plan->id";
+
+        $canEdit        = common::hasPriv('productplan', 'edit');
+        $canStart       = common::hasPriv('productplan', 'start')    && $this->productplan->isClickable($plan, 'start');
+        $canFinish      = common::hasPriv('productplan', 'finish')   && $this->productplan->isClickable($plan, 'finish');
+        $canClose       = common::hasPriv('productplan', 'close')    && $this->productplan->isClickable($plan, 'close');
+        $canActivate    = common::hasPriv('productplan', 'activate') && $this->productplan->isClickable($plan, 'activate');
+        $canCreateChild = common::hasPriv('productplan', 'create')   && $this->productplan->isClickable($plan, 'create');
+        $canDelete      = common::hasPriv('productplan', 'delete')   && $this->productplan->isClickable($plan, 'delete');
+
+        $menu = array();
+        if($canStart)       $menu[] = array('icon' => 'play text-primary',    'class' => 'ghost', 'text' => $this->lang->productplan->startAB,    'data-url' => helper::createLink('productplan', 'start', $params), 'data-action' => 'start', 'onclick' => 'ajaxConfirmLoad(this)');
+        if($canFinish)      $menu[] = array('icon' => 'checked text-primary', 'class' => 'ghost', 'text' => $this->lang->productplan->finishAB,   'data-url' => helper::createLink('productplan', 'finish', $params), 'data-action' => 'finish', 'onclick' => 'ajaxConfirmLoad(this)');
+        if($canClose)       $menu[] = array('icon' => 'off text-primary',     'class' => 'ghost', 'text' => $this->lang->productplan->closeAB,    'url' => helper::createLink('productplan', 'close', $params, '', true), 'data-toggle' => 'modal');
+        if($canActivate)    $menu[] = array('icon' => 'magic text-primary',   'class' => 'ghost', 'text' => $this->lang->productplan->activateAB, 'data-url' => helper::createLink('productplan', 'activate', $params), 'data-action' => 'activate', 'onclick' => 'ajaxConfirmLoad(this)');
+        if($canCreateChild) $menu[] = array('icon' => 'split text-primary',   'class' => 'ghost', 'text' => $this->lang->productplan->children,   'url' => helper::createLink('productplan', 'create', "product={$plan->product}&branch={$plan->branch}&parent={$plan->id}"));
+        if($canEdit)        $menu[] = array('icon' => 'edit text-primary',    'class' => 'ghost', 'text' => $this->lang->edit,                    'url' => helper::createLink('productplan', 'edit', $params));
+        if($canDelete)      $menu[] = array('icon' => 'trash text-primary',   'class' => 'ghost', 'text' => $this->lang->delete,                  'data-url' => helper::createLink('productplan', 'delete', $params), 'data-action' => 'delete', 'onclick' => 'ajaxConfirmLoad(this)');
+
+        return $menu;
+    }
 }
diff --git a/module/project/config.php b/module/project/config.php
index e3568e75d3..74b9e768be 100755
--- a/module/project/config.php
+++ b/module/project/config.php
@@ -108,23 +108,25 @@ $config->project->noSprintPriv['story']      = array('create', 'batchCreate', 'e
 $config->project->noSprintPriv['bug']        = array('create', 'confirm', 'view', 'edit', 'assignTo', 'batchAssignTo', 'resolve', 'activate', 'close', 'export', 'confirmStoryChange', 'delete', 'linkBugs', 'import', 'showImport', 'exportTemplate');
 $config->project->noSprintPriv['testcase']   = array('groupCase', 'create', 'batchCreate', 'createBug', 'view', 'edit', 'delete', 'export', 'confirmChange', 'confirmStoryChange', 'batchEdit', 'batchDelete', 'linkCases', 'bugs', 'review', 'batchReview', 'batchConfirmStoryChange', 'importFromLib', 'batchChangeType', 'exportTemplate', 'import', 'showImport', 'confirmLibcaseChange', 'ignoreLibcaseChange', 'submit');
 $config->project->noSprintPriv['testtask']   = array('create', 'cases', 'groupCase', 'edit', 'delete', 'batchAssign', 'linkcase', 'unlinkcase', 'runcase', 'results', 'batchUnlinkCases', 'report', 'browseUnits', 'unitCases', 'importUnitResult', 'batchRun', 'runDeployCase', 'deployCaseResults');
-$config->project->includedPriv['doc']        = array('createLib', 'editLib', 'deleteLib', 'create', 'edit', 'view', 'delete', 'deleteFile', 'collect', 'projectSpace', 'showFiles', 'addCatalog', 'editCatalog', 'deleteCatalog', 'displaySetting', 'diff', 'importToPracticeLib', 'importToComponentLib');
+$config->project->noSprintPriv['doc']        = array('createLib', 'editLib', 'deleteLib', 'create', 'edit', 'view', 'delete', 'deleteFile', 'collect', 'projectSpace', 'showFiles', 'addCatalog', 'editCatalog', 'deleteCatalog', 'displaySetting', 'diff', 'importToPracticeLib', 'importToComponentLib');
 $config->project->noSprintPriv['repo']       = array('create', 'showSyncCommit', 'browse', 'view', 'diff', 'log', 'revision', 'blame', 'download', 'apiGetRepoByUrl', 'review', 'addBug', 'editBug', 'deleteBug', 'addComment', 'editComment', 'deleteComment');
 $config->project->noSprintPriv['testreport'] = array('create', 'view', 'delete', 'edit', 'export');
 $config->project->noSprintPriv['auditplan']  = array('browse', 'create', 'edit', 'batchCreate', 'batchCheck', 'check', 'nc', 'result', 'assignTo');
 
 $config->project->includedPriv = $config->project->noSprintPriv;
-$config->project->includedPriv['project'][]  = 'execution';
-$config->project->includedPriv['task']       = array('create');
-$config->project->includedPriv['story']      = array('create', 'batchCreate', 'edit', 'export', 'delete', 'view', 'change', 'review', 'batchReview', 'recall', 'close', 'batchClose', 'batchChangePlan', 'batchChangeStage', 'assignTo', 'batchAssignTo', 'activate', 'zeroCase', 'batchEdit', 'import', 'showImport', 'exportTemplate', 'importToLib', 'batchImportToLib', 'relation', 'browse');
-$config->project->includedPriv['bug']        = array('create', 'confirm', 'view', 'edit', 'assignTo', 'batchAssignTo', 'resolve', 'activate', 'close', 'export', 'confirmStoryChange', 'delete', 'linkBugs', 'import', 'showImport', 'exportTemplate');
-$config->project->includedPriv['testcase']   = array('groupCase', 'create', 'batchCreate', 'createBug', 'view', 'edit', 'delete', 'export', 'confirmChange', 'confirmStoryChange', 'batchEdit', 'batchDelete', 'linkCases', 'bugs', 'review', 'batchReview', 'batchConfirmStoryChange', 'importFromLib', 'batchChangeType', 'exportTemplate', 'import', 'showImport', 'confirmLibcaseChange', 'ignoreLibcaseChange', 'submit');
-$config->project->includedPriv['testtask']   = array('create', 'cases', 'groupCase', 'edit', 'delete', 'batchAssign', 'linkcase', 'unlinkcase', 'runcase', 'results', 'batchUnlinkCases', 'report', 'browseUnits', 'unitCases', 'importUnitResult', 'batchRun', 'runDeployCase', 'deployCaseResults');
-$config->project->includedPriv['doc']        = array('createLib', 'editLib', 'deleteLib', 'create', 'edit', 'view', 'delete', 'deleteFile', 'collect', 'projectSpace', 'showFiles', 'addCatalog', 'editCatalog', 'deleteCatalog', 'displaySetting', 'diff', 'importToPracticeLib', 'importToComponentLib');
-$config->project->includedPriv['repo']       = array('create', 'showSyncCommit', 'browse', 'view', 'diff', 'log', 'revision', 'blame', 'download', 'apiGetRepoByUrl', 'review', 'addBug', 'deleteBug', 'addComment', 'editComment', 'deleteComment');
-$config->project->includedPriv['testreport'] = array('create', 'view', 'delete', 'edit', 'export');
-$config->project->includedPriv['auditplan']  = array('browse', 'create', 'edit', 'batchCreate', 'batchCheck', 'check', 'nc', 'result', 'assignTo');
-$config->project->includedPriv['execution']  = array('create', 'start', 'delete', 'calendar', 'effortCalendar', 'effort', 'taskEffort', 'computeTaskEffort', 'deleterelation', 'maintainrelation', 'relation', 'gantt');
+$config->project->includedPriv['project'][]   = 'execution';
+$config->project->includedPriv['task']        = array('create');
+$config->project->includedPriv['story']       = array('create', 'batchCreate', 'edit', 'delete', 'view', 'change', 'review', 'recall', 'close', 'batchChangeStage', 'assignTo', 'activate', 'zeroCase', 'importToLib', 'batchImportToLib');
+$config->project->includedPriv['requirement'] = array('create', 'batchCreate', 'edit', 'delete', 'view', 'change', 'review', 'recall', 'close', 'assignTo', 'activate');
+$config->project->includedPriv['epic']        = array('create', 'batchCreate', 'edit', 'delete', 'view', 'change', 'review', 'recall', 'close', 'assignTo', 'activate');
+$config->project->includedPriv['bug']         = array('create', 'confirm', 'view', 'edit', 'assignTo', 'batchAssignTo', 'resolve', 'activate', 'close', 'export', 'confirmStoryChange', 'delete', 'linkBugs', 'import', 'showImport', 'exportTemplate');
+$config->project->includedPriv['testcase']    = array('groupCase', 'create', 'batchCreate', 'createBug', 'view', 'edit', 'delete', 'export', 'confirmChange', 'confirmStoryChange', 'batchEdit', 'batchDelete', 'linkCases', 'bugs', 'review', 'batchReview', 'batchConfirmStoryChange', 'importFromLib', 'batchChangeType', 'exportTemplate', 'import', 'showImport', 'confirmLibcaseChange', 'ignoreLibcaseChange', 'submit');
+$config->project->includedPriv['testtask']    = array('create', 'cases', 'groupCase', 'edit', 'delete', 'batchAssign', 'linkcase', 'unlinkcase', 'runcase', 'results', 'batchUnlinkCases', 'report', 'browseUnits', 'unitCases', 'importUnitResult', 'batchRun', 'runDeployCase', 'deployCaseResults');
+$config->project->includedPriv['doc']         = array('createLib', 'editLib', 'deleteLib', 'create', 'edit', 'view', 'delete', 'deleteFile', 'collect', 'projectSpace', 'showFiles', 'addCatalog', 'editCatalog', 'deleteCatalog', 'displaySetting', 'diff', 'importToPracticeLib', 'importToComponentLib');
+$config->project->includedPriv['repo']        = array('create', 'showSyncCommit', 'browse', 'view', 'diff', 'log', 'revision', 'blame', 'download', 'apiGetRepoByUrl', 'review', 'addBug', 'deleteBug', 'addComment', 'editComment', 'deleteComment');
+$config->project->includedPriv['testreport']  = array('create', 'view', 'delete', 'edit', 'export');
+$config->project->includedPriv['auditplan']   = array('browse', 'create', 'edit', 'batchCreate', 'batchCheck', 'check', 'nc', 'result', 'assignTo');
+$config->project->includedPriv['execution']   = array('create', 'start', 'delete', 'calendar', 'effortCalendar', 'effort', 'taskEffort', 'computeTaskEffort', 'deleterelation', 'maintainrelation', 'relation', 'gantt');
 if($config->edition != 'max') $config->project->includedPriv['stakeholder'] = array('browse', 'create', 'batchCreate', 'edit', 'delete', 'view', 'communicate', 'expect', 'expectation', 'deleteExpect', 'createExpect', 'editExpect', 'viewExpect');
 
 $config->project->browseTable = new stdClass();
diff --git a/module/project/config/form.php b/module/project/config/form.php
index ed47a35864..cb47b1eeda 100755
--- a/module/project/config/form.php
+++ b/module/project/config/form.php
@@ -26,6 +26,7 @@ $config->project->form->create['desc']       = array('type' => 'string', 'requir
 $config->project->form->create['acl']        = array('type' => 'string', 'required' => false, 'default' => '');
 $config->project->form->create['whitelist']  = array('type' => 'array',  'required' => false, 'default' => '');
 $config->project->form->create['auth']       = array('type' => 'array',  'required' => false, 'default' => '');
+$config->project->form->create['storyType']  = array('type' => 'array',  'required' => false, 'default' => '');
 $config->project->form->create['model']      = array('type' => 'string', 'required' => false, 'default' => '');
 $config->project->form->create['vision']     = array('type' => 'string', 'required' => false, 'default' => $config->vision);
 if(isset($this->config->setCode) && $this->config->setCode == 1) $config->project->form->create['code'] = array('type' => 'string', 'required' => false,  'filter'  => 'trim');
diff --git a/module/project/control.php b/module/project/control.php
index 62bf71279f..bda15e8e3e 100755
--- a/module/project/control.php
+++ b/module/project/control.php
@@ -1604,6 +1604,27 @@ class project extends control
         }
     }
 
+    /**
+     * 判断项目下是否有对应概念的需求。
+     * AJAX: check if the project has the concept of story.
+     *
+     * @param  string $projectID
+     * @param  string $storyType
+     * @access public
+     * @return bool
+     */
+    public function ajaxGetStoryByType($projectID, $storyType)
+    {
+        $story = $this->dao->select('t1.id')->from(TABLE_STORY)->alias('t1')
+            ->leftJoin(TABLE_PROJECTSTORY)->alias('t2')->on('t1.id = t2.story')
+            ->where('t1.deleted')->eq(0)
+            ->andWhere('t2.project')->eq($projectID)
+            ->andWhere('t1.type')->eq($storyType)
+            ->fetch('id');
+
+        return print(!empty($story));
+    }
+
     /**
      * Ajax get product drop menu.
      *
diff --git a/module/project/js/common.ui.js b/module/project/js/common.ui.js
index f55237ff4d..64ad7a64bb 100644
--- a/module/project/js/common.ui.js
+++ b/module/project/js/common.ui.js
@@ -19,10 +19,12 @@ function changeType()
     {
         $('.productsBox').addClass('hidden');
         $('.stageByBox').addClass('hidden');
+        $('[data-name=storyType]').addClass('hidden');
     }
     else
     {
         $('.productsBox').removeClass('hidden');
+        $('[data-name=storyType]').removeClass('hidden');
     }
 }
 
diff --git a/module/project/js/create.ui.js b/module/project/js/create.ui.js
index 202addad40..8e8235ab8d 100644
--- a/module/project/js/create.ui.js
+++ b/module/project/js/create.ui.js
@@ -49,3 +49,15 @@ $(document).on('keyup', '#projectName', function()
         if($(this).text().includes(name) || $(this).data('pinyin').includes(name)) $(this).show();
     });
 });
+
+window.toggleStoryType = function(e)
+{
+    if(e.target.value == 'requirement' && !e.target.checked)
+    {
+        $('input[value=epic]').prop('checked', false);
+    }
+    else if(e.target.value == 'epic' && e.target.checked)
+    {
+        $('input[value=requirement]').prop('checked', true);
+    }
+}
diff --git a/module/project/js/edit.ui.js b/module/project/js/edit.ui.js
index 535b476f13..8ac2d3158b 100644
--- a/module/project/js/edit.ui.js
+++ b/module/project/js/edit.ui.js
@@ -16,3 +16,35 @@ $(document).on('click', '.model-drop', function()
     $('#project-model').addClass(btnClass);
     $('#model').val(model);
 })
+
+window.toggleStoryType = function(e)
+{
+    if(!e.target.checked)
+    {
+        const link = $.createLink('project', 'ajaxGetStoryByType', 'projectID=' + currentProject + '&storyType=' + e.target.value)
+        $.get(link, function(data)
+        {
+            if(data)
+            {
+                zui.Modal.confirm(confirmDisableStoryType).then((res) => {
+                    if(!res)
+                    {
+                        if(storyType.includes('epic'))        $('input[value=epic]').prop('checked', true);
+                        if(storyType.includes('requirement')) $('input[value=requirement]').prop('checked', true);
+                        return false;
+                    }
+                })
+            }
+        });
+
+        if(e.target.value == 'requirement')
+        {
+            $('input[value=epic]').prop('checked', false);
+        }
+    }
+
+    if(e.target.value == 'epic' && e.target.checked)
+    {
+        $('input[value=requirement]').prop('checked', true);
+    }
+}
diff --git a/module/project/lang/de.php b/module/project/lang/de.php
index 6b21e81caa..fc7c053fa1 100644
--- a/module/project/lang/de.php
+++ b/module/project/lang/de.php
@@ -77,6 +77,7 @@ $lang->project->manageRepo          = 'Manage Repo';
 $lang->project->linkedRepo          = 'Link Repo';
 $lang->project->unlinkedRepo        = 'Unlink Repo';
 $lang->project->executionCount      = 'Total Executions';
+$lang->project->storyType           = 'Link Story Concept';
 $lang->project->storyCount          = 'Story Count';
 $lang->project->storyPoints         = 'Story Points';
 $lang->project->invested            = 'Invested';
@@ -425,15 +426,16 @@ $lang->project->programTitle['0']    = 'Hidden';
 $lang->project->programTitle['base'] = "Base-level {$lang->projectCommon} only";
 $lang->project->programTitle['end']  = "End-level {$lang->projectCommon} only";
 
-$lang->project->accessDenied         = "Access denied to this {$lang->projectCommon}";
-$lang->project->chooseProgramType    = 'Select management type';
-$lang->project->cannotCreateChild    = "The {$lang->projectCommon} has contents, so you cannot add a child {$lang->projectCommon}. You can create a parent project for this one and then add a child {$lang->projectCommon} for the parent {$lang->projectCommon}.";
-$lang->project->hasChildren          = "This {$lang->projectCommon} has a child {$lang->projectCommon}, so it cannot be deleted.";
-$lang->project->confirmDelete        = 'Do you want to delete \"%s\"?';
-$lang->project->cannotChangeToCat    = "The {$lang->projectCommon} has contents, so you cannot it to a parent {$lang->projectCommon}.";
-$lang->project->cannotCancelCat      = "There are child {$lang->projectCommon}s of this {$lang->projectCommon}. You cannot cancel the parent {$lang->projectCommon} mark.";
-$lang->project->parentBeginEnd       = "The begin and end date of the parent {$lang->projectCommon}: %s ~ %s";
-$lang->project->parentBudget         = "The budget of the parent program: ";
+$lang->project->accessDenied            = "Access denied to this {$lang->projectCommon}";
+$lang->project->chooseProgramType       = 'Select management type';
+$lang->project->cannotCreateChild       = "The {$lang->projectCommon} has contents, so you cannot add a child {$lang->projectCommon}. You can create a parent project for this one and then add a child {$lang->projectCommon} for the parent {$lang->projectCommon}.";
+$lang->project->hasChildren             = "This {$lang->projectCommon} has a child {$lang->projectCommon}, so it cannot be deleted.";
+$lang->project->confirmDelete           = 'Do you want to delete \"%s\"?';
+$lang->project->confirmDisableStoryType = "After cancellation, all corresponding conceptual requirements that have been associated with the project and execution will be removed, and the operation is irreversible.";
+$lang->project->cannotChangeToCat       = "The {$lang->projectCommon} has contents, so you cannot it to a parent {$lang->projectCommon}.";
+$lang->project->cannotCancelCat         = "There are child {$lang->projectCommon}s of this {$lang->projectCommon}. You cannot cancel the parent {$lang->projectCommon} mark.";
+$lang->project->parentBeginEnd          = "The begin and end date of the parent {$lang->projectCommon}: %s ~ %s";
+$lang->project->parentBudget            = "The budget of the parent program: ";
 
 $lang->project->beginLessThanParent     = "The start date of the {$lang->projectCommon} is < the start date of the parent program: %s. ";
 $lang->project->endGreatThanParent      = "The finish date of the {$lang->projectCommon} is > the finish date of the parent program: %s. ";
diff --git a/module/project/lang/en.php b/module/project/lang/en.php
index 6b21e81caa..fc7c053fa1 100644
--- a/module/project/lang/en.php
+++ b/module/project/lang/en.php
@@ -77,6 +77,7 @@ $lang->project->manageRepo          = 'Manage Repo';
 $lang->project->linkedRepo          = 'Link Repo';
 $lang->project->unlinkedRepo        = 'Unlink Repo';
 $lang->project->executionCount      = 'Total Executions';
+$lang->project->storyType           = 'Link Story Concept';
 $lang->project->storyCount          = 'Story Count';
 $lang->project->storyPoints         = 'Story Points';
 $lang->project->invested            = 'Invested';
@@ -425,15 +426,16 @@ $lang->project->programTitle['0']    = 'Hidden';
 $lang->project->programTitle['base'] = "Base-level {$lang->projectCommon} only";
 $lang->project->programTitle['end']  = "End-level {$lang->projectCommon} only";
 
-$lang->project->accessDenied         = "Access denied to this {$lang->projectCommon}";
-$lang->project->chooseProgramType    = 'Select management type';
-$lang->project->cannotCreateChild    = "The {$lang->projectCommon} has contents, so you cannot add a child {$lang->projectCommon}. You can create a parent project for this one and then add a child {$lang->projectCommon} for the parent {$lang->projectCommon}.";
-$lang->project->hasChildren          = "This {$lang->projectCommon} has a child {$lang->projectCommon}, so it cannot be deleted.";
-$lang->project->confirmDelete        = 'Do you want to delete \"%s\"?';
-$lang->project->cannotChangeToCat    = "The {$lang->projectCommon} has contents, so you cannot it to a parent {$lang->projectCommon}.";
-$lang->project->cannotCancelCat      = "There are child {$lang->projectCommon}s of this {$lang->projectCommon}. You cannot cancel the parent {$lang->projectCommon} mark.";
-$lang->project->parentBeginEnd       = "The begin and end date of the parent {$lang->projectCommon}: %s ~ %s";
-$lang->project->parentBudget         = "The budget of the parent program: ";
+$lang->project->accessDenied            = "Access denied to this {$lang->projectCommon}";
+$lang->project->chooseProgramType       = 'Select management type';
+$lang->project->cannotCreateChild       = "The {$lang->projectCommon} has contents, so you cannot add a child {$lang->projectCommon}. You can create a parent project for this one and then add a child {$lang->projectCommon} for the parent {$lang->projectCommon}.";
+$lang->project->hasChildren             = "This {$lang->projectCommon} has a child {$lang->projectCommon}, so it cannot be deleted.";
+$lang->project->confirmDelete           = 'Do you want to delete \"%s\"?';
+$lang->project->confirmDisableStoryType = "After cancellation, all corresponding conceptual requirements that have been associated with the project and execution will be removed, and the operation is irreversible.";
+$lang->project->cannotChangeToCat       = "The {$lang->projectCommon} has contents, so you cannot it to a parent {$lang->projectCommon}.";
+$lang->project->cannotCancelCat         = "There are child {$lang->projectCommon}s of this {$lang->projectCommon}. You cannot cancel the parent {$lang->projectCommon} mark.";
+$lang->project->parentBeginEnd          = "The begin and end date of the parent {$lang->projectCommon}: %s ~ %s";
+$lang->project->parentBudget            = "The budget of the parent program: ";
 
 $lang->project->beginLessThanParent     = "The start date of the {$lang->projectCommon} is < the start date of the parent program: %s. ";
 $lang->project->endGreatThanParent      = "The finish date of the {$lang->projectCommon} is > the finish date of the parent program: %s. ";
diff --git a/module/project/lang/fr.php b/module/project/lang/fr.php
index 6b21e81caa..fc7c053fa1 100644
--- a/module/project/lang/fr.php
+++ b/module/project/lang/fr.php
@@ -77,6 +77,7 @@ $lang->project->manageRepo          = 'Manage Repo';
 $lang->project->linkedRepo          = 'Link Repo';
 $lang->project->unlinkedRepo        = 'Unlink Repo';
 $lang->project->executionCount      = 'Total Executions';
+$lang->project->storyType           = 'Link Story Concept';
 $lang->project->storyCount          = 'Story Count';
 $lang->project->storyPoints         = 'Story Points';
 $lang->project->invested            = 'Invested';
@@ -425,15 +426,16 @@ $lang->project->programTitle['0']    = 'Hidden';
 $lang->project->programTitle['base'] = "Base-level {$lang->projectCommon} only";
 $lang->project->programTitle['end']  = "End-level {$lang->projectCommon} only";
 
-$lang->project->accessDenied         = "Access denied to this {$lang->projectCommon}";
-$lang->project->chooseProgramType    = 'Select management type';
-$lang->project->cannotCreateChild    = "The {$lang->projectCommon} has contents, so you cannot add a child {$lang->projectCommon}. You can create a parent project for this one and then add a child {$lang->projectCommon} for the parent {$lang->projectCommon}.";
-$lang->project->hasChildren          = "This {$lang->projectCommon} has a child {$lang->projectCommon}, so it cannot be deleted.";
-$lang->project->confirmDelete        = 'Do you want to delete \"%s\"?';
-$lang->project->cannotChangeToCat    = "The {$lang->projectCommon} has contents, so you cannot it to a parent {$lang->projectCommon}.";
-$lang->project->cannotCancelCat      = "There are child {$lang->projectCommon}s of this {$lang->projectCommon}. You cannot cancel the parent {$lang->projectCommon} mark.";
-$lang->project->parentBeginEnd       = "The begin and end date of the parent {$lang->projectCommon}: %s ~ %s";
-$lang->project->parentBudget         = "The budget of the parent program: ";
+$lang->project->accessDenied            = "Access denied to this {$lang->projectCommon}";
+$lang->project->chooseProgramType       = 'Select management type';
+$lang->project->cannotCreateChild       = "The {$lang->projectCommon} has contents, so you cannot add a child {$lang->projectCommon}. You can create a parent project for this one and then add a child {$lang->projectCommon} for the parent {$lang->projectCommon}.";
+$lang->project->hasChildren             = "This {$lang->projectCommon} has a child {$lang->projectCommon}, so it cannot be deleted.";
+$lang->project->confirmDelete           = 'Do you want to delete \"%s\"?';
+$lang->project->confirmDisableStoryType = "After cancellation, all corresponding conceptual requirements that have been associated with the project and execution will be removed, and the operation is irreversible.";
+$lang->project->cannotChangeToCat       = "The {$lang->projectCommon} has contents, so you cannot it to a parent {$lang->projectCommon}.";
+$lang->project->cannotCancelCat         = "There are child {$lang->projectCommon}s of this {$lang->projectCommon}. You cannot cancel the parent {$lang->projectCommon} mark.";
+$lang->project->parentBeginEnd          = "The begin and end date of the parent {$lang->projectCommon}: %s ~ %s";
+$lang->project->parentBudget            = "The budget of the parent program: ";
 
 $lang->project->beginLessThanParent     = "The start date of the {$lang->projectCommon} is < the start date of the parent program: %s. ";
 $lang->project->endGreatThanParent      = "The finish date of the {$lang->projectCommon} is > the finish date of the parent program: %s. ";
diff --git a/module/project/lang/zh-cn.php b/module/project/lang/zh-cn.php
index abdbbdb57f..280751adf6 100644
--- a/module/project/lang/zh-cn.php
+++ b/module/project/lang/zh-cn.php
@@ -77,6 +77,7 @@ $lang->project->manageRepo          = '关联代码库';
 $lang->project->linkedRepo          = '已关联代码库';
 $lang->project->unlinkedRepo        = '未关联代码库';
 $lang->project->executionCount      = '执行数';
+$lang->project->storyType           = '关联需求概念';
 $lang->project->storyCount          = '需求条目数';
 $lang->project->storyPoints         = '需求规模';
 $lang->project->invested            = '已投入';
@@ -425,15 +426,16 @@ $lang->project->programTitle['0']    = '不显示';
 $lang->project->programTitle['base'] = '只显示一级项目集';
 $lang->project->programTitle['end']  = '只显示最后一级项目集';
 
-$lang->project->accessDenied         = "您无权访问该{$lang->projectCommon}！";
-$lang->project->chooseProgramType    = "选择{$lang->projectCommon}管理方式";
-$lang->project->cannotCreateChild    = "该{$lang->projectCommon}已经有实际的内容，无法直接添加子{$lang->projectCommon}。您可以为当前{$lang->projectCommon}创建一个父{$lang->projectCommon}，然后在新的父{$lang->projectCommon}下面添加子{$lang->projectCommon}。";
-$lang->project->hasChildren          = "该{$lang->projectCommon}有子{$lang->projectCommon}存在，不能删除。";
-$lang->project->confirmDelete        = "您确定删除{$lang->projectCommon}“%s”吗？";
-$lang->project->cannotChangeToCat    = "该{$lang->projectCommon}已经有实际的内容，无法修改为父{$lang->projectCommon}";
-$lang->project->cannotCancelCat      = "该{$lang->projectCommon}下已经有子{$lang->projectCommon}，无法取消父{$lang->projectCommon}标记";
-$lang->project->parentBeginEnd       = "父{$lang->projectCommon}起止时间：%s ~ %s";
-$lang->project->parentBudget         = "父项目集预算：";
+$lang->project->accessDenied            = "您无权访问该{$lang->projectCommon}！";
+$lang->project->chooseProgramType       = "选择{$lang->projectCommon}管理方式";
+$lang->project->cannotCreateChild       = "该{$lang->projectCommon}已经有实际的内容，无法直接添加子{$lang->projectCommon}。您可以为当前{$lang->projectCommon}创建一个父{$lang->projectCommon}，然后在新的父{$lang->projectCommon}下面添加子{$lang->projectCommon}。";
+$lang->project->hasChildren             = "该{$lang->projectCommon}有子{$lang->projectCommon}存在，不能删除。";
+$lang->project->confirmDelete           = "您确定删除{$lang->projectCommon}“%s”吗？";
+$lang->project->confirmDisableStoryType = "取消后会将项目和执行内已经关联的相应概念需求全部移除，操作不可逆。";
+$lang->project->cannotChangeToCat       = "该{$lang->projectCommon}已经有实际的内容，无法修改为父{$lang->projectCommon}";
+$lang->project->cannotCancelCat         = "该{$lang->projectCommon}下已经有子{$lang->projectCommon}，无法取消父{$lang->projectCommon}标记";
+$lang->project->parentBeginEnd          = "父{$lang->projectCommon}起止时间：%s ~ %s";
+$lang->project->parentBudget            = "父项目集预算：";
 
 $lang->project->beginLessThanParent     = "{$lang->projectCommon}的开始日期小于了父项目集的开始日期：%s。";
 $lang->project->endGreatThanParent      = "{$lang->projectCommon}的完成日期大于了父项目集的完成日期：%s。";
diff --git a/module/project/model.php b/module/project/model.php
index 788a5732fd..98e83abb29 100755
--- a/module/project/model.php
+++ b/module/project/model.php
@@ -529,15 +529,11 @@ class projectModel extends model
     public function getStatData($projectID)
     {
         $executions = $this->loadModel('execution')->getPairs($projectID);
-        $storyTypeCount = $this->dao->select('count(t2.story) as storyCount,t1.type')->from(TABLE_STORY)->alias('t1')
+        $storyCount = $this->dao->select('count(t2.story) as storyCount')->from(TABLE_STORY)->alias('t1')
             ->leftJoin(TABLE_PROJECTSTORY)->alias('t2')->on('t1.id = t2.story')
             ->where('t2.project')->eq($projectID)
             ->andWhere('t1.deleted')->eq(0)
-            ->groupBy('t1.type')
-            ->fetchPairs('type', 'storyCount');
-
-        $storyCount       = isset($storyTypeCount['story']) ? $storyTypeCount['story'] : 0;
-        $requirementCount = isset($storyTypeCount['requirement']) ? $storyTypeCount['requirement'] : 0;
+            ->fetch('storyCount');
 
         $bugCount = $this->dao->select('count(id) as bugCount')->from(TABLE_BUG)
              ->where('project')->in($projectID)
@@ -561,14 +557,13 @@ class projectModel extends model
             ->fetch('count');
 
         $statData = new stdclass();
-        $statData->storyCount       = $storyCount;
-        $statData->requirementCount = $requirementCount;
-        $statData->bugCount         = $bugCount;
-        $statData->taskCount        = $taskCount->count;
-        $statData->waitCount        = $taskCount->waitCount;
-        $statData->doingCount       = $taskCount->doingCount;
-        $statData->finishedCount    = $taskCount->finishedCount;
-        $statData->delayedCount     = $delayedCount;
+        $statData->storyCount    = $storyCount;
+        $statData->bugCount      = $bugCount;
+        $statData->taskCount     = $taskCount->count;
+        $statData->waitCount     = $taskCount->waitCount;
+        $statData->doingCount    = $taskCount->doingCount;
+        $statData->finishedCount = $taskCount->finishedCount;
+        $statData->delayedCount  = $delayedCount;
 
         return $statData;
     }
@@ -1354,6 +1349,12 @@ class projectModel extends model
         $this->file->updateObjectID((string)$this->post->uid, $projectID, 'project'); // 通过uid更新文件id。
 
         if($oldProject->parent != $project->parent) $this->loadModel('program')->processNode($projectID, $project->parent, $oldProject->path, $oldProject->grade); // 更新项目从属路径。
+        if($oldProject->storyType != $project->storyType)
+        {
+            /* 编辑项目时如果取消关联需求类型，则把对应类型的需求移除。 */
+            $unlinkType = array_diff(explode(',', $oldProject->storyType), explode(',', $project->storyType));
+            if($unlinkType) $this->unlinkStoryByType($projectID, $unlinkType);
+        }
         if(empty($oldProject->multiple) and $oldProject->model != 'waterfall') $this->loadModel('execution')->syncNoMultipleSprint($projectID);                // 无迭代的非瀑布项目需要更新。
 
         if(dao::isError()) return false;
@@ -1652,6 +1653,33 @@ class projectModel extends model
         return !dao::isError();
     }
 
+    /**
+     * 删除项目和迭代下对应需求概念的关联关系。
+     * Unlink the relationship between the project and the story concept under the iteration and the project.
+     *
+     * @param  int    $projectID
+     * @param  string $storyType
+     * @access public
+     * @return void
+     */
+    public function unlinkStoryByType($projectID, $storyType)
+    {
+        $idList = $this->dao->select('id')->from(TABLE_PROJECT)
+            ->where('deleted')->eq(0)
+            ->andWhere('project')->eq($projectID)
+            ->fetchPairs();
+
+        $idList[$projectID] = $projectID;
+
+        $storyIdList = $this->dao->select('t1.story')->from(TABLE_PROJECTSTORY)->alias('t1')
+            ->leftJoin(TABLE_STORY)->alias('t2')->on('t1.story = t2.id')
+            ->where('t1.project')->in($idList)
+            ->andWhere('t2.type')->in($storyType)
+            ->fetchPairs();
+
+        if($storyIdList) $this->dao->delete()->from(TABLE_PROJECTSTORY)->where('story')->in($storyIdList)->andWhere('project')->in($idList)->exec();
+    }
+
     /**
      * 移除项目成员。
      * Unlink a member.
diff --git a/module/project/tao.php b/module/project/tao.php
index 16334ddb20..613eb1488c 100755
--- a/module/project/tao.php
+++ b/module/project/tao.php
@@ -850,7 +850,6 @@ class projectTao extends projectModel
         return $this->dao->select("t1.project, count(t2.id) as allStories, count(if(t2.status = 'active' or t2.status = 'changing', 1, null)) as leftStories, count(if(t2.status = 'closed' and t2.closedReason = 'done', 1, null)) as doneStories")->from(TABLE_PROJECTSTORY)->alias('t1')
             ->leftJoin(TABLE_STORY)->alias('t2')->on('t1.story=t2.id')
             ->where('t1.project')->in($projectIdList)
-            ->andWhere('t2.type')->eq('story')
             ->andWhere('deleted')->eq('0')
             ->groupBy('project')
             ->fetchAll('project');
@@ -1021,19 +1020,7 @@ class projectTao extends projectModel
 
         if(!$hasProduct && in_array($model, $this->config->project->scrumList)) $lang->project->menu->projectplan['link'] = sprintf($lang->project->menu->projectplan['link'], $projectProduct);
 
-        /* Init story dropdown for project secondary meun. */
-        if($model !== 'kanban' && !empty($this->config->URAndSR) && isset($lang->project->menu->storyGroup))
-        {
-            $lang->project->menu->story = $lang->project->menu->storyGroup;
-            $lang->project->menu->story['link'] = sprintf($lang->project->menu->storyGroup['link'], '%s', $projectProduct);
-            $lang->project->menu->story['dropMenu']->story['link']       = sprintf($lang->project->menu->storyGroup['dropMenu']->story['link'], '%s', $projectProduct);
-            $lang->project->menu->story['dropMenu']->requirement['link'] = sprintf($lang->project->menu->storyGroup['dropMenu']->requirement['link'], '%s', $projectProduct);
-            if(isset($this->app->params['storyType']) && $this->app->params['storyType'] == 'story') $lang->project->menu->story['dropMenu']->story['subModule'] .= ',projectstory,story';
-            if(isset($this->app->params['storyType']) && $this->app->params['storyType'] == 'requirement') $lang->project->menu->story['dropMenu']->requirement['subModule'] .= ',projectstory,story';
-        }
-
         if(!$hasProduct) unset($lang->project->menu->settings['subMenu']->products);
-        if(isset($lang->project->menu->storyGroup)) unset($lang->project->menu->storyGroup);
         if(!in_array($model, $this->config->project->scrumList)) unset($lang->project->menu->projectplan);
         return true;
     }
@@ -1051,20 +1038,6 @@ class projectTao extends projectModel
     protected function setNavGroupMenu(string $navGroup, int $executionID, object $project): bool
     {
         global $lang;
-        /* Single execution and has no product project menu. */
-        if(!$project->multiple && !empty($this->config->URAndSR) && isset($lang->$navGroup->menu->storyGroup))
-        {
-            $lang->$navGroup->menu->story = $lang->$navGroup->menu->storyGroup;
-            $lang->$navGroup->menu->story['link'] = sprintf($lang->$navGroup->menu->storyGroup['link'], '%s', $project->id);
-
-            $lang->$navGroup->menu->story['dropMenu']->story['link']       = sprintf($lang->$navGroup->menu->storyGroup['dropMenu']->story['link'], '%s', $project->id);
-            $lang->$navGroup->menu->story['dropMenu']->requirement['link'] = sprintf($lang->$navGroup->menu->storyGroup['dropMenu']->requirement['link'], '%s', $project->id);
-
-            if(isset($this->app->params['storyType']) && $this->app->params['storyType'] == 'story') $lang->$navGroup->menu->story['dropMenu']->story['subModule'] = 'story,execution';
-            if(isset($this->app->params['storyType']) && $this->app->params['storyType'] == 'requirement') $lang->$navGroup->menu->story['dropMenu']->requirement['subModule'] = 'story,execution';
-        }
-
-        if(isset($lang->$navGroup->menu->storyGroup)) unset($lang->$navGroup->menu->storyGroup);
         foreach($lang->$navGroup->menu as $label => $menu)
         {
             $objectID = 0;
diff --git a/module/project/ui/common.field.php b/module/project/ui/common.field.php
index 3e47503c34..7df1dde350 100644
--- a/module/project/ui/common.field.php
+++ b/module/project/ui/common.field.php
@@ -130,3 +130,12 @@ $fields->field('auth')
     ->wrapBefore()
     ->control('radioList')
     ->items($lang->project->authList);
+
+$storyTypeList = array();
+foreach($lang->story->typeList as $key => $text)
+{
+    $disabled = $key == 'story' ? true : false;
+    $storyTypeList[] = array('text' => $text, 'value' => $key, 'disabled' => $disabled);
+}
+
+$fields->field('storyType')->control(array('control' => 'checkBox', 'items' => $storyTypeList, 'name' => 'storyType[]'));
diff --git a/module/project/ui/create.field.php b/module/project/ui/create.field.php
index e05826a2bd..24aa3d5281 100644
--- a/module/project/ui/create.field.php
+++ b/module/project/ui/create.field.php
@@ -58,3 +58,6 @@ $fields->field('acl')
        ->control(array('control' => 'aclBox', 'aclItems' => data('programID') ? $lang->project->subAclList : $lang->project->aclList, 'aclValue' => $copyProject ? data('copyProject.acl') : 'open', 'whitelistLabel' => $lang->project->whitelist, 'userValue' => data('copyProjectID') ? data('copyProject.whitelist') : ''));
 
 $fields->field('auth')->foldable()->value($copyProject ? data('copyProject.auth') : 'extend');
+
+$storyType = in_array($model, array('waterfall', 'waterfallplus', 'ipd')) ? 'story,requirement' : 'story';
+$fields->field('storyType')->foldable()->value($storyType);
diff --git a/module/project/ui/create.html.php b/module/project/ui/create.html.php
index ed34f9b787..4605d5399a 100644
--- a/module/project/ui/create.html.php
+++ b/module/project/ui/create.html.php
@@ -81,6 +81,7 @@ formGridPanel
         ),
         divider(setClass('h-4 mr-4 ml-2 self-center'))
     ),
+    formHidden('storyType[]', 'story'),
     on::click('[name=name], [name=code], [data-name=begin] .pick *, [name=days], [data-name="parent"] .pick *', 'removeTips'),
     on::click('[type=submit]', 'removeAllTips'),
     on::click('[name=multiple]', $toggleLongTime),
@@ -90,6 +91,7 @@ formGridPanel
     on::change('[name=begin], [name=end]', 'computeWorkDays'),
     on::change('[name^=products]', 'toggleStageBy'),
     on::change('[name=parent], [name=budget]', 'checkBudget'),
+    on::change('[name^=storyType]', 'toggleStoryType'),
     on::init()->do('setTimeout(() => $element.find("[name=longTime]").trigger("change"), 500)'),
     set::title($lang->project->create),
     set::fullModeOrders(array('begin,days,PM,budget', !empty($config->setCode) ? 'parent,hasProduct,name,code,begin' : 'parent,name,hasProduct,begin')),
diff --git a/module/project/ui/edit.field.php b/module/project/ui/edit.field.php
index 4a3d90a39b..fc99bc5c90 100644
--- a/module/project/ui/edit.field.php
+++ b/module/project/ui/edit.field.php
@@ -21,3 +21,4 @@ if(strpos($config->project->edit->requiredFields, 'budget') === false) $fields->
 $fields->field('budget')->value(data('project.budget') !== null && data('project.budget') == 0 ? '' : data('project.budget'));
 
 $fields->field('acl')->control(array('control' => 'aclBox', 'aclItems' => data('programID') ? $lang->project->subAclList : $lang->project->aclList, 'aclValue' => data('project.acl'), 'whitelistLabel' => $lang->project->whitelist, 'userValue' => data('project.whitelist')));
+$fields->field('storyType')->foldable()->value(data('project.storyType'));
diff --git a/module/project/ui/edit.html.php b/module/project/ui/edit.html.php
index 809dcdc460..f0fc6802e0 100644
--- a/module/project/ui/edit.html.php
+++ b/module/project/ui/edit.html.php
@@ -23,6 +23,7 @@ jsVar('currencySymbol', $lang->project->currencySymbol);
 jsVar('parentBudget', $lang->project->parentBudget);
 jsVar('budgetUnitLabel', $lang->project->tenThousandYuan);
 jsVar('unLinkProductTip', $lang->project->unLinkProductTip);
+jsVar('confirmDisableStoryType', $lang->project->confirmDisableStoryType);
 jsVar('weekend', $config->execution->weekend);
 jsVar('allProducts', $allProducts);
 jsVar('branchGroups', $branchGroups);
@@ -31,6 +32,7 @@ jsVar('currentProject', $project->id);
 jsVar('from', $from);
 jsVar('programID', $programID);
 jsVar('LONG_TIME', LONG_TIME);
+jsVar('storyType', $project->storyType);
 
 unset($lang->project->endList['999']);
 jsVar('endList', $lang->project->endList);
@@ -61,12 +63,14 @@ formGridPanel
                 set::items($projectModelItems)
             )
     ),
+    formHidden('storyType[]', 'story'),
     on::change('[name=hasProduct]', 'changeType'),
     on::change('[name=longTime]')->do('const $endPicker = $("[name=end]").zui("datePicker"); $endPicker.render({disabled: $(target).prop("checked")}); if($(target).prop("checked")){ $endPicker.$.setValue(""); $("[name=days]").attr("disabled", "disabled");} else{ $("[name=days]").removeAttr("disabled");}'),
     on::change('[name=future]', 'toggleBudget'),
     on::change('[name=begin], [name=end]', 'computeWorkDays'),
     on::change('[name=parent], [name=budget]', 'checkBudget'),
     on::change('[name^=products]', 'toggleStageBy'),
+    on::change('[name^=storyType]', 'toggleStoryType'),
     set::modeSwitcher(false),
     set::defaultMode('full'),
     set::title($lang->project->edit),
@@ -74,4 +78,3 @@ formGridPanel
 );
 
 render();
-
diff --git a/module/project/ui/view.html.php b/module/project/ui/view.html.php
index 616b764061..6ee6f1d988 100644
--- a/module/project/ui/view.html.php
+++ b/module/project/ui/view.html.php
@@ -203,7 +203,7 @@ row
                     (
                         setClass('w-1/3 storyCount'),
                         div(setClass('text-md font-bold'), $statData->storyCount),
-                        span(setClass('text-gray'), $lang->story->common)
+                        span(setClass('text-gray'), $lang->common->story)
                     ),
                     div
                     (
diff --git a/module/project/view/view.html.php b/module/project/view/view.html.php
index 3a77502a06..4684743ede 100644
--- a/module/project/view/view.html.php
+++ b/module/project/view/view.html.php
@@ -247,7 +247,7 @@
             <div class="detail-content">
               <table class="table table-data data-basic">
                 <tbody>
-                  <?php if(empty($project->hasProduct) and !empty($config->URAndSR) and $project->model !== 'kanban' and isset($lang->project->menu->storyGroup)):?>
+                  <?php if(empty($project->hasProduct) and !empty($config->URAndSR) and $project->model !== 'kanban'):?>
                   <tr>
                     <th><?php echo $lang->story->common;?></th>
                     <td title="<?php echo $statData->storyCount;?>"><?php echo $statData->storyCount;?></td>
diff --git a/module/project/zen.php b/module/project/zen.php
index 08ebc446f5..d8f8e6bd4f 100755
--- a/module/project/zen.php
+++ b/module/project/zen.php
@@ -1,5 +1,6 @@
 <?php
 declare(strict_types=1);
+
 /**
  * The zen file of project module of ZenTaoPMS.
  *
@@ -28,6 +29,7 @@ class projectZen extends project
             ->setIF($this->post->multiple != 'on', 'multiple', '0')
             ->setIF($this->post->multiple == 'on' || !in_array($this->post->model, array('scrum', 'kanban')) || $this->config->vision == 'lite', 'multiple', '1')
             ->setIF($this->post->model == 'ipd', 'stageBy', 'project')
+            ->setIF($this->post->hasProduct == '0', 'storyType', 'story,epic,requirement')
             ->setDefault('openedBy', $this->app->user->account)
             ->setDefault('openedDate', helper::now())
             ->setDefault('team', $this->post->name)
@@ -37,6 +39,7 @@ class projectZen extends project
             ->add('type', 'project')
             ->join('whitelist', ',')
             ->join('auth', ',')
+            ->join('storyType', ',')
             ->stripTags($this->config->project->editor->create['id'], $this->config->allowedTags)
             ->get();
         if($this->post->newProduct == 'on') $project->stageBy = 'project';
@@ -98,6 +101,7 @@ class projectZen extends project
             ->setIF($this->post->budget != 0, 'budget', round((float)$this->post->budget, 2))
             ->join('whitelist', ',')
             ->join('auth', ',')
+            ->join('storyType', ',')
             ->stripTags($this->config->project->editor->edit['id'], $this->config->allowedTags)
             ->remove('products,plans,branch')
             ->get();
@@ -720,7 +724,6 @@ class projectZen extends project
     {
         if($project->hasProduct)
         {
-            if($this->config->URAndSR) unset($this->lang->resource->requirement);
             unset($this->lang->resource->productplan);
             unset($this->lang->resource->tree);
         }
@@ -736,8 +739,6 @@ class projectZen extends project
             unset($this->lang->resource->projectstory->unlinkStory);
             unset($this->lang->resource->projectstory->batchUnlinkStory);
             unset($this->lang->resource->story->view);
-            if($this->config->URAndSR) unset($this->lang->resource->requirement->view);
-            if($this->config->URAndSR) unset($this->lang->resource->requirement->batchChangeBranch);
             unset($this->lang->resource->tree->browseTask);
             unset($this->lang->resource->tree->browsehost);
             unset($this->lang->resource->tree->editHost);
diff --git a/module/projectstory/control.php b/module/projectstory/control.php
index 0bfe8067a7..9a9b810a7f 100644
--- a/module/projectstory/control.php
+++ b/module/projectstory/control.php
@@ -78,23 +78,26 @@ class projectStory extends control
     /**
      * Obtain the tracking matrix through the product.
      *
-     * @param  int   $productID
-     * @param  int   $browseType
-     * @param  int   $recTotal
-     * @param  int   $recPerPage
-     * @param  int   $pageID
+     * @param  int    $projectID
+     * @param  int    $productID
+     * @param  string $branch
+     * @param  string $browseType   allstory|bysearch
+     * @param  int    $param
+     * @param  string $storyType
+     * @param  string $orderBy
+     * @param  int    $recTotal
+     * @param  int    $recPerPage
+     * @param  int    $pageID
      * @access public
      * @return void
      */
-    public function track(int $projectID = 0, int $productID = 0, int $branch = 0, int $recTotal = 0, int $recPerPage = 20, int $pageID = 1)
+    public function track(int $projectID = 0, int $productID = 0, string $branch = '', string $browseType = 'allstory', int $param = 0, string $storyType = '', string $orderBy = 'id_desc', int $recTotal = 0, int $recPerPage = 20, int $pageID = 1)
     {
-        $products = $this->loadModel('product')->getProductPairsByProject($projectID);
-        if(empty($productID)) $productID = key($products);
-
         $project = $this->loadModel('project')->getByID($projectID);
         $this->session->set('hasProduct', $project->hasProduct);
+        $this->config->project->showGrades = null;
 
-        echo $this->fetch('product', 'track', "productID=$productID&branch=$branch&projectID=$projectID&recTotal=$recTotal&recPerPage=$recPerPage&pageID=$pageID");
+        echo $this->fetch('product', 'track', "productID=$productID&branch=$branch&projectID=$projectID&browseType=$browseType&param=$param&storyType=$storyType&orderBy=$orderBy&recTotal=$recTotal&recPerPage=$recPerPage&pageID=$pageID");
     }
 
     /**
@@ -111,7 +114,7 @@ class projectStory extends control
         $this->session->set('productList', $this->app->getURI(true), 'product');
 
         $story = $this->loadModel('story')->getByID((int)$storyID);
-        echo $this->fetch('story', 'view', "storyID=$storyID&version=$story->version&param=" . $this->session->project);
+        echo $this->fetch($story->type, 'view', "storyID=$storyID&version=$story->version&param=" . $this->session->project);
     }
 
     /**
@@ -197,5 +200,188 @@ class projectStory extends control
     {
         echo $this->fetch('execution', 'importPlanStories', "projectID=$projectID&planID=$planID&productID=$productID");
     }
-}
 
+    /**
+     * 查看需求的报告。
+     * The report page.
+     *
+     * @param  int    $productID
+     * @param  int    $branchID
+     * @param  string $storyType
+     * @param  string $browseType
+     * @param  int    $moduleID
+     * @param  string $chartType
+     * @param  int    $projectID
+     * @access public
+     * @return void
+     */
+    public function report(int $productID, int $branchID, string $storyType = 'story', string $browseType = 'unclosed', int $moduleID = 0, string $chartType = 'pie', int $projectID = 0)
+    {
+        echo $this->fetch('story', 'report', "productID=$productID&branchID=$branchID&storyType=$storyType&browseType=$browseType&moduleID=$moduleID&chartType=$chartType&projectID=$projectID");
+    }
+
+    /**
+     * 导出需求数据。
+     * Get the data of the stories to export.
+     *
+     * @param  int    $productID
+     * @param  string $orderBy
+     * @param  int    $executionID
+     * @param  string $browseType
+     * @param  string $storyType   requirement|story
+     * @access public
+     * @return void
+     */
+    public function export(int $productID, string $orderBy, int $executionID = 0, string $browseType = '', string $storyType = 'story')
+    {
+        echo $this->fetch('story', 'export', "productID=$productID&orderBy=$orderBy&executionID=$executionID&browseType=$browseType&storyType=$storyType");
+    }
+
+    /**
+     * Batch review stories.
+     *
+     * @param  string $result
+     * @param  string $reason
+     * @param  string $storyType story|requirement
+     * @access public
+     * @return void
+     */
+    public function batchReview(string $result, string $reason = '', string $storyType = 'story')
+    {
+        echo $this->fetch('story', 'batchReview', "result=$result&reason=$reason&storyType=$storyType");
+    }
+
+    /**
+     * 批量关闭需求。
+     * Batch close the stories.
+     *
+     * @param  int    $productID
+     * @param  int    $executionID
+     * @param  string $storyType   story|requirement
+     * @param  string $from        contribute|work
+     * @access public
+     * @return void
+     */
+    public function batchClose(int $productID = 0, int $executionID = 0, string $storyType = 'story', string $from = '')
+    {
+        echo $this->fetch('story', 'batchClose', "productID=$productID&executionID=$executionID&storyType=$storyType&from=$from");
+    }
+
+
+    /**
+     * Batch change the plan of story.
+     *
+     * @param  int    $planID
+     * @param  int    $oldPlanID
+     * @access public
+     * @return void
+     */
+    public function batchChangePlan(int $planID, int $oldPlanID = 0)
+    {
+        echo $this->fetch('story', 'batchChangePlan', "planID=$planID&oldPlanID=$oldPlanID");
+    }
+
+    /**
+     * Batch assign to.
+     *
+     * @param  string $storyType story|requirement
+     * @access public
+     * @return void
+     */
+    public function batchAssignTo(string $storyType = 'story', string $assignedTo = '')
+    {
+        echo $this->fetch('story', 'batchAssignTo', "storyType=$storyType&assignedTo=$assignedTo");
+    }
+
+
+    /**
+     * Batch edit story.
+     *
+     * @param  int    $productID
+     * @param  int    $executionID
+     * @param  int    $branch
+     * @param  string $storyType
+     * @param  string $from
+     * @access public
+     * @return void
+     */
+    public function batchEdit(int $productID = 0, int $executionID = 0, string $branch = '', string $storyType = 'story', string $from = '')
+    {
+        echo $this->fetch('story', 'batchEdit', "productID=$productID&executionID=$executionID&branch=$branch&storyType=$storyType&from=$from");
+    }
+
+    /**
+     * 导入需求数据。
+     * Import the data of the requiremens.
+     *
+     * @param  int    $productID
+     * @param  int    $branch
+     * @param  string $storyType
+     * @param  int    $projectID
+     * @access public
+     * @return void
+     */
+    public function import($productID, $branch = 0, $storyType = 'story', $projectID = 0)
+    {
+        echo $this->fetch('story', 'import', "productID=$productID&branch=$branch&storyType=$storyType&projectID=$projectID");
+    }
+
+    /**
+     * 显示导入需求数据的页面。
+     * Show the page of importing the data of the requiremens.
+     *
+     * @param  int    $productID
+     * @param  int    $branch
+     * @param  string $type
+     * @param  int    $projectID
+     * @param  int    $pagerID
+     * @param  int    $maxImport
+     * @param  string $insert
+     * @access public
+     * @return void
+     */
+    public function showImport($productID, $branch = 0, $type = 'story', $projectID = 0, $pagerID = 1, $maxImport = 0, $insert = '')
+    {
+        echo $this->fetch('story', 'showImport', "productID=$productID&branch=$branch&type=$type&projectID=$projectID&pagerID=$pagerID&maxImport=$maxImport&insert=$insert");
+    }
+
+    /**
+     * 导出需求模板。
+     * Export the template of the requiremens.
+     *
+     * @param  int    $productID
+     * @param  int    $branch
+     * @param  string $storyType
+     * @access public
+     * @return void
+     */
+    public function exportTemplate($productID, $branch = 0, $storyType = 'story')
+    {
+        echo $this->fetch('story', 'exportTemplate', "productID=$productID&branch=$branch&storyType=$storyType");
+    }
+
+    /**
+     * 批量导入需求到需求库。
+     * Batch import the data of the requiremens to the library.
+     *
+     * @access public
+     * @return void
+     */
+    public function batchImportToLib()
+    {
+        echo $this->fetch('story', 'batchImportToLib');
+    }
+
+    /**
+     * 导入需求到需求库。
+     * Import the data of the requiremens to the library.
+     *
+     * @param  int    $storyID
+     * @access public
+     * @return void
+     */
+    public function importToLib($storyID)
+    {
+        echo $this->fetch('story', 'importToLib', "storyID=$storyID");
+    }
+}
diff --git a/module/projectstory/lang/de.php b/module/projectstory/lang/de.php
index fa7153d0d5..b32ecc8288 100644
--- a/module/projectstory/lang/de.php
+++ b/module/projectstory/lang/de.php
@@ -2,7 +2,7 @@
 /* Field. */
 $lang->projectstory->project = "{$lang->projectCommon} ID";
 $lang->projectstory->product = "{$lang->productCommon} ID";
-$lang->projectstory->story   = "{$lang->SRCommon} List";
+$lang->projectstory->story   = "Requirement List";
 $lang->projectstory->version = "Version";
 $lang->projectstory->order   = "Order";
 
@@ -10,15 +10,26 @@ $lang->projectstory->storyCommon = $lang->projectCommon . ' Story';
 $lang->projectstory->storyList   = $lang->projectCommon . ' Story List';
 $lang->projectstory->storyView   = $lang->projectCommon . ' Story Detail';
 
-$lang->projectstory->common            = "{$lang->projectCommon} {$lang->SRCommon}";
-$lang->projectstory->index             = "{$lang->SRCommon} Home";
-$lang->projectstory->view              = "{$lang->SRCommon} Detail";
-$lang->projectstory->story             = "{$lang->SRCommon} List";
+$lang->projectstory->common            = "{$lang->projectCommon} Requirement";
+$lang->projectstory->index             = "Requirement Home";
+$lang->projectstory->view              = "Requirement Detail";
+$lang->projectstory->story             = "Requirement List";
 $lang->projectstory->track             = 'Tracking Matrix';
-$lang->projectstory->linkStory         = 'Linked' . $lang->SRCommon;
-$lang->projectstory->unlinkStory       = 'Unlinked' . $lang->SRCommon;
-$lang->projectstory->batchUnlinkStory  = 'Batch Unlink ' . $lang->SRCommon;
-$lang->projectstory->importplanstories = 'Linked by plan' . $lang->SRCommon;
+$lang->projectstory->linkStory         = 'Linked Requirement';
+$lang->projectstory->unlinkStory       = 'Unlinked Requirement';
+$lang->projectstory->report            = 'Requirement Report';
+$lang->projectstory->export            = 'Export Requirement';
+$lang->projectstory->batchReview       = 'Batch Review Requirement';
+$lang->projectstory->batchClose        = 'Batch Close Requirement';
+$lang->projectstory->batchChangePlan   = 'Batch Change Plan';
+$lang->projectstory->batchAssignTo     = 'Batch Assign Requirement';
+$lang->projectstory->batchEdit         = 'Batch Edit Requirement';
+$lang->projectstory->importToLib       = 'Import To Library';
+$lang->projectstory->batchImportToLib  = 'Batch Import To Library';
+$lang->projectstory->importCase        = 'Import Requirement';
+$lang->projectstory->exportTemplate    = 'Export Template';
+$lang->projectstory->batchUnlinkStory  = 'Batch Unlink Requirement';
+$lang->projectstory->importplanstories = 'Linked by plan Requirement';
 $lang->projectstory->trackAction       = 'Matrix';
 $lang->projectstory->confirm           = 'Confirm';
 
@@ -26,11 +37,13 @@ $lang->projectstory->confirm           = 'Confirm';
 $lang->projectstory->whyNoStories   = "No story can be linked. Please check whether there is any story in {$lang->projectCommon} which is linked to {$lang->productCommon} and make sure it has been reviewed.";
 $lang->projectstory->batchUnlinkTip = "Other requirements are removed. The following requirements are linked to the execution of this {$lang->projectCommon}. Please remove them from the execution first.";
 
-$lang->projectstory->featureBar['story']['allstory']          = 'All';
-$lang->projectstory->featureBar['story']['unclosed']          = 'Open';
-$lang->projectstory->featureBar['story']['draft']             = 'Draft';
-$lang->projectstory->featureBar['story']['reviewing']         = 'Reviewing';
-$lang->projectstory->featureBar['story']['changing']          = 'Changing';
-$lang->projectstory->featureBar['story']['closed']            = 'Closed';
-$lang->projectstory->featureBar['story']['linkedexecution']   = 'Linked ' . $lang->execution->common;
-$lang->projectstory->featureBar['story']['unlinkedexecution'] = 'Unlinked ' . $lang->execution->common;
+$lang->projectstory->featureBar['story']['allstory']  = 'All';
+$lang->projectstory->featureBar['story']['unclosed']  = 'Open';
+$lang->projectstory->featureBar['story']['draft']     = 'Draft';
+$lang->projectstory->featureBar['story']['reviewing'] = 'Reviewing';
+$lang->projectstory->featureBar['story']['changing']  = 'Changing';
+$lang->projectstory->featureBar['story']['more']      = $lang->more;
+
+$lang->projectstory->moreSelects['story']['more']['closed']            = 'Closed';
+$lang->projectstory->moreSelects['story']['more']['linkedexecution']   = 'Linked'   . $lang->execution->common;
+$lang->projectstory->moreSelects['story']['more']['unlinkedexecution'] = 'Unlinked' . $lang->execution->common;
diff --git a/module/projectstory/lang/en.php b/module/projectstory/lang/en.php
index 27abbcb4e5..dd93c8d558 100644
--- a/module/projectstory/lang/en.php
+++ b/module/projectstory/lang/en.php
@@ -10,15 +10,26 @@ $lang->projectstory->storyCommon = $lang->projectCommon . ' Story';
 $lang->projectstory->storyList   = $lang->projectCommon . ' Story List';
 $lang->projectstory->storyView   = $lang->projectCommon . ' Story Detail';
 
-$lang->projectstory->common            = "{$lang->projectCommon} {$lang->SRCommon}";
-$lang->projectstory->index             = "{$lang->SRCommon} Home";
-$lang->projectstory->view              = "{$lang->SRCommon} Detail";
-$lang->projectstory->story             = "{$lang->SRCommon} List";
+$lang->projectstory->common            = "{$lang->projectCommon} Requirement";
+$lang->projectstory->index             = "Requirement Home";
+$lang->projectstory->view              = "Requirement Detail";
+$lang->projectstory->story             = "Requirement List";
 $lang->projectstory->track             = 'Tracking Matrix';
-$lang->projectstory->linkStory         = 'Linked' . $lang->SRCommon;
-$lang->projectstory->unlinkStory       = 'Unlinked' . $lang->SRCommon;
-$lang->projectstory->batchUnlinkStory  = 'Batch Unlink ' . $lang->SRCommon;
-$lang->projectstory->importplanstories = 'Linked by plan' . $lang->SRCommon;
+$lang->projectstory->linkStory         = 'Linked Requirement';
+$lang->projectstory->unlinkStory       = 'Unlinked Requirement';
+$lang->projectstory->report            = 'Requirement Report';
+$lang->projectstory->export            = 'Export Requirement';
+$lang->projectstory->batchReview       = 'Batch Review Requirement';
+$lang->projectstory->batchClose        = 'Batch Close Requirement';
+$lang->projectstory->batchChangePlan   = 'Batch Change Plan';
+$lang->projectstory->batchAssignTo     = 'Batch Assign Requirement';
+$lang->projectstory->batchEdit         = 'Batch Edit Requirement';
+$lang->projectstory->importToLib       = 'Import To Library';
+$lang->projectstory->batchImportToLib  = 'Batch Import To Library';
+$lang->projectstory->importCase        = 'Import Requirement';
+$lang->projectstory->exportTemplate    = 'Export Template';
+$lang->projectstory->batchUnlinkStory  = 'Batch Unlink Requirement';
+$lang->projectstory->importplanstories = 'Import requirements by plan';
 $lang->projectstory->trackAction       = 'Matrix';
 $lang->projectstory->confirm           = 'Confirm';
 
@@ -26,11 +37,13 @@ $lang->projectstory->confirm           = 'Confirm';
 $lang->projectstory->whyNoStories   = "No story can be linked. Please check whether there is any story in {$lang->projectCommon} which is linked to {$lang->productCommon} and make sure it has been reviewed.";
 $lang->projectstory->batchUnlinkTip = "Other requirements are removed. The following requirements are linked to the execution of this {$lang->projectCommon}. Please remove them from the execution first.";
 
-$lang->projectstory->featureBar['story']['allstory']          = 'All';
-$lang->projectstory->featureBar['story']['unclosed']          = 'Open';
-$lang->projectstory->featureBar['story']['draft']             = 'Draft';
-$lang->projectstory->featureBar['story']['reviewing']         = 'Reviewing';
-$lang->projectstory->featureBar['story']['changing']          = 'Changing';
-$lang->projectstory->featureBar['story']['closed']            = 'Closed';
-$lang->projectstory->featureBar['story']['linkedexecution']   = 'Linked ' . $lang->execution->common;
-$lang->projectstory->featureBar['story']['unlinkedexecution'] = 'Unlinked ' . $lang->execution->common;
+$lang->projectstory->featureBar['story']['allstory']  = 'All';
+$lang->projectstory->featureBar['story']['unclosed']  = 'Open';
+$lang->projectstory->featureBar['story']['draft']     = 'Draft';
+$lang->projectstory->featureBar['story']['reviewing'] = 'Reviewing';
+$lang->projectstory->featureBar['story']['changing']  = 'Changing';
+$lang->projectstory->featureBar['story']['more']      = $lang->more;
+
+$lang->projectstory->moreSelects['story']['more']['closed']            = 'Closed';
+$lang->projectstory->moreSelects['story']['more']['linkedexecution']   = 'Linked'   . $lang->execution->common;
+$lang->projectstory->moreSelects['story']['more']['unlinkedexecution'] = 'Unlinked' . $lang->execution->common;
diff --git a/module/projectstory/lang/fr.php b/module/projectstory/lang/fr.php
index fa7153d0d5..bdfa32c532 100644
--- a/module/projectstory/lang/fr.php
+++ b/module/projectstory/lang/fr.php
@@ -10,13 +10,24 @@ $lang->projectstory->storyCommon = $lang->projectCommon . ' Story';
 $lang->projectstory->storyList   = $lang->projectCommon . ' Story List';
 $lang->projectstory->storyView   = $lang->projectCommon . ' Story Detail';
 
-$lang->projectstory->common            = "{$lang->projectCommon} {$lang->SRCommon}";
+$lang->projectstory->common            = "{$lang->projectCommon} Requirement";
 $lang->projectstory->index             = "{$lang->SRCommon} Home";
 $lang->projectstory->view              = "{$lang->SRCommon} Detail";
 $lang->projectstory->story             = "{$lang->SRCommon} List";
 $lang->projectstory->track             = 'Tracking Matrix';
 $lang->projectstory->linkStory         = 'Linked' . $lang->SRCommon;
 $lang->projectstory->unlinkStory       = 'Unlinked' . $lang->SRCommon;
+$lang->projectstory->report            = 'Requirement Report';
+$lang->projectstory->export            = 'Export Requirement';
+$lang->projectstory->batchReview       = 'Batch Review Requirement';
+$lang->projectstory->batchClose        = 'Batch Close Requirement';
+$lang->projectstory->batchChangePlan   = 'Batch Change Plan';
+$lang->projectstory->batchAssignTo     = 'Batch Assign Requirement';
+$lang->projectstory->batchEdit         = 'Batch Edit Requirement';
+$lang->projectstory->importToLib       = 'Import To Library';
+$lang->projectstory->batchImportToLib  = 'Batch Import To Library';
+$lang->projectstory->importCase        = 'Import Requirement';
+$lang->projectstory->exportTemplate    = 'Export Template';
 $lang->projectstory->batchUnlinkStory  = 'Batch Unlink ' . $lang->SRCommon;
 $lang->projectstory->importplanstories = 'Linked by plan' . $lang->SRCommon;
 $lang->projectstory->trackAction       = 'Matrix';
@@ -26,11 +37,13 @@ $lang->projectstory->confirm           = 'Confirm';
 $lang->projectstory->whyNoStories   = "No story can be linked. Please check whether there is any story in {$lang->projectCommon} which is linked to {$lang->productCommon} and make sure it has been reviewed.";
 $lang->projectstory->batchUnlinkTip = "Other requirements are removed. The following requirements are linked to the execution of this {$lang->projectCommon}. Please remove them from the execution first.";
 
-$lang->projectstory->featureBar['story']['allstory']          = 'All';
-$lang->projectstory->featureBar['story']['unclosed']          = 'Open';
-$lang->projectstory->featureBar['story']['draft']             = 'Draft';
-$lang->projectstory->featureBar['story']['reviewing']         = 'Reviewing';
-$lang->projectstory->featureBar['story']['changing']          = 'Changing';
-$lang->projectstory->featureBar['story']['closed']            = 'Closed';
-$lang->projectstory->featureBar['story']['linkedexecution']   = 'Linked ' . $lang->execution->common;
-$lang->projectstory->featureBar['story']['unlinkedexecution'] = 'Unlinked ' . $lang->execution->common;
+$lang->projectstory->featureBar['story']['allstory']  = 'All';
+$lang->projectstory->featureBar['story']['unclosed']  = 'Open';
+$lang->projectstory->featureBar['story']['draft']     = 'Draft';
+$lang->projectstory->featureBar['story']['reviewing'] = 'Reviewing';
+$lang->projectstory->featureBar['story']['changing']  = 'Changing';
+$lang->projectstory->featureBar['story']['more']      = $lang->more;
+
+$lang->projectstory->moreSelects['story']['more']['closed']            = 'Closed';
+$lang->projectstory->moreSelects['story']['more']['linkedexecution']   = 'Linked'   . $lang->execution->common;
+$lang->projectstory->moreSelects['story']['more']['unlinkedexecution'] = 'Unlinked' . $lang->execution->common;
diff --git a/module/projectstory/lang/zh-cn.php b/module/projectstory/lang/zh-cn.php
index 90b6474979..27f9c00952 100644
--- a/module/projectstory/lang/zh-cn.php
+++ b/module/projectstory/lang/zh-cn.php
@@ -10,27 +10,40 @@ $lang->projectstory->storyCommon = $lang->projectCommon . '需求';
 $lang->projectstory->storyList   = $lang->projectCommon . '需求列表';
 $lang->projectstory->storyView   = $lang->projectCommon . '需求详情';
 
-$lang->projectstory->common            = "{$lang->projectCommon}{$lang->SRCommon}";
-$lang->projectstory->index             = "{$lang->SRCommon}主页";
-$lang->projectstory->view              = "{$lang->SRCommon}详情";
-$lang->projectstory->story             = "{$lang->SRCommon}列表";
+$lang->projectstory->common            = "{$lang->projectCommon}需求";
+$lang->projectstory->index             = "需求主页";
+$lang->projectstory->view              = "需求详情";
+$lang->projectstory->story             = "需求列表";
 $lang->projectstory->track             = '矩阵';
-$lang->projectstory->linkStory         = '关联' . $lang->SRCommon;
-$lang->projectstory->unlinkStory       = '移除' . $lang->SRCommon;
-$lang->projectstory->batchUnlinkStory  = '批量移除' . $lang->SRCommon;
-$lang->projectstory->importplanstories = '按计划关联' . $lang->SRCommon;
+$lang->projectstory->linkStory         = '关联需求';
+$lang->projectstory->unlinkStory       = '移除需求';
+$lang->projectstory->report            = '统计报表';
+$lang->projectstory->export            = '导出需求';
+$lang->projectstory->batchReview       = '批量评审需求';
+$lang->projectstory->batchClose        = '批量关闭需求';
+$lang->projectstory->batchChangePlan   = '批量修改计划';
+$lang->projectstory->batchAssignTo     = '批量指派需求';
+$lang->projectstory->batchEdit         = '批量编辑需求';
+$lang->projectstory->importToLib       = '导入需求库';
+$lang->projectstory->batchImportToLib  = '批量导入需求库';
+$lang->projectstory->importCase        = '导入需求';
+$lang->projectstory->exportTemplate    = '导出模板';
+$lang->projectstory->batchUnlinkStory  = '批量移除需求';
+$lang->projectstory->importplanstories = '按计划关联需求';
 $lang->projectstory->trackAction       = '跟踪矩阵';
 $lang->projectstory->confirm           = '确定';
 
 /* Notice. */
-$lang->projectstory->whyNoStories   = "看起来没有{$lang->SRCommon}可以关联。请检查下{$lang->projectCommon}关联的{$lang->productCommon}中有没有{$lang->SRCommon}，而且要确保它们已经审核通过。";
+$lang->projectstory->whyNoStories   = "看起来没有需求可以关联。请检查下{$lang->projectCommon}关联的{$lang->productCommon}中有没有需求，而且要确保它们已经审核通过。";
 $lang->projectstory->batchUnlinkTip = "其他需求已经移除，如下需求已与该{$lang->projectCommon}下执行相关联，请从执行中移除后再操作。";
 
-$lang->projectstory->featureBar['story']['allstory']          = '全部';
-$lang->projectstory->featureBar['story']['unclosed']          = '未关闭';
-$lang->projectstory->featureBar['story']['draft']             = '草稿';
-$lang->projectstory->featureBar['story']['reviewing']         = '评审中';
-$lang->projectstory->featureBar['story']['changing']          = '变更中';
-$lang->projectstory->featureBar['story']['closed']            = '已关闭';
-$lang->projectstory->featureBar['story']['linkedexecution']   = '已关联' . $lang->execution->common;
-$lang->projectstory->featureBar['story']['unlinkedexecution'] = '未关联' . $lang->execution->common;
+$lang->projectstory->featureBar['story']['allstory']  = '全部';
+$lang->projectstory->featureBar['story']['unclosed']  = '未关闭';
+$lang->projectstory->featureBar['story']['draft']     = '草稿';
+$lang->projectstory->featureBar['story']['reviewing'] = '评审中';
+$lang->projectstory->featureBar['story']['changing']  = '变更中';
+$lang->projectstory->featureBar['story']['more']      = $lang->more;
+
+$lang->projectstory->moreSelects['story']['more']['closed']            = '已关闭';
+$lang->projectstory->moreSelects['story']['more']['linkedexecution']   = '已关联' . $lang->execution->common;
+$lang->projectstory->moreSelects['story']['more']['unlinkedexecution'] = '未关联' . $lang->execution->common;
diff --git a/module/release/control.php b/module/release/control.php
index 51b4f3748e..e4dd452e75 100644
--- a/module/release/control.php
+++ b/module/release/control.php
@@ -372,13 +372,14 @@ class release extends control
         /* Load pager. */
         $this->app->loadClass('pager', true);
         $pager = new pager($recTotal, $recPerPage, $pageID);
+        $excludeStoryIdList = $this->releaseZen->getExcludeStoryIdList($release);
         if($browseType == 'bySearch')
         {
-            $allStories = $this->story->getBySearch($release->product, $release->branch, $queryID, 'id_desc', $executionIdList, 'story', $release->stories, 'draft,reviewing,changing', $pager);
+            $allStories = $this->story->getBySearch($release->product, $release->branch, $queryID, 'id_desc', $executionIdList, 'story', $excludeStoryIdList, 'draft,reviewing,changing', $pager);
         }
         else
         {
-            $allStories = $this->story->batchGetExecutionStories(implode(',', $executionIdList), $release->product, 't1.`order`_desc', 'byBranch', $release->branch, 'story', $release->stories, $pager);
+            $allStories = $this->story->batchGetExecutionStories(implode(',', $executionIdList), $release->product, 't1.`order`_desc', 'byBranch', $release->branch, 'story', $excludeStoryIdList, $pager);
         }
 
         $this->view->allStories = $allStories;
@@ -386,6 +387,8 @@ class release extends control
         $this->view->users      = $this->loadModel('user')->getPairs('noletter');
         $this->view->browseType = $browseType;
         $this->view->param      = $param;
+        $this->view->grades     = $this->loadModel('story')->getGradePairs('story', 'all');
+        $this->view->showGrade  = $this->config->edition == 'ipd';
         $this->view->pager      = $pager;
 
         if($this->app->tab == 'project') $this->view->projectID = $release->project;
diff --git a/module/release/js/linkstory.ui.js b/module/release/js/linkstory.ui.js
new file mode 100644
index 0000000000..92ab722fc3
--- /dev/null
+++ b/module/release/js/linkstory.ui.js
@@ -0,0 +1,13 @@
+window.renderStoryCell = function(result, info)
+{
+    const story = info.row.data;
+    if(info.col.name == 'title' && result)
+    {
+        let html = '';
+        let gradeLabel = (showGrade || story.grade >= 2) ? grades[story.grade] : '';
+        if(gradeLabel) html += "<span class='label gray-pale rounded-xl'>" + gradeLabel + "</span>";
+        if(html) result.unshift({html});
+    }
+
+    return result;
+};
diff --git a/module/release/js/view.ui.js b/module/release/js/view.ui.js
index 23d834cf6a..fe97589dcb 100644
--- a/module/release/js/view.ui.js
+++ b/module/release/js/view.ui.js
@@ -132,3 +132,17 @@ window.onSearchLinks = function(type, result)
     showLink(type, params ? atob(params[1]) : null, true);
     return false;
 };
+
+window.renderStoryCell = function(result, info)
+{
+    const story = info.row.data;
+    if(info.col.name == 'title' && result)
+    {
+        let html = '';
+        let gradeLabel = (showGrade || story.grade >= 2) ? grades[story.grade] : '';
+        if(gradeLabel) html += "<span class='label gray-pale rounded-xl'>" + gradeLabel + "</span>";
+        if(html) result.unshift({html});
+    }
+
+    return result;
+};
diff --git a/module/release/ui/linkstory.html.php b/module/release/ui/linkstory.html.php
index d0e39cda70..70eda62157 100644
--- a/module/release/ui/linkstory.html.php
+++ b/module/release/ui/linkstory.html.php
@@ -10,6 +10,9 @@ declare(strict_types=1);
  */
 namespace zin;
 
+jsVar('showGrade', $showGrade);
+jsVar('grades', $grades);
+
 $buildModule = $app->rawModule == 'projectrelease' ? 'projectrelease' : 'release';
 
 $cols = array();
@@ -36,6 +39,7 @@ dtable
     set::userMap($users),
     set::cols($cols),
     set::data($allStories),
+    set::onRenderCell(jsRaw('window.renderStoryCell')),
     set::updateCheckedRows($checkedRows),
     set::loadPartial(true),
     set::footToolbar(array
diff --git a/module/release/ui/view.html.php b/module/release/ui/view.html.php
index 3dd32b5535..429a81bd69 100644
--- a/module/release/ui/view.html.php
+++ b/module/release/ui/view.html.php
@@ -60,6 +60,8 @@ detailHeader
 );
 
 jsVar('releaseID', $release->id);
+jsVar('showGrade', $showGrade);
+jsVar('grades', $grades);
 
 /* Table data and setting for finished stories tab. */
 jsVar('summary', $summary);
@@ -221,6 +223,7 @@ detailBody
                     set::checkable($canBatchUnlinkStory || $canBatchCloseStory),
                     set::sortLink(createLink($releaseModule, 'view', "releaseID={$release->id}&type=story&link={$link}&param={$param}&orderBy={name}_{sortType}")),
                     set::orderBy($orderBy),
+                    set::onRenderCell(jsRaw('window.renderStoryCell')),
                     set::extraHeight('+144'),
                     set::footToolbar($storyFootToolbar),
                     set::footPager(usePager('storyPager', '', array('recPerPage' => $storyPager->recPerPage, 'recTotal' => $storyPager->recTotal, 'linkCreator' => createLink($releaseModule, 'view', "releaseID={$release->id}&type=story&link={$link}&param={$param}&orderBy={$orderBy}&recTotal={$storyPager->recTotal}&recPerPage={recPerPage}&page={page}")))),
diff --git a/module/release/zen.php b/module/release/zen.php
index e0a5b118af..20f6510e91 100644
--- a/module/release/zen.php
+++ b/module/release/zen.php
@@ -155,6 +155,32 @@ class releaseZen extends release
         return $releaseQuery;
     }
 
+    /**
+     * 获取发布不可关联的需求ID列表。
+     * Get the story id list that can not be linked to the release.
+     *
+     * @param  object    $release
+     * @access protected
+     * @return array
+     */
+    public function getExcludeStoryIdList(object $release): array
+    {
+        $parentIdList = $this->dao->select('id')->from(TABLE_STORY)
+            ->where('product')->eq($release->product)
+            ->andWhere('type')->eq('story')
+            ->andWhere('isParent')->eq('1')
+            ->andWhere('status')->notIN('draft,reviewing,changing')
+            ->fetchPairs();
+
+        foreach(explode(',', $release->stories) as $storyID)
+        {
+            if(!$storyID) continue;
+            if(!isset($parentIdList[$storyID])) $parentIdList[$storyID] = $storyID;
+        }
+
+        return $parentIdList;
+    }
+
     /**
      * 生成的发布详情页面的需求数据。
      * Generate the story data for the release view page.
@@ -195,6 +221,8 @@ class releaseZen extends release
         $this->view->orderBy      = $orderBy;
         $this->view->type         = $type;
         $this->view->link         = $link;
+        $this->view->grades       = $this->loadModel('story')->getGradePairs('story', 'all');
+        $this->view->showGrade    = $this->config->edition == 'ipd';
         $this->view->param        = $param;
         $this->view->storyCases   = $this->loadModel('testcase')->getStoryCaseCounts(array_keys($stories));
         $this->view->summary      = $this->product->summary($stories);
@@ -228,8 +256,10 @@ class releaseZen extends release
 
         unset($this->config->product->search['fields']['product']);
         unset($this->config->product->search['fields']['project']);
+        unset($this->config->product->search['fields']['grade']);
         unset($this->config->product->search['params']['product']);
         unset($this->config->product->search['params']['project']);
+        unset($this->config->product->search['params']['grade']);
 
         $this->config->product->search['actionURL'] = $this->createLink($this->app->rawModule, 'view', "releaseID={$release->id}&type=story&link=true&param=" . helper::safe64Encode('&browseType=bySearch&queryID=myQueryID'));
         $this->config->product->search['queryID']   = $queryID;
diff --git a/module/repo/zen.php b/module/repo/zen.php
index 3a13fe99b2..092a3e6929 100644
--- a/module/repo/zen.php
+++ b/module/repo/zen.php
@@ -1011,6 +1011,8 @@ class repoZen extends repo
                 $productStories = $this->loadModel('story')->getBySearch($productID, 0, $queryID, $orderBy, 0, 'story', array_keys($linkedStories));
                 $allStories     = array_merge($allStories, $productStories);
             }
+
+            $allStories = array_filter($allStories, function($story) { return $story->isParent == '0'; });
         }
         else
         {
diff --git a/module/requirement/config.php b/module/requirement/config.php
new file mode 100644
index 0000000000..83c6648ea1
--- /dev/null
+++ b/module/requirement/config.php
@@ -0,0 +1,4 @@
+<?php
+global $app;
+$app->loadConfig('story');
+$config->requirement = clone $config->story;
diff --git a/module/requirement/control.php b/module/requirement/control.php
new file mode 100644
index 0000000000..020eddd668
--- /dev/null
+++ b/module/requirement/control.php
@@ -0,0 +1,433 @@
+<?php
+class requirement extends control
+{
+    /**
+     * Create a requirement.
+     *
+     * @param  int    $productID
+     * @param  int    $branch
+     * @param  int    $moduleID
+     * @param  int    $storyID
+     * @param  int    $objectID  projectID|executionID
+     * @param  int    $bugID
+     * @param  int    $planID
+     * @param  int    $todoID
+     * @param  string $extra for example feedbackID=0
+     * @access public
+     * @return void
+     */
+    public function create(int $productID = 0, string $branch = '', int $moduleID = 0, int $storyID = 0, int $objectID = 0, int $bugID = 0, int $planID = 0, int $todoID = 0, string $extra = '')
+    {
+        echo $this->fetch('story', 'create', "productID=$productID&branch=$branch&moduleID=$moduleID&storyID=$storyID&objectID=$objectID&bugID=$bugID&planID=$planID&todoID=$todoID&extra=$extra&storyType=requirement");
+    }
+
+    /**
+     * Create a batch stories.
+     *
+     * @param  int    $productID
+     * @param  string $branch
+     * @param  int    $moduleID
+     * @param  int    $storyID
+     * @param  int    $executionID projectID|executionID
+     * @param  int    $plan
+     * @param  string $storyType
+     * @param  string $extra for example feedbackID=0
+     * @access public
+     * @return void
+     */
+    public function batchCreate(int $productID = 0, string $branch = '', int $moduleID = 0, int $storyID = 0, int $executionID = 0, int $plan = 0, string $storyType = 'requirement', string $extra = '')
+    {
+        echo $this->fetch('story', 'batchCreate', "productID=$productID&branch=$branch&moduleID=$moduleID&storyID=$storyID&executionID=$executionID&plan=$plan&storyType=requirement&extra=$extra");
+    }
+
+    /**
+     * View a requirement.
+     *
+     * @param  int    $storyID
+     * @param  int    $version
+     * @param  int    $param     executionID|projectID
+     * @param  string $storyType
+     * @access public
+     * @return void
+     */
+    public function view(int $storyID, int $version = 0, int $param = 0)
+    {
+        echo $this->fetch('story', 'view', "storyID=$storyID&version=$version&param=$param&storyType=requirement");
+    }
+
+    /**
+     * Edit a requirement.
+     *
+     * @param  int    $storyID
+     * @param  string $kanbanGroup
+     * @access public
+     * @return void
+     */
+    public function edit(int $storyID, string $kanbanGroup = 'default')
+    {
+        echo $this->fetch('story', 'edit', "storyID=$storyID&kanbanGroup=$kanbanGroup&storyType=requirement");
+    }
+
+    /**
+     * Batch edit requirement.
+     *
+     * @param  int    $productID
+     * @param  int    $executionID
+     * @param  int    $branch
+     * @param  string $storyType
+     * @param  string $from
+     * @access public
+     * @return void
+     */
+    public function batchEdit(int $productID = 0, int $executionID = 0, string $branch = '', string $storyType = 'requirement', string $from = '')
+    {
+        echo $this->fetch('story', 'batchEdit', "productID=$productID&executionID=$executionID&branch=$branch&storyType=requirement&from=$from");
+    }
+
+    /**
+     * 用户需求详情页，关联软件需求，将用户需求关联到软件需求。
+     * Link story and requirement.
+     *
+     * @param  int    $storyID
+     * @param  string $type          linkStories|linkRelateUR|linkRelateSR
+     * @param  int    $linkedStoryID
+     * @param  string $browseType    ''|bySearch
+     * @param  int    $queryID
+     * @access public
+     * @return void
+     */
+    public function linkStory(int $storyID, string $type = 'linkStories', int $linkedStoryID = 0, string $browseType = '', int $queryID = 0)
+    {
+        echo $this->fetch('story', 'linkStory', "storyID=$storyID&type=$type&linkedStoryID=$linkedStoryID&browseType=$browseType&queryID=$queryID&storyType=requirement");
+    }
+
+    /**
+     * 导出需求数据。
+     * Get the data of the requiremens to export.
+     *
+     * @param  int    $productID
+     * @param  string $orderBy
+     * @param  int    $executionID
+     * @param  string $browseType
+     * @access public
+     * @return void
+     */
+    public function export(int $productID, string $orderBy, int $executionID = 0, string $browseType = '')
+    {
+        echo $this->fetch('story', 'export', "productID=$productID&orderBy=$orderBy&executionID=$executionID&browseType=$browseType&storyType=requirement");
+    }
+
+    /**
+     * 导入需求数据。
+     * Import the data of the requiremens.
+     *
+     * @param  int    $productID
+     * @param  int    $branch
+     * @param  string $storyType
+     * @param  int    $projectID
+     * @access public
+     * @return void
+     */
+    public function import($productID, $branch = 0, $storyType = 'requirement', $projectID = 0)
+    {
+        echo $this->fetch('story', 'import', "productID=$productID&branch=$branch&storyType=requirement&projectID=$projectID");
+    }
+
+    /**
+     * 显示导入需求数据的页面。
+     * Show the page of importing the data of the requiremens.
+     *
+     * @param  int    $productID
+     * @param  int    $branch
+     * @param  string $type
+     * @param  int    $projectID
+     * @param  int    $pagerID
+     * @param  int    $maxImport
+     * @param  string $insert
+     * @access public
+     * @return void
+     */
+    public function showImport($productID, $branch = 0, $type = 'requirement', $projectID = 0, $pagerID = 1, $maxImport = 0, $insert = '')
+    {
+        echo $this->fetch('story', 'showImport', "productID=$productID&branch=$branch&type=requirement&projectID=$projectID&pagerID=$pagerID&maxImport=$maxImport&insert=$insert");
+    }
+
+    /**
+     * 导出需求模板。
+     * Export the template of the requiremens.
+     *
+     * @param  int    $productID
+     * @param  int    $branch
+     * @param  string $storyType
+     * @access public
+     * @return void
+     */
+    public function exportTemplate($productID, $branch = 0, $storyType = 'requirement')
+    {
+        echo $this->fetch('story', 'exportTemplate', "productID=$productID&branch=$branch&storyType=requirement");
+    }
+
+    /**
+     * Delete a requirement.
+     *
+     * @param  int    $storyID
+     * @param  string $confirm   yes|no
+     * @param  string $from      taskkanban
+     * @access public
+     * @return void
+     */
+    public function delete(int $storyID, string $confirm = 'no', string $from = '')
+    {
+        echo $this->fetch('story', 'delete', "storyID=$storyID&confirm=$confirm&from=$from&storyType=requirement");
+    }
+
+    /**
+     * Change a requirement.
+     *
+     * @param  int    $storyID
+     * @param  string $from
+     * @access public
+     * @return void
+     */
+    public function change(int $storyID, string $from = '')
+    {
+        echo $this->fetch('story', 'change', "storyID=$storyID&from=$from&storyType=requirement");
+    }
+
+    /**
+     * Review a requirement.
+     *
+     * @param  int    $storyID
+     * @param  string $from      product|project
+     * @access public
+     * @return void
+     */
+    public function review(int $storyID, string $from = 'product')
+    {
+        echo $this->fetch('story', 'review', "storyID=$storyID&from=$from&storyType=requirement");
+    }
+
+    /**
+     * Submit review.
+     *
+     * @param  int    $storyID
+     * @access public
+     * @return void
+     */
+    public function submitReview(int $storyID)
+    {
+        echo $this->fetch('story', 'submitReview', "storyID=$storyID&storyType=requirement");
+    }
+
+    /**
+     * Batch review requirements.
+     *
+     * @param  string $result
+     * @param  string $reason
+     * @access public
+     * @return void
+     */
+    public function batchReview(string $result, string $reason = '')
+    {
+        echo $this->fetch('story', 'batchReview', "result=$result&reason=$reason&storyType=requirement");
+    }
+
+    /**
+     * Recall the requirement review or requirement change.
+     *
+     * @param  int    $storyID
+     * @param  string $from      list
+     * @param  string $confirm   no|yes
+     * @access public
+     * @return void
+     */
+    public function recall(int $storyID, string $from = 'list', string $confirm = 'no')
+    {
+        echo $this->fetch('story', 'recall', "storyID=$storyID&from=$from&confirm=$confirm&storyType=requirement");
+    }
+
+    /**
+     * 需求的指派给页面。
+     * Assign the requirement to a user.
+     *
+     * @param  int    $storyID
+     * @access public
+     * @return void
+     */
+    public function assignTo(int $storyID)
+    {
+        echo $this->fetch('story', 'assignTo', "storyID=$storyID");
+    }
+
+    /**
+     * 关闭需求。
+     * Close the requirement.
+     *
+     * @param  int    $storyID
+     * @param  string $from      taskkanban
+     * @access public
+     * @return void
+     */
+    public function close(int $storyID, string $from = '')
+    {
+        echo $this->fetch('story', 'close', "storyID=$storyID&from=$from&storyType=requirement");
+    }
+
+    /**
+     * 批量关闭需求。
+     * Batch close the requiremens.
+     *
+     * @param  int    $productID
+     * @param  int    $executionID
+     * @param  string $storyType
+     * @param  string $from        contribute|work
+     * @access public
+     * @return void
+     */
+    public function batchClose(int $productID = 0, int $executionID = 0, string $storyType = 'requirement', string $from = '')
+    {
+        echo $this->fetch('story', 'batchClose', "productID=$productID&executionID=$executionID&storyType=requirement&from=$from");
+    }
+
+    /**
+     * 激活需求。
+     * Activate a requirement.
+     *
+     * @param  int    $storyID
+     * @access public
+     * @return void
+     */
+    public function activate(int $storyID)
+    {
+        echo $this->fetch('story', 'activate', "storyID=$storyID&storyType=requirement");
+    }
+
+    /**
+     * 查看需求的报告。
+     * The report page.
+     *
+     * @param  int    $productID
+     * @param  int    $branchID
+     * @param  string $storyType
+     * @param  string $browseType
+     * @param  int    $moduleID
+     * @param  string $chartType
+     * @param  int    $projectID
+     * @access public
+     * @return void
+     */
+    public function report(int $productID, int $branchID, string $storyType = 'requirement', string $browseType = 'unclosed', int $moduleID = 0, string $chartType = 'pie', int $projectID = 0)
+    {
+        echo $this->fetch('story', 'report', "productID=$productID&branchID=$branchID&storyType=requirement&browseType=$browseType&moduleID=$moduleID&chartType=$chartType&projectID=$projectID");
+    }
+
+    /**
+     * Batch change branch.
+     *
+     * @param  int    $branchID
+     * @param  string $confirm  yes|no
+     * @param  string $storyIdList
+     * @access public
+     * @return void
+     */
+    public function batchChangeBranch(int $branchID, string $confirm = '', string $storyIdList = '')
+    {
+        echo $this->fetch('story', 'batchChangeBranch', "branchID=$branchID&confirm=$confirm&storyIdList=$storyIdList&storyType=requirement");
+    }
+
+    /**
+     * Batch change parent.
+     *
+     * @param  int    $productID
+     * @param  string $storyType
+     * @access public
+     * @return void
+     */
+    public function batchChangeParent(int $productID = 0, string $storyType = 'requirement')
+    {
+        echo $this->fetch('story', 'batchChangeParent', "productID=$productID&storyType=requirement");
+    }
+
+    /**
+     * Batch change grade.
+     *
+     * @param  int    $grade
+     * @access public
+     * @return void
+     */
+    public function batchChangeGrade(int $grade)
+    {
+        echo $this->fetch('story', 'batchChangeGrade', "grade=$grade&storyType=requirement");
+    }
+
+    /**
+     * Batch assign to.
+     *
+     * @param  string $storyType story|requirement
+     * @access public
+     * @return void
+     */
+    public function batchAssignTo(string $storyType = 'requirement', string $assignedTo = '')
+    {
+        echo $this->fetch('story', 'batchAssignTo', "storyType=requirement&assignedTo=$assignedTo");
+    }
+
+    /**
+     * Batch change the module of story.
+     *
+     * @param  int    $moduleID
+     * @access public
+     * @return void
+     */
+    public function batchChangeModule(int $moduleID)
+    {
+        echo $this->fetch('story', 'batchChangeModule', "moduleID=$moduleID&storyType=requirement");
+    }
+
+    /**
+     * Batch change plan.
+     *
+     * @param  int    $planID
+     * @param  int    $oldPlanID
+     * @access public
+     * @return void
+     */
+    public function batchChangePlan(int $planID, int $oldPlanID = 0)
+    {
+        echo $this->fetch('story', 'batchChangePlan', "planID=$planID&oldPlanID=$oldPlanID&storyType=epic");
+    }
+
+    /**
+     * 关联用户需求。
+     * Link related requirements.
+     *
+     * @param  int    $storyID
+     * @param  string $browseType
+     * @param  string $excludeStories
+     * @param  int    $param
+     * @param  int    $recTotal
+     * @param  int    $recPerPage
+     * @param  int    $pageID
+     * @access public
+     * @return void
+     */
+    public function linkRequirements(int $storyID, string $browseType = '', string $excludeStories = '', int $param = 0, int $recTotal = 0, int $recPerPage = 20, int $pageID = 1)
+    {
+        echo $this->fetch('story', 'linkRequirements', "storyID=$storyID&browseType=$browseType&excludeStories=$excludeStories&param=$param&recTotal=$recTotal&recPerPage=$recPerPage&pageID=$pageID");
+    }
+
+    /**
+     * Ajax get the stories of a user.
+     *
+     * @param  int     $userID
+     * @param  string  $id
+     * @param  int     $appendID
+     * @param  string  $storyType
+     * @access public
+     * @return void
+     */
+    public function ajaxGetUserStories(int $userID = 0, string $id = '', int $appendID = 0, $storyType = 'requirement')
+    {
+        echo $this->fetch('story', 'ajaxGetUserStories', "userID=$userID&id=$id&appendID=$appendID&storyType=requirement");
+    }
+}
diff --git a/module/requirement/lang/de.php b/module/requirement/lang/de.php
new file mode 100644
index 0000000000..dcd95a6c84
--- /dev/null
+++ b/module/requirement/lang/de.php
@@ -0,0 +1,20 @@
+<?php
+global $app;
+$app->loadLang('story');
+$lang->requirement = clone $lang->story;
+
+foreach($lang->requirement as $key => $value)
+{
+    if(!is_string($value)) continue;
+    if(strpos($value, $lang->SRCommon) !== false) $lang->requirement->$key = str_replace($lang->SRCommon, $lang->URCommon, $value);
+}
+
+$lang->requirement->common = $lang->URCommon;
+
+$lang->requirement->stageList = array();
+$lang->requirement->stageList[''] = '';
+$lang->requirement->stageList['defining']   = 'Defining';
+$lang->requirement->stageList['planning']   = 'Planning';
+$lang->requirement->stageList['developing'] = 'Developing';
+$lang->requirement->stageList['delivering'] = 'Delivering';
+$lang->requirement->stageList['closed']     = 'Closed';
diff --git a/module/requirement/lang/en.php b/module/requirement/lang/en.php
new file mode 100644
index 0000000000..dcd95a6c84
--- /dev/null
+++ b/module/requirement/lang/en.php
@@ -0,0 +1,20 @@
+<?php
+global $app;
+$app->loadLang('story');
+$lang->requirement = clone $lang->story;
+
+foreach($lang->requirement as $key => $value)
+{
+    if(!is_string($value)) continue;
+    if(strpos($value, $lang->SRCommon) !== false) $lang->requirement->$key = str_replace($lang->SRCommon, $lang->URCommon, $value);
+}
+
+$lang->requirement->common = $lang->URCommon;
+
+$lang->requirement->stageList = array();
+$lang->requirement->stageList[''] = '';
+$lang->requirement->stageList['defining']   = 'Defining';
+$lang->requirement->stageList['planning']   = 'Planning';
+$lang->requirement->stageList['developing'] = 'Developing';
+$lang->requirement->stageList['delivering'] = 'Delivering';
+$lang->requirement->stageList['closed']     = 'Closed';
diff --git a/module/requirement/lang/fr.php b/module/requirement/lang/fr.php
new file mode 100644
index 0000000000..dcd95a6c84
--- /dev/null
+++ b/module/requirement/lang/fr.php
@@ -0,0 +1,20 @@
+<?php
+global $app;
+$app->loadLang('story');
+$lang->requirement = clone $lang->story;
+
+foreach($lang->requirement as $key => $value)
+{
+    if(!is_string($value)) continue;
+    if(strpos($value, $lang->SRCommon) !== false) $lang->requirement->$key = str_replace($lang->SRCommon, $lang->URCommon, $value);
+}
+
+$lang->requirement->common = $lang->URCommon;
+
+$lang->requirement->stageList = array();
+$lang->requirement->stageList[''] = '';
+$lang->requirement->stageList['defining']   = 'Defining';
+$lang->requirement->stageList['planning']   = 'Planning';
+$lang->requirement->stageList['developing'] = 'Developing';
+$lang->requirement->stageList['delivering'] = 'Delivering';
+$lang->requirement->stageList['closed']     = 'Closed';
diff --git a/module/requirement/lang/zh-cn.php b/module/requirement/lang/zh-cn.php
new file mode 100644
index 0000000000..2f7e11156a
--- /dev/null
+++ b/module/requirement/lang/zh-cn.php
@@ -0,0 +1,20 @@
+<?php
+global $app;
+$app->loadLang('story');
+$lang->requirement = clone $lang->story;
+
+foreach($lang->requirement as $key => $value)
+{
+    if(!is_string($value)) continue;
+    if(strpos($value, $lang->SRCommon) !== false) $lang->requirement->$key = str_replace($lang->SRCommon, $lang->URCommon, $value);
+}
+
+$lang->requirement->common = $lang->URCommon;
+
+$lang->requirement->stageList = array();
+$lang->requirement->stageList[''] = '';
+$lang->requirement->stageList['defining']   = '定义中';
+$lang->requirement->stageList['planning']   = '规划中';
+$lang->requirement->stageList['developing'] = '研发中';
+$lang->requirement->stageList['delivering'] = '交付中';
+$lang->requirement->stageList['closed']     = '已关闭';
diff --git a/module/requirement/model.php b/module/requirement/model.php
new file mode 100644
index 0000000000..569db25608
--- /dev/null
+++ b/module/requirement/model.php
@@ -0,0 +1,10 @@
+<?php
+class requirementModel extends model
+{
+    public static function isClickable(object $data, string $action): bool
+    {
+        global $app;
+        $app->control->loadModel('story');
+        return call_user_func_array(array('storyModel', 'isClickable'), array($data, $action));
+    }
+}
diff --git a/module/search/config.php b/module/search/config.php
index 11c1d145af..6d1b7686ff 100644
--- a/module/search/config.php
+++ b/module/search/config.php
@@ -82,6 +82,13 @@ $config->search->fields->requirement->content    = 'keywords,spec,verify';
 $config->search->fields->requirement->addedDate  = 'openedDate';
 $config->search->fields->requirement->editedDate = 'lastEditedDate';
 
+$config->search->fields->epic = new stdclass();
+$config->search->fields->epic->id         = 'id';
+$config->search->fields->epic->title      = 'title';
+$config->search->fields->epic->content    = 'keywords,spec,verify';
+$config->search->fields->epic->addedDate  = 'openedDate';
+$config->search->fields->epic->editedDate = 'lastEditedDate';
+
 $config->search->fields->task = new stdclass();
 $config->search->fields->task->id         = 'id';
 $config->search->fields->task->title      = 'name';
diff --git a/module/search/lang/de.php b/module/search/lang/de.php
index e0f6a4fe07..b23ed3a6f0 100644
--- a/module/search/lang/de.php
+++ b/module/search/lang/de.php
@@ -101,10 +101,12 @@ $lang->search->modules['project']     = $lang->projectCommon;
 $lang->search->modules['execution']   = $lang->execution->common;
 $lang->search->modules['story']       = $lang->SRCommon;
 $lang->search->modules['requirement'] = $lang->URCommon;
+$lang->search->modules['epic']        = $lang->ERCommon;
 $lang->search->modules['aiapp']       = 'AI';
 
 $lang->search->objectTypeList['story']            = $lang->SRCommon;
 $lang->search->objectTypeList['requirement']      = $lang->URCommon;
+$lang->search->objectTypeList['epic']             = $lang->ERCommon;
 $lang->search->objectTypeList['stage']            = 'stage';
 $lang->search->objectTypeList['sprint']           = $lang->execution->common;
 $lang->search->objectTypeList['kanban']           = 'kanban';
diff --git a/module/search/lang/en.php b/module/search/lang/en.php
index 9a4c6341a4..8cc71b5245 100644
--- a/module/search/lang/en.php
+++ b/module/search/lang/en.php
@@ -101,10 +101,12 @@ $lang->search->modules['project']     = $lang->projectCommon;
 $lang->search->modules['execution']   = $lang->execution->common;
 $lang->search->modules['story']       = $lang->SRCommon;
 $lang->search->modules['requirement'] = $lang->URCommon;
+$lang->search->modules['epic']        = $lang->ERCommon;
 $lang->search->modules['aiapp']       = 'AI';
 
 $lang->search->objectTypeList['story']            = $lang->SRCommon;
 $lang->search->objectTypeList['requirement']      = $lang->URCommon;
+$lang->search->objectTypeList['epic']             = $lang->ERCommon;
 $lang->search->objectTypeList['stage']            = 'stage';
 $lang->search->objectTypeList['sprint']           = $lang->execution->common;
 $lang->search->objectTypeList['kanban']           = 'kanban';
diff --git a/module/search/lang/fr.php b/module/search/lang/fr.php
index ac7c0e58a9..cac84edc01 100644
--- a/module/search/lang/fr.php
+++ b/module/search/lang/fr.php
@@ -101,10 +101,12 @@ $lang->search->modules['project']     = $lang->projectCommon;
 $lang->search->modules['execution']   = $lang->execution->common;
 $lang->search->modules['story']       = $lang->SRCommon;
 $lang->search->modules['requirement'] = $lang->URCommon;
+$lang->search->modules['epic']        = $lang->ERCommon;
 $lang->search->modules['aiapp']       = 'AI';
 
 $lang->search->objectTypeList['story']            = $lang->SRCommon;
 $lang->search->objectTypeList['requirement']      = $lang->URCommon;
+$lang->search->objectTypeList['epic']             = $lang->ERCommon;
 $lang->search->objectTypeList['stage']            = 'stage';
 $lang->search->objectTypeList['sprint']           = $lang->execution->common;
 $lang->search->objectTypeList['kanban']           = 'kanban';
diff --git a/module/search/lang/zh-cn.php b/module/search/lang/zh-cn.php
index 6dc43fe290..243bb4115f 100644
--- a/module/search/lang/zh-cn.php
+++ b/module/search/lang/zh-cn.php
@@ -101,10 +101,12 @@ $lang->search->modules['project']     = $lang->projectCommon;
 $lang->search->modules['execution']   = $lang->execution->common;
 $lang->search->modules['story']       = $lang->SRCommon;
 $lang->search->modules['requirement'] = $lang->URCommon;
+$lang->search->modules['epic']        = $lang->ERCommon;
 $lang->search->modules['aiapp']       = 'AI';
 
 $lang->search->objectTypeList['story']            = $lang->SRCommon;
 $lang->search->objectTypeList['requirement']      = $lang->URCommon;
+$lang->search->objectTypeList['epic']             = $lang->ERCommon;
 $lang->search->objectTypeList['stage']            = '阶段';
 $lang->search->objectTypeList['sprint']           = $lang->execution->common;
 $lang->search->objectTypeList['kanban']           = '看板';
diff --git a/module/search/tao.php b/module/search/tao.php
index 8cab6878fa..b826ee0524 100644
--- a/module/search/tao.php
+++ b/module/search/tao.php
@@ -769,7 +769,7 @@ class searchTao extends searchModel
             if($module == 'issue')     $fields = ($this->config->edition == 'max' || $this->config->edition == 'ipd') ? 'id,project,owner,lib' : 'id,project,owner';
             if($module == 'project')   $fields = 'id,model';
             if($module == 'execution') $fields = 'id,type,project';
-            if($module == 'story' || $module == 'requirement') $fields = ($this->config->edition == 'max' || $this->config->edition == 'ipd') ? 'id,type,lib' : 'id,type';
+            if(in_array($module, array('story', 'requirement', 'epic'))) $fields = ($this->config->edition == 'max' || $this->config->edition == 'ipd') ? 'id,type,lib' : 'id,type';
             if(($module == 'risk' || $module == 'opportunity') && ($this->config->edition == 'max' || $this->config->edition == 'ipd')) $fields = 'id,lib';
             if($module == 'doc' && ($this->config->edition == 'max' || $this->config->edition == 'ipd')) $fields = 'id,assetLib,assetLibType';
 
@@ -963,7 +963,7 @@ class searchTao extends searchModel
         if($module == 'issue')     return $this->processIssueRecord($record, $objectList);
         if($module == 'project')   return $this->processProjectRecord($record, $objectList);
         if($module == 'execution') return $this->processExecutionRecord($record, $objectList);
-        if($module == 'story' || $module == 'requirement') return $this->processStoryRecord($record, $module, $objectList);
+        if(in_array($module, array('story', 'requirement', 'epic'))) return $this->processStoryRecord($record, $module, $objectList);
         if(($module == 'risk' || $module == 'opportunity') && ($this->config->edition == 'max' || $this->config->edition == 'ipd')) return $this->processRiskRecord($record, $module, $objectList);
         if($module == 'doc' && ($this->config->edition == 'max' || $this->config->edition == 'ipd')) return $this->processDocRecord($record, $objectList);
 
@@ -1046,7 +1046,7 @@ class searchTao extends searchModel
         }
 
         $module = 'story';
-        $method = 'view';
+        $method = 'storyView';
         if(!empty($story->lib))
         {
             $module = 'assetlib';
diff --git a/module/story/config.php b/module/story/config.php
index 9be5cce06b..5c46866582 100644
--- a/module/story/config.php
+++ b/module/story/config.php
@@ -33,16 +33,16 @@ $config->story->editor->assignto = array('id' => 'comment', 'tools' => 'simpleTo
 
 $config->story->list = new stdclass();
 $config->story->exportFields = '
-    id, product, branch, module, plan, source, sourceNote, title, spec, verify, keywords,
+    id, product, branch, module, plan, source, sourceNote, title, spec, verify, grade, parent, keywords,
     pri, estimate, status, stage, category, taskCountAB, bugCountAB, caseCountAB,
     openedBy, openedDate, assignedTo, assignedDate, mailto,
     reviewedBy, reviewedDate,
     closedBy, closedDate, closedReason,
     lastEditedBy, lastEditedDate,
-    childStories, linkStories, duplicateStory, files';
+    duplicateStory, files';
 
 $config->story->list->customCreateFields      = '';
-$config->story->list->customBatchCreateFields = 'plan,assignedTo,spec,source,verify,pri,estimate,URS,parent,keywords,mailto';
+$config->story->list->customBatchCreateFields = 'plan,assignedTo,spec,source,verify,pri,estimate,keywords,mailto';
 $config->story->list->customBatchEditFields   = 'branch,plan,estimate,pri,assignedTo,source,stage,closedBy,closedReason,keywords';
 
 $config->story->list->actionsOperatedParentStory = ',edit,batchcreate,change,review,recall,submitreview,processstorychange,';
diff --git a/module/story/config/dtable.php b/module/story/config/dtable.php
index 2843f7ec9c..309cb018f4 100644
--- a/module/story/config/dtable.php
+++ b/module/story/config/dtable.php
@@ -26,7 +26,7 @@ if($app->tab == 'execution')
 $config->story->dtable->fieldList['title']['name']         = 'title';
 $config->story->dtable->fieldList['title']['title']        = $lang->story->title;
 $config->story->dtable->fieldList['title']['type']         = 'title';
-$config->story->dtable->fieldList['title']['link']         = array('url' => helper::createLink('story', 'view', 'storyID={id}'));
+$config->story->dtable->fieldList['title']['link']         = array('url' => helper::createLink('{type}', 'view', 'storyID={id}'));
 $config->story->dtable->fieldList['title']['fixed']        = 'left';
 $config->story->dtable->fieldList['title']['sortType']     = true;
 $config->story->dtable->fieldList['title']['minWidth']     = '342';
@@ -58,6 +58,7 @@ $config->story->dtable->fieldList['plan']['title']      = $lang->story->planAB;
 $config->story->dtable->fieldList['plan']['sortType']   = true;
 $config->story->dtable->fieldList['plan']['width']      = '136';
 $config->story->dtable->fieldList['plan']['show']       = true;
+$config->story->dtable->fieldList['plan']['control']    = 'multiple';
 $config->story->dtable->fieldList['plan']['group']      = 4;
 $config->story->dtable->fieldList['plan']['dataSource'] = array('module' => 'productplan', 'method' => 'getPairs', 'params' => '$productID');
 
@@ -201,23 +202,11 @@ $config->story->dtable->fieldList['caseCount']['link']        = "RAWJS<function(
 $config->story->dtable->fieldList['caseCount']['data-toggle'] = 'modal';
 $config->story->dtable->fieldList['caseCount']['group']       = 7;
 
-$config->story->dtable->fieldList['URS']['name']        = 'URS';
-$config->story->dtable->fieldList['URS']['title']       = 'UR';
-$config->story->dtable->fieldList['URS']['sortType']    = false;
-$config->story->dtable->fieldList['URS']['width']       = '50';
-$config->story->dtable->fieldList['URS']['type']        = 'text';
-$config->story->dtable->fieldList['URS']['link']        = $config->edition != 'open' && common::hasPriv('story', 'relation') ? helper::createLink('story', 'relation', 'storyID={id}&storyType={type}') : '';
-$config->story->dtable->fieldList['URS']['data-toggle'] = 'modal';
-$config->story->dtable->fieldList['URS']['group']       = 7;
-
-$config->story->dtable->fieldList['SRS']['name']        = 'SRS';
-$config->story->dtable->fieldList['SRS']['title']       = 'SR';
-$config->story->dtable->fieldList['SRS']['sortType']    = false;
-$config->story->dtable->fieldList['SRS']['width']       = '50';
-$config->story->dtable->fieldList['SRS']['type']        = 'text';
-$config->story->dtable->fieldList['SRS']['link']        = $config->edition != 'open' && common::hasPriv('story', 'relation') ? helper::createLink('story', 'relation', 'storyID={id}&storyType={type}') : '';
-$config->story->dtable->fieldList['SRS']['data-toggle'] = 'modal';
-$config->story->dtable->fieldList['SRS']['group']       = 7;
+$config->story->dtable->fieldList['childItem']['name']     = 'childItem';
+$config->story->dtable->fieldList['childItem']['title']    = $lang->story->childItem;
+$config->story->dtable->fieldList['childItem']['sortType'] = false;
+$config->story->dtable->fieldList['childItem']['type']     = 'text';
+$config->story->dtable->fieldList['childItem']['group']    = 6;
 
 $config->story->dtable->fieldList['closedBy']['name']     = 'closedBy';
 $config->story->dtable->fieldList['closedBy']['title']    = $lang->story->closedBy;
@@ -303,7 +292,7 @@ $config->story->dtable->fieldList['actions']['title']    = $lang->actions;
 $config->story->dtable->fieldList['actions']['fixed']    = 'right';
 $config->story->dtable->fieldList['actions']['required'] = true;
 $config->story->dtable->fieldList['actions']['width']    = 'auto';
-$config->story->dtable->fieldList['actions']['minWidth'] = $app->tab == 'project' ? 250 : 200;
+$config->story->dtable->fieldList['actions']['minWidth'] = $app->tab != 'product' ? 240 : 200;
 $config->story->dtable->fieldList['actions']['type']     = 'actions';
 
 $config->story->dtable->fieldList['actions']['actionsMap']['assigned']['icon'] = 'hand-right';
@@ -345,7 +334,7 @@ $config->story->dtable->fieldList['actions']['actionsMap']['subdivide']['hint']
 $config->story->dtable->fieldList['actions']['actionsMap']['subdivide']['data-app'] = $app->tab;
 
 $config->story->dtable->fieldList['actions']['actionsMap']['processStoryChange']['icon'] = 'ok';
-$config->story->dtable->fieldList['actions']['actionsMap']['processStoryChange']['hint'] = $lang->confirm;
+$config->story->dtable->fieldList['actions']['actionsMap']['processStoryChange']['hint'] = $lang->story->processStoryChange;
 
 $config->story->dtable->fieldList['actions']['actionsMap']['batchCreate']['icon']     = 'split';
 $config->story->dtable->fieldList['actions']['actionsMap']['batchCreate']['hint']     = $lang->story->subdivide;
diff --git a/module/story/config/form.php b/module/story/config/form.php
index b787fe525e..43b6e5d988 100644
--- a/module/story/config/form.php
+++ b/module/story/config/form.php
@@ -8,15 +8,15 @@ $config->story->form->create = array();
 $config->story->form->create['product']     = array('type' => 'int',     'control' => 'select',       'required' => false, 'default' => 0,  'options' => array());
 $config->story->form->create['branch']      = array('type' => 'int',     'control' => 'select',       'required' => false, 'default' => 0,  'options' => array());
 $config->story->form->create['module']      = array('type' => 'int',     'control' => 'select',       'required' => false, 'default' => 0,  'options' => array());
-$config->story->form->create['plan']        = array('type' => 'int',     'control' => 'select',       'required' => false, 'default' => 0,  'options' => array());
+$config->story->form->create['plan']        = array('type' => 'array',   'control' => 'select',       'required' => false, 'default' => 0,  'options' => array(), 'filter' => 'join');
 $config->story->form->create['assignedTo']  = array('type' => 'string',  'control' => 'select',       'required' => false, 'default' => '', 'options' => 'users');
 $config->story->form->create['source']      = array('type' => 'string',  'control' => 'select',       'required' => false, 'default' => '', 'options' => $lang->story->sourceList);
 $config->story->form->create['sourceNote']  = array('type' => 'string',  'control' => 'text',         'required' => false, 'default' => '', 'filter'  => 'trim');
 $config->story->form->create['feedbackBy']  = array('type' => 'string',  'control' => 'text',         'required' => false, 'default' => '', 'filter'  => 'trim');
 $config->story->form->create['notifyEmail'] = array('type' => 'string',  'control' => 'text',         'required' => false, 'default' => '', 'filter'  => 'trim');
 $config->story->form->create['reviewer']    = array('type' => 'array',   'control' => 'multi-select', 'required' => false, 'default' => '', 'options' => 'users');
-$config->story->form->create['URS']         = array('type' => 'array',   'control' => 'multi-select', 'required' => false, 'default' => '', 'options' => array());
 $config->story->form->create['parent']      = array('type' => 'int',     'control' => 'select',       'required' => false, 'default' => 0,  'options' => array());
+$config->story->form->create['grade']       = array('type' => 'int',     'control' => 'select',       'required' => false, 'default' => 1,  'options' => array());
 $config->story->form->create['region']      = array('type' => 'int',     'control' => 'select',       'required' => false, 'default' => 0,  'options' => array());
 $config->story->form->create['lane']        = array('type' => 'int',     'control' => 'select',       'required' => false, 'default' => 0,  'options' => array());
 $config->story->form->create['title']       = array('type' => 'string',  'control' => 'text',         'required' => true,  'filter'  => 'trim');
@@ -49,11 +49,12 @@ $config->story->form->edit['product']        = array('type' => 'int',     'contr
 $config->story->form->edit['branch']         = array('type' => 'int',     'control' => 'select',       'required' => false, 'default' => 0,  'options' => array());
 $config->story->form->edit['module']         = array('type' => 'int',     'control' => 'select',       'required' => false, 'default' => 0,  'options' => array());
 $config->story->form->edit['parent']         = array('type' => 'int',     'control' => 'select',       'required' => false, 'default' => 0,  'options' => array());
+$config->story->form->edit['grade']          = array('type' => 'int',     'control' => 'select',       'required' => false, 'default' => 1,  'options' => array());
 $config->story->form->edit['title']          = array('type' => 'string',  'control' => 'text',         'required' => false, 'default' => '', 'filter'  => 'trim');
 $config->story->form->edit['color']          = array('type' => 'string',  'control' => 'color',        'required' => false, 'default' => '');
 $config->story->form->edit['spec']           = array('type' => 'string',  'control' => 'editor',       'required' => false, 'default' => '');
 $config->story->form->edit['verify']         = array('type' => 'string',  'control' => 'editor',       'required' => false, 'default' => '');
-$config->story->form->edit['plan']           = array('type' => 'int',     'control' => 'select',       'required' => false, 'default' => 0,  'options' => array());
+$config->story->form->edit['plan']           = array('type' => 'array',   'control' => 'select',       'required' => false, 'default' => 0,  'options' => array(), 'filter' => 'join');
 $config->story->form->edit['source']         = array('type' => 'string',  'control' => 'select',       'required' => false, 'default' => '', 'options' => $lang->story->sourceList);
 $config->story->form->edit['sourceNote']     = array('type' => 'string',  'control' => 'text',         'required' => false, 'default' => '', 'filter'  => 'trim');
 $config->story->form->edit['stage']          = array('type' => 'string',  'control' => 'select',       'required' => false, 'default' => '', 'options' => $lang->story->stageList);
@@ -70,12 +71,13 @@ $config->story->form->edit['assignedTo']     = array('type' => 'string',  'contr
 $config->story->form->edit['closedBy']       = array('type' => 'string',  'control' => 'select',       'required' => false, 'default' => '', 'options' => 'users');
 $config->story->form->edit['closedReason']   = array('type' => 'string',  'control' => 'select',       'required' => false, 'default' => '', 'options' => $lang->story->reasonList);
 $config->story->form->edit['duplicateStory'] = array('type' => 'int',     'control' => 'select',       'required' => false, 'default' => '', 'options' => array());
-$config->story->form->edit['childStories']   = array('type' => 'array',   'control' => 'select',       'required' => false, 'default' => '', 'options' => array(), 'filter' => 'join');
 
 $config->story->form->batchCreate = array();
 $config->story->form->batchCreate['branch']     = array('ditto' => true,  'type' => 'int',    'control' => 'select',    'required' => false, 'width' => '200px', 'default' => 0,  'options' => array());
 $config->story->form->batchCreate['module']     = array('ditto' => true,  'type' => 'int',    'control' => 'select',    'required' => false, 'width' => '200px', 'default' => 0,  'options' => array());
 $config->story->form->batchCreate['plan']       = array('ditto' => true,  'type' => 'int',    'control' => 'select',    'required' => false, 'width' => '200px', 'default' => 0,  'options' => array());
+$config->story->form->batchCreate['parent']     = array('ditto' => true,  'type' => 'int',    'control' => 'select',    'required' => false, 'width' => '200px', 'default' => 0,  'options' => array());
+$config->story->form->batchCreate['grade']      = array('ditto' => true,  'type' => 'int',    'control' => 'select',    'required' => false, 'width' => '136px', 'default' => 1,  'options' => array());
 $config->story->form->batchCreate['assignedTo'] = array('ditto' => false, 'type' => 'string', 'control' => 'select',    'required' => false, 'width' => '136px', 'default' => '', 'options' => 'users');
 $config->story->form->batchCreate['region']     = array('ditto' => false, 'type' => 'int',    'control' => 'select',    'required' => false, 'width' => '136px', 'default' => 0,  'options' => array());
 $config->story->form->batchCreate['lane']       = array('ditto' => false, 'type' => 'int',    'control' => 'select',    'required' => false, 'width' => '136px', 'default' => 0,  'options' => array());
@@ -89,8 +91,6 @@ $config->story->form->batchCreate['category']   = array('ditto' => true,  'type'
 $config->story->form->batchCreate['pri']        = array('ditto' => false, 'type' => 'int',    'control' => 'priPicker', 'required' => false, 'width' => '92px',  'default' => $config->story->defaultPriority, 'options' => $lang->story->priList);
 $config->story->form->batchCreate['estimate']   = array('ditto' => false, 'type' => 'float',  'control' => 'text',      'required' => false, 'width' => '76px',  'default' => 0);
 $config->story->form->batchCreate['reviewer']   = array('ditto' => true,  'type' => 'array',  'control' => 'select',    'required' => false, 'width' => '136px', 'default' => '', 'multiple' => true, 'options' => array());
-$config->story->form->batchCreate['URS']        = array('ditto' => false, 'type' => 'array',  'control' => 'select',    'required' => false, 'width' => '200px', 'default' => '', 'multiple' => true);
-$config->story->form->batchCreate['parent']     = array('ditto' => false, 'type' => 'int',    'control' => 'select',    'required' => false, 'width' => '200px', 'default' => '');
 $config->story->form->batchCreate['keywords']   = array('ditto' => false, 'type' => 'string', 'control' => 'text',      'required' => false, 'width' => '200px', 'default' => '');
 $config->story->form->batchCreate['mailto']     = array('ditto' => false, 'type' => 'array',  'control' => 'select',    'required' => false, 'width' => '200px', 'default' => array(''), 'multiple' => true, 'options' => 'users', 'filter' => 'join');
 
@@ -98,7 +98,7 @@ $config->story->form->batchEdit = array();
 $config->story->form->batchEdit['branch']       = array('type' => 'string', 'width' => '200px', 'control' => 'picker', 'required' => false, 'default' => '', 'options' => array());
 $config->story->form->batchEdit['module']       = array('type' => 'int',    'width' => '200px', 'control' => array('control' => 'picker', 'required' => true), 'required' => false, 'default' => 0, 'options' => array());
 $config->story->form->batchEdit['roadmap']      = array('type' => 'int',    'width' => '200px', 'control' => 'picker', 'required' => false, 'default' => 0, 'options' => array());
-$config->story->form->batchEdit['plan']         = array('type' => 'int',    'width' => '200px', 'control' => 'picker', 'required' => false, 'default' => 0, 'options' => array());
+$config->story->form->batchEdit['plan']         = array('type' => 'array',  'width' => '200px', 'control' => 'picker', 'required' => false, 'default' => 0, 'options' => array(), 'filter' => 'join');
 $config->story->form->batchEdit['title']        = array('type' => 'string', 'width' => '240px', 'control' => array('control' => 'colorInput', 'inputClass' => 'filter-none'), 'required' => true,  'filter'  => 'trim', 'base' => true);
 $config->story->form->batchEdit['color']        = array('type' => 'string',                     'control' => 'color',  'required' => false, 'default' => '', 'filter'  => 'trim');
 $config->story->form->batchEdit['estimate']     = array('type' => 'float',  'width' => '76px',  'control' => 'text',   'required' => false, 'default' => '0');
@@ -142,7 +142,6 @@ $config->story->form->review['closedReason']   = array('type' => 'string', 'cont
 $config->story->form->review['pri']            = array('type' => 'int',    'control' => 'priPicker',      'required' => false, 'default' => '', 'options' => $lang->story->priList);
 $config->story->form->review['estimate']       = array('type' => 'string', 'control' => 'text',           'required' => false, 'default' => '');
 $config->story->form->review['duplicateStory'] = array('type' => 'string', 'control' => 'text',           'required' => false, 'default' => '');
-$config->story->form->review['childStories']   = array('type' => 'string', 'control' => 'text',           'required' => false, 'default' => '');
 $config->story->form->review['status']         = array('type' => 'string', 'control' => 'hidden',         'required' => false, 'default' => '');
 
 $config->story->form->activate = array();
@@ -155,7 +154,6 @@ $config->story->form->activate['closedReason']    = array('type' => 'string',
 $config->story->form->activate['closedDate']      = array('type' => 'datetime', 'required' => false, 'default' => null);
 $config->story->form->activate['assignedDate']    = array('type' => 'datetime', 'required' => false, 'default' => $now);
 $config->story->form->activate['duplicateStory']  = array('type' => 'int',      'required' => false, 'default' => 0);
-$config->story->form->activate['childStories']    = array('type' => 'string',   'required' => false, 'default' => '');
 $config->story->form->activate['retractedBy']     = array('type' => 'string',   'required' => false, 'default' => '');
 $config->story->form->activate['retractedReason'] = array('type' => 'string',   'required' => false, 'default' => '');
 $config->story->form->activate['retractedDate']   = array('type' => 'datetime', 'required' => false, 'default' => null);
@@ -170,7 +168,6 @@ $config->story->form->close['closedReason']   = array('type' => 'string',   'req
 $config->story->form->close['closedDate']     = array('type' => 'datetime', 'required' => false, 'default' => $now);
 $config->story->form->close['assignedDate']   = array('type' => 'datetime', 'required' => false, 'default' => $now);
 $config->story->form->close['duplicateStory'] = array('type' => 'int',      'required' => false, 'default' => 0);
-$config->story->form->close['childStories']   = array('type' => 'string',   'required' => false, 'default' => '');
 $config->story->form->close['closeSync']      = array('type' => 'string',   'required' => false, 'default' => '');
 
 $config->story->form->submitReview = array();
diff --git a/module/story/control.php b/module/story/control.php
index f6bc838168..8b1d37f328 100755
--- a/module/story/control.php
+++ b/module/story/control.php
@@ -29,6 +29,8 @@ class story extends control
         $this->loadModel('tree');
         $this->loadModel('user');
         $this->loadModel('action');
+        $this->loadModel('requirement');
+        $this->loadModel('epic');
 
         if($this->app->rawModule == 'projectstory') $this->app->tab = 'project';
     }
@@ -65,7 +67,7 @@ class story extends control
             helper::setcookie('lastStoryModule', $moduleID, $this->config->cookieLife, $this->config->webRoot, '', $this->config->cookieSecure, false);
 
             /* Get story data from post. */
-            $storyData = $this->storyZen->buildStoryForCreate($objectID, $bugID);
+            $storyData = $this->storyZen->buildStoryForCreate($objectID, $bugID, $storyType);
             if(!$storyData) return $this->send(array('result' => 'fail', 'message' => dao::getError()));
 
             $response = $this->storyZen->checkRepeatStory($storyData, $objectID);
@@ -101,8 +103,8 @@ class story extends control
         $initStory = $this->storyZen->initStoryForCreate($planID, $copyStoryID, $bugID, $todoID, $extra);
 
         /* Get form fields. */
-        $this->storyZen->setViewVarsForKanban($objectID, $this->story->parseExtra($extra));
-        $fields = $this->storyZen->getFormFieldsForCreate($productID, $branch, $objectID, $initStory);
+        $this->storyZen->setViewVarsForKanban($objectID, $this->story->parseExtra($extra), $storyType);
+        $fields = $this->storyZen->getFormFieldsForCreate($productID, $branch, $objectID, $initStory, $storyType);
         $fields = $this->storyZen->setModuleField($fields, $moduleID);
         $fields = $this->storyZen->removeFormFieldsForCreate($fields, $storyType);
 
@@ -141,7 +143,7 @@ class story extends control
             if(empty($stories)) return $this->sendError($this->lang->error->noData, true);
             if(dao::isError())  return $this->sendError(dao::getError(), true);
 
-            $storyIdList = $this->story->batchCreate($stories, $productID, $branch, $storyType, $storyID);
+            $storyIdList = $this->story->batchCreate($stories);
             if(dao::isError()) return $this->sendError(dao::getError(), true);
 
             /* Project or execution linked stories. */
@@ -156,7 +158,7 @@ class story extends control
                 }
 
                 if($this->session->project && $executionID != $this->session->project) $this->execution->linkStory($this->session->project, $storyIdList);
-                $this->execution->linkStory($executionID, $storyIdList, $extra, $lanes);
+                $this->execution->linkStory($executionID, $storyIdList, $extra, $lanes, $storyType);
             }
 
             if($this->viewType == 'json') return $this->send(array('result' => 'success', 'message' => $this->lang->saveSuccess, 'idList' => $stories));
@@ -166,7 +168,7 @@ class story extends control
             return $this->send(array('result' => 'success', 'message' => $this->lang->saveSuccess, 'locate' => $locateLink));
         }
 
-        $this->storyZen->setMenuForBatchCreate($productID, $branch, $executionID, $extra);
+        $this->storyZen->setMenuForBatchCreate($productID, $branch, $executionID, $extra, $storyType);
 
         if($productID == 0 && $executionID != 0) return $this->sendError($this->lang->execution->errorNoLinkedProducts, $this->createLink('execution', 'manageproducts', "executionID=$executionID"));
 
@@ -183,28 +185,40 @@ class story extends control
         if($storyID)
         {
             $story = $this->story->getByID($storyID);
-            if($story) unset($customFields['parent'], $fields['parent']);
+            if($story)
+            {
+                if(isset($fields['parent'])) $fields['parent']['default'] = $storyID;
+                $gradeOptions = $this->story->getGradeOptions($story, $storyType);
+                $fields['grade']['options'] = $gradeOptions;
+                $fields['grade']['default'] = current($gradeOptions);
+            }
+
+            $this->view->story      = $story;
             $this->view->storyTitle = isset($story->title) ? $story->title : '';
 
             /* Check can subdivide or not. */
-            if(!$this->story->checkCanSubdivide($story, !empty($product->shadow))) return $this->send(array('result' => 'fail', 'message' => $this->lang->story->errorNotSubdivide, 'load' => array('alert' => $this->lang->story->errorNotSubdivide)));
+            if(!$this->story->checkCanSubdivide($story, !empty($product->shadow))) return $this->send(array('result' => 'fail', 'load' => array('alert' => $this->lang->story->errorNotSubdivide)));
+
+            /* Check can split requirement/story or not. */
+            if($storyType != $story->type && !$this->story->checkCanSplit($story)) return $this->send(array('result' => 'fail', 'load' => array('alert' => $this->lang->story->errorCannotSplit)));
         }
 
-        $this->view->title        = $product->name . $this->lang->hyphen . ($storyID ? $this->lang->story->subdivide : $this->lang->story->batchCreate);
-        $this->view->customFields = $customFields;
-        $this->view->showFields   = $showFields;
-        $this->view->product      = $product;
-        $this->view->branch       = $branch;
-        $this->view->productID    = $productID;
-        $this->view->storyID      = $storyID;
-        $this->view->moduleID     = $moduleID;
-        $this->view->executionID  = $executionID;
-        $this->view->type         = $storyType;
-        $this->view->fields       = $fields;
-        $this->view->planID       = $plan;
-        $this->view->stories      = $this->storyZen->getDataFromUploadImages($productID, $moduleID, $plan);
-        $this->view->storyTitle   = isset($story->title) ? $story->title : '';
-        $this->view->forceReview  = $this->story->checkForceReview();
+        $this->view->title         = $product->name . $this->lang->hyphen . ($storyID ? $this->lang->story->subdivide : $this->lang->story->batchCreate);
+        $this->view->customFields  = $customFields;
+        $this->view->showFields    = $showFields;
+        $this->view->product       = $product;
+        $this->view->branch        = $branch;
+        $this->view->productID     = $productID;
+        $this->view->storyID       = $storyID;
+        $this->view->moduleID      = $moduleID;
+        $this->view->executionID   = $executionID;
+        $this->view->type          = $storyType;
+        $this->view->fields        = $fields;
+        $this->view->planID        = $plan;
+        $this->view->maxGradeGroup = $this->story->getMaxGradeGroup();
+        $this->view->stories       = $this->storyZen->getDataFromUploadImages($productID, $moduleID, $plan);
+        $this->view->storyTitle    = isset($story->title) ? $story->title : '';
+        $this->view->forceReview   = $this->story->checkForceReview($storyType);
 
         $this->display();
     }
@@ -280,6 +294,7 @@ class story extends control
         $this->loadModel('file');
         $this->app->loadLang('bug');
         $this->commonAction($storyID);
+        $this->story->getAllChildId($storyID);
 
         if(!empty($_POST))
         {
@@ -310,6 +325,7 @@ class story extends control
 
         $this->view->title        = $this->lang->story->edit . "STORY" . $this->lang->hyphen . $this->view->story->title;
         $this->view->story        = $story;
+        $this->view->showGrade    = $this->config->edition == 'ipd';
         $this->view->twins        = empty($story->twins) ? array() : $this->story->getByList($story->twins);
         $this->view->fields       = $fields;
         $this->view->branches     = $this->view->product->type == 'normal' ? array() : $this->loadModel('branch')->getPairs($story->product);
@@ -354,17 +370,11 @@ class story extends control
 
         /* Set Custom*/
         foreach(explode(',', $this->config->story->list->customBatchEditFields) as $field) $customFields[$field] = $this->lang->story->$field;
-        $showFields = $this->config->story->custom->batchEditFields;
-        if($storyType == 'requirement')
-        {
-            unset($customFields['plan'], $customFields['stage']);
-            $showFields = str_replace(array('plan', 'stage'),  '', $showFields);
-        }
 
         $product = $this->product->getByID($productID);
         if($product && $product->type == 'normal') unset($customFields['branch']);
         $this->view->customFields = $customFields;
-        $this->view->showFields   = $showFields;
+        $this->view->showFields   = $this->config->story->custom->batchEditFields;
 
         $this->storyZen->setFormOptionsForBatchEdit($productID, $executionID, $stories);
 
@@ -502,7 +512,7 @@ class story extends control
 
         if($tab == 'product' and !empty($product->shadow)) return $this->send(array('result' => 'success', 'open' => array('url' => $uri, 'app' => 'project')));
 
-        if(!$story)
+        if(!$story || (isset($story->type) && $story->type != $storyType))
         {
             $locateModule = $this->config->vision == 'lite' ? 'project' : 'product';
             $locateMethod = ($this->config->edition == 'ipd' && $this->config->vision == 'or') ? 'browse' : 'index';
@@ -528,7 +538,7 @@ class story extends control
         if($this->app->tab == 'project')
         {
             $projectID = $param ? $param : $this->session->project;
-            $project   = $this->loadModel('project')->fetchByID($projectID);
+            $project   = $this->loadModel('project')->fetchByID((int)$projectID);
             $this->view->projectID = $projectID;
             $this->view->project   = $project;
             if(!$project->multiple)
@@ -558,22 +568,54 @@ class story extends control
             $this->product->setMenu($story->product, $story->branch);
         }
 
-        $this->view->title      = "STORY #$story->id $story->title - $product->name";
-        $this->view->branches   = $product->type == 'normal' ? array() : $this->loadModel('branch')->getPairs($product->id);
-        $this->view->users      = $this->user->getPairs('noletter');
-        $this->view->executions = $this->execution->getPairs(0, 'all', 'nocode');
-        $this->view->version    = $version;
-        $this->view->preAndNext = $this->loadModel('common')->getPreAndNextObject('story', $storyID);
-        $this->view->builds     = $this->loadModel('build')->getStoryBuilds($storyID);
-        $this->view->releases   = $this->loadModel('release')->getStoryReleases($storyID);
-        $this->view->story      = $story;
-        $this->view->product    = $product;
-        $this->view->actions    = $this->action->getList('story', $storyID);
-        $this->view->branch     = $story->branch;
+        $this->view->title         = "STORY #$story->id $story->title - $product->name";
+        $this->view->branches      = $product->type == 'normal' ? array() : $this->loadModel('branch')->getPairs($product->id);
+        $this->view->users         = $this->user->getPairs('noletter');
+        $this->view->executions    = $this->execution->getPairs(0, 'all', 'nocode');
+        $this->view->version       = $version;
+        $this->view->preAndNext    = $this->loadModel('common')->getPreAndNextObject('story', $storyID);
+        $this->view->builds        = $this->loadModel('build')->getStoryBuilds($storyID);
+        $this->view->releases      = $this->loadModel('release')->getStoryReleases($storyID);
+        $this->view->story         = $story;
+        $this->view->product       = $product;
+        $this->view->maxGradeGroup = $this->story->getMaxGradeGroup();
+        $this->view->gradePairs    = $this->story->getGradePairs($story->type, 'all');
+        $this->view->showGrade     = $this->config->edition == 'ipd';
+        $this->view->actions       = $this->action->getList('story', $storyID);
+        $this->view->branch        = $story->branch;
 
         $this->display();
     }
 
+    /**
+     * 需求详情，延后鉴权。
+     * View a story, delay auth.
+     *
+     * @param  int    $storyID
+     * @access public
+     * @return void
+     */
+    public function storyView(int $storyID)
+    {
+        $story = $this->story->fetchByID($storyID);
+        if(common::hasPriv($story->type, 'view'))
+        {
+            echo $this->fetch($story->type, 'view', "storyID=$storyID");
+        }
+        else
+        {
+            $vars = "module={$story->type}&method=view";
+            if(isset($this->server->http_referer))
+            {
+                $referer = helper::safe64Encode($this->server->http_referer);
+                $vars   .= "&referer=$referer";
+            }
+            $denyLink = helper::createLink('user', 'deny', $vars);
+
+            return $this->send(array('result' => 'success', 'load' => $denyLink));
+        }
+    }
+
     /**
      * Delete a story.
      *
@@ -591,7 +633,11 @@ class story extends control
 
         if($confirm == 'no')
         {
-            if($story->type == 'requirement') $this->lang->story->confirmDelete = str_replace($this->lang->SRCommon, $this->lang->URCommon, $this->lang->story->confirmDelete);
+            if($story->type != 'story')
+            {
+                $replacement = $story->type == 'requirement' ? $this->lang->URCommon : $this->lang->ERCommon;
+                $this->lang->story->confirmDelete = str_replace($this->lang->SRCommon, $replacement, $this->lang->story->confirmDelete);
+            }
             $confirmURL = $this->createLink('story', 'delete', "story=$storyID&confirm=yes&from=$from&storyType=$storyType");
             return $this->send(array('result' => 'fail', 'callback' => "zui.Modal.confirm({message: '{$this->lang->story->confirmDelete}', icon: 'icon-exclamation-sign', iconClass: 'warning-pale rounded-full icon-2x'}).then((res) => {if(res) $.ajaxSubmit({url: '$confirmURL'});});"));
         }
@@ -789,7 +835,7 @@ class story extends control
         $this->view->actions      = $this->action->getList('story', $storyID);
         $this->view->reviewers    = $this->user->getPairs('noclosed|nodeleted', '', 0, $reviewers);
         $this->view->users        = $this->user->getPairs('noclosed|noletter');
-        $this->view->needReview   = (($this->app->user->account == $product->PO or $this->config->story->needReview == 0 or !$this->story->checkForceReview()) and empty($story->reviewer)) ? "checked='checked'" : "";
+        $this->view->needReview   = (($this->app->user->account == $product->PO or $this->config->{$storyType}->needReview == 0 or !$this->story->checkForceReview($storyType)) and empty($story->reviewer)) ? "checked='checked'" : "";
         $this->view->lastReviewer = $this->story->getLastReviewer($story->id);
 
         $this->display();
@@ -800,8 +846,8 @@ class story extends control
      * Close the story.
      *
      * @param  int    $storyID
-     * @param  string $from      taskkanban
-     * @param  string $storyType story|requirement
+     * @param  string $from        taskkanban
+     * @param  string $storyType   story|requirement
      * @access public
      * @return void
      */
@@ -815,15 +861,14 @@ class story extends control
             $postData = form::data($this->config->story->form->close)
                 ->stripTags($this->config->story->editor->close['id'], $this->config->allowedTags)
                 ->removeIF($this->post->closedReason != 'duplicate', 'duplicateStory')
-                ->removeIF($this->post->closedReason != 'subdivided', 'childStories')
                 ->get();
+
+            if(strpos($this->config->{$story->type}->change->requiredFields, 'comment') !== false and !$this->post->comment) $this->send(array('result' => 'fail', 'message' => array('comment' => sprintf($this->lang->error->notempty, $this->lang->comment))));
             $postData = $this->loadModel('file')->processImgURL($postData, $this->config->story->editor->close['id'], $this->post->uid);
 
             $changes = $this->story->close($storyID, $postData);
             if(dao::isError()) return $this->send(array('result' => 'fail', 'message' => dao::getError()));
 
-            $this->story->closeParentRequirement($storyID, $postData);
-
             if($changes)
             {
                 $preStatus = $story->status;
@@ -864,7 +909,7 @@ class story extends control
         $this->story->replaceURLang($story->type);
 
         /* Set the closed reason options and remove subdivided options. */
-        $reasonList = $this->lang->story->reasonList;
+        $reasonList = $this->lang->{$storyType}->reasonList;
         if($story->status == 'draft') unset($reasonList['cancel']);
         unset($reasonList['subdivided']);
 
@@ -918,7 +963,6 @@ class story extends control
         /* Get the skipped and already closed stories, and the count of stories which have a twin. */
         $stories      = $this->story->getByList($storyIdList);
         $closedStory  = array();
-        $skippedStory = array();
         $ignoreTwins  = array();
         $twinsCount   = array();
         $storyCount   = count($stories);
@@ -930,9 +974,11 @@ class story extends control
                 continue;
             }
 
-            if($story->parent == -1)       $skippedStory[] = '#' . $story->id;
-            if($story->status == 'closed') $closedStory[]  = '#' . $story->id;
-            if($story->parent == -1 || $story->status == 'closed') unset($stories[$story->id]);
+            if($story->status == 'closed')
+            {
+                $closedStory[] = $story->id;
+                unset($stories[$story->id]);
+            }
 
             if(!empty($story->twins))
             {
@@ -948,9 +994,7 @@ class story extends control
         if($storyCount == count($closedStory)) return $this->send(array('result' => 'fail', 'load' => array('alert' => $this->lang->story->notice->closed, 'locate' => $this->session->storyList)));
 
         $errorTips = '';
-        if($closedStory)  $errorTips .= sprintf($this->lang->story->closedStory, implode(' ', $closedStory));
-        if($errorTips)    $errorTips .= '\n';
-        if($skippedStory) $errorTips .= sprintf($this->lang->story->skipStory,   implode(' ', $skippedStory));
+        if($closedStory) $errorTips .= sprintf($this->lang->story->closedStory, implode(',', $closedStory));
 
         $this->view->productID  = $productID;
         $this->view->stories    = $stories;
@@ -1018,9 +1062,21 @@ class story extends control
         $stories       = $this->story->getByList($_POST['storyIdList']);
         $activeStories = array();
         $storyPairs    = array();
+        $hasParent     = false;
+        $hasERUR       = false;
         foreach($stories as $story)
         {
             if(str_contains(',draft,reviewing,changing,closed,', ",{$story->status},")) continue;
+            if($story->type != 'story')
+            {
+                $hasERUR = true;
+                continue;
+            }
+            if($story->isParent == '1')
+            {
+                $hasParent = true;
+                continue;
+            }
 
             $activeStories[$story->id] = $story;
             $storyPairs[$story->id]    = $story->title;
@@ -1035,6 +1091,8 @@ class story extends control
         $this->view->taskType       = empty($_POST['type'])           ? ''      : $_POST['type'];
         $this->view->stories        = $activeStories;
         $this->view->storyPairs     = $storyPairs;
+        $this->view->hasParent      = $hasParent;
+        $this->view->hasERUR        = $hasERUR;
         $this->view->modules        = $this->loadModel('tree')->getTaskOptionMenu($executionID, 0, 'allModule');
         $this->view->members        = $this->loadModel('user')->getTeamMemberPairs($executionID, 'execution', 'nodeleted');
         $this->view->storyTasks     = $this->loadModel('task')->getStoryTaskCounts(array_keys($stories), $executionID);
@@ -1133,6 +1191,28 @@ class story extends control
         return $this->send(array('result' => 'success', 'load' => true));
     }
 
+    /**
+     * Batch change the grade of story.
+     *
+     * @param  int    $grade
+     * @access public
+     * @return void
+     */
+    public function batchChangeGrade(int $grade)
+    {
+        if(empty($_POST['storyIdList'])) return $this->send(array('result' => 'success', 'load' => true));
+
+        $storyIdList = array_unique($this->post->storyIdList);
+        $message = $this->story->batchChangeGrade($storyIdList, $grade);
+
+        $response = array();
+        $response['result'] = 'success';
+        $response['load']   = false;
+        if($message) $response['callback'] = "zui.Modal.alert('{$message}').then((res) => {loadCurrentPage()});";
+        if(empty($message)) $response['load'] = true;
+        return $this->send($response);
+    }
+
     /**
      * Batch change the stage of story.
      *
@@ -1155,7 +1235,30 @@ class story extends control
         if($message) $response['callback'] = "zui.Modal.alert({icon: 'icon-exclamation-sign', iconClass: 'warning-pale rounded-full icon-2x', message: '{$message}'}).then((res) => {loadCurrentPage()});";
         if(empty($message)) $response['load'] = true;
         return $this->send($response);
+    }
 
+    /**
+     * 批量修改需求的父需求。
+     * Batch change the parent of story.
+     *
+     * @param  int    $productID
+     * @param  string $storyType story|requirement
+     * @access public
+     * @return void
+     */
+    public function batchChangeParent(int $productID = 0, string $storyType = 'story')
+    {
+        if($_POST)
+        {
+            $storyIdList = $this->cookie->checkedItem;
+            $result      = $this->story->batchChangeParent($storyIdList, (int)$this->post->parent, $storyType);
+            if($result) return $this->send(array('result' => 'fail', 'callback' => "zui.Modal.alert('$result');", 'closeModal' => true, 'load' => true));
+
+            return $this->send(array('result' => 'success', 'load' => true, 'closeModal' => true));
+        }
+
+        $this->view->parents = $this->story->getParentStoryPairs($productID, '', $storyType);
+        $this->display();
     }
 
     /**
@@ -1312,29 +1415,29 @@ class story extends control
     }
 
     /**
-     * 关联需求。
-     * Link story and requirement.
-     *
-     * 引用1：软件需求列表页，关联用户需求，将软件需求关联到用户需求。
-     * 引用2：用户需求列表页，关联软件需求，将用户需求关联到软件需求。
+     * 需求详情页关联需求。
+     * Link story in view.
      *
      * @param  int    $storyID
-     * @param  string $type          linkStories|linkRelateUR|linkRelateSR
+     * @param  string $type          link|remove
      * @param  int    $linkedStoryID
      * @param  string $browseType    ''|bySearch
      * @param  int    $queryID       0|
-     * @param  string $storyType     story|requirement
+     * @param  int    $recTotal
+     * @param  int    $recPerPage
+     * @param  int    $pageID
      * @access public
      * @return void
      */
-    public function linkStory(int $storyID, string $type = 'linkStories', int $linkedStoryID = 0, string $browseType = '', int $queryID = 0, string $storyType = 'story')
+    public function linkStory(int $storyID, string $type = 'link', int $linkedStoryID = 0, string $browseType = '', int $queryID = 0, int $recTotal = 0, int $recPerPage = 20, int $pageID = 1)
     {
         $this->commonAction($storyID);
+        $story = $this->story->getById($storyID);
 
         if($type == 'remove')
         {
             $this->story->unlinkStory($storyID, $linkedStoryID);
-            helper::end();
+            return $this->send(array('result' => 'success', 'load' => true));
         }
 
         if($_POST)
@@ -1346,120 +1449,45 @@ class story extends control
         }
 
         /* Get story, product, products, and queryID. */
-        $story    = $this->story->getById($storyID);
         $products = $this->product->getPairs('', 0, '', 'all');
 
-        /* Change for requirement story title. */
-        if($story->type == 'requirement')
-        {
-            $this->lang->story->title     = str_replace($this->lang->URCommon, $this->lang->SRCommon, $this->lang->story->title);
-            $this->lang->story->linkStory = str_replace($this->lang->URCommon, $this->lang->SRCommon, $this->lang->story->linkStory);
-        }
-
         /* Build search form. */
-        $actionURL = $this->createLink('story', 'linkStory', "storyID=$storyID&type=$type&linkedStoryID=$linkedStoryID&browseType=bySearch&queryID=myQueryID&storyType=$storyType");
-        $this->product->buildSearchForm($story->product, $products, $queryID, $actionURL, $story->type == 'story' ? 'requirement' : 'story', (string)$story->branch);
+        $actionURL = $this->createLink('story', 'linkStory', "storyID=$storyID&type=$type&linkedStoryID=$linkedStoryID&browseType=bySearch&queryID=myQueryID&recTotal=$recTotal&recPerPage=$recPerPage&pageID=$pageID");
+        $this->product->buildSearchForm($story->product, $products, $queryID, $actionURL, 'all', (string)$story->branch);
 
-        /* Get stories to link. */
-        $stories2Link = $this->story->getStories2Link($storyID, $type, $browseType, $queryID, $story->type);
-
-        /* Assign. */
-        $this->view->title        = $this->lang->story->linkStory . "STORY" . $this->lang->hyphen .$this->lang->story->linkStory;
-        $this->view->type         = $type;
-        $this->view->stories2Link = $stories2Link;
-        $this->view->users        = $this->loadModel('user')->getPairs('noletter');
-
-        $this->display();
-    }
-
-    /**
-     * 关联软件需求。
-     * Link related stories.
-     *
-     * @param  int    $storyID
-     * @param  string $browseType
-     * @param  string $excludeStories
-     * @param  int    $param
-     * @param  int    $recTotal
-     * @param  int    $recPerPage
-     * @param  int    $pageID
-     * @access public
-     * @return void
-     */
-    public function linkStories(int $storyID, string $browseType = '', string $excludeStories = '', int $param = 0, int $recTotal = 0, int $recPerPage = 20, int $pageID = 1)
-    {
         /* Load pager. */
         $this->app->loadClass('pager', true);
         $pager = new pager($recTotal, $recPerPage, $pageID);
 
-        /* Get story, product, products, and queryID. */
-        $story    = $this->story->getById($storyID);
-        $products = $this->product->getPairs('', 0, '', 'all');
-        $queryID  = ($browseType == 'bySearch') ? $param : 0;
-        $type     = $story->type == 'story' ? 'linkRelateSR' : 'linkRelateUR';
-        $method   = $story->type == 'story' ? 'linkStories'  : 'linkRequirements';
+        /* Get stories to link. */
+        $stories2Link = $this->story->getStories2Link($storyID, $browseType, $queryID, $pager);
 
-        /* Build search form. */
-        $actionURL = $this->createLink('story', $method, "storyID=$storyID&browseType=bySearch&excludeStories=$excludeStories&queryID=myQueryID");
-        $this->product->buildSearchForm($story->product, $products, $queryID, $actionURL, $story->type);
-
-        $this->view->story        = $story;
-        $this->view->stories2Link = $this->story->getStories2Link($storyID, $type, $browseType, $queryID, $story->type, $pager, $excludeStories);
-        $this->view->products     = $products;
-        $this->view->users        = $this->user->getPairs('noletter');
-        $this->view->pager        = $pager;
+        /* Assign. */
+        $this->view->title         = $this->lang->story->linkStory . "STORY" . $this->lang->hyphen .$this->lang->story->linkStory;
+        $this->view->type          = $type;
+        $this->view->pager         = $pager;
+        $this->view->stories2Link  = $stories2Link;
+        $this->view->maxGradeGroup = $this->story->getMaxGradeGroup();
+        $this->view->users         = $this->loadModel('user')->getPairs('noletter');
 
         $this->display();
     }
 
     /**
-     * 关联用户需求。
-     * Link related requirements.
+     * 需求的父需求变更时，子需求确认变更。
+     * Confirm the change of the parent story.
      *
      * @param  int    $storyID
-     * @param  string $browseType
-     * @param  string $excludeStories
-     * @param  int    $param
-     * @param  int    $recTotal
-     * @param  int    $recPerPage
-     * @param  int    $pageID
      * @access public
      * @return void
      */
-    public function linkRequirements(int $storyID, string $browseType = '', string $excludeStories = '', int $param = 0, int $recTotal = 0, int $recPerPage = 20, int $pageID = 1)
+    public function processStoryChange(int $storyID)
     {
-        $this->lang->story->title  = str_replace($this->lang->SRCommon, $this->lang->URCommon, $this->lang->story->title);
-        $this->config->product->search['fields']['title'] = $this->lang->story->title;
-        unset($this->config->product->search['fields']['plan']);
-        unset($this->config->product->search['fields']['stage']);
+        $story  = $this->story->fetchByID($storyID);
+        $parent = $this->story->fetchByID($story->parent);
 
-        echo $this->fetch('story', 'linkStories', "storyID=$storyID&browseType=$browseType&excludeStories=$excludeStories&param=$param&recTotal=$recTotal&recPerPage=$recPerPage&pageID=$pageID");
-    }
-
-    /**
-     * 当软件需求关联的用户需求有变更时，让用户决定是否变更软件需求。
-     * Ask user to decide to whether change related story after the user requirement changed.
-     *
-     * @param  int    $storyID
-     * @param  string $result  yes|no
-     * @access public
-     * @return void
-     */
-    public function processStoryChange(int $storyID, string $result = 'yes')
-    {
-        $this->commonAction($storyID);
-        $story = $this->story->getByID($storyID);
-
-        if($result == 'no')
-        {
-            $this->dao->update(TABLE_STORY)->set('URChanged')->eq(0)->where('id')->eq($storyID)->exec();
-            return $this->send(array('result' => 'success', 'load' => true, 'closeModal' => true));
-        }
-
-        $this->view->changedStories = $this->story->getChangedStories($story);
-        $this->view->users          = $this->loadModel('user')->getPairs('noletter');
-        $this->view->storyID        = $storyID;
-        $this->display();
+        $this->dao->update(TABLE_STORY)->set('parentVersion')->eq($parent->version)->where('id')->eq($storyID)->exec();
+        return $this->send(array('result' => 'success', 'load' => true, 'closeModal' => true));
     }
 
     /**
@@ -1485,7 +1513,7 @@ class story extends control
             $moduleID = $this->tree->getAllChildID($moduleID);
         }
 
-        $stories = $this->story->getExecutionStoryPairs($executionID, $productID, $branch, $moduleID, $type, $status);
+        $stories = $this->story->getExecutionStoryPairs($executionID, $productID, $branch, $moduleID, $type, $status, 'story', false);
 
         if($this->app->getViewType() === 'json')
         {
@@ -1503,8 +1531,7 @@ class story extends control
         }
         else
         {
-            $items = array();
-            foreach($stories as $storyID => $storyName) $items[] = array('text' => $storyName, 'value' => $storyID, 'keys' => $storyName);
+            $items = $this->story->addGradeLabel($stories);
             return print(json_encode($items));
         }
     }
@@ -1557,8 +1584,7 @@ class story extends control
             return $this->send($storyList);
         }
 
-        $items = array();
-        foreach($stories as $storyID => $storyName) $items[] = array('text' => $storyName, 'value' => $storyID, 'keys' => $storyName);
+        $items = $this->story->addGradeLabel($stories);
         return print(json_encode($items));
     }
 
@@ -1623,6 +1649,50 @@ class story extends control
         $this->display();
     }
 
+    /**
+     * 获取需求层级下拉列表及默认值。
+     * AJAX: get the grade of a story.
+     *
+     * @param  int    $storyID
+     * @param  string $type
+     * @param  int    $grade
+     * @access public
+     * @return void
+     */
+    public function ajaxGetGrade(int $storyID, string $type = 'story', int $grade = 0)
+    {
+        $story = $this->story->fetchByID($storyID);
+        $gradeOptions = $this->story->getGradeOptions($story, $type, (array)$grade);
+
+        $items = array();
+        foreach($gradeOptions as $grade => $name) $items[] = array('text' => $name, 'value' => $grade);
+
+        return $this->send(array('items' => array_values($items), 'default' => key($gradeOptions)));
+    }
+
+    /**
+     * 检查需求的等级是否超出系统设置。
+     * AJAX: check the grade of a story.
+     *
+     * @param  int    $storyID
+     * @param  int    $newGrade
+     * @access public
+     * @return bool
+     */
+    public function ajaxCheckGrade(int $storyID, int $newGrade)
+    {
+        $oldStory     = $this->story->fetchByID($storyID);
+        $story        = clone $oldStory;
+        $story->grade = $newGrade;
+
+        if($story->grade > $oldStory->grade)
+        {
+            if(!$this->story->checkGrade($story, $oldStory)) return print(json_encode(array('result' => false, 'message' => dao::getError())));
+        }
+
+        return print(json_encode(array('result' => true)));
+    }
+
     /**
      * 获取需求的信息。
      * AJAX: get module of a story.
@@ -1653,13 +1723,21 @@ class story extends control
      * AJAX: get the parent story.
      *
      * @param  int    $productID
-     * @param  string $labelName
+     * @param  int    $storyID
      * @access public
      * @return string
      */
-    public function ajaxGetParentStory(int $productID, string $labelName = '')
+    public function ajaxGetParentStory(int $productID, int $storyID = 0)
     {
-        $stories = $this->story->getParentStoryPairs($productID);
+        if($storyID)
+        {
+            $story   = $this->story->fetchByID($storyID);
+            $stories = $this->story->getParentStoryPairs($story->product, $story->parent, $story->type, $storyID);
+        }
+        else
+        {
+            $stories = $this->story->getParentStoryPairs($productID);
+        }
 
         $items = array();
         foreach($stories as $storyID => $storyTitle)
@@ -1668,7 +1746,7 @@ class story extends control
             $items[] = array('text' => $storyTitle, 'value' => $storyID);
         }
 
-        return print(json_encode(array('items' => $items, 'name' => $labelName)));
+        return $this->send($items);
     }
 
     /**
@@ -1696,7 +1774,7 @@ class story extends control
             foreach($this->post->charts as $chart)
             {
                 $chartFunc   = 'getDataOf' . $chart;
-                $chartData   = $this->story->$chartFunc();
+                $chartData   = $this->story->$chartFunc($storyType);
                 $chartOption = $this->lang->story->report->$chart;
                 if(!empty($chartType)) $chartOption->type = $chartType;
                 $this->story->mergeChartOption($chart);
@@ -1736,12 +1814,6 @@ class story extends control
             $this->product->setMenu($productID, $branchID);
         }
 
-        if($storyType != 'story')
-        {
-            unset($this->lang->story->report->charts['storiesPerPlan']);
-            unset($this->lang->story->report->charts['storiesPerStage']);
-        }
-
         $this->view->title         = $product->name . $this->lang->hyphen . $this->lang->story->reportChart;
         $this->view->productID     = $productID;
         $this->view->branchID      = $branchID;
@@ -1774,7 +1846,7 @@ class story extends control
             $this->loadModel('transfer');
             $postData = form::data($this->config->transfer->form->export)->get();
 
-            $this->session->set('storyTransferParams', array('productID' => $productID, 'executionID' => $executionID));
+            $this->session->set("{$storyType}TransferParams", array('productID' => $productID, 'executionID' => $executionID));
 
             /* 给评审过的人员添加下拉选择，方便再次导入时转换成待评审人员。*/
             /* Add a drop-down selection to the reviewer to facilitate the conversion to the reviewer during import. */
@@ -1798,20 +1870,23 @@ class story extends control
             }
 
             $this->post->set('rows', $this->story->getExportStories($orderBy, $storyType, $postData));
-            $this->fetch('transfer', 'export', 'model=story');
+            $this->fetch('transfer', 'export', "model=$storyType");
         }
 
         $this->story->replaceURLang($storyType);
 
-        $fileName  = $storyType == 'requirement' ? $this->lang->URCommon : $this->lang->SRCommon;
-        $project   = null;
+        $fileName = $this->lang->SRCommon;
+        if($storyType == 'requirement') $fileName = $this->lang->URCommon;
+        if($storyType == 'epic')        $fileName = $this->lang->ERCommon;
+        $project  = null;
         $hasBranch = false;
         if($executionID)
         {
             $execution = $this->loadModel('execution')->getByID($executionID);
-            $fileName  = $execution->name . $this->lang->dash . $fileName;
+            $fileName  = $execution->name . $this->lang->dash . $this->lang->common->story;
             $project   = $execution;
             if($execution->type == 'execution') $project = $this->project->getById($execution->project);
+            $this->lang->story->title = $this->lang->story->name;
 
             $products  = $this->loadModel('product')->getProducts($executionID);
             foreach($products as $product)
@@ -1867,59 +1942,23 @@ class story extends control
      * @param  int    $userID
      * @param  string $id       the id of the select control.
      * @param  int    $appendID
+     * @param  string $storyType
      * @access public
      * @return string
      */
-    public function ajaxGetUserStories(int $userID = 0, string $id = '', int $appendID = 0)
+    public function ajaxGetUserStories(int $userID = 0, string $id = '', int $appendID = 0, $storyType = 'story')
     {
         if(empty($userID)) $userID = $this->app->user->id;
         $user    = $this->loadModel('user')->getById($userID, 'id');
-        $stories = $this->story->getUserStoryPairs($user->account, 10, 'story', '', $appendID);
+        $stories = $this->story->getUserStoryPairs($user->account, 10, $storyType, '', $appendID);
 
         $items = array();
         foreach($stories as $storyID => $storyTitle) $items[] = array('text' => $storyTitle, 'value' => $storyID);
 
-        $fieldName = $id ? "stories[$id]" : 'story';
+        $fieldName = $id ? "stories[$id]" : $storyType;
         return print(json_encode(array('name' => $fieldName, 'items' => $items)));
     }
 
-    /**
-     * 通过AJAX方式获取需求的状态。
-     * AJAX: get story status.
-     *
-     * @param  string $method
-     * @param  string $params
-     * @access public
-     * @return void
-     */
-    public function ajaxGetStatus(string $method, string $params = '')
-    {
-        parse_str(str_replace(',', '&', $params), $params);
-        $status = '';
-        if($method == 'create')
-        {
-            $status = 'draft';
-            if(!empty($params['needNotReview'])) $status = 'active';
-            if(!empty($params['project']))       $status = 'active';
-            if($this->story->checkForceReview()) $status = 'draft';
-        }
-        elseif($method == 'change')
-        {
-            $oldStory = $this->dao->findById((int)$params['storyID'])->from(TABLE_STORY)->fetch();
-            $status   = $oldStory->status;
-            if($params['changing'] and $oldStory->status == 'active' and empty($params['needNotReview']))  $status = 'changing';
-            if($params['changing'] and $oldStory->status == 'active' and $this->story->checkForceReview()) $status = 'changing';
-            if($params['changing'] and $oldStory->status == 'draft' and $params['needNotReview']) $status = 'active';
-        }
-        elseif($method == 'review')
-        {
-            $oldStory = $this->dao->findById((int)$params['storyID'])->from(TABLE_STORY)->fetch();
-            $status   = $oldStory->status;
-            if($params['result'] == 'revert') $status = 'active';
-        }
-        echo $status;
-    }
-
     /**
      * 用AJAX方式获取需求的指派给。
      * AJAX: get story assignee.
@@ -1943,10 +1982,11 @@ class story extends control
 
         if($type == 'review')
         {
+            $moduleName      = $this->app->rawModule;
             $story           = $this->story->getByID($storyID);
             $reviewers       = $this->story->getReviewerPairs($storyID, $story->version);
             $isChanged       = $story->changedBy ? true : false;
-            $superReviewers  = trim(zget($this->config->story, 'superReviewers', ''), ',');
+            $superReviewers  = trim(zget($this->config->{$moduleName}, 'superReviewers', ''), ',');
             $isSuperReviewer = strpos(",{$superReviewers},", ",{$this->app->user->account},") !== false;
 
             if(count($reviewers) == 1)
@@ -1986,32 +2026,6 @@ class story extends control
 
     }
 
-    /**
-     * AJAX: Get user requirements.
-     *
-     * @param  int    $productID
-     * @param  int    $branchID
-     * @param  int    $moduleID
-     * @param  string $requirementList
-     * @access public
-     * @return void
-     */
-    public function ajaxGetURS(int $productID, string $branchID = '0', int $moduleID = 0, string $requirementList = '0')
-    {
-        $moduleIdList = $this->loadModel('tree')->getAllChildId($moduleID);
-
-        $requirements = $this->story->getProductStoryPairs($productID, $branchID, $moduleIdList, 'active,launched', 'id_desc', 0, '', 'requirement');
-
-        $items = array();
-        foreach($requirements as $requirementID => $requirementTitle)
-        {
-            if(empty($requirementID)) continue;
-            $items[] = array('text' => $requirementTitle, 'value' => $requirementID);
-        }
-
-        return print(json_encode(array('name' => 'URS[]', 'multiple' => true, 'defaultValue' => $requirementList, 'items' => $items)));
-    }
-
     /**
      * 移除需求的孪生需求。
      * AJAX: Deleted story twin.
diff --git a/module/story/css/create.ui.css b/module/story/css/create.ui.css
index c6f0e2f5c0..ed02ab7a74 100644
--- a/module/story/css/create.ui.css
+++ b/module/story/css/create.ui.css
@@ -1,4 +1,3 @@
-.input-group .URSBox{width: 100%; padding-right: 1px;}
 .c-actions .btn-link{padding:0 5px;}
 #uploadFiles .upload {width: 100%;}
 .no-background .input-group-addon{background: none;}
diff --git a/module/story/js/batchcreate.ui.js b/module/story/js/batchcreate.ui.js
index 95e8ae83dc..73f049481b 100644
--- a/module/story/js/batchcreate.ui.js
+++ b/module/story/js/batchcreate.ui.js
@@ -1,3 +1,70 @@
+$('input[name=typeSwitcher]').closest('.panel-actions').addClass('row-reverse justify-between w-11/12');
+
+window.setModuleAndPlanByBranch = function(e)
+{
+    const $branch  = $(e.target);
+    const branchID = $branch.val();
+    let $row       = $branch.closest('tr');
+
+    var moduleLink = $.createLink('tree', 'ajaxGetOptionMenu', 'productID=' + productID + '&viewtype=story&branch=' + branchID + '&rootModuleID=0&returnType=html&fieldID=&extra=nodeleted');
+
+    while($row.length)
+    {
+        const $modulePicker = $row.find('[name^=module]').zui('picker');
+        const moduleID      = $row.find('[name^=module]').val();
+        $.getJSON(moduleLink, function(data)
+        {
+            $modulePicker.render({items: data.items})
+            $modulePicker.$.setValue(moduleID);
+        });
+
+        $row = $row.next('tr');
+        if(!$row.find('td[data-name="module"][data-ditto="on"]').length) break;
+    }
+
+    var planLink = $.createLink('productPlan', 'ajaxGetProductPlans', 'productID=' + productID + '&branch=' + branchID);
+    let $rows    = $branch.closest('tr');
+    while($rows.length)
+    {
+        const $planPicker = $rows.find('[name^=plan]').zui('picker');
+        const planID      = $rows.find('[name^=plan]').val();
+        $.getJSON(planLink, function(data)
+        {
+            $planPicker.render({items: data})
+            $planPicker.$.setValue(planID);
+        });
+
+        $rows = $rows.next('tr');
+        if(!$rows.find('td[data-name="plan"][data-ditto="on"]').length) break;
+    }
+}
+
+window.setGrade = function(e)
+{
+    const parent = e.target.value;
+    const link   = $.createLink('story', 'ajaxGetGrade', 'parent=' + parent + '&type=' + storyType);
+    $.get(link, function(data)
+    {
+        data = JSON.parse(data);
+        const currentIndex = $(e.target).closest('tr').attr('data-index');
+        $(e.target).closest('tbody').find('[name^=grade]').each(function(index)
+        {
+            if(index < currentIndex) return;
+            let $grade = $(this).zui('picker');
+            $grade.render({items: data.items});
+            $grade.$.setValue(data.default);
+        })
+    })
+}
+
+window.switchType = function(e)
+{
+    const type = e.target.value;
+    const link = $.createLink(type, 'batchCreate', `productID=${productID}&branchID=${branch}&module=0&storyID=${storyID}&executionID=${executionID}`);
+
+    loadPage(link);
+}
+
 window.changeRegion = function(e)
 {
     const $region  = $(e.target);
@@ -9,5 +76,4 @@ window.changeRegion = function(e)
         $region.closest('tr').find('[name^=lane]').zui('picker').render({items: data.items});
         $region.closest('tr').find('[name^=lane]').zui('picker').$.setValue(laneID);
     });
-
 }
diff --git a/module/story/js/batchedit.ui.js b/module/story/js/batchedit.ui.js
index b5f283a981..c83dba4530 100644
--- a/module/story/js/batchedit.ui.js
+++ b/module/story/js/batchedit.ui.js
@@ -14,6 +14,8 @@ window.renderRowData = function($row, index, story)
         $picker.render(options);
     });
 
+    $row.addClass('story' + story.id);
+
     let $closedReasonTD = $row.find('[data-name="closedReason"]');
     $closedReasonTD.find('.picker-box').on('inited', function(e, info)
     {
@@ -33,9 +35,6 @@ window.renderRowData = function($row, index, story)
             let appendStoryHtml = "<span id='duplicateStoryBox" + story.id + "' " + (story.closedReason != 'duplicate' ? "class='hidden'" : '') + ">";
             appendStoryHtml    += "<div class='form-control picker-box' data-name='duplicateStory' style='padding:0'></div></span>";
 
-            appendStoryHtml += "<span id='childStoryBox" + story.id + "' " + (story.closedReason != 'subdivided' ? "class='hidden'" : '') + ">";
-            appendStoryHtml += "<input type='text' class='form-control form-batch-input' name='childStories[" + story.id + "]' value='" + (typeof story.childStories == 'undefined' ? '' : story.childStories) + "' id='childStories_" + index + "' data-name='childStories' autocomplete='off'>";
-            appendStoryHtml += '</span>';
             $closedReasonTD.find('.input-group').append(appendStoryHtml);
 
             items = [];
@@ -56,9 +55,37 @@ window.renderRowData = function($row, index, story)
     let $module   = $row.find('.form-batch-control[data-name="module"]');
     let $plan     = $row.find('.form-batch-control[data-name="plan"]');
     let $branch   = $row.find('.form-batch-control[data-name="branch"]');
+    let $stage    = $row.find('.form-batch-control[data-name="stage"]');
     let $estimate = $row.find('.form-batch-control[data-name="estimate"]');
     let $roadmap  = $row.find('.form-batch-control[data-name="roadmap"]');
 
+    if($estimate.length > 0 && story.isParent == '1') $estimate.find('input.form-control').attr('readonly', 'readonly');
+
+    if($stage.length > 0)
+    {
+        $stage.find('.picker-box').on('inited', function(e, info)
+        {
+            let $picker = info[0];
+            let options = $picker.options;
+            let items   = options.items;
+
+            if(story.type == 'story' && story.isParent == '0')
+            {
+                /* 叶子需求删除父需求的阶段。*/
+                items.splice(0, 1);
+                items.splice(1, 1);
+                items.splice(11, 1);
+                options.items = items;
+            }
+            else if(story.type != 'story' || story.isParent == '1')
+            {
+                options.disabled = true;
+            }
+
+            $picker.render(options);
+        })
+    }
+
     $title.attr('disabled', 'disabled').attr('title', story.title).after("<input type='hidden' name='title[" + story.id + "]' value='" + story.title + "' />");
     $row.find('.form-control-static[data-name="status"]').addClass('status-' + story.rawStatus);
     if($branch.length > 0)
@@ -118,11 +145,13 @@ window.renderRowData = function($row, index, story)
                 items.push({text: plans[plan], value: plan});
             }
             options.items = items;
-            options.disabled = story.parent < 0 || story.type == 'requirement';
             options.defaultValue = story.plan;
+            options.multiple = story.type != 'story' ? true : false;
 
             $picker.render(options);
         });
+
+        $row.attr('type', story.type);
     }
 
     if($estimate.length > 0)
@@ -202,17 +231,10 @@ window.setDuplicateAndChild = function(resolution, storyID)
 {
     if(resolution == 'duplicate')
     {
-        $('#childStoryBox' + storyID).addClass('hidden');
         $('#duplicateStoryBox' + storyID).removeClass('hidden');
     }
-    else if(resolution == 'subdivided')
-    {
-        $('#duplicateStoryBox' + storyID).addClass('hidden');
-        $('#childStoryBox' + storyID).removeClass('hidden');
-    }
     else
     {
         $('#duplicateStoryBox' + storyID).addClass('hidden');
-        $('#childStoryBox' + storyID).addClass('hidden');
     }
 };
diff --git a/module/story/js/batchtotask.ui.js b/module/story/js/batchtotask.ui.js
index 1bc9ede5ba..095bba5ce5 100644
--- a/module/story/js/batchtotask.ui.js
+++ b/module/story/js/batchtotask.ui.js
@@ -67,3 +67,12 @@ function copyStoryTitle(event)
 
     $($story.closest('tr').find('[name^=name]')).val(storyTitle);
 }
+
+if(hasERUR)
+{
+    zui.Modal.alert(errorERURSplitTask);
+}
+else if(hasParent)
+{
+    zui.Modal.alert(errorParentSplitTask);
+}
diff --git a/module/story/js/common.ui.js b/module/story/js/common.ui.js
index 89b2300ede..86e19d0b66 100644
--- a/module/story/js/common.ui.js
+++ b/module/story/js/common.ui.js
@@ -44,43 +44,6 @@ window.toggleFeedback = function(obj)
     $('.feedbackBox').toggleClass('hidden', !feedbackSource.includes(source));
 }
 
-window.loadURS = function(e)
-{
-    const eventType = typeof e == 'undefined' ? '' : e.type;
-    const productID = $('[name=product]').val();
-
-    let requirementList = $('[name=URS]').val();
-    requirementList = requirementList ? encodeURIComponent(requirementList.join(',')) : '';
-
-    let moduleID = 0;
-    if(eventType == 'change') moduleID = $('[name=module]').val();
-    if(eventType == 'click' && !$(e.target).prop('checked')) moduleID = $('[name=module]').val();
-    if($('#loadURS').prop('checked')) moduleID = 0;
-
-    let branchID  = 0;
-    let $branches = $('input[name^=branches]');
-    if($branches.length > 0)
-    {
-        branchIdList = [];
-        $branches.each(function()
-        {
-            var currentBranch = $(this).val();
-            if(currentBranch == '') currentBranch = 0;
-            if(!branchIdList.includes(currentBranch)) branchIdList.push(currentBranch);
-        })
-        branchID = branchIdList.join(',');
-    }
-
-    var link = $.createLink('story', 'ajaxGetURS', 'productID=' + productID + '&branchID=' + branchID + '&moduleID=' + moduleID + '&requirementList=' + requirementList);
-    $.get(link, function(data)
-    {
-        data = JSON.parse(data);
-        $URS = $('#URS').zui('picker');
-        $URS.render({items: data.items});
-        $URS.$.setValue($URS.$.value);
-    })
-};
-
 window.loadBranchModule = function(productID)
 {
     const branch   = $('[name=branch]').val();
@@ -132,7 +95,6 @@ window.loadBranch = function()
 
     window.loadProductPlans(productID, branch);
     window.loadBranchModule(productID);
-    window.loadURS();
 };
 
 window.setModuleAndPlanByBranch = function(e)
diff --git a/module/story/js/create.ui.js b/module/story/js/create.ui.js
index 0ada4ca70b..1d9fd90ff0 100644
--- a/module/story/js/create.ui.js
+++ b/module/story/js/create.ui.js
@@ -98,3 +98,15 @@ $(document).on('click', 'form.form-setting-form .row label.state', function()
     })
     formSettingLabelClicked = false;
 });
+
+window.loadGrade = function(e)
+{
+    const parent = e.target.value;
+    const link   = $.createLink('story', 'ajaxGetGrade', 'parent=' + parent + '&type=' + storyType);
+    $.getJSON(link, function(data)
+    {
+        const $grade = $('[name=grade]').zui('picker');
+        $grade.render({items: data.items});
+        $grade.$.setValue(data.default);
+    })
+}
diff --git a/module/story/js/edit.ui.js b/module/story/js/edit.ui.js
index a539deb35d..c8312906fc 100644
--- a/module/story/js/edit.ui.js
+++ b/module/story/js/edit.ui.js
@@ -13,29 +13,20 @@ window.loadProduct = function()
         }
     }
 
-    if(parentStory)
+    if(isParent == '1')
     {
-        confirmLoadProduct = confirm(moveChildrenTips);
-        if(!confirmLoadProduct)
-        {
-            $product.$.setValue(oldProductID.toString());
-            return false;
-        }
+        zui.Modal.confirm(moveChildrenTips).then((result) => {
+            if(!result)
+            {
+                $product.$.setValue(oldProductID.toString(), true);
+                loadProductBranches(oldProductID);
+                return false;
+            }
+        });
     }
 
     loadProductBranches(productID);
     loadProductReviewers(productID);
-    loadURS();
-
-    if(storyType == 'story')
-    {
-        var storyLink = $.createLink('story', 'ajaxGetParentStory', 'productID=' + productID + '&labelName=parent');
-        var $parent   = $('#parent').zui('picker');
-        $.get(storyLink, function(data)
-        {
-            $parent.render(JSON.parse(data));
-        });
-    }
 }
 
 window.linkStories = function(e)
@@ -116,7 +107,7 @@ function loadProductBranches(productID)
         if(data && data != '[]')
         {
             $branchBox.html("<div class='picker-box' id='branch'></div>").removeClass('hidden');
-            $branch = new zui.Picker('.branchIdBox #branch', {items: JSON.parse(data), name: 'branch'});
+            $branch = new zui.Picker('.branchIdBox #branch', {items: JSON.parse(data), name: 'branch', defaultValue: 0});
             branch  = $branch.$.value;
         }
     });
@@ -145,3 +136,33 @@ function loadProductReviewers(productID)
         if(needNotReview) $('.reviewerBox #reviewer').attr('disabled', 'disabled');
     });
 }
+
+window.loadGrade = function(e)
+{
+    let parent = e.target.value;
+    let link   = $.createLink('story', 'ajaxGetGrade', 'parent=' + parent + '&type=' + storyType);
+    $.getJSON(link, function(options){
+        const checkLink = $.createLink('story', 'ajaxCheckGrade', 'id=' + storyID + '&grade=' + options.default);
+        $.getJSON(checkLink, function(data){
+            if(data.result)
+            {
+                const $grade = $('[name=grade]').zui('picker');
+                $grade.render({items: options.items});
+                $grade.$.setValue(options.default);
+            }
+            else
+            {
+                zui.Modal.alert(data.message.grade);
+                const $parent = $('[name=parent]').zui('picker');
+                $parent.$.setValue(oldParent, true);
+
+                let link = $.createLink('story', 'ajaxGetGrade', 'parent=' + oldParent + '&type=' + storyType);
+                $.getJSON(link, function(options){
+                    const $grade = $('[name=grade]').zui('picker');
+                    $grade.render({items: options.items});
+                    $grade.$.setValue(oldGrade);
+                });
+            }
+        });
+    })
+}
diff --git a/module/story/js/report.ui.js b/module/story/js/report.ui.js
index ff9d1e0ecb..5a160c62d1 100644
--- a/module/story/js/report.ui.js
+++ b/module/story/js/report.ui.js
@@ -33,5 +33,5 @@ function initReport()
     {
         if($(this).prop('checked')) form.append('charts[]', $(this).val());
     })
-    postAndLoadPage($.createLink('story', 'report', params + '&chartType=' + chartType + '&projectID=' + projectID), form, '#report');
+    postAndLoadPage($.createLink(storyType, 'report', params + '&chartType=' + chartType + '&projectID=' + projectID), form, '#report');
 }
diff --git a/module/story/js/review.ui.js b/module/story/js/review.ui.js
index 0a22acb36e..da1a8b16df 100644
--- a/module/story/js/review.ui.js
+++ b/module/story/js/review.ui.js
@@ -13,14 +13,12 @@ window.switchShow = function(obj)
     {
         $('#rejectedReasonBox').addClass('hidden');
         $('#duplicateStoryBox').addClass('hidden');
-        $('#childStoriesBox').addClass('hidden');
         if(isLastOne) $('#assignedToBox').removeClass('hidden');
     }
     else if(result == 'clarify')
     {
         $('#rejectedReasonBox').addClass('hidden');
         $('#duplicateStoryBox').addClass('hidden');
-        $('#childStoriesBox').addClass('hidden');
         $('#rejectedReasonBox').addClass('hidden');
         if(isLastOne) $('#assignedToBox').removeClass('hidden');
     }
@@ -28,7 +26,6 @@ window.switchShow = function(obj)
     {
         $('#rejectedReasonBox').addClass('hidden');
         $('#duplicateStoryBox').addClass('hidden');
-        $('#childStoriesBox').addClass('hidden');
         $('#rejectedReasonBox').addClass('hidden');
         if(isLastOne) $('#assignedToBox').removeClass('hidden');
         if(result == 'pass')
@@ -43,5 +40,4 @@ window.setStory = function(obj)
 {
     var reason = $(obj).val();
     $('#duplicateStoryBox').toggleClass('hidden', reason != 'duplicate');
-    $('#childStoriesBox').toggleClass('hidden', reason != 'subdivided');
 }
diff --git a/module/story/js/view.ui.js b/module/story/js/view.ui.js
index cad7658538..a415ffc44f 100644
--- a/module/story/js/view.ui.js
+++ b/module/story/js/view.ui.js
@@ -1,3 +1,15 @@
+$(document).on('mouseenter', '.detail-side .tab-pane ul li', function(e)
+{
+    $(this).find('.unlink').removeClass('hidden');
+    e.stopPropagation();
+});
+
+$(document).on('mouseleave', '.detail-side .tab-pane ul li', function(e)
+{
+    $(this).find('.unlink').addClass('hidden');
+    e.stopPropagation();
+});
+
 window.ajaxDelete = function(storyID)
 {
     zui.Modal.confirm({message: confirmDeleteTip, icon:'icon-exclamation-sign', iconClass: 'warning-pale rounded-full icon-2x'}).then((res) =>
diff --git a/module/story/lang/de.php b/module/story/lang/de.php
index c67b4670c4..08ba0ad708 100644
--- a/module/story/lang/de.php
+++ b/module/story/lang/de.php
@@ -40,7 +40,7 @@ $lang->story->unlink             = 'Unlink';
 $lang->story->track              = 'Track';
 $lang->story->trackAB            = 'Track';
 $lang->story->processStoryChange = 'Confirm Story Change';
-$lang->story->splitRequirent     = 'Decompose';
+$lang->story->split              = 'Decompose';
 $lang->story->close              = 'Schließen';
 $lang->story->batchClose         = 'Mehere schließen';
 $lang->story->activate           = 'Aktivieren';
@@ -56,8 +56,8 @@ $lang->story->caseCount          = 'Fälle';
 $lang->story->taskCountAB        = 'T';
 $lang->story->bugCountAB         = 'B';
 $lang->story->caseCountAB        = 'C';
-$lang->story->linkStory          = "Link {$lang->SRCommon}";
-$lang->story->unlinkStory        = "Verknüpfung aufheben {$lang->SRCommon}";
+$lang->story->linkStory          = "Link Story";
+$lang->story->unlinkStory        = "Verknüpfung aufheben story";
 $lang->story->linkStoriesAB      = "Link {$lang->SRCommon}";
 $lang->story->linkRequirementsAB = "Link {$lang->URCommon}";
 $lang->story->export             = "Daten exportieren";
@@ -70,6 +70,9 @@ $lang->story->batchChangeBranch  = "Mehere Branches ändern";
 $lang->story->batchChangeStage   = "Mehere Phasen ändern";
 $lang->story->batchAssignTo      = "Mehere zuordnen";
 $lang->story->batchChangeModule  = "Mehere Module ändern";
+$lang->story->batchChangeParent  = "Batch Change Parent";
+$lang->story->batchChangeGrade   = "Batch Change Grade";
+$lang->story->changeParent       = "Change Parent";
 $lang->story->viewAll            = "Alle";
 $lang->story->toTask             = 'Convert to Task';
 $lang->story->batchToTask        = 'Batch Convert to Task';
@@ -84,11 +87,13 @@ $lang->story->relieved           = 'Relieved';
 $lang->story->relievedTwins      = 'Relieved Twins';
 $lang->story->loadAllStories     = 'All';
 $lang->story->hasDividedTask     = 'has divided task';
+$lang->story->viewAllGrades      = 'View All Grades';
 $lang->story->codeBranch         = 'Code branch';
 $lang->story->unlinkBranch       = 'Unlink code branch';
 $lang->story->branchName         = 'Branch Name';
 $lang->story->branchFrom         = 'Create from';
 $lang->story->codeRepo           = 'Code Library';
+$lang->story->viewByType         = "View By %s";
 
 $lang->story->editAction      = "Edit {$lang->SRCommon}";
 $lang->story->changeAction    = "Change Story";
@@ -101,7 +106,6 @@ $lang->story->deleteAction    = "Delete Story";
 $lang->story->exportAction    = "Export Story";
 $lang->story->reportAction    = "Story Report";
 
-$lang->story->skipStory        = "{$lang->SRCommon} %s is parent stories, and this operation has been filtered.";
 $lang->story->closedStory      = "{$lang->SRCommon} %s is closed, and this operation has been filtered.";
 $lang->story->batchToTaskTips  = "Only active {$lang->SRCommon} can be converted into tasks.";
 $lang->story->successToTask    = "Converted to task.";
@@ -120,8 +124,13 @@ $lang->story->batchEditTip        = "{$lang->SRCommon} %sis twin stories, and th
 
 $lang->story->id               = 'ID';
 $lang->story->parent           = 'Parent';
+$lang->story->isParent         = 'Is Parent';
+$lang->story->grade            = 'Grade';
+$lang->story->gradeName        = 'Grade Name';
+$lang->story->path             = 'Path';
 $lang->story->product          = $lang->productCommon;
 $lang->story->project          = $lang->projectCommon;
+$lang->story->execution        = "Execution";
 $lang->story->branch           = "Branch/Platform";
 $lang->story->module           = 'Module';
 $lang->story->moduleAB         = 'Module';
@@ -130,6 +139,7 @@ $lang->story->source           = 'Von';
 $lang->story->sourceNote       = 'Hinweis';
 $lang->story->fromBug          = 'Von Bug';
 $lang->story->title            = 'Titel';
+$lang->story->name             = "Name";
 $lang->story->type             = "Story/Requirement";
 $lang->story->category         = 'Category';
 $lang->story->color            = 'Color';
@@ -176,6 +186,7 @@ $lang->story->plan             = 'Plan';
 $lang->story->planAB           = 'Plan';
 $lang->story->comment          = 'Kommentar';
 $lang->story->children         = "Child {$lang->SRCommon}";
+$lang->story->childItem        = "Child Item";
 $lang->story->childrenAB       = "C";
 $lang->story->linkStories      = 'Story verknüpfen';
 $lang->story->linkRequirements = "Linked {$lang->URCommon}";
@@ -212,6 +223,13 @@ $lang->story->estimateUnit     = "(Unit: {$lang->story->hour})";
 $lang->story->ditto       = 'Dito';
 $lang->story->dittoNotice = "This story is not linked to the same {$lang->productCommon} as the last one is!";
 
+$lang->story->viewTypeList['tiled'] = 'Tiled';
+$lang->story->viewTypeList['tree']  = 'Tree';
+
+if($config->enableER) $lang->story->typeList['epic']        = $lang->ERCommon;
+if($config->URAndSR)  $lang->story->typeList['requirement'] = $lang->URCommon;
+$lang->story->typeList['story'] = $lang->SRCommon;
+
 $lang->story->needNotReviewList[0] = 'Need Review';
 $lang->story->needNotReviewList[1] = 'Need Not Review';
 
@@ -232,14 +250,21 @@ if($config->systemMode == 'PLM')
 }
 
 $lang->story->stageList['']           = '';
+$lang->story->stageList['defining']   = 'Defining';
 $lang->story->stageList['wait']       = 'Wartend';
+$lang->story->stageList['planning']   = 'Planning';
 $lang->story->stageList['planned']    = 'Geplant';
 $lang->story->stageList['projected']  = 'Projektiert';
+$lang->story->stageList['designing']  = 'Designing';
+$lang->story->stageList['designed']   = 'Designed';
 $lang->story->stageList['developing'] = 'Entwicklung';
 $lang->story->stageList['developed']  = 'Entwickelt';
 $lang->story->stageList['testing']    = 'Testen';
 $lang->story->stageList['tested']     = 'Getestet';
 $lang->story->stageList['verified']   = 'Akzepiert';
+$lang->story->stageList['rejected']   = 'Verify Rejected';
+$lang->story->stageList['delivering'] = 'Delivering';
+$lang->story->stageList['pending']    = 'Release Pending';
 $lang->story->stageList['released']   = 'Freigegeben';
 $lang->story->stageList['closed']     = 'Geschlossen';
 
@@ -312,37 +337,51 @@ $lang->story->lblActivate = 'Aktivieren';
 $lang->story->lblClose    = 'Close';
 $lang->story->lblTBC      = 'Task/Bug/Case';
 
-$lang->story->checkAffection       = 'Impact';
-$lang->story->affectedProjects     = "{$lang->project->common}s/{$lang->execution->common}s";
-$lang->story->affectedBugs         = 'Bug';
-$lang->story->affectedCases        = 'Fall';
-$lang->story->affectedTwins        = 'Zwillinge';
+$lang->story->checkAffection         = 'Impact';
+$lang->story->affectedProjects       = "{$lang->project->common}s/{$lang->execution->common}s";
+$lang->story->affectedBugs           = 'Bug';
+$lang->story->affectedCases          = 'Fall';
+$lang->story->affectedTwins          = 'Zwillinge';
 
-$lang->story->specTemplate         = "Als ein < type of user >, möchte ich < some goal > dass < some reason >.";
-$lang->story->needNotReview        = 'Keine Prüfung';
-$lang->story->successSaved         = "Story wurde gespeichrt!";
-$lang->story->confirmDelete        = "Möchten Sie diese Story löschen?";
-$lang->story->confirmRecall        = "Do you want to recall this story?";
-$lang->story->errorEmptyChildStory = '『Unterteilte Story』 darf nicht leer sein.';
-$lang->story->errorNotSubdivide    = "If the status is not active, or the stage is not wait, or a sub story, it cannot be subdivided.";
-$lang->story->errorEmptyReviewedBy = "『{$lang->story->reviewers}』darf nicht leer sein.";
-$lang->story->mustChooseResult     = 'Ergebnis wählen';
-$lang->story->mustChoosePreVersion = 'Version wählen um es umzukhren.';
-$lang->story->noStory              = 'Keine Stories. ';
-$lang->story->noRequirement        = 'No Requirements';
-$lang->story->ignoreChangeStage    = 'The status of %s is Draft or Closed. This operation has been filtered.';
-$lang->story->cannotDeleteParent   = "Can not delete parent {$lang->SRCommon}";
-$lang->story->moveChildrenTips     = "Its Child {$lang->SRCommon} will be moved to the selected {$lang->productCommon} when editing the linked {$lang->productCommon} of Parent {$lang->SRCommon}.";
-$lang->story->changeTips           = 'The story associated with the requirements to change, click "Cancel" ignore this change, click "Confirm" to change the story.';
-$lang->story->estimateMustBeNumber = 'Estimate value must be number.';
-$lang->story->estimateMustBePlus   = 'Estimated value cannot be negative';
-$lang->story->confirmChangeBranch  = $lang->SRCommon . ' %s is linked to the plan of its linked branch. If the branch is edited, ' . $lang->SRCommon . ' will be removed from the plan of its linked branch. Do you want to continue edit ' . $lang->SRCommon . '?';
-$lang->story->confirmChangePlan    = $lang->SRCommon . ' %s is linked to the branch of its plan. If the branch is edited, ' . $lang->SRCommon . ' will be removed from the plan. Do you want to continue edit branch ?';
-$lang->story->errorDuplicateStory  = $lang->SRCommon . '%s not exist';
-$lang->story->confirmRecallChange  = "After undo the change, the story content will revert to the version before the change. Are you sure you want to undo?";
-$lang->story->confirmRecallReview  = "Are you sure you want to withdraw the review?";
-$lang->story->noStoryToTask        = "Only the activated {$lang->SRCommon} can be converted into a task!";
-$lang->story->ignoreClosedStory    = "{$lang->SRCommon} %s status is closed, and the operation has been filtered.";
+$lang->story->specTemplate           = "Als ein < type of user >, möchte ich < some goal > dass < some reason >.";
+$lang->story->needNotReview          = 'Keine Prüfung';
+$lang->story->childStoryTitle        = 'Contains %s sub-requirements, of which %s have been finished';
+$lang->story->childTaskTitle         = 'Contains %s tasks, of which %s have been finished';
+$lang->story->successSaved           = "Story wurde gespeichrt!";
+$lang->story->confirmDelete          = "Möchten Sie diese Story löschen?";
+$lang->story->confirmRecall          = "Do you want to recall this story?";
+$lang->story->errorEmptyChildStory   = '『Unterteilte Story』 darf nicht leer sein.';
+$lang->story->errorNotSubdivide      = "If the status is not active, or the stage is not wait, or a sub story, it cannot be subdivided.";
+$lang->story->errorMaxGradeSubdivide = "The current story's grade exceeds the system setting, so it cannot be subdivided same type story.";
+$lang->story->errorStepwiseSubdivide = "This requirement type does not allow cross-system splitting. This setting can be changed in the admin.";
+$lang->story->errorCannotSplit       = "This requirement has been split into sub-requirements of this type and cannot be split into requirements of other types.";
+$lang->story->errorParentSplitTask   = "Parent requirements cannot be transferred to tasks, this operation has been filtered.";
+$lang->story->errorERURSplitTask     = "Parent requirements,{$lang->ERCommon} and {$lang->URCommon}cannot be transferred to tasks, this operation has been filtered.";
+$lang->story->errorEmptyReviewedBy   = "『{$lang->story->reviewers}』darf nicht leer sein.";
+$lang->story->mustChooseResult       = 'Ergebnis wählen';
+$lang->story->mustChoosePreVersion   = 'Version wählen um es umzukhren.';
+$lang->story->noEpic                 = "No Epics.";
+$lang->story->noStory                = 'Keine Stories. ';
+$lang->story->noRequirement          = 'No Requirements.';
+$lang->story->ignoreChangeStage      = 'The status of %s is Draft or Closed. This operation has been filtered.';
+$lang->story->cannotDeleteParent     = "Can not delete parent {$lang->SRCommon}";
+$lang->story->moveChildrenTips       = "Are you sure to modify the product? After modification, all sub-level requirements of the requirement will also be changed accordingly.";
+$lang->story->changeTips             = 'The story associated with the requirements to change, click "Cancel" ignore this change, click "Confirm" to change the story.';
+$lang->story->estimateMustBeNumber   = 'Estimate value must be number.';
+$lang->story->estimateMustBePlus     = 'Estimated value cannot be negative';
+$lang->story->confirmChangeBranch    = $lang->SRCommon . ' %s is linked to the plan of its linked branch. If the branch is edited, ' . $lang->SRCommon . ' will be removed from the plan of its linked branch. Do you want to continue edit ' . $lang->SRCommon . '?';
+$lang->story->confirmChangePlan      = $lang->SRCommon . ' %s is linked to the branch of its plan. If the branch is edited, ' . $lang->SRCommon . ' will be removed from the plan. Do you want to continue edit branch ?';
+$lang->story->errorDuplicateStory    = $lang->SRCommon . '%s not exist';
+$lang->story->confirmRecallChange    = "After undo the change, the story content will revert to the version before the change. Are you sure you want to undo?";
+$lang->story->confirmRecallReview    = "Are you sure you want to withdraw the review?";
+$lang->story->noStoryToTask          = "Only the activated {$lang->SRCommon} can be converted into a task!";
+$lang->story->ignoreClosedStory      = "{$lang->SRCommon} %s status is closed, and the operation has been filtered.";
+$lang->story->changeProductTips      = "Are you sure you want to modify the product? After modification, all sub-level requirements of the requirement will also be changed accordingly.";
+$lang->story->gradeOverflow          = "The system detects that the maximum level of sub-requirements under this requirement is %s. After synchronization modification, it is %s. It exceeds the level range set by the system and cannot be modified.";
+$lang->story->batchGradeOverflow     = "After the parent requirement of %s is modified, the level of its child requirement will exceed the level range set by the system, and this modification has ignored it.";
+$lang->story->batchGradeSameRoot     = 'The requirements %s has a parent-child relationship and the requirement grade will not be modified.';
+$lang->story->batchGradeGtParent     = 'The grade of %s requirements cannot be higher than its parent requirement, and it has been ignored in this modification.';
+$lang->story->batchParentError       = "The parent requirement of %s requirement cannot be itself or its child requirement, which has been ignored in this modification.";
 
 $lang->story->form = new stdclass();
 $lang->story->form->area     = 'Story Bereich';
@@ -356,6 +395,7 @@ $lang->story->action->rejectreviewed        = array('main' => '$date, geprüft v
 $lang->story->action->recalled              = array('main' => '$date, recalled by <strong>$actor</strong>.');
 $lang->story->action->closed                = array('main' => '$date, geschlossen von <strong>$actor</strong>. Der Grund ist <strong>$extra</strong> $appendLink.', 'extra' => 'reasonList');
 $lang->story->action->closedbysystem        = array('main' => '$date, The system determines that the parent story is automatically closed because all child stories are closed.');
+$lang->story->action->closedbyparent        = array('main' => '$date, The system determines that the child story is automatically closed because its parent story is closed.');
 $lang->story->action->reviewpassed          = array('main' => '$date, determined by the <strong>System</strong>. The result is <strong>Pass</strong>.');
 $lang->story->action->reviewrejected        = array('main' => '$date, closed by <strong>System</strong>. The reason is <strong>Rejection</strong>.');
 $lang->story->action->reviewclarified       = array('main' => '$date, determined by the <strong>System</strong>. The result is <strong>To Be Clarified</strong>. Please re-initiate the review after edit.');
@@ -379,29 +419,31 @@ $lang->story->action->unlinkrelatedstory    = array('main' => '$date, Verknüpfu
 $lang->story->action->unlinkchildstory      = array('main' => '$date, Verknüpfung aufgelöst durch <strong>$actor</strong> Story <strong>$extra</strong>.');
 $lang->story->action->recalledchange        = array('main' => '$date, Undo changes by <strong>\$actor</strong>.');
 $lang->story->action->synctwins             = array('main' => "\$date, the system judges that this story is adjusted synchronously due to the \$operate of twin story <strong>\$extra</strong>.", 'operate' => 'operateList');
+$lang->story->action->syncgrade             = array('main' => "\$date, the system judges that this story's parent grade changed，this story grade synchronously changed to <strong>\$extra</strong>.");
 $lang->story->action->linked2roadmap        = array('main' => '$date, linked by <strong>$actor</strong> to Roadmap <strong>$extra</strong>');
 $lang->story->action->unlinkedfromroadmap   = array('main' => '$date, unlinked by <strong>$actor</strong> from Roadmap <strong>$extra</strong>.');
 $lang->story->action->changedbycharter      = array('main' => '$date, launched by <strong>$actor</strong> for charter <strong>$extra</strong>, Synchronously adjust the story status to launched.');
 
 /* Statistical statement. */
 $lang->story->report = new stdclass();
-$lang->story->report->common = 'Bericht';
-$lang->story->report->select = 'Stories gruppieren nach';
-$lang->story->report->create = 'Erzeugen';
-$lang->story->report->value  = 'Story Anzahl';
+$lang->story->report->common = 'Report';
+$lang->story->report->select = 'Select Report Type';
+$lang->story->report->create = 'Create Report';
+$lang->story->report->value  = 'Reports';
 
-$lang->story->report->charts['storiesPerProduct']      = 'nach ' . $lang->productCommon;
-$lang->story->report->charts['storiesPerModule']       = 'nach Modul';
-$lang->story->report->charts['storiesPerSource']       = 'nach Source';
-$lang->story->report->charts['storiesPerPlan']         = 'nach Plan';
-$lang->story->report->charts['storiesPerStatus']       = 'nach Status';
-$lang->story->report->charts['storiesPerStage']        = 'nach Phase';
-$lang->story->report->charts['storiesPerPri']          = 'nach Priorität';
-$lang->story->report->charts['storiesPerEstimate']     = 'nach Stunden';
-$lang->story->report->charts['storiesPerOpenedBy']     = 'nach Ersteller';
-$lang->story->report->charts['storiesPerAssignedTo']   = 'nach Zuständiger';
-$lang->story->report->charts['storiesPerClosedReason'] = 'nach Grund';
-$lang->story->report->charts['storiesPerChange']       = 'nach Änderungszeit';
+$lang->story->report->charts['storiesPerProduct']      = 'Group by ' . $lang->productCommon . ' Story';
+$lang->story->report->charts['storiesPerModule']       = 'Group by Module Story';
+$lang->story->report->charts['storiesPerSource']       = 'Group by Story Source';
+$lang->story->report->charts['storiesPerPlan']         = 'Group by Plan';
+$lang->story->report->charts['storiesPerStatus']       = 'Group by Status';
+$lang->story->report->charts['storiesPerStage']        = 'Group by Phase';
+$lang->story->report->charts['storiesPerPri']          = 'Group by Priority';
+$lang->story->report->charts['storiesPerEstimate']     = 'Group by Estimates';
+$lang->story->report->charts['storiesPerOpenedBy']     = 'Group by CreatedBy';
+$lang->story->report->charts['storiesPerAssignedTo']   = 'Group by AssignedTo';
+$lang->story->report->charts['storiesPerClosedReason'] = 'Group by Closed Reason';
+$lang->story->report->charts['storiesPerChange']       = 'Group by Changed Story';
+$lang->story->report->charts['storiesPerGrade']        = 'Group by Story Grade';
 
 $lang->story->report->options = new stdclass();
 $lang->story->report->options->graph  = new stdclass();
@@ -421,19 +463,21 @@ $lang->story->report->storiesPerAssignedTo   = new stdclass();
 $lang->story->report->storiesPerClosedReason = new stdclass();
 $lang->story->report->storiesPerEstimate     = new stdclass();
 $lang->story->report->storiesPerChange       = new stdclass();
+$lang->story->report->storiesPerGrade        = new stdclass();
 
 $lang->story->report->storiesPerProduct->item      = $lang->productCommon;
-$lang->story->report->storiesPerModule->item       = 'Modul';
+$lang->story->report->storiesPerModule->item       = 'Module';
 $lang->story->report->storiesPerSource->item       = 'Source';
 $lang->story->report->storiesPerPlan->item         = 'Plan';
 $lang->story->report->storiesPerStatus->item       = 'Status';
 $lang->story->report->storiesPerStage->item        = 'Phase';
-$lang->story->report->storiesPerPri->item          = 'Priorität';
-$lang->story->report->storiesPerOpenedBy->item     = 'Konto';
-$lang->story->report->storiesPerAssignedTo->item   = 'Benutzer';
-$lang->story->report->storiesPerClosedReason->item = 'Grund';
-$lang->story->report->storiesPerEstimate->item     = 'Stunden';
-$lang->story->report->storiesPerChange->item       = 'Änderung';
+$lang->story->report->storiesPerPri->item          = 'Priority';
+$lang->story->report->storiesPerOpenedBy->item     = 'OpenedBy';
+$lang->story->report->storiesPerAssignedTo->item   = 'AssignedTo';
+$lang->story->report->storiesPerClosedReason->item = 'Reason';
+$lang->story->report->storiesPerEstimate->item     = 'Estimates';
+$lang->story->report->storiesPerChange->item       = 'Changed Story';
+$lang->story->report->storiesPerGrade->item        = 'Grade';
 
 $lang->story->report->storiesPerProduct->graph      = new stdclass();
 $lang->story->report->storiesPerModule->graph       = new stdclass();
@@ -447,19 +491,21 @@ $lang->story->report->storiesPerAssignedTo->graph   = new stdclass();
 $lang->story->report->storiesPerClosedReason->graph = new stdclass();
 $lang->story->report->storiesPerEstimate->graph     = new stdclass();
 $lang->story->report->storiesPerChange->graph       = new stdclass();
+$lang->story->report->storiesPerGrade->graph        = new stdclass();
 
 $lang->story->report->storiesPerProduct->graph->xAxisName      = $lang->productCommon;
-$lang->story->report->storiesPerModule->graph->xAxisName       = 'Modul';
+$lang->story->report->storiesPerModule->graph->xAxisName       = 'Module';
 $lang->story->report->storiesPerSource->graph->xAxisName       = 'Source';
 $lang->story->report->storiesPerPlan->graph->xAxisName         = 'Plan';
 $lang->story->report->storiesPerStatus->graph->xAxisName       = 'Status';
 $lang->story->report->storiesPerStage->graph->xAxisName        = 'Phase';
-$lang->story->report->storiesPerPri->graph->xAxisName          = 'Priorität';
-$lang->story->report->storiesPerOpenedBy->graph->xAxisName     = 'Ersteller';
-$lang->story->report->storiesPerAssignedTo->graph->xAxisName   = 'Zuständiger';
-$lang->story->report->storiesPerClosedReason->graph->xAxisName = 'Grund';
-$lang->story->report->storiesPerEstimate->graph->xAxisName     = 'Stunden ';
-$lang->story->report->storiesPerChange->graph->xAxisName       = 'Änderung';
+$lang->story->report->storiesPerPri->graph->xAxisName          = 'Priority';
+$lang->story->report->storiesPerOpenedBy->graph->xAxisName     = 'CreatedBy';
+$lang->story->report->storiesPerAssignedTo->graph->xAxisName   = 'AssignedTo';
+$lang->story->report->storiesPerClosedReason->graph->xAxisName = 'Close Reason';
+$lang->story->report->storiesPerEstimate->graph->xAxisName     = 'Estimates ';
+$lang->story->report->storiesPerChange->graph->xAxisName       = 'Change Times';
+$lang->story->report->storiesPerGrade->graph->xAxisName        = 'Change Times';
 
 $lang->story->placeholder = new stdclass();
 $lang->story->placeholder->estimate = $lang->story->hour;
@@ -499,9 +545,8 @@ $lang->story->recallTip = array();
 $lang->story->recallTip['actived'] = 'The Story has not initiated a review process and no undo action is required.';
 
 $lang->story->subDivideTip = array();
-$lang->story->subDivideTip['subStory']   = 'The Sub-stories cannot be subdivided.';
 $lang->story->subDivideTip['notWait']    = 'The Story has been %s and cannot be subdivided.';
-$lang->story->subDivideTip['notActive']  = "The %s is not active and cannot be subdivided.";
+$lang->story->subDivideTip['notActive']  = "The story is not active and cannot be subdivided.";
 $lang->story->subDivideTip['twinsSplit'] = 'The Twins Story cannot be subdivided.';
 
 $lang->story->featureBar['browse']['all']       = $lang->all;
@@ -520,31 +565,6 @@ $lang->story->operateList['submitreview']   = 'submit review';
 $lang->story->operateList['recalledchange'] = 'recalled change';
 $lang->story->operateList['recalled']       = 'recalled review';
 
-$lang->requirement->common             = $lang->URCommon;
-$lang->requirement->create             = 'Create Requirement';
-$lang->requirement->batchCreate        = "Batch Create";
-$lang->requirement->editAction         = "Edit {$lang->URCommon}";
-$lang->requirement->changeAction       = "Change {$lang->URCommon}";
-$lang->requirement->assignAction       = "Assign {$lang->URCommon}";
-$lang->requirement->reviewAction       = "Review {$lang->URCommon}";
-$lang->requirement->subdivideAction    = "Subdivide {$lang->URCommon}";
-$lang->requirement->closeAction        = "Close {$lang->URCommon}";
-$lang->requirement->activateAction     = "Activate {$lang->URCommon}";
-$lang->requirement->deleteAction       = "Delete {$lang->URCommon}";
-$lang->requirement->exportAction       = "Export {$lang->URCommon}";
-$lang->requirement->reportAction       = "Report";
-$lang->requirement->recall             = $lang->story->recallAction;
-$lang->requirement->batchReview        = 'Batch Review';
-$lang->requirement->batchEdit          = "Batch Edit";
-$lang->requirement->batchClose         = 'Batch Close';
-$lang->requirement->view               = 'Requirement Detail';
-$lang->requirement->linkRequirementsAB = "Link {$lang->URCommon}";
-$lang->requirement->batchChangeBranch  = "Batch Change Branches";
-$lang->requirement->batchAssignTo      = "Batch Assign";
-$lang->requirement->batchChangeModule  = "Batch Change Modules";
-$lang->requirement->submitReview       = $lang->story->submitReview;
-$lang->requirement->linkStory          = 'Link Story';
-
 $lang->story->addBranch      = 'Add %s';
 $lang->story->deleteBranch   = 'Delete %s';
 $lang->story->notice->branch = 'Each branch will establish a requirement. The requirements are twins. The twins requirements are synchronized except for the product, branch, module, plan, and stage fields. You can manually remove the twins relationship later';
@@ -552,3 +572,12 @@ $lang->story->notice->branch = 'Each branch will establish a requirement. The re
 $lang->story->relievedTwinsRelation     = 'Relieved twins relationship';
 $lang->story->relievedTwinsRelationTips = 'After the twins relationship is terminated, it cannot be restored and the shutdown of the requirement is no longer synchronized.';
 $lang->story->changeRelievedTwinsTips   = 'After the twins relationship is terminated, the twin stories are no longer synchronized.';
+
+$lang->story->trackOrderByList['id']       = 'Order by ID';
+$lang->story->trackOrderByList['pri']      = 'Order by priority';
+$lang->story->trackOrderByList['status']   = 'Order by status';
+$lang->story->trackOrderByList['stage']    = 'Order by stage';
+$lang->story->trackOrderByList['category'] = 'Order by category';
+
+$lang->story->trackSortList['asc']  = ' Ascending';
+$lang->story->trackSortList['desc'] = ' Descending';
diff --git a/module/story/lang/en.php b/module/story/lang/en.php
index 93d678a561..0a152462d5 100644
--- a/module/story/lang/en.php
+++ b/module/story/lang/en.php
@@ -40,7 +40,7 @@ $lang->story->unlink             = 'Unlink';
 $lang->story->track              = 'Track';
 $lang->story->trackAB            = 'Track';
 $lang->story->processStoryChange = 'Confirm Story Change';
-$lang->story->splitRequirent     = 'Decompose';
+$lang->story->split              = 'Decompose';
 $lang->story->close              = 'Close';
 $lang->story->batchClose         = 'Batch Close';
 $lang->story->activate           = 'Activate';
@@ -56,8 +56,8 @@ $lang->story->caseCount          = 'Cases';
 $lang->story->taskCountAB        = 'T';
 $lang->story->bugCountAB         = 'B';
 $lang->story->caseCountAB        = 'C';
-$lang->story->linkStory          = "Link {$lang->SRCommon}";
-$lang->story->unlinkStory        = "UnLinked {$lang->SRCommon}";
+$lang->story->linkStory          = "Link Story";
+$lang->story->unlinkStory        = "Do you confirm unlink this story?";
 $lang->story->linkStoriesAB      = "Link {$lang->SRCommon}";
 $lang->story->linkRequirementsAB = "Link {$lang->URCommon}";
 $lang->story->export             = "Export Data";
@@ -70,6 +70,9 @@ $lang->story->batchChangeBranch  = "Batch Change Branches";
 $lang->story->batchChangeStage   = "Batch Change Phases";
 $lang->story->batchAssignTo      = "Batch Assign";
 $lang->story->batchChangeModule  = "Batch Change Modules";
+$lang->story->batchChangeParent  = "Batch Change Parent";
+$lang->story->batchChangeGrade   = "Batch Change Grade";
+$lang->story->changeParent       = "Change Parent";
 $lang->story->viewAll            = "See All";
 $lang->story->toTask             = 'Convert to Task';
 $lang->story->batchToTask        = 'Batch Convert to Task';
@@ -84,11 +87,13 @@ $lang->story->relieved           = 'Relieved';
 $lang->story->relievedTwins      = 'Relieved Twins';
 $lang->story->loadAllStories     = 'All';
 $lang->story->hasDividedTask     = 'has divided task';
+$lang->story->viewAllGrades      = 'View All Grades';
 $lang->story->codeBranch         = 'Code branch';
 $lang->story->unlinkBranch       = 'Unlink code branch';
 $lang->story->branchName         = 'Branch Name';
 $lang->story->branchFrom         = 'Create from';
 $lang->story->codeRepo           = 'Code Library';
+$lang->story->viewByType         = "View By %s";
 
 $lang->story->editAction      = "Edit {$lang->SRCommon}";
 $lang->story->changeAction    = "Change {$lang->SRCommon}";
@@ -101,7 +106,6 @@ $lang->story->deleteAction    = "Delete {$lang->SRCommon}";
 $lang->story->exportAction    = "Export {$lang->SRCommon}";
 $lang->story->reportAction    = "Report";
 
-$lang->story->skipStory        = "{$lang->SRCommon} %s is parent stories, and this operation has been filtered.";
 $lang->story->closedStory      = "{$lang->SRCommon} %s is closed, and this operation has been filtered.";
 $lang->story->batchToTaskTips  = "Only active {$lang->SRCommon} can be converted into tasks.";
 $lang->story->successToTask    = "Converted to task.";
@@ -120,8 +124,13 @@ $lang->story->batchEditTip        = "{$lang->SRCommon} %sis twin stories, and th
 
 $lang->story->id               = 'ID';
 $lang->story->parent           = 'Parent';
+$lang->story->isParent         = 'Is Parent';
+$lang->story->grade            = 'Grade';
+$lang->story->gradeName        = 'Grade Name';
+$lang->story->path             = 'Path';
 $lang->story->product          = $lang->productCommon;
 $lang->story->project          = $lang->projectCommon;
+$lang->story->execution        = "Execution";
 $lang->story->branch           = "Branch/Platform";
 $lang->story->module           = 'Module';
 $lang->story->moduleAB         = 'Module';
@@ -130,6 +139,7 @@ $lang->story->source           = 'From';
 $lang->story->sourceNote       = 'Note';
 $lang->story->fromBug          = 'From Bug';
 $lang->story->title            = 'Title';
+$lang->story->name             = "Name";
 $lang->story->type             = "Story/Requirement";
 $lang->story->category         = 'Category';
 $lang->story->color            = 'Color';
@@ -176,6 +186,7 @@ $lang->story->plan             = 'Linked Plan';
 $lang->story->planAB           = 'Plan';
 $lang->story->comment          = 'Comment';
 $lang->story->children         = "Child {$lang->SRCommon}";
+$lang->story->childItem        = "Child Item";
 $lang->story->childrenAB       = "C";
 $lang->story->linkStories      = 'Linked Story';
 $lang->story->linkRequirements = "Linked {$lang->URCommon}";
@@ -212,6 +223,13 @@ $lang->story->estimateUnit     = "(Unit: {$lang->story->hour})";
 $lang->story->ditto       = 'Ditto';
 $lang->story->dittoNotice = "This story is not linked to the same {$lang->productCommon} as the last one is!";
 
+$lang->story->viewTypeList['tiled'] = 'Tiled';
+$lang->story->viewTypeList['tree']  = 'Tree';
+
+if($config->enableER) $lang->story->typeList['epic']        = $lang->ERCommon;
+if($config->URAndSR)  $lang->story->typeList['requirement'] = $lang->URCommon;
+$lang->story->typeList['story'] = $lang->SRCommon;
+
 $lang->story->needNotReviewList[0] = 'Need Review';
 $lang->story->needNotReviewList[1] = 'No Review';
 
@@ -232,14 +250,21 @@ if($config->systemMode == 'PLM')
 }
 
 $lang->story->stageList['']           = '';
+$lang->story->stageList['defining']   = 'Defining';
 $lang->story->stageList['wait']       = 'Waiting';
+$lang->story->stageList['planning']   = 'Planning';
 $lang->story->stageList['planned']    = 'Planned';
 $lang->story->stageList['projected']  = 'Projected';
+$lang->story->stageList['designing']  = 'Designing';
+$lang->story->stageList['designed']   = 'Designed';
 $lang->story->stageList['developing'] = 'Developing';
 $lang->story->stageList['developed']  = 'Developed';
 $lang->story->stageList['testing']    = 'Testing';
 $lang->story->stageList['tested']     = 'Tested';
 $lang->story->stageList['verified']   = 'Accepted';
+$lang->story->stageList['rejected']   = 'Verify Rejected';
+$lang->story->stageList['delivering'] = 'Delivering';
+$lang->story->stageList['pending']    = 'Release Pending';
 $lang->story->stageList['released']   = 'Released';
 $lang->story->stageList['closed']     = 'Closed';
 
@@ -318,31 +343,45 @@ $lang->story->affectedBugs         = 'Bugs';
 $lang->story->affectedCases        = 'Cases';
 $lang->story->affectedTwins        = 'Twins';
 
-$lang->story->specTemplate         = "As a < type of user >, I want < some goal > so that < some reason >.";
-$lang->story->needNotReview        = 'No Review';
-$lang->story->successSaved         = "Story is saved!";
-$lang->story->confirmDelete        = "Do you want to delete this story?";
-$lang->story->confirmRecall        = "Do you want to recall this story?";
-$lang->story->errorEmptyChildStory = '『Decomposed Stories』canot be blank.';
-$lang->story->errorNotSubdivide    = "If the status is not active, or the stage is not wait, or a sub story, it cannot be subdivided.";
-$lang->story->errorEmptyReviewedBy = "『{$lang->story->reviewers}』canot be blank.";
-$lang->story->mustChooseResult     = 'Select Result';
-$lang->story->mustChoosePreVersion = 'Select a version to revert to.';
-$lang->story->noStory              = 'No stories yet. ';
-$lang->story->noRequirement        = 'No requirements yet. ';
-$lang->story->ignoreChangeStage    = 'The status of %s is Draft or Closed. This operation has been filtered.';
-$lang->story->cannotDeleteParent   = "Can not delete parent {$lang->SRCommon}";
-$lang->story->moveChildrenTips     = "Its Child {$lang->SRCommon} will be moved to the selected {$lang->productCommon} when editing the linked {$lang->productCommon} of Parent {$lang->SRCommon}.";
-$lang->story->changeTips           = 'The story associated with the requirements to change, click "Cancel" ignore this change, click "Confirm" to change the story.';
-$lang->story->estimateMustBeNumber = 'Estimate value must be number.';
-$lang->story->estimateMustBePlus   = 'Estimated value cannot be negative';
-$lang->story->confirmChangeBranch  = $lang->SRCommon . ' %s is linked to the plan of its linked branch. If the branch is edited, ' . $lang->SRCommon . ' will be removed from the plan of its linked branch. Do you want to continue edit ' . $lang->SRCommon . '?';
-$lang->story->confirmChangePlan    = $lang->SRCommon . ' %s is linked to the branch of its plan. If the branch is edited, ' . $lang->SRCommon . ' will be removed from the plan. Do you want to continue edit branch ?';
-$lang->story->errorDuplicateStory  = $lang->SRCommon . '%s not exist';
-$lang->story->confirmRecallChange  = "After undo the change, the story content will revert to the version before the change. Are you sure you want to undo?";
-$lang->story->confirmRecallReview  = "Are you sure you want to withdraw the review?";
-$lang->story->noStoryToTask        = "Only the activated {$lang->SRCommon} can be converted into a task!";
-$lang->story->ignoreClosedStory    = "{$lang->SRCommon} %s status is closed, and the operation has been filtered.";
+$lang->story->specTemplate           = "As a < type of user >, I want < some goal > so that < some reason >.";
+$lang->story->needNotReview          = 'No Review';
+$lang->story->childStoryTitle        = 'Contains %s sub-requirements, of which %s have been finished';
+$lang->story->childTaskTitle         = 'Contains %s tasks, of which %s have been finished';
+$lang->story->successSaved           = "Story is saved!";
+$lang->story->confirmDelete          = "Do you want to delete this story?";
+$lang->story->confirmRecall          = "Do you want to recall this story?";
+$lang->story->errorEmptyChildStory   = '『Decomposed Stories』canot be blank.';
+$lang->story->errorNotSubdivide      = "If the status is not active, or the stage is not wait, or a sub story, it cannot be subdivided.";
+$lang->story->errorMaxGradeSubdivide = "The current story's grade exceeds the system setting, so it cannot be subdivided same type story.";
+$lang->story->errorStepwiseSubdivide = "This requirement type does not allow cross-system splitting. This setting can be changed in the admin.";
+$lang->story->errorCannotSplit       = "This requirement has been split into sub-requirements of this type and cannot be split into requirements of other types.";
+$lang->story->errorParentSplitTask   = "Parent requirements cannot be transferred to tasks, this operation has been filtered.";
+$lang->story->errorERURSplitTask     = "Parent requirements,{$lang->ERCommon} and {$lang->URCommon}cannot be transferred to tasks, this operation has been filtered.";
+$lang->story->errorEmptyReviewedBy   = "『{$lang->story->reviewers}』canot be blank.";
+$lang->story->mustChooseResult       = 'Select Result';
+$lang->story->mustChoosePreVersion   = 'Select a version to revert to.';
+$lang->story->noEpic                 = "No Epics.";
+$lang->story->noStory                = 'No stories yet. ';
+$lang->story->noRequirement          = 'No requirements yet. ';
+$lang->story->ignoreChangeStage      = 'The status of %s is Draft or Closed. This operation has been filtered.';
+$lang->story->cannotDeleteParent     = "Can not delete parent {$lang->SRCommon}";
+$lang->story->moveChildrenTips       = "Are you sure to modify the product? After modification, all sub-level requirements of the requirement will also be changed accordingly.";
+$lang->story->changeTips             = 'The story associated with the requirements to change, click "Cancel" ignore this change, click "Confirm" to change the story.';
+$lang->story->estimateMustBeNumber   = 'Estimate value must be number.';
+$lang->story->estimateMustBePlus     = 'Estimated value cannot be negative';
+$lang->story->confirmChangeBranch    = $lang->SRCommon . ' %s is linked to the plan of its linked branch. If the branch is edited, ' . $lang->SRCommon . ' will be removed from the plan of its linked branch. Do you want to continue edit ' . $lang->SRCommon . '?';
+$lang->story->confirmChangePlan      = $lang->SRCommon . ' %s is linked to the branch of its plan. If the branch is edited, ' . $lang->SRCommon . ' will be removed from the plan. Do you want to continue edit branch ?';
+$lang->story->errorDuplicateStory    = $lang->SRCommon . '%s not exist';
+$lang->story->confirmRecallChange    = "After undo the change, the story content will revert to the version before the change. Are you sure you want to undo?";
+$lang->story->confirmRecallReview    = "Are you sure you want to withdraw the review?";
+$lang->story->noStoryToTask          = "Only the activated {$lang->SRCommon} can be converted into a task!";
+$lang->story->ignoreClosedStory      = "{$lang->SRCommon} %s status is closed, and the operation has been filtered.";
+$lang->story->changeProductTips      = "Are you sure you want to modify the product? After modification, all sub-level requirements of the requirement will also be changed accordingly.";
+$lang->story->gradeOverflow          = "The system detects that the maximum level of sub-requirements under this requirement is %s. After synchronization modification, it is %s. It exceeds the level range set by the system and cannot be modified.";
+$lang->story->batchGradeOverflow     = "After the parent requirement of %s is modified, the level of its child requirement will exceed the level range set by the system, and this modification has ignored it.";
+$lang->story->batchGradeSameRoot     = 'The requirements %s has a parent-child relationship and the requirement grade will not be modified.';
+$lang->story->batchGradeGtParent     = 'The grade of %s requirements cannot be higher than its parent requirement, and it has been ignored in this modification.';
+$lang->story->batchParentError       = "The parent requirement of %s requirement cannot be itself or its child requirement, which has been ignored in this modification.";
 
 $lang->story->form = new stdclass();
 $lang->story->form->area     = 'Scope';
@@ -356,6 +395,7 @@ $lang->story->action->rejectreviewed        = array('main' => '$date, recorded b
 $lang->story->action->recalled              = array('main' => '$date, recalled by <strong>$actor</strong>.');
 $lang->story->action->closed                = array('main' => '$date, closed by <strong>$actor</strong>. The reason is <strong>$extra</strong> $appendLink.', 'extra' => 'reasonList');
 $lang->story->action->closedbysystem        = array('main' => '$date, The system determines that the parent story is automatically closed because all child stories are closed.');
+$lang->story->action->closedbyparent        = array('main' => '$date, The system determines that the child story is automatically closed because its parent story is closed.');
 $lang->story->action->reviewpassed          = array('main' => '$date, determined by the <strong>System</strong>. The result is <strong>Pass</strong>.');
 $lang->story->action->reviewrejected        = array('main' => '$date, closed by <strong>System</strong>. The reason is <strong>Rejection</strong>.');
 $lang->story->action->reviewclarified       = array('main' => '$date, determined by the <strong>System</strong>. The result is <strong>To Be Clarified</strong>. Please re-initiate the review after edit.');
@@ -379,6 +419,7 @@ $lang->story->action->unlinkrelatedstory    = array('main' => '$date, unlinked b
 $lang->story->action->unlinkchildstory      = array('main' => '$date, unlinked by <strong>$actor</strong> Decomposed Story <strong>$extra</strong>.');
 $lang->story->action->recalledchange        = array('main' => '$date, Undo changes by <strong>\$actor</strong>.');
 $lang->story->action->synctwins             = array('main' => "\$date, the system judges that this story is adjusted synchronously due to the \$operate of twin story <strong>\$extra</strong>.", 'operate' => 'operateList');
+$lang->story->action->syncgrade             = array('main' => "\$date, the system judges that this story's parent grade changed，this story grade synchronously changed to <strong>\$extra</strong>.");
 $lang->story->action->linked2roadmap        = array('main' => '$date, linked by <strong>$actor</strong> to Roadmap <strong>$extra</strong>');
 $lang->story->action->unlinkedfromroadmap   = array('main' => '$date, unlinked by <strong>$actor</strong> from Roadmap <strong>$extra</strong>.');
 $lang->story->action->changedbycharter      = array('main' => '$date, launched by <strong>$actor</strong> for charter <strong>$extra</strong>, Synchronously adjust the story status to launched.');
@@ -402,6 +443,7 @@ $lang->story->report->charts['storiesPerOpenedBy']     = 'Group by CreatedBy';
 $lang->story->report->charts['storiesPerAssignedTo']   = 'Group by AssignedTo';
 $lang->story->report->charts['storiesPerClosedReason'] = 'Group by Closed Reason';
 $lang->story->report->charts['storiesPerChange']       = 'Group by Changed Story';
+$lang->story->report->charts['storiesPerGrade']        = 'Group by Story Grade';
 
 $lang->story->report->options = new stdclass();
 $lang->story->report->options->graph  = new stdclass();
@@ -421,6 +463,7 @@ $lang->story->report->storiesPerAssignedTo   = new stdclass();
 $lang->story->report->storiesPerClosedReason = new stdclass();
 $lang->story->report->storiesPerEstimate     = new stdclass();
 $lang->story->report->storiesPerChange       = new stdclass();
+$lang->story->report->storiesPerGrade        = new stdclass();
 
 $lang->story->report->storiesPerProduct->item      = $lang->productCommon;
 $lang->story->report->storiesPerModule->item       = 'Module';
@@ -434,6 +477,7 @@ $lang->story->report->storiesPerAssignedTo->item   = 'AssignedTo';
 $lang->story->report->storiesPerClosedReason->item = 'Reason';
 $lang->story->report->storiesPerEstimate->item     = 'Estimates';
 $lang->story->report->storiesPerChange->item       = 'Changed Story';
+$lang->story->report->storiesPerGrade->item        = 'Grade';
 
 $lang->story->report->storiesPerProduct->graph      = new stdclass();
 $lang->story->report->storiesPerModule->graph       = new stdclass();
@@ -447,6 +491,7 @@ $lang->story->report->storiesPerAssignedTo->graph   = new stdclass();
 $lang->story->report->storiesPerClosedReason->graph = new stdclass();
 $lang->story->report->storiesPerEstimate->graph     = new stdclass();
 $lang->story->report->storiesPerChange->graph       = new stdclass();
+$lang->story->report->storiesPerGrade->graph        = new stdclass();
 
 $lang->story->report->storiesPerProduct->graph->xAxisName      = $lang->productCommon;
 $lang->story->report->storiesPerModule->graph->xAxisName       = 'Module';
@@ -460,6 +505,7 @@ $lang->story->report->storiesPerAssignedTo->graph->xAxisName   = 'AssignedTo';
 $lang->story->report->storiesPerClosedReason->graph->xAxisName = 'Close Reason';
 $lang->story->report->storiesPerEstimate->graph->xAxisName     = 'Estimates ';
 $lang->story->report->storiesPerChange->graph->xAxisName       = 'Change Times';
+$lang->story->report->storiesPerGrade->graph->xAxisName        = 'Change Times';
 
 $lang->story->placeholder = new stdclass();
 $lang->story->placeholder->estimate = $lang->story->hour;
@@ -499,9 +545,8 @@ $lang->story->recallTip = array();
 $lang->story->recallTip['actived'] = 'The Story has not initiated a review process and no undo action is required.';
 
 $lang->story->subDivideTip = array();
-$lang->story->subDivideTip['subStory']   = 'The Sub-stories cannot be subdivided.';
 $lang->story->subDivideTip['notWait']    = 'The Story has been %s and cannot be subdivided.';
-$lang->story->subDivideTip['notActive']  = "The %s is not active and cannot be subdivided.";
+$lang->story->subDivideTip['notActive']  = "The story is not active and cannot be subdivided.";
 $lang->story->subDivideTip['twinsSplit'] = 'The Twins Story cannot be subdivided.';
 
 $lang->story->featureBar['browse']['all']       = $lang->all;
@@ -520,31 +565,6 @@ $lang->story->operateList['submitreview']   = 'submit review';
 $lang->story->operateList['recalledchange'] = 'recalled change';
 $lang->story->operateList['recalled']       = 'recalled review';
 
-$lang->requirement->common             = $lang->URCommon;
-$lang->requirement->create             = 'Create Requirement';
-$lang->requirement->batchCreate        = "Batch Create";
-$lang->requirement->editAction         = "Edit {$lang->URCommon}";
-$lang->requirement->changeAction       = "Change {$lang->URCommon}";
-$lang->requirement->assignAction       = "Assign {$lang->URCommon}";
-$lang->requirement->reviewAction       = "Review {$lang->URCommon}";
-$lang->requirement->subdivideAction    = "Subdivide {$lang->URCommon}";
-$lang->requirement->closeAction        = "Close {$lang->URCommon}";
-$lang->requirement->activateAction     = "Activate {$lang->URCommon}";
-$lang->requirement->deleteAction       = "Delete {$lang->URCommon}";
-$lang->requirement->exportAction       = "Export {$lang->URCommon}";
-$lang->requirement->reportAction       = "Report";
-$lang->requirement->recall             = $lang->story->recallAction;
-$lang->requirement->batchReview        = 'Batch Review';
-$lang->requirement->batchEdit          = "Batch Edit";
-$lang->requirement->batchClose         = 'Batch Close';
-$lang->requirement->view               = 'Requirement Detail';
-$lang->requirement->linkRequirementsAB = "Link {$lang->URCommon}";
-$lang->requirement->batchChangeBranch  = "Batch Change Branches";
-$lang->requirement->batchAssignTo      = "Batch Assign";
-$lang->requirement->batchChangeModule  = "Batch Change Modules";
-$lang->requirement->submitReview       = $lang->story->submitReview;
-$lang->requirement->linkStory          = 'Link Story';
-
 $lang->story->addBranch      = 'Add %s';
 $lang->story->deleteBranch   = 'Delete %s';
 $lang->story->notice->branch = 'Each branch will establish a requirement. The requirements are twins. The twins requirements are synchronized except for the product, branch, module, plan, and stage fields. You can manually remove the twins relationship later';
@@ -552,3 +572,12 @@ $lang->story->notice->branch = 'Each branch will establish a requirement. The re
 $lang->story->relievedTwinsRelation     = 'Relieved twins relationship';
 $lang->story->relievedTwinsRelationTips = 'After the twins relationship is terminated, it cannot be restored and the shutdown of the requirement is no longer synchronized.';
 $lang->story->changeRelievedTwinsTips   = 'After the twins relationship is terminated, the twin stories are no longer synchronized.';
+
+$lang->story->trackOrderByList['id']       = 'Order by ID';
+$lang->story->trackOrderByList['pri']      = 'Order by priority';
+$lang->story->trackOrderByList['status']   = 'Order by status';
+$lang->story->trackOrderByList['stage']    = 'Order by stage';
+$lang->story->trackOrderByList['category'] = 'Order by category';
+
+$lang->story->trackSortList['asc']  = ' Ascending';
+$lang->story->trackSortList['desc'] = ' Descending';
diff --git a/module/story/lang/fr.php b/module/story/lang/fr.php
index 9482fb8221..000d914de1 100644
--- a/module/story/lang/fr.php
+++ b/module/story/lang/fr.php
@@ -40,7 +40,7 @@ $lang->story->unlink             = 'Unlink';
 $lang->story->track              = 'Track';
 $lang->story->trackAB            = 'Track';
 $lang->story->processStoryChange = 'Confirm Story Change';
-$lang->story->splitRequirent     = 'Décompose';
+$lang->story->split              = 'Décompose';
 $lang->story->close              = 'Fermer';
 $lang->story->batchClose         = 'Fermer par Lot';
 $lang->story->activate           = 'Activer';
@@ -56,8 +56,8 @@ $lang->story->caseCount          = 'CasTests';
 $lang->story->taskCountAB        = 'T';
 $lang->story->bugCountAB         = 'B';
 $lang->story->caseCountAB        = 'C';
-$lang->story->linkStory          = "Lier {$lang->SRCommon}";
-$lang->story->unlinkStory        = "Dissocier {$lang->SRCommon}";
+$lang->story->linkStory          = "Lier Story";
+$lang->story->unlinkStory        = "Do you confirm unlink this story?";
 $lang->story->linkStoriesAB      = "Lier {$lang->SRCommon}";
 $lang->story->linkRequirementsAB = "Lier {$lang->URCommon}";
 $lang->story->export             = "Exporter Données";
@@ -70,6 +70,9 @@ $lang->story->batchChangeBranch  = "Changer Branches par lot";
 $lang->story->batchChangeStage   = "Changer Phases par lot";
 $lang->story->batchAssignTo      = "Affecter par lot";
 $lang->story->batchChangeModule  = "Changer Modules par lot";
+$lang->story->batchChangeParent  = "Batch Change Parent";
+$lang->story->batchChangeGrade   = "Batch Change Grade";
+$lang->story->changeParent       = "Change Parent";
 $lang->story->viewAll            = "Voir Tout";
 $lang->story->toTask             = 'Convert to Task';
 $lang->story->batchToTask        = 'Batch Convert to Task';
@@ -84,11 +87,13 @@ $lang->story->relieved           = 'Relieved';
 $lang->story->relievedTwins      = 'Relieved Twins';
 $lang->story->loadAllStories     = 'All';
 $lang->story->hasDividedTask     = 'has divided task';
+$lang->story->viewAllGrades      = 'View All Grades';
 $lang->story->codeBranch         = 'Code branch';
 $lang->story->unlinkBranch       = 'Unlink code branch';
 $lang->story->branchName         = 'Branch Name';
 $lang->story->branchFrom         = 'Create from';
 $lang->story->codeRepo           = 'Code Library';
+$lang->story->viewByType         = "View By %s";
 
 $lang->story->editAction      = "Edit {$lang->SRCommon}";
 $lang->story->changeAction    = "Changer Story";
@@ -101,7 +106,6 @@ $lang->story->deleteAction    = "Supprimer Story";
 $lang->story->exportAction    = "Exporter Story";
 $lang->story->reportAction    = "Rapport de Story";
 
-$lang->story->skipStory        = "{$lang->SRCommon} %s is parent stories, and this operation has been filtered.";
 $lang->story->closedStory      = "{$lang->SRCommon} %s is closed, and this operation has been filtered.";
 $lang->story->batchToTaskTips  = "Only active {$lang->SRCommon} can be converted into tasks.";
 $lang->story->successToTask    = "Converted to task.";
@@ -120,8 +124,13 @@ $lang->story->batchEditTip        = "{$lang->SRCommon} %sis twin stories, and th
 
 $lang->story->id               = 'ID';
 $lang->story->parent           = 'Parent';
+$lang->story->isParent         = 'Is Parent';
+$lang->story->grade            = 'Grade';
+$lang->story->gradeName        = 'Grade Name';
+$lang->story->path             = 'Path';
 $lang->story->product          = $lang->productCommon;
 $lang->story->project          = $lang->projectCommon;
+$lang->story->execution        = "Execution";
 $lang->story->branch           = "Branche/Plateforme";
 $lang->story->module           = 'Module';
 $lang->story->moduleAB         = 'Module';
@@ -130,6 +139,7 @@ $lang->story->source           = 'De';
 $lang->story->sourceNote       = 'Note';
 $lang->story->fromBug          = 'Depuis Bug';
 $lang->story->title            = 'Titre';
+$lang->story->name             = "Name";
 $lang->story->type             = "Story/Requirement";
 $lang->story->category         = 'Category';
 $lang->story->color            = 'Couleur';
@@ -176,6 +186,7 @@ $lang->story->plan             = 'Intégrée Plans';
 $lang->story->planAB           = 'Plan';
 $lang->story->comment          = 'Commentaire';
 $lang->story->children         = "Enfant {$lang->SRCommon}";
+$lang->story->childItem        = "Child Item";
 $lang->story->childrenAB       = "C";
 $lang->story->linkStories      = 'Stories Liées';
 $lang->story->linkRequirements = "{$lang->URCommon} Lié es";
@@ -212,6 +223,13 @@ $lang->story->estimateUnit     = "(Unit: {$lang->story->hour})";
 $lang->story->ditto       = 'Idem';
 $lang->story->dittoNotice = "This story is not linked to the same {$lang->productCommon} as the last one is!";
 
+$lang->story->viewTypeList['tiled'] = 'Tiled';
+$lang->story->viewTypeList['tree']  = 'Tree';
+
+if($config->enableER) $lang->story->typeList['epic']        = $lang->ERCommon;
+if($config->URAndSR)  $lang->story->typeList['requirement'] = $lang->URCommon;
+$lang->story->typeList['story'] = $lang->SRCommon;
+
 $lang->story->needNotReviewList[0] = 'Need Review';
 $lang->story->needNotReviewList[1] = 'Need Not Review';
 
@@ -232,14 +250,21 @@ if($config->systemMode == 'PLM')
 }
 
 $lang->story->stageList['']           = '';
+$lang->story->stageList['defining']   = 'Defining';
 $lang->story->stageList['wait']       = 'En Attente';
+$lang->story->stageList['planning']   = 'Planning';
 $lang->story->stageList['planned']    = 'Plannifée';
 $lang->story->stageList['projected']  = 'Projetée';
+$lang->story->stageList['designing']  = 'Designing';
+$lang->story->stageList['designed']   = 'Designed';
 $lang->story->stageList['developing'] = 'En Dév.';
 $lang->story->stageList['developed']  = 'Développée';
 $lang->story->stageList['testing']    = 'En Test';
 $lang->story->stageList['tested']     = 'Testée';
 $lang->story->stageList['verified']   = 'Acceptée';
+$lang->story->stageList['rejected']   = 'Verify Rejected';
+$lang->story->stageList['delivering'] = 'Delivering';
+$lang->story->stageList['pending']    = 'Release Pending';
 $lang->story->stageList['released']   = 'Versionnée';
 $lang->story->stageList['closed']     = 'Fermée';
 
@@ -318,31 +343,45 @@ $lang->story->affectedBugs         = 'Bugs';
 $lang->story->affectedCases        = 'CasTests';
 $lang->story->affectedTwins        = 'des jumeaux';
 
-$lang->story->specTemplate         = "En tant que < type utilisateur >, je veux < différents objectifs > pour < différentes raisons >.";
-$lang->story->needNotReview        = 'Aucune Validation Requise';
-$lang->story->successSaved         = "Story est sauvegardée !";
-$lang->story->confirmDelete        = "Voulez-vous vraiment supprimer cette story ?";
-$lang->story->confirmRecall        = "Do you want to recall this story?";
-$lang->story->errorEmptyChildStory = '『Decomposed Stories』ne peuvent être vides.';
-$lang->story->errorNotSubdivide    = "Si le statut n'est pas actif, ou l'étape n'est pas en attente, ou si c'est une sous-story, elle ne peut pas être subdivisée.";
-$lang->story->errorEmptyReviewedBy = "『{$lang->story->reviewers}』canot be blank.";
-$lang->story->mustChooseResult     = 'Sélect Résultat';
-$lang->story->mustChoosePreVersion = 'Sélect une version pour revenir en arrière.';
-$lang->story->noStory              = "Aucune story pour l'instant. ";
-$lang->story->noRequirement        = 'No Requirements';
-$lang->story->ignoreChangeStage    = 'The status of %s is Draft or Closed. This operation has been filtered.';
-$lang->story->cannotDeleteParent   = "Impossible de supprimer {$lang->SRCommon} parent";
-$lang->story->moveChildrenTips     = "Its Child {$lang->SRCommon} will be moved to the selected {$lang->productCommon} when editing the linked {$lang->productCommon} of Parent {$lang->SRCommon}.";
-$lang->story->changeTips           = 'The story associated with the requirements to change, click "Cancel" ignore this change, click "Confirm" to change the story.';
-$lang->story->estimateMustBeNumber = 'Estimate value must be number.';
-$lang->story->estimateMustBePlus   = 'Estimated value cannot be negative';
-$lang->story->confirmChangeBranch  = $lang->SRCommon . ' %s is linked to the plan of its linked branch. If the branch is edited, ' . $lang->SRCommon . ' will be removed from the plan of its linked branch. Do you want to continue edit ' . $lang->SRCommon . '?';
-$lang->story->confirmChangePlan    = $lang->SRCommon . ' %s is linked to the branch of its plan. If the branch is edited, ' . $lang->SRCommon . ' will be removed from the plan. Do you want to continue edit branch ?';
-$lang->story->errorDuplicateStory  = $lang->SRCommon . '%s not exist';
-$lang->story->confirmRecallChange  = "After undo the change, the story content will revert to the version before the change. Are you sure you want to undo?";
-$lang->story->confirmRecallReview  = "Are you sure you want to withdraw the review?";
-$lang->story->noStoryToTask        = "Only the activated {$lang->SRCommon} can be converted into a task!";
-$lang->story->ignoreClosedStory    = "{$lang->SRCommon} %s status is closed, and the operation has been filtered.";
+$lang->story->specTemplate           = "En tant que < type utilisateur >, je veux < différents objectifs > pour < différentes raisons >.";
+$lang->story->needNotReview          = 'Aucune Validation Requise';
+$lang->story->childStoryTitle        = 'Contains %s sub-requirements, of which %s have been finished';
+$lang->story->childTaskTitle         = 'Contains %s tasks, of which %s have been finished';
+$lang->story->successSaved           = "Story est sauvegardée !";
+$lang->story->confirmDelete          = "Voulez-vous vraiment supprimer cette story ?";
+$lang->story->confirmRecall          = "Do you want to recall this story?";
+$lang->story->errorEmptyChildStory   = '『Decomposed Stories』ne peuvent être vides.';
+$lang->story->errorNotSubdivide      = "Si le statut n'est pas actif, ou l'étape n'est pas en attente, ou si c'est une sous-story, elle ne peut pas être subdivisée.";
+$lang->story->errorMaxGradeSubdivide = "The current story's grade exceeds the system setting, so it cannot be subdivided same type story.";
+$lang->story->errorStepwiseSubdivide = "This requirement type does not allow cross-system splitting. This setting can be changed in the admin.";
+$lang->story->errorCannotSplit       = "This requirement has been split into sub-requirements of this type and cannot be split into requirements of other types.";
+$lang->story->errorParentSplitTask   = "Parent requirements cannot be transferred to tasks, this operation has been filtered.";
+$lang->story->errorERURSplitTask     = "Parent requirements,{$lang->ERCommon} and {$lang->URCommon}cannot be transferred to tasks, this operation has been filtered.";
+$lang->story->errorEmptyReviewedBy   = "『{$lang->story->reviewers}』canot be blank.";
+$lang->story->mustChooseResult       = 'Sélect Résultat';
+$lang->story->mustChoosePreVersion   = 'Sélect une version pour revenir en arrière.';
+$lang->story->noEpic                 = "No Epics.";
+$lang->story->noStory                = "Aucune story pour l'instant. ";
+$lang->story->noRequirement          = 'No Requirements';
+$lang->story->ignoreChangeStage      = 'The status of %s is Draft or Closed. This operation has been filtered.';
+$lang->story->cannotDeleteParent     = "Impossible de supprimer {$lang->SRCommon} parent";
+$lang->story->moveChildrenTips       = "Are you sure to modify the product? After modification, all sub-level requirements of the requirement will also be changed accordingly.";
+$lang->story->changeTips             = 'The story associated with the requirements to change, click "Cancel" ignore this change, click "Confirm" to change the story.';
+$lang->story->estimateMustBeNumber   = 'Estimate value must be number.';
+$lang->story->estimateMustBePlus     = 'Estimated value cannot be negative';
+$lang->story->confirmChangeBranch    = $lang->SRCommon . ' %s is linked to the plan of its linked branch. If the branch is edited, ' . $lang->SRCommon . ' will be removed from the plan of its linked branch. Do you want to continue edit ' . $lang->SRCommon . '?';
+$lang->story->confirmChangePlan      = $lang->SRCommon . ' %s is linked to the branch of its plan. If the branch is edited, ' . $lang->SRCommon . ' will be removed from the plan. Do you want to continue edit branch ?';
+$lang->story->errorDuplicateStory    = $lang->SRCommon . '%s not exist';
+$lang->story->confirmRecallChange    = "After undo the change, the story content will revert to the version before the change. Are you sure you want to undo?";
+$lang->story->confirmRecallReview    = "Are you sure you want to withdraw the review?";
+$lang->story->noStoryToTask          = "Only the activated {$lang->SRCommon} can be converted into a task!";
+$lang->story->ignoreClosedStory      = "{$lang->SRCommon} %s status is closed, and the operation has been filtered.";
+$lang->story->changeProductTips      = "Are you sure you want to modify the product? After modification, all sub-level requirements of the requirement will also be changed accordingly.";
+$lang->story->gradeOverflow          = "The system detects that the maximum level of sub-requirements under this requirement is %s. After synchronization modification, it is %s. It exceeds the level range set by the system and cannot be modified.";
+$lang->story->batchGradeOverflow     = "After the parent requirement of %s is modified, the level of its child requirement will exceed the level range set by the system, and this modification has ignored it.";
+$lang->story->batchGradeSameRoot     = 'The requirements %s has a parent-child relationship and the requirement grade will not be modified.';
+$lang->story->batchGradeGtParent     = 'The grade of %s requirements cannot be higher than its parent requirement, and it has been ignored in this modification.';
+$lang->story->batchParentError       = "The parent requirement of %s requirement cannot be itself or its child requirement, which has been ignored in this modification.";
 
 $lang->story->form = new stdclass();
 $lang->story->form->area     = 'Périmètre';
@@ -356,6 +395,7 @@ $lang->story->action->rejectreviewed        = array('main' => '$date, validée p
 $lang->story->action->recalled              = array('main' => '$date, recalled by <strong>$actor</strong>.');
 $lang->story->action->closed                = array('main' => '$date, Fermée par <strong>$actor</strong>. La raison est <strong>$extra</strong> $appendLink.', 'extra' => 'reasonList');
 $lang->story->action->closedbysystem        = array('main' => '$date, The system determines that the parent story is automatically closed because all child stories are closed.');
+$lang->story->action->closedbyparent        = array('main' => '$date, The system determines that the child story is automatically closed because its parent story is closed.');
 $lang->story->action->reviewpassed          = array('main' => '$date, determined by the <strong>System</strong>. The result is <strong>Pass</strong>.');
 $lang->story->action->reviewrejected        = array('main' => '$date, closed by <strong>System</strong>. The reason is <strong>Rejection</strong>.');
 $lang->story->action->reviewclarified       = array('main' => '$date, determined by the <strong>System</strong>. The result is <strong>To Be Clarified</strong>. Please re-initiate the review after edit.');
@@ -379,29 +419,31 @@ $lang->story->action->unlinkrelatedstory    = array('main' => '$date, dissociée
 $lang->story->action->unlinkchildstory      = array('main' => '$date, dissociée par <strong>$actor</strong> de la sous-Story <strong>$extra</strong>.');
 $lang->story->action->recalledchange        = array('main' => '$date, Undo changes by <strong>\$actor</strong>.');
 $lang->story->action->synctwins             = array('main' => "\$date, the system judges that this story is adjusted synchronously due to the \$operate of twin story <strong>\$extra</strong>.", 'operate' => 'operateList');
+$lang->story->action->syncgrade             = array('main' => "\$date, the system judges that this story's parent grade changed，this story grade synchronously changed to <strong>\$extra</strong>.");
 $lang->story->action->linked2roadmap        = array('main' => '$date, linked by <strong>$actor</strong> to Roadmap <strong>$extra</strong>');
 $lang->story->action->unlinkedfromroadmap   = array('main' => '$date, unlinked by <strong>$actor</strong> from Roadmap <strong>$extra</strong>.');
 $lang->story->action->changedbycharter      = array('main' => '$date, launched by <strong>$actor</strong> for charter <strong>$extra</strong>, Synchronously adjust the story status to launched.');
 
 /* Statistical statement. */
 $lang->story->report = new stdclass();
-$lang->story->report->common = 'Rapport';
-$lang->story->report->select = 'Choix Type de Rapport';
-$lang->story->report->create = 'Créer Rapport';
-$lang->story->report->value  = 'Rapports';
+$lang->story->report->common = 'Report';
+$lang->story->report->select = 'Select Report Type';
+$lang->story->report->create = 'Create Report';
+$lang->story->report->value  = 'Reports';
 
-$lang->story->report->charts['storiesPerProduct']      = 'Regroupé par ' . $lang->productCommon . ' Story';
-$lang->story->report->charts['storiesPerModule']       = 'Regroupé par Module Story';
-$lang->story->report->charts['storiesPerSource']       = 'Regroupé par Source';
-$lang->story->report->charts['storiesPerPlan']         = 'Regroupé par Plan';
-$lang->story->report->charts['storiesPerStatus']       = 'Regroupé par Statut';
-$lang->story->report->charts['storiesPerStage']        = 'Regroupé par Phase';
-$lang->story->report->charts['storiesPerPri']          = 'Regroupé par Priorité';
-$lang->story->report->charts['storiesPerEstimate']     = 'Regroupé par Estimés';
-$lang->story->report->charts['storiesPerOpenedBy']     = 'Regroupé par Créateur';
-$lang->story->report->charts['storiesPerAssignedTo']   = 'Regroupé par Détenteur';
-$lang->story->report->charts['storiesPerClosedReason'] = 'Par Raison de Fermeture';
-$lang->story->report->charts['storiesPerChange']       = 'Regroupé par Modif de Story';
+$lang->story->report->charts['storiesPerProduct']      = 'Group by ' . $lang->productCommon . ' Story';
+$lang->story->report->charts['storiesPerModule']       = 'Group by Module Story';
+$lang->story->report->charts['storiesPerSource']       = 'Group by Story Source';
+$lang->story->report->charts['storiesPerPlan']         = 'Group by Plan';
+$lang->story->report->charts['storiesPerStatus']       = 'Group by Status';
+$lang->story->report->charts['storiesPerStage']        = 'Group by Phase';
+$lang->story->report->charts['storiesPerPri']          = 'Group by Priority';
+$lang->story->report->charts['storiesPerEstimate']     = 'Group by Estimates';
+$lang->story->report->charts['storiesPerOpenedBy']     = 'Group by CreatedBy';
+$lang->story->report->charts['storiesPerAssignedTo']   = 'Group by AssignedTo';
+$lang->story->report->charts['storiesPerClosedReason'] = 'Group by Closed Reason';
+$lang->story->report->charts['storiesPerChange']       = 'Group by Changed Story';
+$lang->story->report->charts['storiesPerGrade']        = 'Group by Story Grade';
 
 $lang->story->report->options = new stdclass();
 $lang->story->report->options->graph  = new stdclass();
@@ -421,19 +463,21 @@ $lang->story->report->storiesPerAssignedTo   = new stdclass();
 $lang->story->report->storiesPerClosedReason = new stdclass();
 $lang->story->report->storiesPerEstimate     = new stdclass();
 $lang->story->report->storiesPerChange       = new stdclass();
+$lang->story->report->storiesPerGrade        = new stdclass();
 
 $lang->story->report->storiesPerProduct->item      = $lang->productCommon;
 $lang->story->report->storiesPerModule->item       = 'Module';
 $lang->story->report->storiesPerSource->item       = 'Source';
 $lang->story->report->storiesPerPlan->item         = 'Plan';
-$lang->story->report->storiesPerStatus->item       = 'Statut';
+$lang->story->report->storiesPerStatus->item       = 'Status';
 $lang->story->report->storiesPerStage->item        = 'Phase';
-$lang->story->report->storiesPerPri->item          = 'Priorité';
-$lang->story->report->storiesPerOpenedBy->item     = 'Créateur';
-$lang->story->report->storiesPerAssignedTo->item   = 'Détenteur';
-$lang->story->report->storiesPerClosedReason->item = 'Raison';
-$lang->story->report->storiesPerEstimate->item     = 'Estimation';
-$lang->story->report->storiesPerChange->item       = 'Chang. Story';
+$lang->story->report->storiesPerPri->item          = 'Priority';
+$lang->story->report->storiesPerOpenedBy->item     = 'OpenedBy';
+$lang->story->report->storiesPerAssignedTo->item   = 'AssignedTo';
+$lang->story->report->storiesPerClosedReason->item = 'Reason';
+$lang->story->report->storiesPerEstimate->item     = 'Estimates';
+$lang->story->report->storiesPerChange->item       = 'Changed Story';
+$lang->story->report->storiesPerGrade->item        = 'Grade';
 
 $lang->story->report->storiesPerProduct->graph      = new stdclass();
 $lang->story->report->storiesPerModule->graph       = new stdclass();
@@ -447,19 +491,21 @@ $lang->story->report->storiesPerAssignedTo->graph   = new stdclass();
 $lang->story->report->storiesPerClosedReason->graph = new stdclass();
 $lang->story->report->storiesPerEstimate->graph     = new stdclass();
 $lang->story->report->storiesPerChange->graph       = new stdclass();
+$lang->story->report->storiesPerGrade->graph        = new stdclass();
 
 $lang->story->report->storiesPerProduct->graph->xAxisName      = $lang->productCommon;
 $lang->story->report->storiesPerModule->graph->xAxisName       = 'Module';
 $lang->story->report->storiesPerSource->graph->xAxisName       = 'Source';
 $lang->story->report->storiesPerPlan->graph->xAxisName         = 'Plan';
-$lang->story->report->storiesPerStatus->graph->xAxisName       = 'Statut';
+$lang->story->report->storiesPerStatus->graph->xAxisName       = 'Status';
 $lang->story->report->storiesPerStage->graph->xAxisName        = 'Phase';
-$lang->story->report->storiesPerPri->graph->xAxisName          = 'Priorité';
-$lang->story->report->storiesPerOpenedBy->graph->xAxisName     = 'Créateur';
-$lang->story->report->storiesPerAssignedTo->graph->xAxisName   = 'Détenteur';
-$lang->story->report->storiesPerClosedReason->graph->xAxisName = 'Raison Fermeture';
-$lang->story->report->storiesPerEstimate->graph->xAxisName     = 'Estimattion ';
+$lang->story->report->storiesPerPri->graph->xAxisName          = 'Priority';
+$lang->story->report->storiesPerOpenedBy->graph->xAxisName     = 'CreatedBy';
+$lang->story->report->storiesPerAssignedTo->graph->xAxisName   = 'AssignedTo';
+$lang->story->report->storiesPerClosedReason->graph->xAxisName = 'Close Reason';
+$lang->story->report->storiesPerEstimate->graph->xAxisName     = 'Estimates ';
 $lang->story->report->storiesPerChange->graph->xAxisName       = 'Change Times';
+$lang->story->report->storiesPerGrade->graph->xAxisName        = 'Change Times';
 
 $lang->story->placeholder = new stdclass();
 $lang->story->placeholder->estimate = $lang->story->hour;
@@ -499,9 +545,8 @@ $lang->story->recallTip = array();
 $lang->story->recallTip['actived'] = "Aucun processus de révision n'a été lancé pour cette Story, et il n'est pas nécessaire de révoquer l'opération.";
 
 $lang->story->subDivideTip = array();
-$lang->story->subDivideTip['subStory']   = 'Les sous-stories ne peuvent pas être décomposées.';
 $lang->story->subDivideTip['notWait']    = "L'exigence %s ne peut pas être subdivisée.";
-$lang->story->subDivideTip['notActive']  = "The %s is not active and cannot be subdivided.";
+$lang->story->subDivideTip['notActive']  = "The story is not active and cannot be subdivided.";
 $lang->story->subDivideTip['twinsSplit'] = 'The Twins Story cannot be subdivided.';
 
 $lang->story->featureBar['browse']['all']       = $lang->all;
@@ -520,31 +565,6 @@ $lang->story->operateList['submitreview']   = 'submit review';
 $lang->story->operateList['recalledchange'] = 'recalled change';
 $lang->story->operateList['recalled']       = 'recalled review';
 
-$lang->requirement->common             = $lang->URCommon;
-$lang->requirement->create             = 'Create Requirement';
-$lang->requirement->batchCreate        = "Batch Create";
-$lang->requirement->editAction         = "Edit {$lang->URCommon}";
-$lang->requirement->changeAction       = "Change {$lang->URCommon}";
-$lang->requirement->assignAction       = "Assign {$lang->URCommon}";
-$lang->requirement->reviewAction       = "Review {$lang->URCommon}";
-$lang->requirement->subdivideAction    = "Subdivide {$lang->URCommon}";
-$lang->requirement->closeAction        = "Close {$lang->URCommon}";
-$lang->requirement->activateAction     = "Activate {$lang->URCommon}";
-$lang->requirement->deleteAction       = "Delete {$lang->URCommon}";
-$lang->requirement->exportAction       = "Export {$lang->URCommon}";
-$lang->requirement->reportAction       = "Report";
-$lang->requirement->recall             = $lang->story->recallAction;
-$lang->requirement->batchReview        = 'Batch Review';
-$lang->requirement->batchEdit          = "Batch Edit";
-$lang->requirement->batchClose         = 'Batch Close';
-$lang->requirement->view               = 'Requirement Detail';
-$lang->requirement->linkRequirementsAB = "Link {$lang->URCommon}";
-$lang->requirement->batchChangeBranch  = "Batch Change Branches";
-$lang->requirement->batchAssignTo      = "Batch Assign";
-$lang->requirement->batchChangeModule  = "Batch Change Modules";
-$lang->requirement->submitReview       = $lang->story->submitReview;
-$lang->requirement->linkStory          = 'Lier Story';
-
 $lang->story->addBranch      = 'Add %s';
 $lang->story->deleteBranch   = 'Delete %s';
 $lang->story->notice->branch = 'Each branch will establish a requirement. The requirements are twins. The twins requirements are synchronized except for the product, branch, module, plan, and stage fields. You can manually remove the twins relationship later';
@@ -552,3 +572,12 @@ $lang->story->notice->branch = 'Each branch will establish a requirement. The re
 $lang->story->relievedTwinsRelation     = 'Relieved twins relationship';
 $lang->story->relievedTwinsRelationTips = 'After the twins relationship is terminated, it cannot be restored and the shutdown of the requirement is no longer synchronized.';
 $lang->story->changeRelievedTwinsTips   = 'After the twins relationship is terminated, the twin stories are no longer synchronized.';
+
+$lang->story->trackOrderByList['id']       = 'Order by ID';
+$lang->story->trackOrderByList['pri']      = 'Order by priority';
+$lang->story->trackOrderByList['status']   = 'Order by status';
+$lang->story->trackOrderByList['stage']    = 'Order by stage';
+$lang->story->trackOrderByList['category'] = 'Order by category';
+
+$lang->story->trackSortList['asc']  = ' Ascending';
+$lang->story->trackSortList['desc'] = ' Descending';
diff --git a/module/story/lang/zh-cn.php b/module/story/lang/zh-cn.php
index 2c88efac62..745c1b5cdb 100644
--- a/module/story/lang/zh-cn.php
+++ b/module/story/lang/zh-cn.php
@@ -33,14 +33,14 @@ $lang->story->batchReview        = '批量评审';
 $lang->story->edit               = "编辑";
 $lang->story->editDraft          = "编辑草稿";
 $lang->story->batchEdit          = "批量编辑";
-$lang->story->subdivide          = '细分';
-$lang->story->subdivideSR        = $lang->SRCommon . '细分';
+$lang->story->subdivide          = '拆分';
+$lang->story->subdivideSR        = $lang->SRCommon . '拆分';
 $lang->story->link               = '关联';
 $lang->story->unlink             = '移除';
 $lang->story->track              = '跟踪矩阵';
 $lang->story->trackAB            = '矩阵';
-$lang->story->processStoryChange = '确认需求变动';
-$lang->story->splitRequirent     = '拆分';
+$lang->story->processStoryChange = '确认父需求变更';
+$lang->story->split              = '拆分';
 $lang->story->close              = '关闭';
 $lang->story->batchClose         = '批量关闭';
 $lang->story->activate           = '激活';
@@ -56,8 +56,8 @@ $lang->story->caseCount          = '用例数';
 $lang->story->taskCountAB        = 'T';
 $lang->story->bugCountAB         = 'B';
 $lang->story->caseCountAB        = 'C';
-$lang->story->linkStory          = "关联{$lang->SRCommon}";
-$lang->story->unlinkStory        = "移除相关{$lang->SRCommon}";
+$lang->story->linkStory          = "关联需求";
+$lang->story->unlinkStory        = "您确认移除相关需求吗？";
 $lang->story->linkStoriesAB      = "关联相关{$lang->SRCommon}";
 $lang->story->linkRequirementsAB = "关联相关{$lang->URCommon}";
 $lang->story->export             = "导出数据";
@@ -70,6 +70,9 @@ $lang->story->batchChangeBranch  = "批量修改分支";
 $lang->story->batchChangeStage   = "批量修改阶段";
 $lang->story->batchAssignTo      = "批量指派";
 $lang->story->batchChangeModule  = "批量修改模块";
+$lang->story->batchChangeParent  = "批量修改父需求";
+$lang->story->batchChangeGrade   = "批量修改层级";
+$lang->story->changeParent       = "修改父需求";
 $lang->story->viewAll            = '查看全部';
 $lang->story->toTask             = '转任务';
 $lang->story->batchToTask        = '批量转任务';
@@ -84,25 +87,26 @@ $lang->story->relieved           = '解除';
 $lang->story->relievedTwins      = '解除孪生需求';
 $lang->story->loadAllStories     = '所有';
 $lang->story->hasDividedTask     = '已经分解任务';
+$lang->story->viewAllGrades      = '查看所有层级';
 $lang->story->codeBranch         = '代码分支';
 $lang->story->unlinkBranch       = '解除关联代码分支';
 $lang->story->branchName         = '分支名称';
 $lang->story->branchFrom         = '创建自';
 $lang->story->codeRepo           = '仓库名称';
+$lang->story->viewByType         = "按照%s查看";
 
 $lang->story->editAction      = "编辑{$lang->SRCommon}";
 $lang->story->changeAction    = "变更{$lang->SRCommon}";
 $lang->story->assignAction    = "指派{$lang->SRCommon}";
 $lang->story->reviewAction    = "评审{$lang->SRCommon}";
-$lang->story->subdivideAction = "细分{$lang->SRCommon}";
+$lang->story->subdivideAction = "拆分{$lang->SRCommon}";
 $lang->story->closeAction     = "关闭{$lang->SRCommon}";
 $lang->story->activateAction  = "激活{$lang->SRCommon}";
 $lang->story->deleteAction    = "删除{$lang->SRCommon}";
 $lang->story->exportAction    = "导出{$lang->SRCommon}";
 $lang->story->reportAction    = "统计报表";
 
-$lang->story->skipStory        = "{$lang->SRCommon} %s 为父需求，本次操作已被过滤。";
-$lang->story->closedStory      = "{$lang->SRCommon} %s 已关闭，本次操作已被过滤。";
+$lang->story->closedStory      = '需求：%s 已关闭，将不会被关闭。';
 $lang->story->batchToTaskTips  = "只有激活状态的{$lang->SRCommon}才能转为任务。";
 $lang->story->successToTask    = '批量转任务成功';
 $lang->story->storyRound       = '第 %s 轮估算';
@@ -120,8 +124,13 @@ $lang->story->batchEditTip        = "{$lang->SRCommon} %s为孪生需求，本
 
 $lang->story->id               = '编号';
 $lang->story->parent           = '父需求';
+$lang->story->isParent         = '是父需求';
+$lang->story->grade            = '需求层级';
+$lang->story->gradeName        = '层级名称';
+$lang->story->path             = '路径';
 $lang->story->product          = "所属{$lang->productCommon}";
 $lang->story->project          = "所属{$lang->projectCommon}";
+$lang->story->execution        = "所属执行";
 $lang->story->branch           = "平台/分支";
 $lang->story->module           = '所属模块';
 $lang->story->moduleAB         = '模块';
@@ -130,6 +139,7 @@ $lang->story->source           = "来源";
 $lang->story->sourceNote       = '来源备注';
 $lang->story->fromBug          = '来源Bug';
 $lang->story->title            = "{$lang->SRCommon}名称";
+$lang->story->name             = "需求名称";
 $lang->story->type             = "需求类型";
 $lang->story->category         = "类别";
 $lang->story->color            = '标题颜色';
@@ -176,11 +186,12 @@ $lang->story->plan             = "所属计划";
 $lang->story->planAB           = '计划';
 $lang->story->comment          = '备注';
 $lang->story->children         = "子需求";
+$lang->story->childItem        = "子项";
 $lang->story->childrenAB       = "子";
-$lang->story->linkStories      = "相关{$lang->SRCommon}";
+$lang->story->linkStories      = "相关需求";
 $lang->story->linkRequirements = "相关{$lang->URCommon}";
-$lang->story->childStories     = "细分{$lang->SRCommon}";
-$lang->story->duplicateStory   = "重复{$lang->SRCommon}";
+$lang->story->childStories     = "拆分{$lang->SRCommon}";
+$lang->story->duplicateStory   = "重复需求";
 $lang->story->reviewResult     = '评审意见';
 $lang->story->reviewResultAB   = '评审结果';
 $lang->story->preVersion       = '之前版本';
@@ -188,7 +199,7 @@ $lang->story->keywords         = '关键词';
 $lang->story->newStory         = "继续添加{$lang->SRCommon}";
 $lang->story->colorTag         = '颜色标签';
 $lang->story->files            = '附件';
-$lang->story->copy             = "复制{$lang->SRCommon}";
+$lang->story->copy             = "复制需求";
 $lang->story->total            = "总{$lang->SRCommon}";
 $lang->story->draft            = '草稿';
 $lang->story->unclosed         = '未关闭';
@@ -212,6 +223,13 @@ $lang->story->estimateUnit     = "（单位：{$lang->story->hour}）";
 $lang->story->ditto       = '同上';
 $lang->story->dittoNotice = "该{$lang->SRCommon}与上一{$lang->SRCommon}不属于同一{$lang->productCommon}！";
 
+$lang->story->viewTypeList['tiled'] = '平铺';
+$lang->story->viewTypeList['tree']  = '树状';
+
+if($config->enableER) $lang->story->typeList['epic']        = $lang->ERCommon;
+if($config->URAndSR)  $lang->story->typeList['requirement'] = $lang->URCommon;
+$lang->story->typeList['story'] = $lang->SRCommon;
+
 $lang->story->needNotReviewList[0] = '需要评审';
 $lang->story->needNotReviewList[1] = '不需要评审';
 
@@ -232,20 +250,27 @@ if($config->systemMode == 'PLM')
 }
 
 $lang->story->stageList['']           = '';
+$lang->story->stageList['defining']   = '定义中';
 $lang->story->stageList['wait']       = '未开始';
+$lang->story->stageList['planning']   = '规划中';
 $lang->story->stageList['planned']    = "已计划";
 $lang->story->stageList['projected']  = '已立项';
+$lang->story->stageList['designing']  = '设计中';
+$lang->story->stageList['designed']   = '设计完毕';
 $lang->story->stageList['developing'] = '研发中';
 $lang->story->stageList['developed']  = '研发完毕';
 $lang->story->stageList['testing']    = '测试中';
 $lang->story->stageList['tested']     = '测试完毕';
 $lang->story->stageList['verified']   = '已验收';
+$lang->story->stageList['rejected']   = '验收失败';
+$lang->story->stageList['delivering'] = '交付中';
+$lang->story->stageList['pending']    = '待发布';
 $lang->story->stageList['released']   = '已发布';
 $lang->story->stageList['closed']     = '已关闭';
 
 $lang->story->reasonList['']           = '';
 $lang->story->reasonList['done']       = '已完成';
-$lang->story->reasonList['subdivided'] = '已细分';
+$lang->story->reasonList['subdivided'] = '已拆分';
 $lang->story->reasonList['duplicate']  = '重复';
 $lang->story->reasonList['postponed']  = '延期';
 $lang->story->reasonList['willnotdo']  = '不做';
@@ -300,7 +325,7 @@ $lang->story->legendCases          = '相关用例';
 $lang->story->legendBuilds         = '相关版本';
 $lang->story->legendReleases       = '相关发布';
 $lang->story->legendLinkStories    = "相关{$lang->SRCommon}";
-$lang->story->legendChildStories   = "细分{$lang->SRCommon}";
+$lang->story->legendChildStories   = "拆分{$lang->SRCommon}";
 $lang->story->legendSpec           = "需求描述";
 $lang->story->legendVerify         = '验收标准';
 $lang->story->legendMisc           = '其他相关';
@@ -318,31 +343,45 @@ $lang->story->affectedBugs         = '影响的Bug';
 $lang->story->affectedCases        = '影响的用例';
 $lang->story->affectedTwins        = '影响的孪生需求';
 
-$lang->story->specTemplate          = "建议参考的模板：作为一名<某种类型的用户>，我希望<达成某些目的>，这样可以<开发的价值>。";
-$lang->story->needNotReview         = '不需要评审';
-$lang->story->successSaved          = "{$lang->SRCommon}成功添加，";
-$lang->story->confirmDelete         = "您确认删除该{$lang->SRCommon}吗?";
-$lang->story->confirmRecall         = "您确认撤销该{$lang->SRCommon}吗?";
-$lang->story->errorEmptyChildStory  = "『细分{$lang->SRCommon}』不能为空。";
-$lang->story->errorNotSubdivide     = "状态不是激活，或者阶段不是未开始的{$lang->SRCommon}，或者是子需求，则不能细分。";
-$lang->story->errorEmptyReviewedBy  = "『{$lang->story->reviewers}』不能为空。";
-$lang->story->mustChooseResult      = '必须选择评审意见';
-$lang->story->mustChoosePreVersion  = '必须选择回溯的版本';
-$lang->story->noStory               = "暂时没有{$lang->SRCommon}。";
-$lang->story->noRequirement         = "暂时没有{$lang->URCommon}。";
-$lang->story->ignoreChangeStage     = "{$lang->SRCommon} %s 状态为草稿或已关闭，本次操作已被过滤。";
-$lang->story->cannotDeleteParent    = "不能删除父{$lang->SRCommon}";
-$lang->story->moveChildrenTips      = "修改父{$lang->SRCommon}的所属{$lang->productCommon}会将其下的子{$lang->SRCommon}也移动到所选{$lang->productCommon}下。";
-$lang->story->changeTips            = '该软件需求关联的用户需求有变更，点击“不变更”忽略此条变更，点击“变更”来进行该软件需求的变更。';
-$lang->story->estimateMustBeNumber  = '估算值必须是数字';
-$lang->story->estimateMustBePlus    = '估算值不能是负数';
-$lang->story->confirmChangeBranch   = $lang->SRCommon . '%s已关联在之前所属分支的计划中，调整分支后，' . $lang->SRCommon . '将从之前所属分支的计划中移除，请确认是否继续修改上述' . $lang->SRCommon . '的分支。';
-$lang->story->confirmChangePlan     = $lang->SRCommon . '%s已关联在之前计划的所属分支中，调整分支后，' . $lang->SRCommon . '将会从计划中移除，请确认是否继续修改计划的所属分支。';
-$lang->story->errorDuplicateStory   = $lang->SRCommon . '%s不存在';
-$lang->story->confirmRecallChange   = "撤销变更后，需求内容会回退至变更前的版本，您确定要撤销吗？";
-$lang->story->confirmRecallReview   = "您确定要撤回评审吗？";
-$lang->story->noStoryToTask         = "只有激活的{$lang->SRCommon}才能转为任务！";
-$lang->story->ignoreClosedStory     = "{$lang->SRCommon} %s 状态为已关闭，本次操作已被过滤。";
+$lang->story->specTemplate           = "建议参考的模板：作为一名<某种类型的用户>，我希望<达成某些目的>，这样可以<开发的价值>。";
+$lang->story->needNotReview          = '不需要评审';
+$lang->story->childStoryTitle        = '包含%s个子需求，其中%s个已完成';
+$lang->story->childTaskTitle         = '包含%s个子任务，其中%s个已完成';
+$lang->story->successSaved           = "{$lang->SRCommon}成功添加，";
+$lang->story->confirmDelete          = "您确认删除该{$lang->SRCommon}吗?";
+$lang->story->confirmRecall          = "您确认撤销该{$lang->SRCommon}吗?";
+$lang->story->errorEmptyChildStory   = "『拆分{$lang->SRCommon}』不能为空。";
+$lang->story->errorNotSubdivide      = "状态不是激活，或者阶段不是未开始的{$lang->SRCommon}，或者是子需求，则不能拆分。";
+$lang->story->errorMaxGradeSubdivide = "该需求的层级已经达到系统设置的最大层级，不能拆分同类型需求。";
+$lang->story->errorStepwiseSubdivide = "该需求类型不允许跨层级拆分，后台可以更改此设置。";
+$lang->story->errorCannotSplit       = "该需求已拆分此类型的子需求，不能拆分为其他类型需求。";
+$lang->story->errorParentSplitTask   = "父需求不能转任务，本次操作已过滤。";
+$lang->story->errorERURSplitTask     = "父需求、{$lang->ERCommon}、{$lang->URCommon}不能转任务，本次操作已过滤。";
+$lang->story->errorEmptyReviewedBy   = "『{$lang->story->reviewers}』不能为空。";
+$lang->story->mustChooseResult       = '必须选择评审意见';
+$lang->story->mustChoosePreVersion   = '必须选择回溯的版本';
+$lang->story->noEpic                 = "暂时没有{$lang->ERCommon}。";
+$lang->story->noStory                = "暂时没有{$lang->SRCommon}。";
+$lang->story->noRequirement          = "暂时没有{$lang->URCommon}。";
+$lang->story->ignoreChangeStage      = "{$lang->SRCommon} %s 状态为草稿或已关闭，本次操作已被过滤。";
+$lang->story->cannotDeleteParent     = "不能删除父{$lang->SRCommon}";
+$lang->story->moveChildrenTips       = "确认修改所属产品吗，修改后，需求的所有子级需求也会跟随变更。";
+$lang->story->changeTips             = '该软件需求关联的用户需求有变更，点击“不变更”忽略此条变更，点击“变更”来进行该软件需求的变更。';
+$lang->story->estimateMustBeNumber   = '估算值必须是数字';
+$lang->story->estimateMustBePlus     = '估算值不能是负数';
+$lang->story->confirmChangeBranch    = $lang->SRCommon . '%s已关联在之前所属分支的计划中，调整分支后，' . $lang->SRCommon . '将从之前所属分支的计划中移除，请确认是否继续修改上述' . $lang->SRCommon . '的分支。';
+$lang->story->confirmChangePlan      = $lang->SRCommon . '%s已关联在之前计划的所属分支中，调整分支后，' . $lang->SRCommon . '将会从计划中移除，请确认是否继续修改计划的所属分支。';
+$lang->story->errorDuplicateStory    = $lang->SRCommon . '%s不存在';
+$lang->story->confirmRecallChange    = "撤销变更后，需求内容会回退至变更前的版本，您确定要撤销吗？";
+$lang->story->confirmRecallReview    = "您确定要撤回评审吗？";
+$lang->story->noStoryToTask          = "只有激活的{$lang->SRCommon}才能转为任务！";
+$lang->story->ignoreClosedStory      = "{$lang->SRCommon} %s 状态为已关闭，本次操作已被过滤。";
+$lang->story->changeProductTips      = "确认修改所属产品吗，修改后，需求的所有子级需求也会跟随变更。";
+$lang->story->gradeOverflow          = "系统检测该需求下子需求的最大层级为%s，同步修改后为%s，超出系统设置的层级范围，无法修改。";
+$lang->story->batchGradeOverflow     = "%s需求的父需求修改后，其子需求的层级会超出系统设置的层级范围，本次修改已将其忽略。";
+$lang->story->batchGradeSameRoot     = '%s需求存在父子关系，将不会被修改需求层级。';
+$lang->story->batchGradeGtParent     = '%s需求的层级不能高于其父需求，本次修改已将其忽略。';
+$lang->story->batchParentError       = "%s需求的父需求不能为其本身或其子需求，本次修改已将其忽略。";
 
 $lang->story->form = new stdclass();
 $lang->story->form->area     = "该{$lang->SRCommon}所属范围";
@@ -356,6 +395,7 @@ $lang->story->action->rejectreviewed        = array('main' => '$date, 由 <stron
 $lang->story->action->recalled              = array('main' => '$date, 由 <strong>$actor</strong> 撤销评审。');
 $lang->story->action->closed                = array('main' => '$date, 由 <strong>$actor</strong> 关闭，原因为 <strong>$extra</strong> $appendLink。', 'extra' => 'reasonList');
 $lang->story->action->closedbysystem        = array('main' => '$date, 系统判定由于关闭了所有子需求，自动关闭父需求。');
+$lang->story->action->closedbyparent        = array('main' => '$date, 系统判定由于关闭了父需求，自动关闭子需求。');
 $lang->story->action->reviewpassed          = array('main' => '$date, 由 <strong>系统</strong> 判定，结果为 <strong>确认通过</strong>。');
 $lang->story->action->reviewrejected        = array('main' => '$date, 由 <strong>系统</strong> 关闭，原因为 <strong>拒绝</strong>。');
 $lang->story->action->reviewclarified       = array('main' => '$date, 由 <strong>系统</strong> 判定，结果为 <strong>有待明确</strong>，请编辑后重新发起评审。');
@@ -373,12 +413,13 @@ $lang->story->action->linked2release        = array('main' => '$date, 由 <stron
 $lang->story->action->unlinkedfromrelease   = array('main' => '$date, 由 <strong>$actor</strong> 从发布 <strong>$extra</strong> 移除。');
 $lang->story->action->linked2revision       = array('main' => '$date, 由 <strong>$actor</strong> 关联到代码提交 <strong>$extra</strong>');
 $lang->story->action->unlinkedfromrevision  = array('main' => '$date, 由 <strong>$actor</strong> 取消关联到代码提交 <strong>$extra</strong>');
-$lang->story->action->linkrelatedstory      = array('main' => "\$date, 由 <strong>\$actor</strong> 关联相关{$lang->SRCommon} <strong>\$extra</strong>。");
-$lang->story->action->subdividestory        = array('main' => "\$date, 由 <strong>\$actor</strong> 细分为{$lang->SRCommon}   <strong>\$extra</strong>。");
-$lang->story->action->unlinkrelatedstory    = array('main' => "\$date, 由 <strong>\$actor</strong> 移除相关{$lang->SRCommon} <strong>\$extra</strong>。");
-$lang->story->action->unlinkchildstory      = array('main' => "\$date, 由 <strong>\$actor</strong> 移除细分{$lang->SRCommon} <strong>\$extra</strong>。");
+$lang->story->action->linkrelatedstory      = array('main' => "\$date, 由 <strong>\$actor</strong> 关联相关需求 <strong>\$extra</strong>。");
+$lang->story->action->subdividestory        = array('main' => "\$date, 由 <strong>\$actor</strong> 拆分为{$lang->SRCommon}   <strong>\$extra</strong>。");
+$lang->story->action->unlinkrelatedstory    = array('main' => "\$date, 由 <strong>\$actor</strong> 移除相关需求 <strong>\$extra</strong>。");
+$lang->story->action->unlinkchildstory      = array('main' => "\$date, 由 <strong>\$actor</strong> 移除拆分{$lang->SRCommon} <strong>\$extra</strong>。");
 $lang->story->action->recalledchange        = array('main' => "\$date, 由 <strong>\$actor</strong> 撤销变更。");
 $lang->story->action->synctwins             = array('main' => "\$date, 系统判断由于孪生需求 <strong>\$extra</strong> \$operate，本需求同步调整。", 'operate' => 'operateList');
+$lang->story->action->syncgrade             = array('main' => "\$date, 系统判断由于父需求层级变动，本需求层级同步修改为 <strong>\$extra</strong>。");
 $lang->story->action->linked2roadmap        = array('main' => '$date, 由 <strong>$actor</strong> 关联到路标 <strong>$extra</strong>。');
 $lang->story->action->unlinkedfromroadmap   = array('main' => '$date, 由 <strong>$actor</strong> 从路标 <strong>$extra</strong> 移除。');
 $lang->story->action->changedbycharter      = array('main' => '$date, 由 <strong>$actor</strong> 通过立项申请 <strong>$extra</strong> ，需求状态同步调整为已立项。');
@@ -390,18 +431,19 @@ $lang->story->report->select = '请选择报表类型';
 $lang->story->report->create = '生成报表';
 $lang->story->report->value  = "需求数";
 
-$lang->story->report->charts['storiesPerProduct']        = $lang->productCommon . "{$lang->SRCommon}数量";
-$lang->story->report->charts['storiesPerModule']         = "模块{$lang->SRCommon}数量";
-$lang->story->report->charts['storiesPerSource']         = "按{$lang->SRCommon}来源统计";
-$lang->story->report->charts['storiesPerPlan']           = "按计划进行统计";
-$lang->story->report->charts['storiesPerStatus']         = '按状态进行统计';
-$lang->story->report->charts['storiesPerStage']          = '按所处阶段进行统计';
-$lang->story->report->charts['storiesPerPri']            = '按优先级进行统计';
-$lang->story->report->charts['storiesPerEstimate']       = "按预计{$lang->hourCommon}进行统计";
-$lang->story->report->charts['storiesPerOpenedBy']       = '按由谁创建来进行统计';
-$lang->story->report->charts['storiesPerAssignedTo']     = '按当前指派来进行统计';
-$lang->story->report->charts['storiesPerClosedReason']   = '按关闭原因来进行统计';
-$lang->story->report->charts['storiesPerChange']         = '按变更次数来进行统计';
+$lang->story->report->charts['storiesPerProduct']      = $lang->productCommon . "{$lang->SRCommon}数量";
+$lang->story->report->charts['storiesPerModule']       = "模块{$lang->SRCommon}数量";
+$lang->story->report->charts['storiesPerSource']       = "按{$lang->SRCommon}来源统计";
+$lang->story->report->charts['storiesPerPlan']         = "按计划进行统计";
+$lang->story->report->charts['storiesPerStatus']       = '按状态进行统计';
+$lang->story->report->charts['storiesPerStage']        = '按所处阶段进行统计';
+$lang->story->report->charts['storiesPerPri']          = '按优先级进行统计';
+$lang->story->report->charts['storiesPerEstimate']     = "按预计{$lang->hourCommon}进行统计";
+$lang->story->report->charts['storiesPerOpenedBy']     = '按由谁创建来进行统计';
+$lang->story->report->charts['storiesPerAssignedTo']   = '按当前指派来进行统计';
+$lang->story->report->charts['storiesPerClosedReason'] = '按关闭原因来进行统计';
+$lang->story->report->charts['storiesPerChange']       = '按变更次数来进行统计';
+$lang->story->report->charts['storiesPerGrade']        = '按层级来进行统计';
 
 $lang->story->report->options = new stdclass();
 $lang->story->report->options->graph  = new stdclass();
@@ -421,6 +463,7 @@ $lang->story->report->storiesPerAssignedTo   = new stdclass();
 $lang->story->report->storiesPerClosedReason = new stdclass();
 $lang->story->report->storiesPerEstimate     = new stdclass();
 $lang->story->report->storiesPerChange       = new stdclass();
+$lang->story->report->storiesPerGrade        = new stdclass();
 
 $lang->story->report->storiesPerProduct->item      = $lang->productCommon;
 $lang->story->report->storiesPerModule->item       = '模块';
@@ -434,6 +477,7 @@ $lang->story->report->storiesPerAssignedTo->item   = '指派给';
 $lang->story->report->storiesPerClosedReason->item = '原因';
 $lang->story->report->storiesPerEstimate->item     = "预计{$lang->hourCommon}";
 $lang->story->report->storiesPerChange->item       = '变更次数';
+$lang->story->report->storiesPerGrade->item        = '层级';
 
 $lang->story->report->storiesPerProduct->graph      = new stdclass();
 $lang->story->report->storiesPerModule->graph       = new stdclass();
@@ -447,6 +491,7 @@ $lang->story->report->storiesPerAssignedTo->graph   = new stdclass();
 $lang->story->report->storiesPerClosedReason->graph = new stdclass();
 $lang->story->report->storiesPerEstimate->graph     = new stdclass();
 $lang->story->report->storiesPerChange->graph       = new stdclass();
+$lang->story->report->storiesPerGrade->graph        = new stdclass();
 
 $lang->story->report->storiesPerProduct->graph->xAxisName      = $lang->productCommon;
 $lang->story->report->storiesPerModule->graph->xAxisName       = '模块';
@@ -460,6 +505,7 @@ $lang->story->report->storiesPerAssignedTo->graph->xAxisName   = '当前指派';
 $lang->story->report->storiesPerClosedReason->graph->xAxisName = '关闭原因';
 $lang->story->report->storiesPerEstimate->graph->xAxisName     = '预计时间';
 $lang->story->report->storiesPerChange->graph->xAxisName       = '变更次数';
+$lang->story->report->storiesPerGrade->graph->xAxisName        = '层级';
 
 $lang->story->placeholder = new stdclass();
 $lang->story->placeholder->estimate = $lang->story->hour;
@@ -488,21 +534,20 @@ $lang->story->categoryList['experience']  = '体验';
 $lang->story->categoryList['improve']     = '改进';
 $lang->story->categoryList['other']       = '其他';
 
-$lang->story->changeTip = "只有激活状态的{$lang->SRCommon}，才能进行变更";
+$lang->story->changeTip = "只有激活状态的需求，才能进行变更";
 
 $lang->story->reviewTip = array();
-$lang->story->reviewTip['active']      = "该{$lang->SRCommon}已是激活状态，无需评审";
-$lang->story->reviewTip['notReviewer'] = "您不是该{$lang->SRCommon}的评审人员，无法进行评审操作";
+$lang->story->reviewTip['active']      = "该需求已是激活状态，无需评审";
+$lang->story->reviewTip['notReviewer'] = "您不是该需求的评审人员，无法进行评审操作";
 $lang->story->reviewTip['reviewed']    = '您已评审';
 
 $lang->story->recallTip = array();
-$lang->story->recallTip['actived'] = "该{$lang->SRCommon}未发起评审流程，无需撤销操作";
+$lang->story->recallTip['actived'] = "该需求未发起评审流程，无需撤销操作";
 
 $lang->story->subDivideTip = array();
-$lang->story->subDivideTip['subStory']   = "子{$lang->SRCommon}无法细分";
-$lang->story->subDivideTip['notWait']    = "该{$lang->SRCommon}%s，无法进行细分操作";
-$lang->story->subDivideTip['notActive']  = "%s不是激活状态，无法进行细分操作";
-$lang->story->subDivideTip['twinsSplit'] = '孪生需求不可细分';
+$lang->story->subDivideTip['notWait']    = "该需求%s，无法进行拆分操作";
+$lang->story->subDivideTip['notActive']  = "需求不是激活状态，无法进行拆分操作";
+$lang->story->subDivideTip['twinsSplit'] = '孪生需求不可拆分';
 
 $lang->story->featureBar['browse']['all']       = '全部';
 $lang->story->featureBar['browse']['unclosed']  = $lang->story->unclosed;
@@ -520,31 +565,6 @@ $lang->story->operateList['submitreview']   = '提交评审';
 $lang->story->operateList['recalledchange'] = '撤销变更';
 $lang->story->operateList['recalled']       = '撤销评审';
 
-$lang->requirement->common             = $lang->URCommon;
-$lang->requirement->create             = "提{$lang->URCommon}";
-$lang->requirement->batchCreate        = "批量创建";
-$lang->requirement->editAction         = "编辑{$lang->URCommon}";
-$lang->requirement->changeAction       = "变更{$lang->URCommon}";
-$lang->requirement->assignAction       = "指派{$lang->URCommon}";
-$lang->requirement->reviewAction       = "评审{$lang->URCommon}";
-$lang->requirement->subdivideAction    = "细分{$lang->URCommon}";
-$lang->requirement->closeAction        = "关闭{$lang->URCommon}";
-$lang->requirement->activateAction     = "激活{$lang->URCommon}";
-$lang->requirement->deleteAction       = "删除{$lang->URCommon}";
-$lang->requirement->exportAction       = "导出{$lang->URCommon}";
-$lang->requirement->reportAction       = "统计报表";
-$lang->requirement->recall             = $lang->story->recall;
-$lang->requirement->batchReview        = '批量评审';
-$lang->requirement->batchEdit          = "批量编辑";
-$lang->requirement->batchClose         = '批量关闭';
-$lang->requirement->view               = "{$lang->URCommon}详情";
-$lang->requirement->linkRequirementsAB = "关联相关{$lang->URCommon}";
-$lang->requirement->batchChangeBranch  = "批量修改分支";
-$lang->requirement->batchAssignTo      = "批量指派";
-$lang->requirement->batchChangeModule  = "批量修改模块";
-$lang->requirement->submitReview       = $lang->story->submitReview;
-$lang->requirement->linkStory          = "关联{$lang->SRCommon}";
-
 $lang->story->addBranch      = '添加%s';
 $lang->story->deleteBranch   = '删除%s';
 $lang->story->notice->branch = "每个分支会建立一个需求，需求间互为孪生关系。孪生需求间除{$lang->productCommon}、分支、模块、计划、阶段字段外均保持同步，后期您可以手动解除孪生关系。";
@@ -552,3 +572,12 @@ $lang->story->notice->branch = "每个分支会建立一个需求，需求间互
 $lang->story->relievedTwinsRelation     = '解除孪生关系';
 $lang->story->relievedTwinsRelationTips = '孪生关系解除后无法恢复，需求的关闭将不再同步。';
 $lang->story->changeRelievedTwinsTips   = '孪生关系解除后无法恢复，孪生需求间内容不再同步。';
+
+$lang->story->trackOrderByList['id']       = '按ID';
+$lang->story->trackOrderByList['pri']      = '按优先级';
+$lang->story->trackOrderByList['status']   = '按状态';
+$lang->story->trackOrderByList['stage']    = '按阶段';
+$lang->story->trackOrderByList['category'] = '按类别';
+
+$lang->story->trackSortList['asc']  = '升序';
+$lang->story->trackSortList['desc'] = '降序';
diff --git a/module/story/model.php b/module/story/model.php
index 84a2d3a444..81249fd17d 100644
--- a/module/story/model.php
+++ b/module/story/model.php
@@ -44,10 +44,7 @@ class storyModel extends model
         if($setImgSize) $story->spec   = $this->file->setImgSize($story->spec);
         if($setImgSize) $story->verify = $this->file->setImgSize($story->verify);
 
-        /* Get relation story ID.*/
-        $story->relationStoryID = $this->getRelationStoryID($story->id, $story->type);
-
-        $storyIdList = $storyID . ($story->relationStoryID ? "," . trim($story->relationStoryID, ',') : '') . ($story->twins ? "," . trim($story->twins, ',') : '');
+        $storyIdList = $storyID . ($story->twins ? "," . trim($story->twins, ',') : '');
         $story->executions = $this->dao->select('t2.project, t2.id, t2.name, t2.status, t2.type, t2.multiple')->from(TABLE_PROJECTSTORY)->alias('t1')
             ->leftJoin(TABLE_EXECUTION)->alias('t2')->on('t1.project = t2.id')
             ->where('t2.type')->in('sprint,stage,kanban')
@@ -58,10 +55,17 @@ class storyModel extends model
         $story->tasks = $this->dao->select('id,name,assignedTo,execution,project,status,consumed,`left`,type')->from(TABLE_TASK)->where('deleted')->eq(0)->andWhere('story')->in($storyIdList)->orderBy('id DESC')->fetchGroup('execution');
         if($this->config->vision == 'lite' && $story->tasks) $story->executions += $this->dao->select('project,id,name,status,type,multiple')->from(TABLE_EXECUTION)->where('id')->in(array_keys($story->tasks))->orderBy('`order` DESC')->fetchAll('id');
 
-        if($story->toBug)          $story->toBugTitle = $this->dao->findById($story->toBug)->from(TABLE_BUG)->fetch('title');
-        if($story->parent > 0)     $story->parentName = $this->dao->findById($story->parent)->from(TABLE_STORY)->fetch('title');
-        if($story->fromStory)      $story->sourceName = $this->dao->select('title')->from(TABLE_STORY)->where('id')->eq($story->fromStory)->fetch('title');
-        if($story->parent == '-1') $story->children   = $this->dao->select('*')->from(TABLE_STORY)->where('parent')->eq($storyID)->andWhere('deleted')->eq(0)->fetchAll('id');
+        if($story->parent > 0)
+        {
+            $parent = $this->dao->findById($story->parent)->from(TABLE_STORY)->fetch();
+            $story->parentName    = $parent->title;
+            $story->parentType    = $parent->type;
+            $story->parentChanged = $story->parentVersion > 0 && $parent->version > $story->parentVersion && $parent->status == 'active';
+        }
+
+        if($story->toBug)           $story->toBugTitle = $this->dao->findById($story->toBug)->from(TABLE_BUG)->fetch('title');
+        if($story->fromStory)       $story->sourceName = $this->dao->select('title')->from(TABLE_STORY)->where('id')->eq($story->fromStory)->fetch('title');
+        if($story->isParent == '1') $story->children   = $this->dao->select('*')->from(TABLE_STORY)->where('parent')->eq($storyID)->andWhere('deleted')->eq(0)->orderBy('id_desc')->fetchAll('id');
         if($story->plan)
         {
             $plans = $this->dao->select('id,title,branch')->from(TABLE_PRODUCTPLAN)->where('id')->in($story->plan)->fetchAll('id');
@@ -72,29 +76,11 @@ class storyModel extends model
             }
         }
 
-        $extraStories = array();
-        if($story->duplicateStory) $extraStories = array($story->duplicateStory);
-        if($story->linkStories)    $extraStories = array_merge($extraStories, explode(',', $story->linkStories));
-        if($story->childStories)   $extraStories = array_merge($extraStories, explode(',', $story->childStories));
-
-        $extraStories = array_unique($extraStories);
+        $extraStories = $story->duplicateStory ? array($story->duplicateStory) : array();
         if(!empty($extraStories)) $story->extraStories = $this->dao->select('id,title')->from(TABLE_STORY)->where('id')->in($extraStories)->fetchPairs();
 
-        $linkStoryField = $story->type == 'story' ? 'linkStories' : 'linkRequirements';
-        if($story->{$linkStoryField})
-        {
-            $multiBranches = $this->loadModel('branch')->getAllPairs('noproductname');
-            $multiProducts = $this->loadModel('product')->getMultiBranchPairs();
-            $linkStoryList = $this->dao->select('id,title,product,branch,status')->from(TABLE_STORY)->where('id')->in($story->{$linkStoryField})->fetchAll('id');
-            $linkStoryTitles = array();
-            foreach($linkStoryList as $linkStory)
-            {
-                $linkStoryTitles[$linkStory->id] = $linkStory->title;
-                if(isset($multiProducts[$linkStory->product]) && isset($multiBranches[$linkStory->branch])) $linkStory->branchName = $multiBranches[$linkStory->branch];
-            }
-            $story->linkStoryList   = $linkStoryList;
-            $story->linkStoryTitles = $linkStoryTitles;
-        }
+        $story->hasOtherTypeChild = $this->dao->select('id')->from(TABLE_STORY)->where('parent')->eq($story->id)->andWhere('type')->ne($story->type)->andWhere('deleted')->eq('0')->fetch('id');
+        $story->hasSameTypeChild  = $this->dao->select('id')->from(TABLE_STORY)->where('parent')->eq($story->id)->andWhere('type')->eq($story->type)->andWhere('deleted')->eq('0')->fetch('id');
 
         $story->openedDate     = helper::isZeroDate($story->openedDate)     ? '' : substr($story->openedDate,     0, 19);
         $story->assignedDate   = helper::isZeroDate($story->assignedDate)   ? '' : substr($story->assignedDate,   0, 19);
@@ -206,32 +192,21 @@ class storyModel extends model
     {
         $users = $this->loadModel('user')->getPairs('pofirst|nodeleted', "{$story->lastEditedBy},{$story->openedBy},{$story->assignedTo}");
 
-        $story = $this->storyTao->getAffectedProjects($story, $users);
-        $story = $this->storyTao->getAffectedBugs($story, $users);
-        $story = $this->storyTao->getAffectedCases($story, $users);
-        $story = $this->storyTao->getAffectedTwins($story, $users);
+        if($story->type == 'story')
+        {
+            $story = $this->storyTao->getAffectedProjects($story, $users);
+            $story = $this->storyTao->getAffectedBugs($story, $users);
+            $story = $this->storyTao->getAffectedCases($story, $users);
+            $story = $this->storyTao->getAffectedTwins($story, $users);
+        }
+        else
+        {
+            $story = $this->storyTao->getAffectedChildren($story, $users);
+        }
 
         return $story;
     }
 
-    /**
-     * 获取用户需求细分的软件需求。
-     * Get relation story ID.
-     *
-     * @param  int    $storyID
-     * @param  string $storyType
-     * @access public
-     * @return string
-     */
-    public function getRelationStoryID(int $storyID, string $storyType = 'requirement'): string
-    {
-        $relationStoryIdList = array();
-        $relationStoryList   = $this->getStoryRelation($storyID, $storyType);
-        foreach($relationStoryList as $relationStory) $relationStoryIdList[$relationStory->id] = $relationStory->id;
-
-        return implode(',', $relationStoryIdList);
-    }
-
     /**
      *  Get requirements for story.
      *
@@ -255,7 +230,7 @@ class storyModel extends model
      * @param  int          $executionID
      * @param  int          $productID
      * @param  string       $orderBy
-     * @param  string       $type
+     * @param  string       $browseType
      * @param  int|string   $param
      * @param  string       $storyType
      * @param  array|string $excludeStories
@@ -263,44 +238,66 @@ class storyModel extends model
      * @access public
      * @return array
      */
-    public function getExecutionStories(int $executionID = 0, int $productID = 0, string $orderBy = 't1.`order`_desc', string $type = 'byModule', string $param = '0', string $storyType = 'story', array|string $excludeStories = '', object|null $pager = null): array
+    public function getExecutionStories(int $executionID = 0, int $productID = 0, string $orderBy = 't1.`order`_desc', string $browseType = 'byModule', string $param = '0', string $storyType = 'story', array|string $excludeStories = '', object|null $pager = null): array
     {
         if(commonModel::isTutorialMode()) return $this->loadModel('tutorial')->getExecutionStories();
 
         if(empty($executionID)) return array();
+        $execution = $this->dao->select('*')->from(TABLE_PROJECT)->where('id')->eq($executionID)->fetch();
+
+        $sqlCondition = '';
+        $module       = $execution->type == 'project' ? 'project' : 'execution';
+        $showGrades   = isset($this->config->{$module}->showGrades) ? $this->config->{$module}->showGrades : null;
+        if($showGrades)
+        {
+            $items = explode(',', $showGrades);
+            $conditions = array();
+            foreach($items as $item)
+            {
+                preg_match('/^([a-zA-Z]+)(\d+)$/', $item, $matches);
+                $type  = $matches[1];
+                $grade = $matches[2];
+                $conditions[$type][] = $grade;
+            }
+
+            $sqlCondition = '(';
+            foreach($conditions as $type => $grades) $sqlCondition .= "(t2.type = '$type' AND t2.grade " . helper::dbIN($grades) . ") OR ";
+            $sqlCondition  = rtrim($sqlCondition, 'OR ');
+            $sqlCondition .= ')';
+        }
 
         /* 格式化参数。 */
-        $orderBy = str_replace('branch_', 't2.branch_', $orderBy);
-        $type    = strtolower($type);
+        $orderBy    = str_replace('branch_', 't2.branch_', $orderBy);
+        $browseType = strtolower($browseType);
         if(is_string($excludeStories)) $excludeStories = explode(',', $excludeStories);
 
         /* 获取需求。 */
-        if($type == 'bysearch') $stories = $this->storyTao->getExecutionStoriesBySearch($executionID, (int)$param, $productID, $orderBy, $storyType, $excludeStories, $pager);
-        if($type != 'bysearch')
+        if($browseType == 'bysearch') $stories = $this->storyTao->getExecutionStoriesBySearch($executionID, (int)$param, $productID, $orderBy, $storyType, $sqlCondition, $excludeStories, $pager);
+        if($browseType != 'bysearch')
         {
             /* 根据请求类型和参数，获取查询要用到的条件。 */
-            $execution    = $this->dao->select('*')->from(TABLE_PROJECT)->where('id')->eq($executionID)->fetch();
-            $modules      = $this->storyTao->getModules4ExecutionStories($type, $param);
-            $storyIdList  = $this->storyTao->getIdListOfExecutionsByProjectID($type, $executionID);
-            $productParam = ($type == 'byproduct' and $param)        ? $param : $productID;
-            $branchParam  = ($type == 'bybranch'  and $param !== '') ? $param : (string)$this->cookie->storyBranchParam;
+            $modules      = $this->storyTao->getModules4ExecutionStories($browseType, $param);
+            $storyIdList  = $this->storyTao->getIdListOfExecutionsByProjectID($browseType, $executionID);
+            $productParam = ($browseType == 'byproduct' and $param)        ? $param : $productID;
+            $branchParam  = ($browseType == 'bybranch'  and $param !== '') ? $param : (string)$this->cookie->storyBranchParam;
 
             /* 设置查询需求的公共 DAO 变量。 */
-            $type     = (strpos('bymodule|byproduct', $type) !== false and $this->session->storyBrowseType) ? $this->session->storyBrowseType : $type;
+            $browseType = (strpos('bymodule|byproduct', $browseType) !== false and $this->session->storyBrowseType) ? $this->session->storyBrowseType : $browseType;
             $storyDAO = $this->dao->select("DISTINCT t1.*, t2.*, IF(t2.`pri` = 0, {$this->config->maxPriValue}, t2.`pri`) as priOrder, t3.type as productType, t2.version as version")->from(TABLE_PROJECTSTORY)->alias('t1')
                 ->leftJoin(TABLE_STORY)->alias('t2')->on('t1.story = t2.id')
                 ->leftJoin(TABLE_PRODUCT)->alias('t3')->on('t2.product = t3.id')
                 ->where('t1.project')->eq($executionID)
-                ->andWhere('t2.type')->eq($storyType)
                 ->andWhere('t2.deleted')->eq(0)
                 ->andWhere('t3.deleted')->eq(0)
+                ->beginIF($storyType != 'all')->andWhere('t2.type')->in($storyType)->fi()
+                ->beginIF($sqlCondition)->andWhere($sqlCondition)->fi()
                 ->beginIF($excludeStories)->andWhere('t2.id')->notIN($excludeStories)->fi()
                 ->beginIF($this->session->storyBrowseType and strpos('changing|', $this->session->storyBrowseType) !== false)->andWhere('t2.status')->in($this->storyTao->getUnclosedStatusKeys())->fi()
                 ->beginIF($modules)->andWhere('t2.module')->in($modules)->fi();
 
             /* 根据传入的 ID 是项目还是执行分别查询需求。 */
-            if($execution->type == 'project') $stories = $this->storyTao->fetchProjectStories($storyDAO, $productID, $type, $branchParam, $storyIdList, $orderBy, $pager);
-            if($execution->type != 'project') $stories = $this->storyTao->fetchExecutionStories($storyDAO, (int)$productParam, $type, $branchParam, $orderBy, $pager);
+            if($execution->type == 'project') $stories = $this->storyTao->fetchProjectStories($storyDAO, $productID, $browseType, $branchParam, $storyIdList, $orderBy, $pager);
+            if($execution->type != 'project') $stories = $this->storyTao->fetchExecutionStories($storyDAO, (int)$productParam, $browseType, $branchParam, $orderBy, $pager);
         }
 
         $stories = $this->storyTao->fixBranchStoryStage($stories);
@@ -375,11 +372,12 @@ class storyModel extends model
      * @param  array|string|int $moduleIdList
      * @param  string           $type         full|short
      * @param  string           $status       all|noclosed|changing|active|draft|closed|reviewing
-     * @param  string           $storyType    story|requirement
+     * @param  string           $storyType    story|epic|requirement
+     * @param  bool             $hasParent
      * @access public
      * @return array
      */
-    public function getExecutionStoryPairs(int $executionID = 0, int $productID = 0, string|int $branch = 'all', array|string|int $moduleIdList = '', string $type = 'full', string $status = 'all', string $storyType = 'story'): array
+    public function getExecutionStoryPairs(int $executionID = 0, int $productID = 0, string|int $branch = 'all', array|string|int $moduleIdList = '', string $type = 'full', string $status = 'all', string $storyType = '', bool $hasParent = true): array
     {
         if(commonModel::isTutorialMode()) return $this->loadModel('tutorial')->getExecutionStoryPairs();
 
@@ -388,8 +386,9 @@ class storyModel extends model
             ->leftJoin(TABLE_STORY)->alias('t2')->on('t1.story = t2.id')
             ->leftJoin(TABLE_PRODUCT)->alias('t3')->on('t1.product = t3.id')
             ->where('t1.project')->eq($executionID)
+            ->beginIF($storyType)->andWhere('t2.type')->in($storyType)->fi()
+            ->beginIF(!$hasParent)->andWhere('t2.isParent')->eq('0')->fi()
             ->andWhere('t2.deleted')->eq('0')
-            ->andWhere('t2.type')->eq($storyType)
             ->beginIF($productID)->andWhere('t2.product')->eq($productID)->fi()
             ->beginIF($branch !== 'all')->andWhere('t2.branch')->in("0,$branch")->fi()
             ->beginIF($moduleIdList)->andWhere('t2.module')->in($moduleIdList)->fi()
@@ -442,6 +441,18 @@ class storyModel extends model
 
         $this->loadModel('common')->saveQueryCondition($this->dao->get(), 'story', false);
 
+        /* Add parent list for display. */
+        foreach($stories as $story)
+        {
+            $story->parent = array();
+            foreach(explode(',', trim($story->path, ',')) as $parentID)
+            {
+                if(!$parentID) continue;
+                if($parentID == $story->id) continue;
+                $story->parent[] = (int)$parentID;
+            }
+        }
+
         return $stories;
     }
 
@@ -517,12 +528,27 @@ class storyModel extends model
         if($executionID) $this->storyTao->linkToExecutionForCreate($executionID, $storyID, $story, $extra);
         if($bugID)       $this->storyTao->closeBugWhenToStory($bugID, $storyID);
         if(!empty($story->reviewer)) $this->storyTao->doCreateReviewer($storyID, $story->reviewer);
-        if(!empty($story->URS))      $this->storyTao->doCreateURRelations($storyID, $story->URS);
-        if(!empty($story->parent))   $this->subdivide($story->parent, array($storyID));
+        if(!empty($story->parent))
+        {
+            $this->subdivide($story->parent, array($storyID));
+            $this->updateParentStatus($storyID, $story->parent, false);
+        }
+        else
+        {
+            $this->dao->update(TABLE_STORY)
+                 ->set('root')->eq($storyID)
+                 ->set('path')->eq(",{$storyID},")
+                 ->where('id')->eq($storyID)
+                 ->exec();
+        }
         if(!empty($story->plan))
         {
             $this->updateStoryOrderOfPlan($storyID, (string)$story->plan); // Set story order in this plan.
-            $this->action->create('productplan', (int)$story->plan, 'linkstory', '', $storyID);
+            foreach(explode(',', $story->plan) as $planID)
+            {
+                if(!$planID) continue;
+                $this->action->create('productplan', (int)$planID, 'linkstory', '', $storyID);
+            }
         }
 
         $this->setStage($storyID);
@@ -642,14 +668,10 @@ class storyModel extends model
      * Batch create stories.
      *
      * @param  array  $stories
-     * @param  int    $productID
-     * @param  string $branch
-     * @param  string $type
-     * @param  int    $URID
      * @access public
      * @return array
      */
-    public function batchCreate(array $stories, int $productID = 0, string $branch = '', string $type = 'story', int $URID = 0): array
+    public function batchCreate(array $stories): array
     {
         $this->loadModel('action');
         $storyIdList = array();
@@ -660,17 +682,28 @@ class storyModel extends model
             if(!$storyID) return array();
 
             $this->storyTao->doCreateSpec($storyID, $story);
+            if(!empty($story->parent))
+            {
+                $this->subdivide($story->parent, array($storyID));
+                $this->updateParentStatus($storyID, $story->parent, false);
+            }
+            else
+            {
+                $this->dao->update(TABLE_STORY)->set('root')->eq($storyID)->set('path')->eq(",{$storyID},")->where('id')->eq($storyID)->exec();
+            }
 
             /* Update product plan stories order. */
             if(!empty($story->reviewer)) $this->storyTao->doCreateReviewer($storyID, $story->reviewer);
             if($story->plan)
             {
                 $this->updateStoryOrderOfPlan($storyID, (string)$story->plan);
-                $link2Plans[$story->plan] = empty($link2Plans[$story->plan]) ? $storyID : "{$link2Plans[$story->plan]},$storyID";
+                foreach(explode(',', (string)$story->plan) as $planID)
+                {
+                    if(!$planID) continue;
+                    $link2Plans[$planID] = empty($link2Plans[$planID]) ? $storyID : "{$link2Plans[$planID]},$storyID";
+                }
             }
 
-            if(!empty($story->URS)) $this->storyTao->doCreateURRelations($storyID, $story->URS);
-
             $this->setStage($storyID);
             $this->executeHooks($storyID);
 
@@ -691,8 +724,6 @@ class storyModel extends model
 
             $this->loadModel('score')->create('story', 'create',$storyID);
             $this->score->create('ajax', 'batchCreate');
-
-            if($URID && $storyIdList) $this->subdivide($URID, $storyIdList);
             foreach($link2Plans as $planID => $stories) $this->action->create('productplan', $planID, 'linkstory', '', $stories);
         }
 
@@ -712,7 +743,7 @@ class storyModel extends model
         $oldStory = $this->getById($storyID);
         $this->dao->update(TABLE_STORY)->data($story, 'spec,verify,deleteFiles,relievedTwins,reviewer,reviewerHasChanged')
             ->autoCheck()
-            ->batchCheck($this->config->story->change->requiredFields, 'notempty')
+            ->batchCheck($this->config->{$oldStory->type}->change->requiredFields, 'notempty')
             ->checkFlow()
             ->where('id')->eq($storyID)->exec();
         if(dao::isError()) return false;
@@ -749,12 +780,6 @@ class storyModel extends model
                 $this->updateStoryVersion($newStory);
             }
 
-            if($oldStory->type == 'requirement' && $story->status == 'active')
-            {
-                $relations = $this->storyTao->getRelation($storyID, 'requirement');
-                $this->dao->update(TABLE_STORY)->set('URChanged')->eq(1)->where('id')->in($relations)->exec();
-            }
-
             if($story->reviewerHasChanged)
             {
                 $oldStoryReviewers   = $this->getReviewerPairs($storyID, $oldStory->version);
@@ -795,9 +820,10 @@ class storyModel extends model
             $oldStory->twins = '';
         }
 
+        $moduleName = $this->app->rawModule;
         $this->dao->update(TABLE_STORY)->data($story, 'reviewer,spec,verify,deleteFiles,finalResult')
             ->autoCheck()
-            ->batchCheck($this->config->story->edit->requiredFields, 'notempty')
+            ->batchCheck($this->config->{$moduleName}->edit->requiredFields, 'notempty')
             ->checkIF(!empty($story->closedBy), 'closedReason', 'notempty')
             ->checkIF(isset($story->closedReason) and $story->closedReason == 'done', 'stage', 'notempty')
             ->checkIF(isset($story->closedReason) and $story->closedReason == 'duplicate',  'duplicateStory', 'notempty')
@@ -812,13 +838,23 @@ class storyModel extends model
         $this->storyTao->doUpdateSpec($storyID, $story, $oldStory, $addedFiles);
         $this->storyTao->doUpdateLinkStories($storyID, $story, $oldStory);
 
-        $changed = $story->parent != $oldStory->parent;
-        if($changed) $this->doChangeParent($storyID, $story, $oldStory->parent);
-        if($oldStory->parent > 0) $this->updateParentStatus($storyID, $oldStory->parent, !$changed);
+        if($story->product != $oldStory->product)
+        {
+            $childStories = $this->getAllChildId($storyID, false);
+            $story->id    = $storyID;
+            foreach($childStories as $childStoryID)
+            {
+                $this->updateStoryProduct($childStoryID, $story, $story->product);
+            }
+        }
+        if($story->grade != $oldStory->grade) $this->syncGrade($oldStory, $story);
+        $parentChanged = $story->parent != $oldStory->parent;
+        if($parentChanged) $this->doChangeParent($storyID, $story, $oldStory);
+        if($oldStory->parent > 0) $this->updateParentStatus($storyID, $oldStory->parent, !$parentChanged);
         if($story->parent > 0)
         {
-            $this->dao->update(TABLE_STORY)->set('parent')->eq('-1')->where('id')->eq($story->parent)->exec();
-            $this->updateParentStatus($storyID, $story->parent, !$changed);
+            $this->updateParentStatus($storyID, $story->parent, !$parentChanged);
+            $this->storyTao->computeParentStage($story);
         }
 
         /* Set new stage and update story sort of plan when story plan has changed. */
@@ -846,7 +882,7 @@ class storyModel extends model
                 ->fetchPairs('project', 'project');
 
             $this->loadModel('kanban');
-            foreach($executionIdList as $executionID) $this->kanban->updateLane($executionID, 'story', $storyID);
+            foreach($executionIdList as $executionID) $this->kanban->updateLane($executionID, $oldStory->type, $storyID);
         }
 
         unset($oldStory->parent, $story->parent);
@@ -870,13 +906,30 @@ class storyModel extends model
      * Update story product.
      *
      * @param  int    $storyID
+     * @param  object $parentID
      * @param  int    $productID
      * @access public
      * @return void
      */
-    public function updateStoryProduct(int $storyID, int $productID): void
+    public function updateStoryProduct(int $storyID, object $parent, int $productID): void
     {
-        $this->dao->update(TABLE_STORY)->set('product')->eq($productID)->where('id')->eq($storyID)->exec();
+        if($parent->id != $storyID)
+        {
+            $childPath = $this->dao->select('path')->from(TABLE_STORY)->where('id')->eq($storyID)->fetch('path');
+            $childPath = strstr($childPath, ",{$parent->id},");
+            $this->dao->update(TABLE_STORY)
+                 ->set('product')->eq($parent->product)
+                 ->set('module')->eq(0)
+                 ->set('root')->eq($parent->root)
+                 ->set('path')->eq($childPath)
+                 ->where('id')->eq($storyID)
+                 ->exec();
+        }
+        else
+        {
+            $this->dao->update(TABLE_STORY)->set('path')->eq(",{$storyID},")->where('id')->eq($storyID)->exec();
+        }
+
         $this->dao->update(TABLE_PROJECTSTORY)->set('product')->eq($productID)->where('story')->eq($storyID)->exec();
         $storyProjects  = $this->dao->select('project')->from(TABLE_PROJECTSTORY)->where('story')->eq($storyID)->orderBy('project')->fetchPairs('project', 'project');
         $linkedProjects = $this->dao->select('project')->from(TABLE_PROJECTPRODUCT)->where('project')->in($storyProjects)->andWhere('product')->eq($productID)->orderBy('project')->fetchPairs('project','project');
@@ -906,11 +959,7 @@ class storyModel extends model
         if($parentID <= 0) return true;
 
         $childrenStatus = $this->dao->select('id,status')->from(TABLE_STORY)->where('parent')->eq($parentID)->andWhere('deleted')->eq(0)->fetchPairs('status', 'status');
-        if(empty($childrenStatus))
-        {
-            $this->dao->update(TABLE_STORY)->set('parent')->eq('0')->where('id')->eq($parentID)->exec();
-            return true;
-        }
+        if(empty($childrenStatus)) return true;
 
         $oldParentStory = $this->dao->select('*')->from(TABLE_STORY)->where('id')->eq($parentID)->andWhere('deleted')->eq(0)->fetch();
         if(empty($oldParentStory))
@@ -918,12 +967,13 @@ class storyModel extends model
             $this->dao->update(TABLE_STORY)->set('parent')->eq('0')->where('id')->eq($storyID)->exec();
             return true;
         }
-        if($oldParentStory->parent != '-1') $this->dao->update(TABLE_STORY)->set('parent')->eq('-1')->where('id')->eq($parentID)->exec();
         $this->computeEstimate($parentID);
 
+        if(isset($oldParentStory->type) && $childStory->type != $oldParentStory->type) return false;
+
         $status = $oldParentStory->status;
         if(count($childrenStatus) == 1 and current($childrenStatus) == 'closed') $status = current($childrenStatus); // Close parent story.
-        if($oldParentStory->status == 'closed') $status = $this->getActivateStatus($parentID); // Activate parent story.
+        if($oldParentStory->status == 'closed' && $childStory->status == 'active') $status = $this->getActivateStatus($parentID); // Activate parent story.
 
         $action    = '';
         $preStatus = '';
@@ -958,35 +1008,11 @@ class storyModel extends model
             $actionID = $this->loadModel('action')->create('story', $parentID, $action, '', $preStatus, '', false);
             $this->action->logHistory($actionID, $changes);
         }
+
+        if($newParentStory->parent) return $this->updateParentStatus($parentID, $newParentStory->parent, true);
         return true;
     }
 
-    /**
-     * 如果软件需求变更了，则更新软件需求和用户需求关系表中的版本。
-     * If the story changed, update the version filed of the requirement in relation table.
-     *
-     * @param  object $story
-     * @access public
-     * @return void
-     */
-    public function updateStoryVersion(object $story): void
-    {
-        $changedStories = $this->getChangedStories($story);
-        if(empty($changedStories)) return;
-
-        foreach($changedStories as $changedStory)
-        {
-            $this->dao->update(TABLE_RELATION)
-                ->set('AVersion')->eq($changedStory->version)
-                ->where('AType')->eq('requirement')
-                ->andWhere('BType')->eq('story')
-                ->andWhere('relation')->eq('subdivideinto')
-                ->andWhere('AID')->eq($changedStory->id)
-                ->andWhere('BID')->eq($story->id)
-                ->exec();
-        }
-    }
-
     /**
      * Update the story order of plan.
      *
@@ -1063,8 +1089,22 @@ class storyModel extends model
             $oldStory = $oldStories[$storyID];
             if($story->plan != $oldStory->plan)
             {
-                if(!empty($oldStory->plan)) $unlinkPlans[$oldStory->plan] = empty($unlinkPlans[$oldStory->plan]) ? $storyID : "{$unlinkPlans[$oldStory->plan]},{$storyID}";
-                if(!empty($story->plan))    $link2Plans[$story->plan]     = empty($link2Plans[$story->plan])     ? $storyID : "{$link2Plans[$story->plan]},{$storyID}";
+                if(!empty($oldStory->plan))
+                {
+                    foreach(explode(',', (string)$oldStory->plan) as $planID)
+                    {
+                        if(!$planID) continue;
+                        $unlinkPlans[$planID] = empty($unlinkPlans[$planID]) ? $storyID : "{$unlinkPlans[$planID]},$storyID";
+                    }
+                }
+                if(!empty($story->plan))
+                {
+                    foreach(explode(',', (string)$story->plan) as $planID)
+                    {
+                        if(!$planID) continue;
+                        $link2Plans[$planID] = empty($link2Plans[$planID]) ? $storyID : "{$link2Plans[$planID]},$storyID";
+                    }
+                }
             }
         }
 
@@ -1083,7 +1123,8 @@ class storyModel extends model
             if(dao::isError()) return false;
 
             /* Update story sort of plan when story plan has changed. */
-            if($oldStory->plan != $story->plan) $this->updateStoryOrderOfPlan($storyID, $story->plan, $oldStory->plan);
+            if($oldStory->plan != $story->plan) $this->updateStoryOrderOfPlan($storyID, (string)$story->plan, $oldStory->plan);
+            if($oldStory->parent > 0) $this->updateParentStatus($storyID, $oldStory->parent);
 
             $this->executeHooks($storyID);
             if($oldStory->type == 'story' && $story->stage != $oldStory->stage) $this->batchChangeStage(array($storyID), $story->stage);
@@ -1104,8 +1145,8 @@ class storyModel extends model
         }
 
         $this->loadModel('score')->create('ajax', 'batchEdit');
-        foreach($unlinkPlans as $planID => $stories) $this->action->create('productplan', $planID, 'unlinkstory', '', $stories);
-        foreach($link2Plans as $planID => $stories)  $this->action->create('productplan', $planID, 'linkstory', '', $stories);
+        foreach($unlinkPlans as $planID => $stories) $this->action->create('productplan', (int)$planID, 'unlinkstory', '', $stories);
+        foreach($link2Plans as $planID => $stories)  $this->action->create('productplan', (int)$planID, 'linkstory', '', $stories);
 
         return true;
     }
@@ -1157,13 +1198,6 @@ class storyModel extends model
             if($actionID) $this->action->logHistory($actionID, $changes);
         }
 
-        if($story->result == 'pass' && $oldStory->type == 'requirement')
-        {
-            /* IF is requirement changed, notify its relation. */
-            $relations = $this->storyTao->getRelation($storyID, 'requirement');
-            $this->dao->update(TABLE_STORY)->set('URChanged')->eq(1)->where('id')->in($relations)->exec();
-        }
-
         if(!empty($oldStory->twins)) $this->syncTwins($oldStory->id, $oldStory->twins, $changes, 'Reviewed');
 
         return true;
@@ -1315,13 +1349,6 @@ class storyModel extends model
         $this->dao->delete()->from(TABLE_STORYSPEC)->where('story')->in($twinsIdList)->andWHere('version')->eq($oldStory->version)->exec();
         $this->dao->delete()->from(TABLE_STORYREVIEW)->where('story')->in($twinsIdList)->andWhere('version')->eq($oldStory->version)->exec();
 
-        /* If is requirement recall change, revert its relation. */
-        if($oldStory->type == 'requirement')
-        {
-            $relations = $this->storyTao->getRelation($storyID, 'requirement');
-            $this->dao->update(TABLE_STORY)->set('URChanged')->eq(0)->where('id')->in($relations)->exec();
-        }
-
         $changes = common::createChanges($oldStory, $story);
         if(!empty($oldStory->twins)) $this->syncTwins($storyID, $oldStory->twins, $changes, 'recalledChange');
     }
@@ -1374,28 +1401,30 @@ class storyModel extends model
     {
         $now      = helper::now();
         $oldStory = $this->dao->findById($storyID)->from(TABLE_STORY)->fetch();
-        /* 如果该需求是用户需求，则为细分操作，记录用户需求和软件需求的关联关系。 */
-        if($oldStory->type == 'requirement')
-        {
-            foreach($SRList as $SRID) $this->storyTao->doCreateURRelations($SRID, array($storyID));
-            return;
-        }
 
-        /* 如果该需求是软件需求，则为分解子需求操作。 */
         /* Set parent to child story. */
-        $this->dao->update(TABLE_STORY)->set('parent')->eq($storyID)->where('id')->in($SRList)->exec();
+        foreach($SRList as $childStoryID)
+        {
+            $path = rtrim($oldStory->path, ',') . ",$childStoryID,";
+            $this->dao->update(TABLE_STORY)
+                 ->set('parent')->eq($storyID)
+                 ->set('parentVersion')->eq($oldStory->version)
+                 ->set('root')->eq($oldStory->root)
+                 ->set('path')->eq($path)
+                 ->where('id')->eq($childStoryID)
+                 ->exec();
+        }
         $this->computeEstimate($storyID);
 
         /* Set childStories. */
-        $childStories = implode(',', $SRList);
         $newStory     = new stdClass();
-        $newStory->parent         = '-1';
+        $newStory->isParent       = '1';
         $newStory->plan           = '';
         $newStory->lastEditedBy   = $this->app->user->account;
         $newStory->lastEditedDate = $now;
-        $newStory->childStories   = trim($oldStory->childStories . ',' . $childStories, ',');
         $this->dao->update(TABLE_STORY)->data($newStory)->autoCheck()->where('id')->eq($storyID)->exec();
 
+        $childStories = implode(',', $SRList);
         $actionID = $this->loadModel('action')->create('story', $storyID, 'createChildrenStory', '', $childStories);
         $this->action->logHistory($actionID, common::createChanges($oldStory, $newStory));
     }
@@ -1404,8 +1433,8 @@ class storyModel extends model
      * 关闭需求。
      * Close the story.
      *
-     * @param  int    $storyID
-     * @param  object $postData
+     * @param  int         $storyID
+     * @param  object      $postData
      * @access public
      * @return array|false
      */
@@ -1430,12 +1459,12 @@ class storyModel extends model
             return false;
         }
 
-        if(strpos($this->config->story->close->requiredFields, 'comment') !== false and !$this->post->comment) dao::$errors['comment'][] = sprintf($this->lang->error->notempty, $this->lang->comment);
+        if(strpos($this->config->{$oldStory->type}->close->requiredFields, 'comment') !== false and !$this->post->comment) dao::$errors['comment'][] = sprintf($this->lang->error->notempty, $this->lang->comment);
 
         $this->lang->story->comment = $this->lang->comment;
         $this->dao->update(TABLE_STORY)->data($story, 'comment,closeSync')
             ->autoCheck()
-            ->batchCheck($this->config->story->close->requiredFields, 'notempty')
+            ->batchCheck($this->config->{$oldStory->type}->close->requiredFields, 'notempty')
             ->checkIF($story->closedReason == 'duplicate', 'duplicateStory', 'notempty')
             ->checkFlow()
             ->where('id')->eq($storyID)
@@ -1443,11 +1472,7 @@ class storyModel extends model
         if(dao::isError()) return false;
 
         /* Update parent story status and stage. */
-        if($oldStory->parent > 0)
-        {
-            $this->updateParentStatus($storyID, $oldStory->parent);
-            $this->setStage($oldStory->parent);
-        }
+        if($oldStory->parent > 0) $this->updateParentStatus($storyID, $oldStory->parent);
         if(!dao::isError())
         {
             $this->setStage($storyID);
@@ -1484,6 +1509,7 @@ class storyModel extends model
             if(empty($story->closedReason)) continue;
 
             $oldStory = $oldStories[$storyID];
+            if(isset($stories[$oldStory->parent])) continue;
 
             $this->dao->update(TABLE_STORY)->data($story, 'comment')->autoCheck()
                 ->checkIF($story->closedReason == 'duplicate',  'duplicateStory', 'notempty')
@@ -1590,8 +1616,7 @@ class storyModel extends model
             if(empty($oldStory)) continue;
             if($oldStory->branch != BRANCH_MAIN and $plan->branch != BRANCH_MAIN and !in_array($oldStory->branch, explode(',', $plan->branch))) continue;
 
-            /* Ignore parent story, closed story and story linked to this plan already. */
-            if($oldStory->parent < 0) continue;
+            /* Ignore closed story and story linked to this plan already. */
             if($oldStory->status == 'closed') continue;
             if(strpos(",{$oldStory->plan},", ",$planID,") !== false) continue;
 
@@ -1604,21 +1629,28 @@ class storyModel extends model
             if($oldPlanID) $story->plan = trim(str_replace(",$oldPlanID,", ',', ",$oldStory->plan,"), ',');
 
             /* Update the order of the story in the plan. */
-            $this->updateStoryOrderOfPlan((int)$storyID, (string)$planID, $oldStory->plan);
+            $oldStoryPlan = $oldStory->type == 'story' ? $oldStory->plan : '';
+            $this->updateStoryOrderOfPlan((int)$storyID, (string)$planID, $oldStoryPlan);
 
-            /* Replace plan field if product is normal or not linked to plan or story linked to a branch. */
+            /* 用需、业需追加计划，软需替换计划。 */
             $productType = $products[$oldStory->product]->type;
-            if($productType == 'normal') $story->plan = $planID;
-            if(empty($oldPlanID)) $story->plan = $planID;
-            if($oldStory->branch) $story->plan = $planID;
+            if($oldStory->type != 'story')
+            {
+                $story->plan = trim("{$oldStory->plan},{$planID}", ',');
+            }
+            elseif($productType == 'normal' || empty($oldStory->plan) || $oldStory->branch)
+            {
+                $story->plan = $planID;
+            }
 
             /* Change stage. */
             if($planID)
             {
-                if($oldStory->stage == 'wait') $story->stage = 'planned';
+                if($oldStory->stage == 'wait')     $story->stage = 'planned';
+                if($oldStory->stage == 'defining') $story->stage = 'planning';
                 if($productType != 'normal' and $oldStory->branch == 0)
                 {
-                    if(!empty($oldPlanID)) $story->plan = trim("{$story->plan},{$planID}", ',');
+                    if(!empty($oldPlanID) && $oldStory->type == 'story') $story->plan = trim("{$story->plan},{$planID}", ',');
                     foreach(explode(',', $plan->branch) as $planBranch)
                     {
                         if(isset($oldStoryStages[$storyID][$planBranch])) continue;
@@ -1636,25 +1668,124 @@ class storyModel extends model
             /* Update story and recompute stage. */
             $this->dao->update(TABLE_STORY)->data($story)->autoCheck()->where('id')->eq($storyID)->exec();
 
-            if(!$planID) $this->setStage($storyID);
+            if(!$planID) $this->setStage((int)$storyID);
+            if(isset($story->stage) && $story->stage != $oldStory->stage && $oldStory->parent > 0)
+            {
+                $story->parent = $oldStory->parent;
+                $this->storyTao->computeParentStage($story);
+            }
             if(!dao::isError())
             {
                 $allChanges[$storyID] = common::createChanges($oldStory, $story);
-                if($story->plan != $oldStory->plan and !empty($oldStory->plan) and strpos((string)$oldStory->plan, ',') === false) $unlinkPlans[$oldStory->plan] = empty($unlinkPlans[$oldStory->plan]) ? $storyID : "{$unlinkPlans[$oldStory->plan]},$storyID";
-                if($story->plan != $oldStory->plan and !empty($story->plan)    and strpos((string)$story->plan, ',') === false)    $link2Plans[$story->plan]     = empty($link2Plans[$story->plan])     ? $storyID : "{$link2Plans[$story->plan]},$storyID";
+                if($story->plan != $oldStory->plan and !empty($oldStory->plan) and $oldStory->type == 'story')
+                {
+                    foreach(explode(',', (string)$oldStory->plan) as $planID)
+                    {
+                        if(!$planID) continue;
+                        $unlinkPlans[$planID] = empty($unlinkPlans[$planID]) ? $storyID : "{$unlinkPlans[$planID]},$storyID";
+                    }
+                }
+                if($story->plan != $oldStory->plan and !empty($story->plan))
+                {
+                    foreach(explode(',', (string)$story->plan) as $planID)
+                    {
+                        if(!$planID) continue;
+                        $link2Plans[$planID] = empty($link2Plans[$planID]) ? $storyID : "{$link2Plans[$planID]},$storyID";
+                    }
+                }
             }
         }
 
         if(!dao::isError())
         {
             $this->loadModel('action');
-            foreach($unlinkPlans as $planID => $stories) $this->action->create('productplan', $planID, 'unlinkstory', '', $stories);
-            foreach($link2Plans  as $planID => $stories) $this->action->create('productplan', $planID, 'linkstory', '', $stories);
+            foreach($unlinkPlans as $planID => $stories) $this->action->create('productplan', (int)$planID, 'unlinkstory', '', $stories);
+            foreach($link2Plans  as $planID => $stories) $this->action->create('productplan', (int)$planID, 'linkstory', '', $stories);
         }
 
         return $allChanges;
     }
 
+    /**
+     * 批量修改需求的父需求。
+     * Batch change the parent of story.
+     *
+     * @param  string $storyIdList
+     * @param  int    $parentID
+     * @param  string $storyType
+     * @access public
+     * @return bool|string
+     */
+    public function batchChangeParent(string $storyIdList, int $parentID, string $storyType = 'story')
+    {
+        if(empty($storyIdList)) return;
+
+        $stories    = $this->getByList($storyIdList);
+        $parent     = $this->fetchById($parentID);
+        $gradePairs = $this->getGradePairs($storyType);
+        $gradePairs = array_keys($gradePairs);
+
+        $gradeErrorStories  = array();
+        $parentErrorStories = array();
+
+        $this->loadModel('action');
+        foreach($stories as $storyID => $story)
+        {
+            if($story->parent == $parentID) continue;
+            if($story->id == $parentID)
+            {
+                $parentErrorStories[] = '#' . $storyID;
+                continue;
+            }
+            if($parent && $story->root == $parent->root && $story->type == $parent->type && $story->grade < $parent->grade)
+            {
+                $parentErrorStories[] = '#' . $storyID;
+                continue;
+            }
+
+            $oldStory = clone $story;
+            if($parent && $parent->type == $story->type)
+            {
+                $parentGradeIndex = array_search($parent->grade, $gradePairs);
+                $story->grade     = $gradePairs[$parentGradeIndex + 1];
+            }
+            else
+            {
+                $story->grade = current($gradePairs);
+            }
+
+            if($story->grade > $oldStory->grade)
+            {
+                if(!$this->checkGrade($story, $oldStory, 'batch'))
+                {
+                    $gradeErrorStories[] = '#' . $storyID;
+                    continue;
+                }
+            }
+
+            if($story->grade != $oldStory->grade) $this->syncGrade($oldStory, $story);
+
+            $this->dao->update(TABLE_STORY)
+                 ->set('grade')->eq($story->grade)
+                 ->set('parent')->eq($parentID)
+                 ->autoCheck()
+                 ->where('id')->eq($story->id)
+                 ->exec();
+
+            $this->action->create('story', $story->id, 'syncGrade', '', $story->grade);
+
+            $story->parent = $parentID;
+            $this->doChangeParent($story->id, $story, $oldStory);
+            $this->setStage($story->id);
+        }
+
+        $notice = '';
+        if($gradeErrorStories)  $notice = sprintf($this->lang->story->batchGradeOverflow, implode(',', $gradeErrorStories));
+        if($parentErrorStories) $notice = sprintf($this->lang->story->batchParentError, implode(',', $parentErrorStories));
+
+        return $notice;
+    }
+
     /**
      * Batch change branch.
      *
@@ -1716,6 +1847,82 @@ class storyModel extends model
         return $allChanges;
     }
 
+    /**
+     * Batch change the grade of story.
+     *
+     * @param array        $storyIdList
+     * @param int          $grade
+     *
+     * @access public
+     * @return string|null
+     */
+    public function batchChangeGrade(array $storyIdList, int $grade): string|null
+    {
+        $now           = helper::now();
+        $account       = $this->app->user->account;
+        $oldStories    = $this->getByList($storyIdList);
+        $this->loadModel('action');
+
+        $rootGroup    = array();
+        $parentIdList = array();
+        foreach($oldStories as $oldStory)
+        {
+            $rootGroup[$oldStory->root] = isset($rootGroup[$oldStory->root]) ? $rootGroup[$oldStory->root] + 1 : 1;
+            if($oldStory->parent > 0) $parentIdList[] = $oldStory->parent;
+        }
+
+        $parents = $this->dao->select('id, grade, type')->from(TABLE_STORY)->where('id')->in($parentIdList)->fetchAll('id');
+
+        $sameRootList      = '';
+        $gradeGtParentList = '';
+        $gradeOverflowList = '';
+        foreach($storyIdList as $storyID)
+        {
+            $oldStory = $oldStories[$storyID];
+            if($grade == $oldStory->grade) continue;
+
+            if($rootGroup[$oldStory->root] > 1)
+            {
+                $sameRootList .= "#{$storyID} ";
+                continue;
+            }
+
+            if($oldStory->parent > 0 && $grade < $parents[$oldStory->parent]->grade && $oldStory->type == $parents[$oldStory->parent]->type)
+            {
+                $gradeGtParentList .= "#{$storyID} ";
+                continue;
+            }
+
+            $story = new stdclass();
+            $story->lastEditedBy   = $account;
+            $story->lastEditedDate = $now;
+            $story->grade          = $grade;
+
+            if($story->grade > $oldStory->grade)
+            {
+                if(!$this->checkGrade($story, $oldStory))
+                {
+                    $gradeOverflowList .= "#{$storyID} ";
+                    continue;
+                }
+            }
+
+            if($story->grade != $oldStory->grade) $this->syncGrade($oldStory, $story);
+            $this->dao->update(TABLE_STORY)->data($story)->autoCheck()->where('id')->eq((int)$storyID)->exec();
+            if(!dao::isError())
+            {
+                $changes  = common::createChanges($oldStory, $story);
+                $actionID = $this->action->create('story', (int)$storyID, 'Edited');
+                $this->action->logHistory($actionID, $changes);
+            }
+        }
+
+        if($gradeOverflowList) return sprintf($this->lang->story->batchGradeOverflow, $gradeOverflowList);
+        if($sameRootList)      return sprintf($this->lang->story->batchGradeSameRoot, $sameRootList);
+        if($gradeGtParentList) return sprintf($this->lang->story->batchGradeGtParent, $gradeGtParentList);
+        return null;
+    }
+
     /**
      * Batch change the stage of story.
      *
@@ -1735,6 +1942,8 @@ class storyModel extends model
         foreach($storyIdList as $storyID)
         {
             $oldStory = $oldStories[$storyID];
+            if($oldStory->type != 'story' || $oldStory->isParent == '1') continue;
+
             if($oldStory->status == 'draft' or $oldStory->status == 'closed')
             {
                 $ignoreStories .= "#{$storyID} ";
@@ -1920,9 +2129,29 @@ class storyModel extends model
      */
     public function setStage(int $storyID): bool
     {
-        $story  = $this->dao->findById($storyID)->from(TABLE_STORY)->fetch();
+        $story = $this->dao->findById($storyID)->from(TABLE_STORY)->fetch();
         if(empty($story)) return false;
 
+        /* 父需求主动关联计划、项目的情况。 */
+        if($story->type != 'story' || $story->isParent == '1')
+        {
+            list($linkedBranches, $linkedProjects) = $this->storyTao->getLinkedBranchesAndProjects($storyID);
+            if($story->stage == 'defining')
+            {
+                if(!empty($linkedProjects) || !empty($story->plan)) $this->dao->update(TABLE_STORY)->set('stage')->eq('planning')->where('id')->eq($storyID)->exec();
+            }
+            elseif($story->stage == 'planning')
+            {
+                $child = $this->dao->select('id')->from(TABLE_STORY)->where('parent')->eq($storyID)->andWhere('deleted')->eq('0')->fetch('id');
+                if(empty($linkedBranches) && empty($story->plan) && empty($child)) $this->dao->update(TABLE_STORY)->set('stage')->eq('defining')->where('id')->eq($storyID)->exec();
+            }
+            elseif($story->stage == 'closed')
+            {
+                return $this->storyTao->setStageToClosed($storyID, $linkedBranches, $linkedProjects);
+            }
+            return false;
+        }
+
         /* 获取已经存在的分支阶段. */
         $oldStages = $this->dao->select('*')->from(TABLE_STORYSTAGE)->where('story')->eq($storyID)->fetchAll('branch');
         $this->dao->delete()->from(TABLE_STORYSTAGE)->where('story')->eq($storyID)->exec();
@@ -1959,47 +2188,24 @@ class storyModel extends model
      * Get the stories to link.
      *
      * @param  int     $storyID
-     * @param  string  $type           linkStories|linkRelateSR|linkRelateUR
-     * @param  string  $browseType     bySearch
+     * @param  string  $browseType bySearch
      * @param  int     $queryID
-     * @param  string  $storyType      story|requirement
      * @param  object  $pager
-     * @param  string  $excludeStories
      * @access public
      * @return array
      */
-    public function getStories2Link(int $storyID, string $type = 'linkStories', string $browseType = 'bySearch', int $queryID = 0, string $storyType = 'story', object $pager = null, string $excludeStories = ''): array
+    public function getStories2Link(int $storyID, string $browseType = 'bySearch', int $queryID = 0, object $pager = null): array
     {
-        $story         = $this->getById($storyID);
-        $tmpStoryType  = $storyType == 'story' ? 'requirement' : 'story';
-        $stories2Link  = array();
-        if($type == 'linkRelateSR' or $type == 'linkRelateUR')
-        {
-            $tmpStoryType   = $story->type;
-            $linkStoryField = $story->type == 'story' ? 'linkStories' : 'linkRequirements';
-            $storyIDList    = $story->id . ',' . $excludeStories . ',' . $story->{$linkStoryField};
-        }
-        else
-        {
-            $storyIDList = $this->storyTao->getRelation($storyID, $story->type);
-        }
+        $story    = $this->getById($storyID);
+        $excludes = $this->storyTao->getRelation($storyID, $story->type);
 
+        /* 自身不能关联自身。 */
+        $excludes[$storyID] = $storyID;
+
+        $stories2Link = array();
         if($browseType == 'bySearch')
         {
-            $stories2Link = $this->getBySearch($story->product, $story->branch, $queryID, 'id_desc', 0, $tmpStoryType, $storyIDList, '', $pager);
-        }
-        elseif($type != 'linkRelateSR' and $type != 'linkRelateUR')
-        {
-            $status = $storyType == 'story' ? 'active' : 'all';
-            $stories2Link = $this->getProductStories($story->product, $story->branch, '', $status, $tmpStoryType, 'id_desc', true, $storyIDList, $pager);
-        }
-
-        if($type != 'linkRelateSR' and $type != 'linkRelateUR')
-        {
-            foreach($stories2Link as $id => $story)
-            {
-                if($storyType == 'story' and $story->status != 'active') unset($stories2Link[$id]);
-            }
+            $stories2Link = $this->getBySearch($story->product, $story->branch, $queryID, 'id_desc', 0, 'all', $excludes, '', $pager);
         }
 
         return $stories2Link;
@@ -2024,17 +2230,25 @@ class storyModel extends model
     public function getProductStories(string|int $productID = 0, array|string|int $branch = 0, array|string $moduleIdList = '', array|string $status = 'all', string $type = 'story', string $orderBy = 'id_desc', bool $hasParent = true, array|string $excludeStories = '', object|null $pager = null): array
     {
         if(commonModel::isTutorialMode()) return $this->loadModel('tutorial')->getStories();
+        $showGrades = isset($this->config->{$type}->showGrades) ? $this->config->{$type}->showGrades : null;
+        if($showGrades)
+        {
+            $pattern = "/{$type}(\d+)/";
+            preg_match_all($pattern, $showGrades, $matches);
+            $showGrades = isset($matches[1]) ? $matches[1] : null;
+        }
 
         $productQuery = $this->storyTao->buildProductsCondition($productID, $branch);
         $stories      = $this->dao->select("*, IF(`pri` = 0, {$this->config->maxPriValue}, `pri`) as priOrder")->from(TABLE_STORY)
             ->where('deleted')->eq(0)
             ->andWhere($productQuery)
-            ->beginIF(!$hasParent)->andWhere("parent")->ge(0)->fi()
+            ->beginIF(!$hasParent)->andWhere("isParent")->eq('0')->fi()
             ->beginIF(!empty($moduleIdList))->andWhere('module')->in($moduleIdList)->fi()
             ->beginIF(!empty($excludeStories))->andWhere('id')->notIN($excludeStories)->fi()
             ->beginIF($status and $status != 'all')->andWhere('status')->in($status)->fi()
             ->andWhere("FIND_IN_SET('{$this->config->vision}', vision)")
-            ->andWhere('type')->eq($type)
+            ->beginIF($type != 'all')->andWhere('type')->in($type)->fi()
+            ->beginIF($showGrades)->andWhere('grade')->in($showGrades)->fi()
             ->orderBy($orderBy)
             ->page($pager)
             ->fetchAll('id');
@@ -2060,15 +2274,17 @@ class storyModel extends model
      */
     public function getProductStoryPairs(int|array $productIdList = 0, string|int $branch = 'all', array|string|int $moduleIdList = '', string|array $status = 'all', string $order = 'id_desc', int $limit = 0, string $type = 'full', string $storyType = 'story', bool|string $hasParent = true): array
     {
+        if($hasParent === 'false') $hasParent = false;
+
         $stories = $this->dao->select('t1.id, t1.title, t1.module, t1.pri, t1.estimate, t2.name AS product')
             ->from(TABLE_STORY)->alias('t1')->leftJoin(TABLE_PRODUCT)->alias('t2')->on('t1.product = t2.id')
             ->where('1=1')
             ->beginIF($productIdList)->andWhere('t1.product')->in($productIdList)->fi()
             ->beginIF($moduleIdList)->andWhere('t1.module')->in($moduleIdList)->fi()
             ->beginIF($branch !== 'all')->andWhere('t1.branch')->in("0,$branch")->fi()
-            ->beginIF(!$hasParent or $hasParent == 'false')->andWhere('t1.parent')->ge(0)->fi()
+            ->beginIF(!$hasParent)->andWhere('t1.isParent')->eq('0')->fi()
             ->beginIF($status and $status != 'all')->andWhere('t1.status')->in($status)->fi()
-            ->beginIF($type != 'full' || $type != 'all')->andWhere('t1.type')->eq($storyType)->fi()
+            ->beginIF($type != 'full' && $type != 'all')->andWhere('t1.type')->eq($storyType)->fi()
             ->andWhere("FIND_IN_SET('{$this->config->vision}', t1.vision)")
             ->andWhere('t1.deleted')->eq('0')
             ->orderBy($order)
@@ -2078,6 +2294,34 @@ class storyModel extends model
         return $this->formatStories($stories, $type, $limit);
     }
 
+    /**
+     * 获取需求的所有子需求ID。
+     * Get all child stories of a story.
+     *
+     * @param  int    $storyID
+     * @param  bool   $includeSelf
+     * @param  bool   $sameType true|false
+     * @access public
+     * @return array
+     */
+    public function getAllChildId(int $storyID, bool $includeSelf = true, bool $sameType = false): array
+    {
+        if($storyID == 0) return array();
+
+        $story = $this->fetchByID($storyID);
+        if(empty($story)) return array();
+
+        $children = $this->dao->select('id')->from(TABLE_STORY)
+            ->where('path')->like($story->path . '%')
+            ->andWhere('deleted')->eq(0)
+            ->beginIF(!$includeSelf)->andWhere('id')->ne($storyID)->fi()
+            ->beginIF($sameType)->andWhere('type')->eq($story->type)->fi()
+            ->fetchPairs();
+
+        return array_keys($children);
+    }
+
+
     /**
      * Get stories by assignedTo.
      *
@@ -2229,10 +2473,10 @@ class storyModel extends model
      * @param  string|array $modules
      * @param  string       $fieldName
      * @param  string       $fieldValue
-     * @param  string       $type         requirement|story
+     * @param  string       $type       requirement|story
      * @param  string       $orderBy
      * @param  object       $pager
-     * @param  string       $operator     equal|include
+     * @param  string       $operator   equal|include
      * @access public
      * @return array
      */
@@ -2246,10 +2490,19 @@ class storyModel extends model
         $sql = $this->dao->select("t1.*, IF(t1.`pri` = 0, {$this->config->maxPriValue}, t1.`pri`) as priOrder")->from(TABLE_STORY)->alias('t1');
         if($fieldName == 'reviewBy') $sql = $sql->leftJoin(TABLE_STORYREVIEW)->alias('t2')->on('t1.id = t2.story and t1.version = t2.version');
 
+        $showGrades = isset($this->config->{$type}->showGrades) ? $this->config->{$type}->showGrades : null;
+        if($showGrades)
+        {
+            $pattern = "/{$type}(\d+)/";
+            preg_match_all($pattern, $showGrades, $matches);
+            $showGrades = isset($matches[1]) ? $matches[1] : null;
+        }
+
         $stories = $sql->where('t1.product')->in($productID)
             ->andWhere('t1.deleted')->eq(0)
             ->andWhere("FIND_IN_SET('{$this->config->vision}', t1.vision)")
             ->andWhere('t1.type')->eq($type)
+            ->beginIF($showGrades)->andWhere('t1.grade')->in($showGrades)->fi()
             ->beginIF($branch != 'all')->andWhere("t1.branch")->eq($branch)->fi()
             ->beginIF($modules)->andWhere("t1.module")->in($modules)->fi()
             ->beginIF($operator == 'equal' and $fieldName != 'reviewBy' and $fieldName != 'assignedBy')->andWhere('t1.' . $fieldName)->eq($fieldValue)->fi()
@@ -2280,9 +2533,18 @@ class storyModel extends model
      */
     public function get2BeClosed(int $productID, int|string $branch, string|array $modules, string $type = 'story', string $orderBy = '', object|null $pager = null): array
     {
+        $showGrades = isset($this->config->{$type}->showGrades) ? $this->config->{$type}->showGrades : null;
+        if($showGrades)
+        {
+            $pattern = "/{$type}(\d+)/";
+            preg_match_all($pattern, $showGrades, $matches);
+            $showGrades = isset($matches[1]) ? $matches[1] : null;
+        }
+
         $stories = $this->dao->select("*,IF(`pri` = 0, {$this->config->maxPriValue}, `pri`) as priOrder")->from(TABLE_STORY)
             ->where('product')->in($productID)
             ->andWhere('type')->eq($type)
+            ->beginIF($showGrades)->andWhere('grade')->in($showGrades)->fi()
             ->beginIF($branch and $branch != 'all')->andWhere("branch")->eq($branch)->fi()
             ->beginIF($modules)->andWhere("module")->in($modules)->fi()
             ->andWhere('deleted')->eq(0)
@@ -2404,6 +2666,7 @@ class storyModel extends model
             if($branch and strpos($storyQuery, '`branch` =') === false) $storyQuery .= " AND `branch` " . helper::dbIN((string)$branch);
         }
         $storyQuery = preg_replace("/`plan` +LIKE +'%([0-9]+)%'/i", "CONCAT(',', `plan`, ',') LIKE '%,$1,%'", $storyQuery);
+        $storyQuery = preg_replace_callback("/AND `grade` (=|!=) '(\w+)(\d+)'/", function($matches){return "AND `grade` {$matches[1]} '" . $matches[3] . "' AND `type` = '" . $matches[2] . "'";}, $storyQuery);
 
         return $this->getBySQL($queryProductID, $storyQuery, $orderBy, $pager, $type);
     }
@@ -2441,6 +2704,14 @@ class storyModel extends model
             }
         }
 
+        $showGrades = isset($this->config->{$type}->showGrades) ? $this->config->{$type}->showGrades : null;
+        if($showGrades)
+        {
+            $pattern = "/{$type}(\d+)/";
+            preg_match_all($pattern, $showGrades, $matches);
+            $showGrades = isset($matches[1]) ? $matches[1] : null;
+        }
+
         $tmpStories = $this->dao->select("DISTINCT t1.*, IF(t1.`pri` = 0, {$this->config->maxPriValue}, t1.`pri`) as priOrder")->from(TABLE_STORY)->alias('t1')
             ->leftJoin(TABLE_PROJECTSTORY)->alias('t2')->on('t1.id=t2.story')
             ->beginIF(strpos($sql, 'result') !== false)->leftJoin(TABLE_STORYREVIEW)->alias('t3')->on('t1.id = t3.story and t1.version = t3.version')->fi()
@@ -2448,7 +2719,8 @@ class storyModel extends model
             ->beginIF($productID != 'all' && $productID != '' && $productID != 0)->andWhere('t1.`product`')->eq((int)$productID)->fi()
             ->andWhere('t1.deleted')->eq(0)
             ->andWhere("FIND_IN_SET('{$this->config->vision}', t1.vision)")
-            ->andWhere('t1.type')->eq($type)
+            ->beginIF($type != 'all')->andWhere('t1.type')->in($type)->fi()
+            ->beginIF($showGrades)->andWhere('t1.grade')->in($showGrades)->fi()
             ->orderBy($orderBy)
             ->page($pager, 't1.id')
             ->fetchAll('id');
@@ -2473,46 +2745,155 @@ class storyModel extends model
      *
      * @param  int        $productID
      * @param  string|int $appendedStories
+     * @param  string     $storyType
+     * @param  int        $storyID
      * @access public
      * @return array
      */
-    public function getParentStoryPairs(int $productID, string|int $appendedStories = ''): array
+    public function getParentStoryPairs(int $productID, string|int $appendedStories = '', string $storyType = 'story', int $storyID = 0): array
     {
-        $stories = $this->dao->select('id, title')->from(TABLE_STORY)
-            ->where('deleted')->eq('0')
-            ->andWhere('product')->eq($productID)
-            ->andWhere('parent')->le(0)
-            ->andWhere('type')->eq('story')
-            ->andWhere('stage')->eq('wait')
-            ->andWhere('status')->eq('active')
-            ->andWhere('plan')->in('0,')
-            ->andWhere('twins')->eq('')
-            ->beginIF(!empty($appendedStories))->orWhere('id')->in($appendedStories)->fi()
-            ->fetchPairs();
-        return array(0 => '') + $stories;
+        if($storyType == 'story')
+        {
+            $maxGradeGroup = $this->getMaxGradeGroup();
+            $lastGrade     = $this->dao->select('grade')->from(TABLE_STORYGRADE)->where('type')->eq($storyType)->andWhere('status')->eq('enable')->orderBy('grade_desc')->limit(1)->fetch('grade');
+            $SRGradePairs  = $this->getGradePairs('story');
+            $URGradePairs  = $this->getGradePairs('requirement');
+            $requirements  = $this->dao->select('id, parent, grade, title, status')->from(TABLE_STORY)
+                ->where('deleted')->eq('0')
+                ->andWhere('product')->eq($productID)
+                ->andWhere('type')->eq('requirement')
+                ->beginIF($this->config->requirement->gradeRule == 'stepwise')->andWhere('grade')->eq($maxGradeGroup['requirement'])->fi()
+                ->fetchAll('id');
+
+            $parents = array();
+            foreach($requirements as $requirement) $parents[$requirement->parent] = $requirement->parent;
+
+            foreach($requirements as $id => $requirement)
+            {
+                if(isset($parents[$requirement->id])) unset($requirements[$id]);
+                if(!isset($URGradePairs[$requirement->grade])) unset($requirements[$id]);
+                if($requirement->status != 'active' && $requirement->status != 'launched') unset($requirements[$id]);
+            }
+
+            $childIdList = $this->getAllChildId($storyID);
+            $stories = $this->dao->select('id, grade, title')->from(TABLE_STORY)
+                ->where('deleted')->eq('0')
+                ->andWhere('product')->eq($productID)
+                ->andWhere('type')->eq('story')
+                ->andWhere('status')->eq('active')
+                ->andWhere('twins')->eq('')
+                ->andWhere('grade')->ne($lastGrade)
+                ->andWhere('grade')->in(array_keys($SRGradePairs))
+                ->beginIF($childIdList)->andWhere('id')->notIN($childIdList)->fi()
+                ->beginIF(!empty($appendedStories))->orWhere('id')->in($appendedStories)->fi()
+                ->fetchAll('id');
+
+            return array_merge($this->addGradeLabel($requirements), $this->addGradeLabel($stories));
+        }
+        elseif($storyType == 'requirement')
+        {
+            return $this->getRequirementParents($productID, $appendedStories, $storyType, $storyID);
+        }
+        elseif($storyType == 'epic')
+        {
+            return $this->getEpicParents($productID, $appendedStories, $storyType, $storyID);
+        }
     }
 
     /**
-     * 关闭用户需求，如果所有细分的软件需求已被关闭。
-     * Close the parent user requirement if all divided stories has been closed.
+     * 获取用户需求的父需求键值对。
+     * Get requirement parents.
      *
-     * @param  int    $storyID
-     * @param  object $postData
+     * @param  int        $productID
+     * @param  string|int $appendedStories
+     * @param  string     $storyType
+     * @param  int        $storyID
      * @access public
-     * @return void
+     * @return array
      */
-    public function closeParentRequirement(int $storyID, object $postData): void
+    public function getRequirementParents(int $productID, string|int $appendedStories = '', string $storyType = 'requirement', int $storyID = 0): array
     {
-        $parentID = $this->dao->select('BID')->from(TABLE_RELATION)->where('AID')->eq($storyID)->fetch();
-        if(empty($parentID)) return;
+        $maxGradeGroup = $this->getMaxGradeGroup();
+        $lastGrade     = $this->dao->select('grade')->from(TABLE_STORYGRADE)->where('type')->eq($storyType)->andWhere('status')->eq('enable')->orderBy('grade_desc')->limit(1)->fetch('grade');
+        $ERGradePairs  = $this->getGradePairs('epic');
+        $URGradePairs  = $this->getGradePairs('requirement');
 
-        $stories  = $this->dao->select('t2.id, t2.status')->from(TABLE_RELATION)->alias('t1')
-            ->leftJoin(TABLE_STORY)->alias('t2')->on('t2.id=t1.AID')
-            ->where('t1.BType')->eq('requirement')
-            ->andWhere('t2.status')->ne('closed')
-            ->andWhere('t2.type')->eq('story')
+        $epics = $this->dao->select('id, parent, grade, title, status')->from(TABLE_STORY)
+            ->where('deleted')->eq('0')
+            ->andWhere('product')->eq($productID)
+            ->andWhere('type')->eq('epic')
+            ->beginIF($this->config->epic->gradeRule == 'stepwise')->andWhere('grade')->eq($maxGradeGroup['epic'])->fi()
+            ->fetchAll('id');
+
+        $parents = array();
+        foreach($epics as $epic) $parents[$epic->parent] = $epic->parent;
+
+        foreach($epics as $id => $epic)
+        {
+            if(isset($parents[$epic->id])) unset($epics[$id]);
+            if(!isset($ERGradePairs[$epic->grade])) unset($epics[$id]);
+            if($epic->status != 'active') unset($epics[$id]);
+        }
+
+        $childIdList     = $this->getAllChildId($storyID);
+        $allStoryParents = $this->dao->select('parent')->from(TABLE_STORY)
+            ->where('deleted')->eq('0')
+            ->andWhere('product')->eq($productID)
+            ->andWhere('type')->eq('story')
+            ->andWhere('parent')->gt('0')
             ->fetchPairs();
-        if(empty($stories)) $this->close($parentID->BID, $postData);
+
+        $requirements = $this->dao->select('id, parent, grade, title')->from(TABLE_STORY)
+            ->where('deleted')->eq('0')
+            ->andWhere('product')->eq($productID)
+            ->andWhere('type')->eq('requirement')
+            ->andWhere('status')->in('active,launched')
+            ->andWhere('grade')->in(array_keys($URGradePairs))
+            ->andWhere('grade')->ne($lastGrade)
+            ->andWhere('id')->notIN($allStoryParents)
+            ->beginIF($childIdList)->andWhere('id')->notIN($childIdList)->fi()
+            ->beginIF(!empty($appendedStories))->orWhere('id')->in($appendedStories)->fi()
+            ->fetchAll('id');
+
+        return array_merge($this->addGradeLabel($epics), $this->addGradeLabel($requirements));
+    }
+
+    /**
+     * 获取业务需求的父需求键值对。
+     * Get epic parents.
+     *
+     * @param  int        $productID
+     * @param  string|int $appendedStories
+     * @param  string     $storyType
+     * @param  int        $storyID
+     * @access public
+     * @return array
+     */
+    public function getEpicParents(int $productID, string|int $appendedStories = '', string $storyType = 'epic', int $storyID = 0): array
+    {
+        $lastGrade    = $this->dao->select('grade')->from(TABLE_STORYGRADE)->where('type')->eq($storyType)->andWhere('status')->eq('enable')->orderBy('grade_desc')->limit(1)->fetch('grade');
+        $ERGradePairs = $this->getGradePairs('epic');
+        $childIdList  = $this->getAllChildId($storyID);
+
+        $allRequirementParents = $this->dao->select('parent')->from(TABLE_STORY)
+            ->where('deleted')->eq('0')
+            ->andWhere('product')->eq($productID)
+            ->andWhere('type')->eq('requirement')
+            ->andWhere('parent')->gt('0')
+            ->fetchPairs();
+        $epics = $this->dao->select('id, parent, grade, title')->from(TABLE_STORY)
+            ->where('deleted')->eq('0')
+            ->andWhere('product')->eq($productID)
+            ->andWhere('type')->eq('epic')
+            ->andWhere('status')->eq('active')
+            ->andWhere('grade')->in(array_keys($ERGradePairs))
+            ->andWhere('grade')->ne($lastGrade)
+            ->andWhere('id')->notIN($allRequirementParents)
+            ->beginIF($childIdList)->andWhere('id')->notIN($childIdList)->fi()
+            ->beginIF(!empty($appendedStories))->orWhere('id')->in($appendedStories)->fi()
+            ->fetchAll('id');
+
+        return $this->addGradeLabel($epics);
     }
 
     /**
@@ -2681,37 +3062,6 @@ class storyModel extends model
         return $allStories;
     }
 
-    /**
-     * 根据变更了的软件需求查找对应的用户需求。
-     * Get the requirements by the changed stories.
-     *
-     * @param  object $story
-     * @access public
-     * @return array
-     */
-    public function getChangedStories(object $story): array
-    {
-        if($story->type == 'requirement') return array();
-
-        $relations = $this->dao->select('*')->from(TABLE_RELATION)
-            ->where('AType')->eq('requirement')
-            ->andWhere('BType')->eq('story')
-            ->andWhere('relation')->eq('subdivideinto')
-            ->andWhere('BID')->eq($story->id)
-            ->fetchAll('AID');
-
-        if(empty($relations)) return array();
-
-        $stories = $this->getByList(array_keys($relations));
-        foreach($stories as $id => $story)
-        {
-            $version = $relations[$story->id]->AVersion;
-            if($version > $story->version) unset($stories[$id]);
-        }
-
-        return $stories;
-    }
-
     /**
      * Batch get story stage.
      *
@@ -2854,13 +3204,14 @@ class storyModel extends model
      * 获取产品软件需求数量的数据。
      * Get report data of stories per product.
      *
+     * @param  string $storyType
      * @access public
      * @return array
      */
-    public function getDataOfStoriesPerProduct(): array
+    public function getDataOfStoriesPerProduct(string $storyType = 'story'): array
     {
         $datas = $this->dao->select('product as name, count(product) as value')->from(TABLE_STORY)
-            ->where($this->reportCondition())
+            ->where($this->reportCondition($storyType))
             ->groupBy('product')->orderBy('value DESC')
             ->fetchAll('name');
         if(!$datas) return array();
@@ -2873,14 +3224,15 @@ class storyModel extends model
      * 获取按模块软件需求数量的统计数据。
      * Get report data of stories per module.
      *
+     * @param  string $storyType
      * @access public
      * @return array
      */
-    public function getDataOfStoriesPerModule(): array
+    public function getDataOfStoriesPerModule(string $storyType = 'story'): array
     {
         $datas = $this->dao->select('module as name, count(module) as value, product, branch')
             ->from(TABLE_STORY)
-            ->where($this->reportCondition())
+            ->where($this->reportCondition($storyType))
             ->groupBy('module,product,branch')
             ->orderBy('value DESC')
             ->fetchAll('name');
@@ -2914,18 +3266,20 @@ class storyModel extends model
      * 获取按需求来源统计的数据。
      * Get report data of stories per source.
      *
+     * @param  string $storyType
      * @access public
      * @return array
      */
-    public function getDataOfStoriesPerSource(): array
+    public function getDataOfStoriesPerSource(string $storyType = 'story'): array
     {
         $datas = $this->dao->select('source as name, count(source) as value')->from(TABLE_STORY)
-            ->where($this->reportCondition())
+            ->where($this->reportCondition($storyType))
             ->groupBy('source')->orderBy('value DESC')
             ->fetchAll('name');
         if(!$datas) return array();
-        $this->lang->story->sourceList[''] = $this->lang->report->undefined;
-        foreach($datas as $key => $data) $data->name = isset($this->lang->story->sourceList[$key]) ? $this->lang->story->sourceList[$key] : $this->lang->report->undefined;
+
+        $this->lang->{$storyType}->sourceList[''] = $this->lang->report->undefined;
+        foreach($datas as $key => $data) $data->name = isset($this->lang->{$storyType}->sourceList[$key]) ? $this->lang->{$storyType}->sourceList[$key] : $this->lang->report->undefined;
         return $datas;
     }
 
@@ -2933,13 +3287,14 @@ class storyModel extends model
      * 获取按计划进行统计的数据。
      * Get report data of stories per plan.
      *
+     * @param  string $storyType
      * @access public
      * @return array
      */
-    public function getDataOfStoriesPerPlan(): array
+    public function getDataOfStoriesPerPlan(string $storyType = 'story'): array
     {
         $datas = $this->dao->select('plan as name, count(plan) as value')->from(TABLE_STORY)
-            ->where($this->reportCondition())
+            ->where($this->reportCondition($storyType))
             ->groupBy('plan')->orderBy('value DESC')
             ->fetchAll('name');
         if(!$datas) return array();
@@ -2986,17 +3341,19 @@ class storyModel extends model
      * 获取按状态进行统计的数据。
      * Get report data of stories per status.
      *
+     * @param  string $storyType
      * @access public
      * @return array
      */
-    public function getDataOfStoriesPerStatus(): array
+    public function getDataOfStoriesPerStatus(string $storyType = 'story'): array
     {
         $datas = $this->dao->select('status as name, count(status) as value')->from(TABLE_STORY)
-            ->where($this->reportCondition())
+            ->where($this->reportCondition($storyType))
             ->groupBy('status')->orderBy('value DESC')
             ->fetchAll('name');
         if(!$datas) return array();
-        foreach($datas as $status => $data) if(isset($this->lang->story->statusList[$status])) $data->name = $this->lang->story->statusList[$status];
+
+        foreach($datas as $status => $data) if(isset($this->lang->{$storyType}->statusList[$status])) $data->name = $this->lang->{$storyType}->statusList[$status];
         return $datas;
     }
 
@@ -3004,13 +3361,14 @@ class storyModel extends model
      * 获取按所处阶段进行统计的数据。
      * Get report data of stories per stage.
      *
+     * @param  string $storyType
      * @access public
      * @return array
      */
-    public function getDataOfStoriesPerStage(): array
+    public function getDataOfStoriesPerStage(string $storyType = 'story'): array
     {
         $datas = $this->dao->select('stage as name, count(stage) as value')->from(TABLE_STORY)
-            ->where($this->reportCondition())
+            ->where($this->reportCondition($storyType))
             ->groupBy('stage')->orderBy('value DESC')
             ->fetchAll('name');
         if(!$datas) return array();
@@ -3022,20 +3380,22 @@ class storyModel extends model
      * 获取按优先级进行统计的数据。
      * Get report data of stories per pri.
      *
+     * @param  string $storyType
      * @access public
      * @return array
      */
-    public function getDataOfStoriesPerPri(): array
+    public function getDataOfStoriesPerPri(string $storyType = 'story'): array
     {
         $datas = $this->dao->select('pri as name, count(pri) as value')->from(TABLE_STORY)
-            ->where($this->reportCondition())
+            ->where($this->reportCondition($storyType))
             ->groupBy('pri')->orderBy('value DESC')
             ->fetchAll('name');
         if(!$datas) return array();
+
         foreach($datas as $pri => $data)
         {
-            if(isset($this->lang->story->priList[$pri]) && $this->lang->story->priList[$pri] != '')
-                $data->name = $this->lang->story->priList[$pri];
+            if(isset($this->lang->{$storyType}->priList[$pri]) && $this->lang->{$storyType}->priList[$pri] != '')
+                $data->name = $this->lang->{$storyType}->priList[$pri];
             else
                 $data->name = $this->lang->report->undefined;
         }
@@ -3046,13 +3406,14 @@ class storyModel extends model
      * 获取按照预计工时进行统计的数据。
      * Get report data of stories per estimate.
      *
+     * @param  string $storyType
      * @access public
      * @return array
      */
-    public function getDataOfStoriesPerEstimate(): array
+    public function getDataOfStoriesPerEstimate(string $storyType = 'story'): array
     {
         return $this->dao->select('estimate as name, count(estimate) as value')->from(TABLE_STORY)
-            ->where($this->reportCondition())
+            ->where($this->reportCondition($storyType))
             ->groupBy('estimate')->orderBy('value')
             ->fetchAll();
     }
@@ -3061,13 +3422,14 @@ class storyModel extends model
      * 获取按由谁创建来进行统计的数据。
      * Get report data of stories per openedBy.
      *
+     * @param  string $storyType
      * @access public
      * @return array
      */
-    public function getDataOfStoriesPerOpenedBy(): array
+    public function getDataOfStoriesPerOpenedBy(string $storyType = 'story'): array
     {
         $datas = $this->dao->select('openedBy as name, count(openedBy) as value')->from(TABLE_STORY)
-            ->where($this->reportCondition())
+            ->where($this->reportCondition($storyType))
             ->groupBy('openedBy')->orderBy('value DESC')
             ->fetchAll('name');
         if(!$datas) return array();
@@ -3080,13 +3442,14 @@ class storyModel extends model
      * 获取按当前指派给来进行统计的数据。
      * Get report data of stories per assignedTo.
      *
+     * @param  string $storyType
      * @access public
      * @return array
      */
-    public function getDataOfStoriesPerAssignedTo(): array
+    public function getDataOfStoriesPerAssignedTo(string $storyType = 'story'): array
     {
         $datas = $this->dao->select('assignedTo as name, count(assignedTo) as value')->from(TABLE_STORY)
-            ->where($this->reportCondition())
+            ->where($this->reportCondition($storyType))
             ->groupBy('assignedTo')->orderBy('value DESC')
             ->fetchAll('name');
         if(!$datas) return array();
@@ -3099,17 +3462,19 @@ class storyModel extends model
      * 获取按关闭原因来进行统计的数据。
      * Get report data of stories per closedReason.
      *
+     * @param  string $storyType
      * @access public
      * @return array
      */
-    public function getDataOfStoriesPerClosedReason(): array
+    public function getDataOfStoriesPerClosedReason(string $storyType = 'story'): array
     {
         $datas = $this->dao->select('closedReason as name, count(closedReason) as value')->from(TABLE_STORY)
-            ->where($this->reportCondition())
+            ->where($this->reportCondition($storyType))
             ->groupBy('closedReason')->orderBy('value DESC')
             ->fetchAll('name');
         if(!$datas) return array();
-        foreach($datas as $reason => $data) $data->name = $this->lang->story->reasonList[$reason] != '' ? $this->lang->story->reasonList[$reason] : $this->lang->report->undefined;
+
+        foreach($datas as $reason => $data) $data->name = $this->lang->{$storyType}->reasonList[$reason] != '' ? $this->lang->{$storyType}->reasonList[$reason] : $this->lang->report->undefined;
         return $datas;
     }
 
@@ -3117,17 +3482,51 @@ class storyModel extends model
      * 获取按变更次数来进行统计的数据。
      * Get report data of stories per change.
      *
+     * @param  string $storyType
      * @access public
      * @return array
      */
-    public function getDataOfStoriesPerChange(): array
+    public function getDataOfStoriesPerChange(string $storyType = 'story'): array
     {
         return $this->dao->select('(version-1) as name, count(*) as value')->from(TABLE_STORY)
-            ->where($this->reportCondition())
+            ->where($this->reportCondition($storyType))
             ->groupBy('version')->orderBy('value')
             ->fetchAll();
     }
 
+    /**
+     * 获取按需求层级来进行统计的数据。
+     * Get report data of stories per grade.
+     *
+     * @param  string $storyType
+     * @access public
+     * @return array
+     */
+    public function getDataOfStoriesPerGrade(string $storyType = 'story'): array
+    {
+        $datas = $this->dao->select('type, grade as name, count(*) as count')->from(TABLE_STORY)
+            ->where($this->reportCondition($storyType))
+            ->groupBy('type,name')
+            ->fetchGroup('type', 'name');
+
+        $gradeGroup = $this->getGradeGroup();
+        $summary    = array();
+        foreach($datas as $type => $gradeCount)
+        {
+            $gradePairs = zget($gradeGroup, $type, array());
+            foreach($gradeCount as $gradeValue => $count)
+            {
+                $grade = zget($gradePairs, $gradeValue);
+
+                $data = new stdclass();
+                $data->name  = isset($grade->name) ? $grade->name : $this->lang->report->undefined;
+                $data->value = $count->count;
+                $summary[] = $data;
+            }
+        }
+        return $summary;
+    }
+
     /**
      * Get kanban group data.
      *
@@ -3188,7 +3587,7 @@ class storyModel extends model
         $ccList = isset($story->mailto) ? str_replace(' ', '', trim($story->mailto, ',')) : '';
 
         /* If the action is changed or reviewed, mail to the project or execution team. */
-        if(strtolower($actionType) == 'changed' or strtolower($actionType) == 'reviewed')
+        if((strtolower($actionType) == 'changed' or strtolower($actionType) == 'reviewed') && $story->type == 'story')
         {
             $teamMembers = $this->getTeamMembers($story->id, $actionType);
             if($teamMembers)
@@ -3262,7 +3661,7 @@ class storyModel extends model
                 global $dao;
                 $project = $dao->findByID($_SESSION['project'])->from(TABLE_PROJECT)->fetch();
             }
-            return ($app->tab == 'execution' || (!empty($project) && $project->multiple == '0')) && $story->status == 'active' && $story->type == 'story';
+            return ($app->tab == 'execution' || (!empty($project) && $project->multiple == '0')) && $story->status == 'active' && $story->type == 'story' && $story->isParent == '0';
         }
 
         $disabledFeatures = ",{$config->disabledFeatures},";
@@ -3294,25 +3693,22 @@ class storyModel extends model
         if($action == 'batchcreate')
         {
             if($config->vision == 'or') return false;
-            if($config->vision == 'lite' && $story->parent <= 0 && $story->status == 'active' && in_array($story->stage, array('wait', 'projected'))) return true;
+            if(!empty($story->twins))   return false;
+            if(strpos('active,launched', $story->status) === false) return false;
+            if($config->vision == 'lite' && ($story->status == 'active' && in_array($story->stage, array('wait', 'projected')))) return true;
 
-            if($story->parent > 0 || !empty($story->twins)) return false;
-            if($story->type == 'requirement' && strpos('draft,reviewing,changing', $story->status) !== false) return false;
-
-            if(strpos('active,launched,developing', $story->status) === false || !empty($story->plan)) return false;
-            if(isset($shadowProducts[$story->product]) && (!empty($taskGroups[$story->id]) || $story->stage != 'projected')) return false;
-            if(!isset($shadowProducts[$story->product]) && $story->stage != 'wait' && $story->type == 'story') return false;
+            if(isset($shadowProducts[$story->product]) && (!empty($taskGroups[$story->id]))) return false;
+            if(!isset($shadowProducts[$story->product]) && !in_array($story->stage, array('wait', 'planned', 'projected')) && $story->type == 'story' && $story->isParent == '0') return false;
         }
 
         $story->reviewer  = isset($story->reviewer)  ? $story->reviewer  : array();
         $story->notReview = isset($story->notReview) ? $story->notReview : array();
-        $isSuperReviewer = strpos(',' . trim(zget($config->story, 'superReviewers', ''), ',') . ',', ',' . $app->user->account . ',');
+        $storyType        = $app->methodName == 'audit' ? $story->storyType : $story->type;
+        $isSuperReviewer  = isset($config->{$storyType}) ? strpos(',' . trim(zget($config->{$storyType}, 'superReviewers', ''), ',') . ',', ',' . $app->user->account . ',') : false;
 
-        if($action == 'change') return (($isSuperReviewer !== false || count($story->reviewer) == 0 || count($story->notReview) == 0) && in_array($story->status, array('active', 'launched')));
-        if($action == 'review') return (($isSuperReviewer !== false || in_array($app->user->account, $story->notReview)) && $story->status == 'reviewing');
-
-        if($action == 'createbranch')       return $story->type == 'story';
-        if($action == 'processstorychange') return (bool)$story->URChanged;
+        if($action == 'change')       return (($isSuperReviewer !== false or count($story->reviewer) == 0 or count($story->notReview) == 0) and $story->status == 'active');
+        if($action == 'review')       return (($isSuperReviewer !== false or in_array($app->user->account, $story->notReview)) and $story->status == 'reviewing');
+        if($action == 'createbranch') return $story->type == 'story';
 
         return true;
     }
@@ -3386,23 +3782,82 @@ class storyModel extends model
         return $stories;
     }
 
+    /**
+     * 向业务需求和用户需求追加子需求。
+     * Append children to story.
+     *
+     * @param  int          $productID
+     * @param  array        $stories
+     * @param  string       $storyType
+     * @access public
+     * @return array|object
+     */
+    public function appendChildren(int $productID, array $stories, string $storyType): array
+    {
+        $storyGrades       = array();
+        $requirementGrades = array();
+
+        $showGrades = isset($this->config->{$storyType}->showGrades);
+        if($showGrades)
+        {
+            foreach(explode(',', $this->config->{$storyType}->showGrades) as $grade)
+            {
+                if(!$grade) continue;
+                if(strpos($grade, 'requirement') !== false) $requirementGrades[] = str_replace('requirement', '', $grade);
+                if(strpos($grade, 'story') !== false)       $storyGrades[]       = str_replace('story', '', $grade);
+            }
+        }
+
+        $rootIdList = array();
+        foreach($stories as $story) $rootIdList[$story->root] = $story->root;
+        $children = $this->dao->select('*')->from(TABLE_STORY)
+            ->where('root')->in($rootIdList)
+            ->andWhere('product')->eq($productID)
+            ->andWhere('deleted')->eq('0')
+            ->beginIF($storyType == 'requirement')
+            ->andWhere('type')->eq('story')
+            ->beginIF($showGrades && isset($storyGrades))->andWhere('grade')->in($storyGrades)->fi()
+            ->fi()
+            ->beginIF($storyType == 'epic')
+            ->andWhere('((type')->eq('requirement')
+            ->beginIF($showGrades && isset($requirementGrades))->andWhere('grade')->in($requirementGrades)->fi()
+            ->markRight(1)
+            ->orWhere('(type')->eq('story')
+            ->beginIF($showGrades && isset($storyGrades))->andWhere('grade')->in($storyGrades)->fi()
+            ->markRight(1)
+            ->markRight(1)
+            ->fi()
+            ->fetchAll('id');
+
+        if($children)
+        {
+            $children = $this->storyTao->mergePlanTitleAndChildren($productID, $children, $storyType);
+            return array_merge($stories, $children);
+        }
+
+        return $stories;
+    }
+
     /**
      * Set report condition.
      *
+     * @param  string $storyType
      * @access public
      * @return string
      */
-    public function reportCondition(): string
+    public function reportCondition(string $storyType): string
     {
-        if(isset($_SESSION['storyQueryCondition']))
+        $queryCondition = $storyType . 'QueryCondition';
+        $onlyCondition  = $storyType . 'OnlyCondition';
+        if(isset($_SESSION[$queryCondition]))
         {
-            if(!$this->session->storyOnlyCondition)
+            if(!$this->session->{$onlyCondition})
             {
-                preg_match_all('/[`"]' . trim(TABLE_STORY, '`') .'[`"] AS ([\w]+) /', $this->session->storyQueryCondition, $matches);
+                preg_match_all('/[`"]' . trim(TABLE_STORY, '`') .'[`"] AS ([\w]+) /', $this->session->{$queryCondition}, $matches);
                 $tableAlias = isset($matches[1][0]) ? $matches[1][0] . '.' : '';
-                return 'id in (' . preg_replace('/SELECT .* FROM/', "SELECT $tableAlias" . "id FROM", $this->session->storyQueryCondition) . ')';
+                return 'id in (' . preg_replace('/SELECT .* FROM/', "SELECT $tableAlias" . "id FROM", $this->session->{$queryCondition}) . ')';
             }
-            return $this->session->storyQueryCondition;
+            return $this->session->{$queryCondition};
         }
         return '1=1';
     }
@@ -3410,19 +3865,20 @@ class storyModel extends model
     /**
      * Check force review for user.
      *
+     * @param  string $storyType
      * @access public
      * @return bool
      */
-    public function checkForceReview(): bool
+    public function checkForceReview(string $storyType = 'story'): bool
     {
         $forceReview = false;
 
-        $forceField       = $this->config->story->needReview == 0 ? 'forceReview' : 'forceNotReview';
-        $forceReviewRoles = !empty($this->config->story->{$forceField . 'Roles'}) ? $this->config->story->{$forceField . 'Roles'} : '';
-        $forceReviewDepts = !empty($this->config->story->{$forceField . 'Depts'}) ? $this->config->story->{$forceField . 'Depts'} : '';
+        $forceField       = $this->config->{$storyType}->needReview == 0 ? 'forceReview' : 'forceNotReview';
+        $forceReviewRoles = !empty($this->config->{$storyType}->{$forceField . 'Roles'}) ? $this->config->{$storyType}->{$forceField . 'Roles'} : '';
+        $forceReviewDepts = !empty($this->config->{$storyType}->{$forceField . 'Depts'}) ? $this->config->{$storyType}->{$forceField . 'Depts'} : '';
 
         $forceUsers = '';
-        if(!empty($this->config->story->{$forceField})) $forceUsers = $this->config->story->{$forceField};
+        if(!empty($this->config->{$storyType}->{$forceField})) $forceUsers = $this->config->{$storyType}->{$forceField};
 
         if(!empty($forceReviewRoles) or !empty($forceReviewDepts))
         {
@@ -3441,7 +3897,7 @@ class storyModel extends model
             $forceUsers .= "," . implode(',', array_keys($users));
         }
 
-        $forceReview = $this->config->story->needReview == 0 ? strpos(",{$forceUsers},", ",{$this->app->user->account},") !== false : strpos(",{$forceUsers},", ",{$this->app->user->account},") === false;
+        $forceReview = $this->config->{$storyType}->needReview == 0 ? strpos(",{$forceUsers},", ",{$this->app->user->account},") !== false : strpos(",{$forceUsers},", ",{$this->app->user->account},") === false;
 
         return $forceReview;
     }
@@ -3495,6 +3951,85 @@ class storyModel extends model
         return $tracks;
     }
 
+    /**
+     * 根据传入的需求获取跟踪矩阵，返回看板格式数据。
+     * Get track by stories, return kanban format.
+     *
+     * @param  array   $stories
+     * @param  string  $storyType    epic|requirement|story
+     * @access public
+     * @return array
+     */
+    public function getTracksByStories(array $stories, string $storyType): array
+    {
+        if(empty($stories)) return array();
+
+        $rootIdList = array_unique(array_column($stories, 'root'));
+        $allStories = $this->dao->select('id,parent,color,isParent,root,path,grade,product,pri,type,status,stage,title,estimate')->from(TABLE_STORY)->where('root')->in($rootIdList)->andWhere('deleted')->eq(0)->orderBy('type,grade,parent')->fetchAll('id');
+        $leafNodes  = $this->storyTao->getLeafNodes($stories, array_keys($allStories));
+
+        $tracks = array();
+        $lanes  = $this->storyTao->buildTrackLanes($leafNodes, $storyType);
+        $cols   = $this->storyTao->buildTrackCols($storyType);
+        $items  = $this->storyTao->buildTrackItems($allStories, $leafNodes, $storyType);
+
+        return array('lanes' => $lanes, 'cols' => $cols, 'items' => $items, 'leafNodes' => $leafNodes);
+    }
+
+    /**
+     * 获取矩阵需要合并的单元格。
+     * Get need merge cells for track.
+     *
+     * @param  array   $tracks
+     * @param  array   $showCols
+     * @access public
+     * @return array
+     */
+    public function getMergeTrackCells(array $tracks, array $showCols): array
+    {
+        $storyCols = array();
+        foreach($showCols as $colType)
+        {
+            if(!in_array($colType, array('epic', 'requirement', 'story'))) continue;
+            foreach($tracks['cols'] as $col)
+            {
+                $colName = $col['name'];
+                if($col['parent'] == -1) continue;
+                if(str_contains($colName, $colType)) $storyCols[] = $col;
+            }
+        }
+
+        $firstCol   = zget(reset($storyCols), 'name', '');
+        $leafNodes  = $tracks['leafNodes'];
+        $mergeCells = array();
+        $preRoot    = 0;
+        foreach($tracks['lanes'] as $lane)
+        {
+            $laneName = $lane['name'];
+
+            $storyID  = substr($laneName, 5);
+            $story    = zget($leafNodes, $storyID, '');
+            if(empty($story)) continue;
+
+            if($preRoot != $story->root)
+            {
+                $preRoot = $story->root;
+                continue;
+            }
+            if(!empty($tracks['items'][$laneName][$firstCol])) continue;
+
+            foreach($storyCols as $col)
+            {
+                $colName = $col['name'];
+                if(!empty($tracks['items'][$laneName][$colName])) break;
+
+                $mergeCells[$laneName][$colName] = true;
+            }
+        }
+
+        return $mergeCells;
+    }
+
     /**
      * 获取产品或项目关联的用户需求跟踪矩阵。
      * Get requirements track.
@@ -3547,56 +4082,25 @@ class storyModel extends model
     }
 
     /**
-     * 获取单个用户需求的跟踪矩阵
-     * Get track by id.
-     *
-     * @param  int  $storyID
-     * @access public
-     * @return array
-     */
-    public function getTrackByID(int $storyID): array
-    {
-        $requirement = $this->getByID($storyID);
-
-        /* 获取该用户需求细分的研发需求，并构造跟踪矩阵信息。 */
-        $storyIdList = $this->storyTao->getRelation($requirement->id, 'requirement');
-        $stories     = $this->dao->select('id,title,parent')->from(TABLE_STORY)->where('id')->in($storyIdList)->andWhere('deleted')->eq(0)->fetchAll('id');
-        $track       = array();
-        foreach($stories as $id => $story) $track[$id] = $this->storyTao->buildStoryTrack($story);
-
-        return $track;
-    }
-
-    /**
-     * 通过关系表查询UR关联的SR或SR关联的UR。
-     * Get SR or UR with the relationship between UR and SR.
+     * 获取需求关联的需求列表。
+     * Get story relation.
      *
      * @param  int    $storyID
      * @param  string $storyType story|requirement
-     * @param  array  $fields
      * @access public
      * @return array
      */
-    public function getStoryRelation(int $storyID, string $storyType = 'story', array $fields = array()): array
+    public function getStoryRelation(int $storyID, string $storyType = 'story'): array
     {
-        $conditionField = $storyType == 'story' ? 'BID' : 'AID';
-        $storyType      = $storyType == 'story' ? 'AID' : 'BID';
-
-        $relations = $this->dao->select($storyType)->from(TABLE_RELATION)
-            ->where('AType')->eq('requirement')
-            ->andWhere('BType')->eq('story')
-            ->andWhere('relation')->eq('subdivideinto')
-            ->andWhere($conditionField)->eq($storyID)
-            ->fetchPairs();
+        $relations = $this->storyTao->getRelation($storyID, $storyType);
 
         if(empty($relations)) return array();
 
-        $fields = empty($fields) ? '*' : implode(',', $fields);
-        return $this->dao->select($fields)->from(TABLE_STORY)
+        return $this->dao->select('*')->from(TABLE_STORY)
             ->where('id')->in($relations)
             ->andWhere('deleted')->eq('0')
             ->orderBy('id_desc')
-            ->fetchAll();
+            ->fetchGroup('type', 'id');
     }
 
     /**
@@ -3623,8 +4127,8 @@ class storyModel extends model
     }
 
     /**
-     * 关联软件需求和用户需求。
-     * Create a relationship between the story and the requirement.
+     * 需求关联需求。
+     * Story link story.
      *
      * @param  int          $storyID
      * @param  array|object storyList  postedData
@@ -3633,36 +4137,39 @@ class storyModel extends model
      */
     public function linkStories(int $storyID, array|object $storyList = array()): void
     {
-        $story   = $this->getByID($storyID);
-        $stories = empty($storyList) ? $this->post->stories : $storyList;
-        $isStory = ($story->type == 'story');
+        $story       = $this->getByID($storyID);
+        $linkStories = $this->getByList($storyList);
 
-        foreach($stories as $id)
+        $this->loadModel('action');
+        foreach($linkStories as $id => $linkStory)
         {
-            $requirement = $this->getByID((int)$id);
             $data = new stdclass();
-            $data->AType    = 'requirement';
-            $data->BType    = 'story';
+            $data->AType    = $story->type;
+            $data->BType    = $linkStory->type;
             $data->product  = $story->product;
-            $data->relation = 'subdivideinto';
-            $data->AID      = $isStory ? $id : $storyID;
-            $data->BID      = $isStory ? $storyID : $id;
-            $data->AVersion = $isStory ? $requirement->version : $story->version;
-            $data->BVersion = $isStory ? $story->version : $requirement->version;
+            $data->relation = 'linkedto';
+            $data->AID      = $storyID;
+            $data->BID      = $id;
+            $data->AVersion = $story->version;
+            $data->BVersion = $linkStory->version;
 
             $this->dao->insert(TABLE_RELATION)->data($data)->autoCheck()->exec();
 
-            $data->AType    = 'story';
-            $data->BType    = 'requirement';
-            $data->relation = 'subdividedfrom';
-            $data->product  = $story->product;
-            $data->AID      = $isStory ? $storyID : $id;
-            $data->BID      = $isStory ? $id : $storyID;
-            $data->AVersion = $isStory ? $story->version : $requirement->version;
-            $data->BVersion = $isStory ? $requirement->version : $story->version;
+            $data->AType    = $linkStory->type;
+            $data->BType    = $story->type;
+            $data->product  = $linkStory->product;
+            $data->relation = 'linkedfrom';
+            $data->AID      = $id;
+            $data->BID      = $storyID;
+            $data->AVersion = $linkStory->version;
+            $data->BVersion = $story->version;
 
             $this->dao->insert(TABLE_RELATION)->data($data)->autoCheck()->exec();
+
+            $this->action->create('story', $id, 'linkrelatedstory', '', $storyID);
         }
+
+        $this->action->create('story', $storyID, 'linkrelatedstory', '', implode(',', array_keys($linkStories)));
     }
 
     /**
@@ -3678,13 +4185,16 @@ class storyModel extends model
         $idList = "$storyID,$linkedStoryID";
 
         $this->dao->delete()->from(TABLE_RELATION)
-            ->where('AType')->in('story,requirement')
-            ->andWhere('BType')->in('story,requirement')
-            ->andWhere('relation')->in('subdivideinto,subdividedfrom')
+            ->where('AType')->in('story,requirement,epic')
+            ->andWhere('BType')->in('story,requirement,epic')
+            ->andWhere('relation')->in('linkedto,linkedfrom')
             ->andWhere('AID')->in($idList)
             ->andWhere('BID')->in($idList)
             ->exec();
 
+        $this->loadModel('action')->create('story', $storyID, 'unlinkrelatedstory', '', $linkedStoryID);
+        $this->loadModel('action')->create('story', $linkedStoryID, 'unlinkrelatedstory', '', $storyID);
+
         return !dao::isError();
     }
 
@@ -3822,51 +4332,63 @@ class storyModel extends model
      */
     public function replaceURLang(string $type): void
     {
-        if($type != 'requirement') return;
-
         $storyLang = $this->lang->story;
         $SRCommon  = $this->lang->SRCommon;
-        $URCommon  = $this->lang->URCommon;
+        if($this->app->tab != 'product' && $this->app->rawMethod == 'report')
+        {
+            $replacement = $this->lang->common->story;
+            $storyLang->report->charts['storiesPerProduct'] = str_replace($SRCommon, $replacement, $storyLang->report->charts['storiesPerProduct']);
+            $storyLang->report->charts['storiesPerModule']  = str_replace($SRCommon, $replacement, $storyLang->report->charts['storiesPerModule']);
+            $storyLang->report->charts['storiesPerSource']  = str_replace($SRCommon, $replacement, $storyLang->report->charts['storiesPerSource']);
+        }
+        else
+        {
+            if($type == 'story') return;
+            $replacement = $type == 'requirement' ? $this->lang->URCommon : $this->lang->epic->common;
 
-        $storyLang->create             = str_replace($SRCommon, $URCommon, $storyLang->create);
-        $storyLang->changeAction       = str_replace($SRCommon, $URCommon, $storyLang->changeAction);
-        $storyLang->changed            = str_replace($SRCommon, $URCommon, $storyLang->changed);
-        $storyLang->assignAction       = str_replace($SRCommon, $URCommon, $storyLang->assignAction);
-        $storyLang->reviewAction       = str_replace($SRCommon, $URCommon, $storyLang->reviewAction);
-        $storyLang->subdivideAction    = str_replace($SRCommon, $URCommon, $storyLang->subdivideAction);
-        $storyLang->closeAction        = str_replace($SRCommon, $URCommon, $storyLang->closeAction);
-        $storyLang->activateAction     = str_replace($SRCommon, $URCommon, $storyLang->activateAction);
-        $storyLang->deleteAction       = str_replace($SRCommon, $URCommon, $storyLang->deleteAction);
-        $storyLang->view               = str_replace($SRCommon, $URCommon, $storyLang->view);
-        $storyLang->linkStory          = str_replace($SRCommon, $URCommon, $storyLang->linkStory);
-        $storyLang->exportAction       = str_replace($SRCommon, $URCommon, $storyLang->exportAction);
-        $storyLang->zeroCase           = str_replace($SRCommon, $URCommon, $storyLang->zeroCase);
-        $storyLang->zeroTask           = str_replace($SRCommon, $URCommon, $storyLang->zeroTask);
-        $storyLang->copyTitle          = str_replace($SRCommon, $URCommon, $storyLang->copyTitle);
-        $storyLang->common             = str_replace($SRCommon, $URCommon, $storyLang->common);
-        $storyLang->title              = str_replace($SRCommon, $URCommon, $storyLang->title);
-        $storyLang->spec               = str_replace($SRCommon, $URCommon, $storyLang->spec);
-        $storyLang->children           = str_replace($SRCommon, $URCommon, $storyLang->children);
-        $storyLang->linkStories        = str_replace($SRCommon, $URCommon, $storyLang->linkStories);
-        $storyLang->childStories       = str_replace($SRCommon, $URCommon, $storyLang->childStories);
-        $storyLang->duplicateStory     = str_replace($SRCommon, $URCommon, $storyLang->duplicateStory);
-        $storyLang->newStory           = str_replace($SRCommon, $URCommon, $storyLang->newStory);
-        $storyLang->copy               = str_replace($SRCommon, $URCommon, $storyLang->copy);
-        $storyLang->total              = str_replace($SRCommon, $URCommon, $storyLang->total);
-        $storyLang->released           = str_replace($SRCommon, $URCommon, $storyLang->released);
-        $storyLang->legendLifeTime     = str_replace($SRCommon, $URCommon, $storyLang->legendLifeTime);
-        $storyLang->legendLinkStories  = str_replace($SRCommon, $URCommon, $storyLang->legendLinkStories);
-        $storyLang->legendChildStories = str_replace($SRCommon, $URCommon, $storyLang->legendChildStories);
-        $storyLang->legendSpec         = str_replace($SRCommon, $URCommon, $storyLang->legendSpec);
+            $storyLang->create             = str_replace($SRCommon, $replacement, $storyLang->create);
+            $storyLang->changeAction       = str_replace($SRCommon, $replacement, $storyLang->changeAction);
+            $storyLang->changed            = str_replace($SRCommon, $replacement, $storyLang->changed);
+            $storyLang->assignAction       = str_replace($SRCommon, $replacement, $storyLang->assignAction);
+            $storyLang->reviewAction       = str_replace($SRCommon, $replacement, $storyLang->reviewAction);
+            $storyLang->subdivideAction    = str_replace($SRCommon, $replacement, $storyLang->subdivideAction);
+            $storyLang->closeAction        = str_replace($SRCommon, $replacement, $storyLang->closeAction);
+            $storyLang->activateAction     = str_replace($SRCommon, $replacement, $storyLang->activateAction);
+            $storyLang->deleteAction       = str_replace($SRCommon, $replacement, $storyLang->deleteAction);
+            $storyLang->view               = str_replace($SRCommon, $replacement, $storyLang->view);
+            $storyLang->linkStory          = str_replace($SRCommon, $replacement, $storyLang->linkStory);
+            $storyLang->exportAction       = str_replace($SRCommon, $replacement, $storyLang->exportAction);
+            $storyLang->zeroCase           = str_replace($SRCommon, $replacement, $storyLang->zeroCase);
+            $storyLang->zeroTask           = str_replace($SRCommon, $replacement, $storyLang->zeroTask);
+            $storyLang->copyTitle          = str_replace($SRCommon, $replacement, $storyLang->copyTitle);
+            $storyLang->title              = str_replace($SRCommon, $replacement, $storyLang->title);
+            $storyLang->spec               = str_replace($SRCommon, $replacement, $storyLang->spec);
+            $storyLang->children           = str_replace($SRCommon, $replacement, $storyLang->children);
+            $storyLang->linkStories        = str_replace($SRCommon, $replacement, $storyLang->linkStories);
+            $storyLang->childStories       = str_replace($SRCommon, $replacement, $storyLang->childStories);
+            $storyLang->duplicateStory     = str_replace($SRCommon, $replacement, $storyLang->duplicateStory);
+            $storyLang->newStory           = str_replace($SRCommon, $replacement, $storyLang->newStory);
+            $storyLang->copy               = str_replace($SRCommon, $replacement, $storyLang->copy);
+            $storyLang->total              = str_replace($SRCommon, $replacement, $storyLang->total);
+            $storyLang->released           = str_replace($SRCommon, $replacement, $storyLang->released);
+            $storyLang->legendLifeTime     = str_replace($SRCommon, $replacement, $storyLang->legendLifeTime);
+            $storyLang->legendLinkStories  = str_replace($SRCommon, $replacement, $storyLang->legendLinkStories);
+            $storyLang->legendChildStories = str_replace($SRCommon, $replacement, $storyLang->legendChildStories);
+            $storyLang->legendSpec         = str_replace($SRCommon, $replacement, $storyLang->legendSpec);
+            $storyLang->unlinkStory        = str_replace($SRCommon, $replacement, $storyLang->unlinkStory);
+            $storyLang->legendLifeTime     = str_replace($SRCommon, $replacement, $storyLang->legendLifeTime);
+            $storyLang->legendLinkStories  = str_replace($SRCommon, $replacement, $storyLang->legendLinkStories);
+            $storyLang->legendChildStories = str_replace($SRCommon, $replacement, $storyLang->legendChildStories);
+            $storyLang->legendSpec         = str_replace($SRCommon, $replacement, $storyLang->legendSpec);
 
-        $storyLang->notice->closed           = str_replace($SRCommon, $URCommon, $storyLang->notice->closed);
-        $storyLang->notice->reviewerNotEmpty = str_replace($SRCommon, $URCommon, $storyLang->notice->reviewerNotEmpty);
-        $storyLang->skipStory                = str_replace($SRCommon, $URCommon, $storyLang->skipStory);
-        $storyLang->closedStory              = str_replace($SRCommon, $URCommon, $storyLang->closedStory);
+            $storyLang->notice->closed           = str_replace($SRCommon, $replacement, $storyLang->notice->closed);
+            $storyLang->notice->reviewerNotEmpty = str_replace($SRCommon, $replacement, $storyLang->notice->reviewerNotEmpty);
+            $storyLang->closedStory              = str_replace($SRCommon, $replacement, $storyLang->closedStory);
 
-        $storyLang->report->charts['storiesPerProduct'] = str_replace($SRCommon, $URCommon, $storyLang->report->charts['storiesPerProduct']);
-        $storyLang->report->charts['storiesPerModule']  = str_replace($SRCommon, $URCommon, $storyLang->report->charts['storiesPerModule']);
-        $storyLang->report->charts['storiesPerSource']  = str_replace($SRCommon, $URCommon, $storyLang->report->charts['storiesPerSource']);
+            $storyLang->report->charts['storiesPerProduct'] = str_replace($SRCommon, $replacement, $storyLang->report->charts['storiesPerProduct']);
+            $storyLang->report->charts['storiesPerModule']  = str_replace($SRCommon, $replacement, $storyLang->report->charts['storiesPerModule']);
+            $storyLang->report->charts['storiesPerSource']  = str_replace($SRCommon, $replacement, $storyLang->report->charts['storiesPerSource']);
+        }
     }
 
     /**
@@ -3897,7 +4419,8 @@ class storyModel extends model
         $rejectCount  = 0;
         $revertCount  = 0;
         $clarifyCount = 0;
-        $reviewRule   = !empty($this->config->story->reviewRules) ? $this->config->story->reviewRules : 'allpass';
+        $moduleName   = $this->app->rawModule;
+        $reviewRule   = !empty($this->config->{$moduleName}->reviewRules) ? $this->config->{$moduleName}->reviewRules : 'allpass';
         foreach($reviewerList as $result)
         {
             $passCount    = $result == 'pass'    ? $passCount    + 1 : $passCount;
@@ -4166,15 +4689,17 @@ class storyModel extends model
         /* Get stories. */
         $stories        = array();
         $selectedIDList = $this->cookie->checkedItem ? $this->cookie->checkedItem : '0';
-        if($this->session->storyOnlyCondition)
+        $queryCondition = $storyType . 'QueryCondition';
+        $onlyCondition  = $storyType . 'OnlyCondition';
+        if($this->session->$onlyCondition)
         {
-            $queryCondition = $postData->exportType == 'selected' ? ' `id` ' . helper::dbIN($selectedIDList) : str_replace('`story`', '`id`', $this->session->storyQueryCondition);
-            $stories        = $this->dao->select('id,title,linkStories,childStories,parent,mailto,reviewedBy')->from(TABLE_STORY)->where($queryCondition)->orderBy($orderBy)->fetchAll('id');
+            $queryCondition = $postData->exportType == 'selected' ? ' `id` ' . helper::dbIN($selectedIDList) : str_replace('`story`', '`id`', $this->session->$queryCondition);
+            $stories        = $this->dao->select('id,title,type,grade,linkStories,parent,mailto,reviewedBy')->from(TABLE_STORY)->where($queryCondition)->orderBy($orderBy)->fetchAll('id');
         }
         else
         {
             $orderBy  = " ORDER BY " . helper::wrapSqlAfterOrderBy($orderBy);
-            $querySQL = $this->session->storyQueryCondition . $orderBy;
+            $querySQL = $this->session->$queryCondition . $orderBy;
             if($postData->exportType == 'selected') $querySQL = "SELECT * FROM " . TABLE_STORY . "WHERE `id` IN({$selectedIDList})" . $orderBy;
 
             $stmt = $this->app->dbQuery($querySQL);
@@ -4183,14 +4708,18 @@ class storyModel extends model
 
         if(empty($stories)) return $stories;
 
-        $storyIdList = array_keys($stories);
-        $children    = array();
+        $storyIdList  = array_keys($stories);
+        $children     = array();
+        $parentIdList = array();
         foreach($stories as $story)
         {
-            if($story->parent > 0 and isset($stories[$story->parent]))
+            if($story->parent > 0)
             {
-                $children[$story->parent][$story->id] = $story;
-                unset($stories[$story->id]);
+                $parentIdList[] = $story->parent;
+                if(isset($stories[$story->parent]))
+                {
+                    $children[$story->parent][$story->id] = $story;
+                }
             }
         }
 
@@ -4212,6 +4741,7 @@ class storyModel extends model
         $storyTasks = $this->loadModel('task')->getStoryTaskCounts($storyIdList);
         $storyBugs  = $this->loadModel('bug')->getStoryBugCounts($storyIdList);
         $storyCases = $this->loadModel('testcase')->getStoryCaseCounts($storyIdList);
+        $parents    = $this->dao->select('id, title')->from(TABLE_STORY)->where('id')->in($parentIdList)->fetchPairs('id', 'title');
 
         /* Get related objects title or names. */
         $relatedSpecs   = $this->dao->select('*')->from(TABLE_STORYSPEC)->where('`story`')->in($storyIdList)->orderBy('version desc')->fetchGroup('story');
@@ -4223,9 +4753,10 @@ class storyModel extends model
             if(!empty($relatedSpec[0]->files)) $fileIdList[] = $relatedSpec[0]->files;
         }
         $fileIdList   = array_unique($fileIdList);
-        $relatedFiles = $this->dao->select('id, objectID, pathname, title')->from(TABLE_FILE)->where('objectType')->eq('story')->andWhere('objectID')->in($storyIdList)->andWhere('extra')->ne('editor')->fetchGroup('objectID');
+        $relatedFiles = $this->dao->select('id, objectID, pathname, title')->from(TABLE_FILE)->where('objectType')->eq($storyType)->andWhere('objectID')->in($storyIdList)->andWhere('extra')->ne('editor')->fetchGroup('objectID');
         $filesInfo    = $this->dao->select('id, objectID, pathname, title')->from(TABLE_FILE)->where('id')->in($fileIdList)->andWhere('extra')->ne('editor')->fetchAll('id');
 
+        $gradeGroup = $this->getGradeGroup();
         foreach($stories as $story)
         {
             $story->spec   = '';
@@ -4266,14 +4797,6 @@ class storyModel extends model
                 $story->linkStories = implode("; \n", array_filter($tmpLinkStories));
             }
 
-            if($story->childStories)
-            {
-                $tmpChildStories = array();
-                $childStoriesIdList = explode(',', $story->childStories);
-                foreach($childStoriesIdList as $childStoryID) $tmpChildStories[] = zget($relatedStories, trim($childStoryID), '');
-                $story->childStories = implode("; \n", array_filter($tmpChildStories));
-            }
-
             /* Set related files. */
             $story->files = '';
             if(isset($relatedFiles[$story->id]))
@@ -4292,6 +4815,11 @@ class storyModel extends model
             $reviewedByList = array_filter(explode(',', $story->reviewedBy));
             foreach($reviewedByList as $i => $reviewedBy) $reviewedByList[$i] = zget($users, trim($reviewedBy));
             $story->reviewedBy = implode(',', array_filter($reviewedByList));
+
+            $gradePairs    = zget($gradeGroup, $story->type, array());
+            $grade         = zget($gradePairs, $story->grade, '');
+            $story->grade  = $grade->name;
+            $story->parent = zget($parents, $story->parent, '');
         }
 
         return $stories;
@@ -4440,15 +4968,15 @@ class storyModel extends model
      * @param  string $type
      * @param  object $execution
      * @param  string $storyType story|requirement
+     * @param  array  $maxGradeGroup
      * @access public
      * @return array
      */
-    public function buildActionButtonList(object $story, $type = 'browse', object|null $execution = null, $storyType = 'story'): array
+    public function buildActionButtonList(object $story, $type = 'browse', object|null $execution = null, $storyType = 'story', array $maxGradeGroup = array()): array
     {
-        $menu   = '';
         $params = "storyID=$story->id";
 
-        if($type == 'browse') return $this->storyTao->buildBrowseActionBtnList($story, $params, $storyType, $execution);
+        if($type == 'browse') return $this->storyTao->buildBrowseActionBtnList($story, $params, $storyType, $execution, $maxGradeGroup);
         return array();
     }
 
@@ -4459,12 +4987,13 @@ class storyModel extends model
      * @param  object $story
      * @param  array  $options
      * @param  string $storyType sting|requirement
+     * @param  array  $maxGradeGroup
      * @access public
      * @return object
      */
-    public function formatStoryForList(object $story, array $options = array(), string $storyType = 'story'): object
+    public function formatStoryForList(object $story, array $options = array(), string $storyType = 'story', array $maxGradeGroup = array()): object
     {
-        $story->actions  = $this->buildActionButtonList($story, 'browse', zget($options, 'execution', null), $storyType);
+        $story->actions  = $this->buildActionButtonList($story, 'browse', zget($options, 'execution', null), $storyType, $maxGradeGroup);
         $story->estimate = $story->estimate . $this->config->hourUnit;
 
         $story->taskCount = zget(zget($options, 'storyTasks', array()), $story->id, 0);
@@ -4476,9 +5005,10 @@ class storyModel extends model
         $story->roadmap   = zget(zget($options, 'roadmaps', array()), $story->roadmap, 0);
 
         $story->sourceNote   = $story->source == 'researchreport' ? zget(zget($options, 'reports', array()), $story->sourceNote, '') : $story->sourceNote;
-        $story->source       = zget($this->lang->story->sourceList,   $story->source, '');
-        $story->category     = zget($this->lang->story->categoryList, $story->category);
-        $story->closedReason = zget($this->lang->story->reasonList,   $story->closedReason);
+        $story->pri          = zget($this->lang->{$storyType}->priList,      $story->pri);
+        $story->source       = zget($this->lang->{$storyType}->sourceList,   $story->source);
+        $story->category     = zget($this->lang->{$storyType}->categoryList, $story->category);
+        $story->closedReason = zget($this->lang->{$storyType}->reasonList,   $story->closedReason);
 
         /* Set rowKey to uniqueID in dTable. */
         $story->uniqueID = $story->parent > 0 ? $story->parent . '-' . $story->id : $story->id;
@@ -4510,6 +5040,17 @@ class storyModel extends model
             $story->actions = $actions;
         }
 
+        /* Parent story has changed. */
+        if(!empty($story->parentChanged))
+        {
+            $story->rawStatus = 'changing';
+            $story->status    = $this->lang->story->parent . $this->lang->story->change;
+        }
+        else
+        {
+            $story->rawStatus = $story->status;
+            $story->status    = zget($this->lang->{$story->type}->statusList, $story->status);
+        }
         return $story;
     }
 
@@ -4546,7 +5087,6 @@ class storyModel extends model
             ->leftJoin(TABLE_STORY)->alias('t2')->on('t1.story = t2.id')
             ->where('t1.project')->eq($projectID)
             ->andWhere('t2.deleted')->eq(0)
-            ->beginIF($this->config->vision != 'lite')->andWhere('t2.type')->eq('story')->fi()
             ->orderBy('t1.`order`_desc')
             ->fetchAll();
     }
@@ -4591,4 +5131,260 @@ class storyModel extends model
 
         return $storyStatus;
     }
+
+    /**
+     * 需求下拉列表增加层级标签。
+     * Add grade label to story options.
+     *
+     * @param  array  $stories
+     * @access public
+     * @return array
+     */
+    public function addGradeLabel(array $stories): array
+    {
+        $gradeGroup = $this->getGradeGroup();
+
+        $storyList = $this->getByList(array_keys($stories));
+
+        $options = array();
+        foreach($storyList as $story)
+        {
+            $gradePairs = zget($gradeGroup, $story->type, array());
+            $storyTitle = is_string($stories[$story->id]) ? $stories[$story->id] : $story->title;
+            if(isset($gradePairs[$story->grade]))
+            {
+                $options[] = array('text' => array('html' => "<span class='label rounded-xl ring-0 inverse bg-opacity-10 text-inherit mr-1 size-sm'>{$gradePairs[$story->grade]->name}</span> {$storyTitle}"), 'value' => $story->id, 'keys' => $storyTitle);
+            }
+            else
+            {
+                $options[] = array('text' => $stories[$story->id], 'value' => $story->id);
+            }
+        }
+
+        return $options;
+    }
+
+    /**
+     * Get story grade list.
+     *
+     * @param  string $type story|requirement|epic
+     * @access public
+     * @return array
+     */
+    public function getGradeList(string $type = 'story'): array
+    {
+        return $this->dao->select('*')->from(TABLE_STORYGRADE)
+            ->where('1=1')
+            ->beginIF($type)->andWhere('type')->eq($type)->fi()
+            ->orderBy('grade_asc')
+            ->fetchAll();
+    }
+
+    /**
+     * Get story grade group.
+     *
+     * @access public
+     * @return array
+     */
+    public function getGradeGroup(): array
+    {
+        return $this->dao->select('type, grade, name')->from(TABLE_STORYGRADE)->orderBy('type,grade')->fetchGroup('type', 'grade');
+    }
+
+    /**
+     * Get story grade pairs.
+     *
+     * @param  string $type story|requirement|epic
+     * @param  string $status enable|disable
+     * @param  array  $appendList
+     * @access public
+     * @return array
+     */
+    public function getGradePairs(string $type = 'story', string $status = 'enable', array $appendList = array()): array
+    {
+        return $this->dao->select("grade, name")->from(TABLE_STORYGRADE)
+            ->where('type')->eq($type)
+            ->beginIF($status == 'enable')->andWhere('status')->eq('enable')->fi()
+            ->beginIF($appendList)
+            ->orWhere('(grade')->in($appendList)
+            ->andWhere('type')->eq($type)
+            ->markRight(1)
+            ->fi()
+            ->orderBy('grade_asc')
+            ->fetchPairs();
+    }
+
+    /**
+     * 获取需求列表层级设置菜单。
+     * Get grade menu in story list.
+     *
+     * @param  string $storyType
+     * @param  object $project
+     * @access public
+     * @return array
+     */
+    public function getGradeMenu(string $storyType, object $project = null): array
+    {
+        $storyTypes      = isset($project->storyType) ? explode(',', $project->storyType) : array();
+        $showEpic        = $storyType == 'epic' || in_array('epic', $storyTypes) || $storyType == 'all';
+        $showRequirement = $showEpic || $storyType == 'requirement' || in_array('requirement', $storyTypes) || $storyType == 'all';
+
+        $menu = array();
+        if($showEpic)
+        {
+            $items = array();
+            $gradePairs = $this->getGradePairs('epic', 'all');
+            foreach($gradePairs as $grade => $name) $items[] = array('text' => $name, 'value' => "epic{$grade}");
+            $menu[] = array('text' => $this->lang->preview . $this->lang->ERCommon, 'value' => 'epic', 'items' => $items);
+        }
+
+        if($showRequirement)
+        {
+            $items = array();
+            $gradePairs = $this->getGradePairs('requirement', 'all');
+            foreach($gradePairs as $grade => $name) $items[] = array('text' => $name, 'value' => "requirement{$grade}");
+            $menu[] = array('text' => $this->lang->preview . $this->lang->URCommon, 'value' => 'requirement', 'items' => $items);
+        }
+
+        $items = array();
+        $gradePairs = $this->getGradePairs('story', 'all');
+        foreach($gradePairs as $grade => $name) $items[] = array('text' => $name, 'value' => "story{$grade}");
+        $menu[] = array('text' => $this->lang->preview . $this->lang->SRCommon, 'value' => 'story', 'items' => $items);
+
+        return $menu;
+    }
+
+    /**
+     * 获取需求层级下拉列表。
+     * Get grade options.
+     *
+     * @param  object|bool $story
+     * @param  string      $storyType
+     * @param  array       $appendList
+     * @access public
+     * @return array
+     */
+    public function getGradeOptions(object|bool $story, string $storyType, array $appendList = array()): array
+    {
+        if(!$story) return $this->getGradePairs($storyType, 'enable', $appendList);
+
+        $gradeOptions = array();
+        if($storyType != $story->type)
+        {
+            $gradeOptions = $this->getGradePairs($storyType, 'enable', $appendList);
+        }
+        else
+        {
+            $gradeOptions = $this->dao->select('grade, name')->from(TABLE_STORYGRADE)
+                ->where('type')->eq($storyType)
+                ->andWhere('grade')->gt($story->grade)
+                ->andWhere('status')->eq('enable')
+                ->beginIF($appendList)
+                ->orWhere('(grade')->in($appendList)
+                ->andWhere('type')->eq($storyType)
+                ->markRight(1)
+                ->fi()
+                ->orderBy('grade_asc')
+                ->fetchPairs();
+        }
+
+        return $gradeOptions;
+    }
+
+    /**
+     * 按照类型分组，获取需求最大层级。
+     * Get max grade group by story type.
+     *
+     * @access public
+     * @return array
+     */
+    public function getMaxGradeGroup()
+    {
+        return $this->dao->select('type, max(grade) as maxGrade')->from(TABLE_STORYGRADE)
+            ->where('status')->eq('enable')
+            ->groupBy('type')
+            ->fetchPairs();
+    }
+
+    /**
+     * 获取需求列表默认展示的层级。
+     * Get the default show grades.
+     *
+     * @param  array $gradeMenu
+     * @access public
+     * @return string
+     */
+    public function getDefaultShowGrades(array $gradeMenu): string
+    {
+        $showGrades = '';
+        foreach($gradeMenu as $menu)
+        {
+            foreach($menu['items'] as $item)
+            {
+                $showGrades .= $item['value'] . ',';
+            }
+        }
+
+        return $showGrades;
+    }
+
+    /**
+     * 检查需求层级是否合法。
+     * Check if the grade is valid.
+     *
+     * @param  object $story
+     * @param  object $oldStory
+     * @param  strign $mode     single|batch
+     * @access public
+     * @return bool
+     */
+    public function checkGrade(object $story, object $oldStory, string $mode = 'single')
+    {
+        $children = $this->getAllChildId($oldStory->id);
+        $maxGrade = $this->dao->select('max(grade) as maxGrade')->from(TABLE_STORY)
+             ->where('id')->in($children)
+             ->andWhere('deleted')->eq('0')
+             ->fetch('maxGrade');
+
+        $systemMaxGrade = $this->dao->select('max(grade) as maxGrade')->from(TABLE_STORYGRADE)
+            ->where('type')->eq($oldStory->type)
+            ->andWhere('status')->eq('enable')
+            ->fetch('maxGrade');
+
+        $newMaxGrade = (int)$maxGrade + (int)$story->grade - (int)$oldStory->grade;
+        if($newMaxGrade > $systemMaxGrade)
+        {
+            if($mode == 'batch') return false;
+            dao::$errors['grade'] = sprintf($this->lang->story->gradeOverflow, $systemMaxGrade, $newMaxGrade);
+        }
+
+        return !dao::isError();
+    }
+
+    /**
+     * 父需求层级变更时，同步子需求层级。
+     * Sync child story grade when parent story grade changed.
+     *
+     * @param  object $oldStory
+     * @param  object $story
+     * @access public
+     * @return array
+     */
+    public function syncGrade(object $oldStory, object $story)
+    {
+        if($oldStory->isParent != '1') return;
+
+        $childIdList = $this->getAllChildId($oldStory->id, false);
+        if($childIdList)
+        {
+            $this->loadModel('action');
+            $children = $this->getByList($childIdList);
+            foreach($children as $child)
+            {
+                $grade = (int)$child->grade + (int)$story->grade - (int)$oldStory->grade;
+                $this->dao->update(TABLE_STORY)->set('grade')->eq($grade)->where('id')->eq($child->id)->exec();
+                $this->action->create('story', $child->id, 'syncGrade', '', $grade);
+            }
+        }
+    }
 }
diff --git a/module/story/tao.php b/module/story/tao.php
index ba4fdff06b..6ba3380f11 100644
--- a/module/story/tao.php
+++ b/module/story/tao.php
@@ -67,29 +67,31 @@ class storyTao extends storyModel
     }
 
     /**
-     * 获取用户需求细分的研发需求，或者研发需求关联的用户需求。
-     * Get associated requirements.
+     * 获取需求主动关联、被动关联的需求。
+     * Get linked stories.
      *
      * @param  int     $storyID
      * @param  string  $storyType
-     * @param  array   $fields
      * @access public
      * @return array
      */
-    public function getRelation(int $storyID, string $storyType, array $fields = array()): array
+    public function getRelation(int $storyID, string $storyType): array
     {
-        /* 初始化查询条件变量。*/
-        $BType       = $storyType == 'story' ? 'requirement' : 'story';
-        $relation    = $storyType == 'story' ? 'subdividedfrom' : 'subdivideinto';
-        $queryFields = empty($fields) ? 'id,title' : implode(',', $fields);
-
-        /* 获取对应的关联数据。*/
-        return $this->dao->select('BID')->from(TABLE_RELATION)
+        /* 主动关联。*/
+        $linkedToList = $this->dao->select('BID')->from(TABLE_RELATION)
             ->where('AType')->eq($storyType)
-            ->andWhere('BType')->eq($BType)
-            ->andWhere('relation')->eq($relation)
             ->andWhere('AID')->eq($storyID)
+            ->andWhere('relation')->eq('linkedto')
             ->fetchPairs();
+
+        /* 被动关联。*/
+        $linkedFromList = $this->dao->select('AID')->from(TABLE_RELATION)
+            ->where('BType')->eq($storyType)
+            ->andWhere('BID')->eq($storyID)
+            ->andWhere('relation')->eq('linkedto')
+            ->fetchPairs();
+
+        return $linkedToList + $linkedFromList;
     }
 
     /**
@@ -284,59 +286,13 @@ class storyTao extends storyModel
         return "({$productQuery}) ";
     }
 
-    /**
-     * 将需求列表中的子需求合并到列表中的父需求下。
-     * Merge children to parent.
-     *
-     * @param  array     $stories
-     * @param  string    $type
-     * @access protected
-     * @return int[]
-     */
-    protected function appendSRToChildren(array $stories): array
-    {
-        /* For requirement children. */
-        $relationGroups = $this->batchGetRelations(array_keys($stories), 'requirement', array('*'));
-        if(empty($stories));
-
-        if($this->app->rawModule == 'projectstory')
-        {
-            $projectID = $this->session->project;
-            /* For story children. */
-            $relationIDList = array();
-            foreach($relationGroups as $relationGroup) $relationIDList = array_merge($relationIDList, array_keys($relationGroup));
-            $projectIDList = $this->dao->select('story,project')->from(TABLE_PROJECTSTORY)->where('story')->in($relationIDList)->andWhere('project')->eq($projectID)->fetchPairs('story', 'project');
-        }
-
-        foreach($stories as $story)
-        {
-            /* Merge subdivided stories for requirement. */
-            if(empty($relationGroups[$story->id])) continue;
-
-            $story->parent   = '-1';
-            $story->children = array();
-            foreach($relationGroups[$story->id] as $SRID => $SRStory)
-            {
-                if(empty($SRStory)) continue;
-                if(!empty($projectID) && !isset($projectIDList[$SRID])) continue;
-
-                $children = clone $SRStory;
-                $children->parent  = $story->id;
-                $children->project = isset($projectIDList[$SRID]) ? $projectIDList[$SRID] : 0;
-                $story->children[$SRID] = $children;
-            }
-            $story->linkStories = implode(',', array_column($story->children, 'title'));
-        }
-        return $stories;
-    }
-
     /**
      * 追加需求所属的计划标题和子需求。
      * Merge plan title and children.
      *
      * @param  int|array|string $productID
      * @param  array            $stories
-     * @param  string           $type          story|requirement
+     * @param  string           $type      story|requirement
      *
      * @access protected
      * @return array
@@ -352,40 +308,61 @@ class storyTao extends storyModel
         $plans = $this->dao->select('id,title')->from(TABLE_PRODUCTPLAN)->Where('deleted')->eq(0)->beginIF($productID)->andWhere('product')->in($productID)->fetchPairs('id', 'title');
 
         $parents = $this->extractParents($stories);
-        if($parents)
+        if($parents) $parents = $this->dao->select('id,title,status,version,type')->from(TABLE_STORY)->where('id')->in($parents)->andWhere('deleted')->eq(0)->fetchAll('id');
+
+        $childItems = $this->getChildItems($stories);
+
+        if($type != 'story')
         {
-            $children = $this->dao->select('id,parent,title')->from(TABLE_STORY)->where('parent')->in($parents)->andWhere('deleted')->eq(0)->fetchGroup('parent', 'id');
-            $parents  = $this->dao->select('id,title')->from(TABLE_STORY)->where('id')->in($parents)->andWhere('deleted')->eq(0)->fetchAll('id');
+            $sameTypeChildren = $this->dao->select('distinct t1.parent')->from(TABLE_STORY)->alias('t1')
+                 ->leftJoin(TABLE_STORY)->alias('t2')->on('t1.parent = t2.id')
+                 ->where('t1.parent')->in(array_keys($stories))
+                 ->andWhere('t1.type = t2.type')
+                 ->andWhere('t2.deleted')->eq(0)
+                 ->fetchPairs();
+
+            $otherTypeChildren = $this->dao->select('distinct t1.parent')->from(TABLE_STORY)->alias('t1')
+                 ->leftJoin(TABLE_STORY)->alias('t2')->on('t1.parent = t2.id')
+                 ->where('t1.parent')->in(array_keys($stories))
+                 ->andWhere('t1.type != t2.type')
+                 ->andWhere('t2.deleted')->eq(0)
+                 ->fetchPairs();
         }
 
-        $mainID  = $type == 'story' ? 'BID' : 'AID';
-        $countID = $type == 'story' ? 'AID' : 'BID';
-
-        $relations = $this->dao->select("$mainID, count($countID) as count")->from(TABLE_RELATION)
-            ->where('AType')->eq('requirement')
-            ->andWhere('BType')->eq('story')
-            ->andWhere('relation')->eq('subdivideinto')
-            ->groupBy($mainID)
-            ->fetchAll($mainID);
-
-        if($type == 'requirement') $stories = $this->appendSRToChildren($stories);
         foreach($stories as $story)
         {
-            /* Export story linkstories. */
-            if(isset($children[$story->id])) $story->linkStories = implode(',', array_column($children[$story->id], 'title'));
+            /* Judge parent story has changed. */
+            if($story->parent > 0 and isset($parents[$story->parent]))
+            {
+                if($parents[$story->parent]->version > $story->parentVersion && $story->parentVersion > 0 && $parents[$story->parent]->status == 'active') $story->parentChanged = true;
+            }
 
-            /* Merge parent story title. */
-            if($story->parent > 0 and isset($parents[$story->parent])) $story->parentName = $parents[$story->parent]->title;
+            /* Judge parent story if has same type child or other type child. */
+            if($story->type != 'story' && $story->isParent == '1')
+            {
+                if(isset($sameTypeChildren[$story->id]))  $story->hasSameTypeChild  = true;
+                if(isset($otherTypeChildren[$story->id])) $story->hasOtherTypeChild = true;
+            }
 
             /* Merge plan title. */
             $story->planTitle = '';
-            $storyPlans       = explode(',', trim($story->plan, ','));
+            $storyPlans       = explode(',', trim((string)$story->plan, ','));
             foreach($storyPlans as $planID) $story->planTitle .= zget($plans, $planID, '') . ' ';
 
-            if(isset($relations[$story->id]))
+            if(isset($childItems[$story->id]))
             {
-                if($type == 'story')       $story->URS = $relations[$story->id]->count;
-                if($type == 'requirement') $story->SRS = $relations[$story->id]->count;
+                $story->childItem      = $childItems[$story->id]['finished'] . ' / ' . $childItems[$story->id]['total'];
+                $story->childItemTitle = $childItems[$story->id]['title'];
+            }
+
+            $story->originParent = $story->parent;
+
+            $story->parent = array();
+            foreach(explode(',', trim((string)$story->path, ',')) as $parentID)
+            {
+                if(!$parentID) continue;
+                if($parentID == $story->id) continue;
+                $story->parent[] = (int)$parentID;
             }
         }
 
@@ -406,13 +383,51 @@ class storyTao extends storyModel
     {
         $parent = array_map(function($story)
         {
-            if($story->parent == '-1') return $story->id;
-            if($story->parent > '0')   return $story->parent;
+            if($story->parent > '0') return $story->parent;
             return false;
         }, $stories);
         return array_values(array_unique(array_filter($parent)));
     }
 
+    /**
+     * 获取需求的子项，统计已完成/总数。
+     * Get child items of stories, and count the finished/total.
+     *
+     * @param  array     $stories
+     * @access protected
+     * @return array
+     */
+    protected function getChildItems(array $stories): array
+    {
+        $childItems = array();
+
+        $childStories = $this->dao->select('id, parent, status')->from(TABLE_STORY)
+            ->where('parent')->in(array_keys($stories))
+            ->andWhere('deleted')->eq(0)
+            ->fetchGroup('parent');
+
+        foreach($childStories as $parentID => $childStory)
+        {
+            $childItems[$parentID]['total']    = count($childStory);
+            $childItems[$parentID]['finished'] = count(array_filter($childStory, function($story){return $story->status == 'closed';}));
+            $childItems[$parentID]['title']    = sprintf($this->lang->story->childStoryTitle, $childItems[$parentID]['total'], $childItems[$parentID]['finished']);
+        }
+
+        $childTasks = $this->dao->select('id, story, status')->from(TABLE_TASK)
+            ->where('story')->in(array_keys($stories))
+            ->andWhere('deleted')->eq(0)
+            ->fetchGroup('story');
+
+        foreach($childTasks as $parentID => $childTask)
+        {
+            $childItems[$parentID]['total']    = count($childTask);
+            $childItems[$parentID]['finished'] = count(array_filter($childTask, function($task){return in_array($task->status, array('done', 'closed', 'cancel'));}));
+            $childItems[$parentID]['title']    = sprintf($this->lang->story->childTaskTitle, $childItems[$parentID]['total'], $childItems[$parentID]['finished']);
+        }
+
+        return $childItems;
+    }
+
     /**
      * 通过搜索条件获取关联执行的需求。
      * Get execution stories by search.
@@ -422,12 +437,13 @@ class storyTao extends storyModel
      * @param  int         $productID
      * @param  string      $orderBy
      * @param  string      $storyType
+     * @param  string      $sqlCondition
      * @param  array       $excludeStories
      * @param  object|null $pager
      * @access protected
      * @return array
      */
-    protected function getExecutionStoriesBySearch(int $executionID, int $queryID, int $productID, string $orderBy, string $storyType = 'story', array $excludeStories = array(), object|null $pager = null): array
+    protected function getExecutionStoriesBySearch(int $executionID, int $queryID, int $productID, string $orderBy, string $storyType = 'story', string $sqlCondition = '', array $excludeStories = array(), object|null $pager = null): array
     {
         /* 获取查询条件。 */
         $rawModule = $this->app->rawModule;
@@ -439,6 +455,7 @@ class storyTao extends storyModel
         $storyQuery = $this->replaceAllProductQuery($this->session->executionStoryQuery);
         $storyQuery = $this->replaceRevertQuery($storyQuery, $productID);
         $storyQuery = preg_replace('/`(\w+)`/', 't2.`$1`', $storyQuery);
+        $storyQuery = preg_replace_callback("/t2.`grade` (=|!=) '(\w+)(\d+)'/", function($matches){return "t2.`grade` {$matches[1]} '" . $matches[3] . "' AND t2.`type` = '" . $matches[2] . "'";}, $storyQuery);
         if(strpos($storyQuery, 'result') !== false) $storyQuery = str_replace('t2.`result`', 't4.`result`', $storyQuery);
 
         return $this->dao->select("distinct t1.*, t2.*, IF(t2.`pri` = 0, {$this->config->maxPriValue}, t2.`pri`) as priOrder, t3.type as productType, t2.version as version")->from(TABLE_PROJECTSTORY)->alias('t1')
@@ -449,7 +466,8 @@ class storyTao extends storyModel
             ->andWhere('t1.project')->eq($executionID)
             ->andWhere('t2.deleted')->eq(0)
             ->andWhere('t3.deleted')->eq(0)
-            ->andWhere('t2.type')->eq($storyType)
+            ->andWhere('t2.type')->in($storyType)
+            ->beginIF($sqlCondition)->andWhere($sqlCondition)->fi()
             ->beginIF($excludeStories)->andWhere('t2.id')->notIN($excludeStories)->fi()
             ->orderBy($orderBy)
             ->page($pager, 't2.id')
@@ -633,7 +651,10 @@ class storyTao extends storyModel
      */
     protected function getUnclosedStatusKeys(): array
     {
-        $unclosedStatus = $this->lang->story->statusList;
+        $moduleName = $this->app->rawModule;
+        if(!in_array($moduleName, array('story', 'epic', 'requirement'))) $moduleName = 'story';
+
+        $unclosedStatus = $this->lang->{$moduleName}->statusList;
         unset($unclosedStatus['closed']);
         return array_keys($unclosedStatus);
     }
@@ -686,10 +707,10 @@ class storyTao extends storyModel
      */
     protected function doCreateStory(object $story): int|false
     {
-        $this->dao->insert(TABLE_STORY)->data($story, 'spec,verify,reviewer,URS,region,lane,branches,plans,modules,uploadImage')
+        $this->dao->insert(TABLE_STORY)->data($story, 'spec,verify,reviewer,region,lane,branches,plans,modules,uploadImage')
             ->autoCheck()
             ->checkIF(!empty($story->notifyEmail), 'notifyEmail', 'email')
-            ->batchCheck($this->config->story->create->requiredFields, 'notempty')
+            ->batchCheck($this->config->{$story->type}->create->requiredFields, 'notempty')
             ->checkFlow()
             ->exec();
         if(dao::isError()) return false;
@@ -836,51 +857,71 @@ class storyTao extends storyModel
      *
      * @param  int       $storyID
      * @param  object    $story
-     * @param  int       $oldStoryParent
+     * @param  object    $oldStory
      * @access protected
      * @return void
      */
-    protected function doChangeParent(int $storyID, object $story, int $oldStoryParent)
+    protected function doChangeParent(int $storyID, object $story, object $oldStory)
     {
         $this->loadModel('action');
-        $this->updateStoryProduct($storyID, $story->product);
-        if($oldStoryParent == '-1')
+        if($oldStory->parent > 0)
         {
-            $childStories = $this->dao->select('id')->from(TABLE_STORY)->where('parent')->eq($storyID)->andWhere('deleted')->eq(0)->fetchPairs('id');
-            foreach($childStories as $childStoryID) $this->updateStoryProduct($childStoryID, $story->product);
-        }
+            $oldParentStory = $this->dao->select('*')->from(TABLE_STORY)->where('id')->eq($oldStory->parent)->fetch();
+            $oldChildren    = $this->dao->select('id')->from(TABLE_STORY)->where('parent')->eq($oldStory->parent)->andWhere('deleted')->eq(0)->fetchPairs('id', 'id');
+            if(empty($oldChildren))
+            {
+                $this->dao->update(TABLE_STORY)
+                     ->set('isParent')->eq('0')
+                     ->beginIF($oldParentStory->type == 'story')->set('stage')->eq('wait')->fi()
+                     ->where('id')->eq($oldStory->parent)
+                     ->exec();
+            }
+            $newParentStory = $this->dao->select('*')->from(TABLE_STORY)->where('id')->eq($oldStory->parent)->fetch();
 
-        if($oldStoryParent > 0)
-        {
-            $oldParentStory = $this->dao->select('*')->from(TABLE_STORY)->where('id')->eq($oldStoryParent)->fetch();
-            $oldChildren    = $this->dao->select('id')->from(TABLE_STORY)->where('parent')->eq($oldStoryParent)->andWhere('deleted')->eq(0)->fetchPairs('id', 'id');
-            $newParentStory = $this->dao->select('*')->from(TABLE_STORY)->where('id')->eq($oldStoryParent)->fetch();
-            if(empty($oldChildren)) $this->dao->update(TABLE_STORY)->set('parent')->eq(0)->where('id')->eq($oldStoryParent)->exec();
-            $this->dao->update(TABLE_STORY)->set('childStories')->eq(implode(',', $oldChildren))->set('lastEditedBy')->eq($this->app->user->account)->set('lastEditedDate')->eq(helper::now())->where('id')->eq($oldStoryParent)->exec();
-
-            $this->action->create('story', $storyID, 'unlinkParentStory', '', $oldStoryParent, '', false);
-            $actionID = $this->action->create('story', $oldStoryParent, 'unLinkChildrenStory', '', $storyID, '', false);
+            $this->action->create('story', $storyID, 'unlinkParentStory', '', $oldStory->parent, '', false);
+            $actionID = $this->action->create('story', $oldStory->parent, 'unLinkChildrenStory', '', $storyID, '', false);
             $changes  = common::createChanges($oldParentStory, $newParentStory);
             if(!empty($changes)) $this->action->logHistory($actionID, $changes);
+            $this->updateLane($oldParentStory->id, $oldParentStory->type);
         }
 
         if($story->parent > 0)
         {
-            $parentStory    = $this->dao->select('*')->from(TABLE_STORY)->where('id')->eq($story->parent)->fetch();
-            $children       = $this->dao->select('id')->from(TABLE_STORY)->where('parent')->eq($story->parent)->andWhere('deleted')->eq(0)->fetchPairs('id', 'id');
-            $newParentStory = $this->dao->select('*')->from(TABLE_STORY)->where('id')->eq($story->parent)->fetch();
-            $this->dao->update(TABLE_STORY)->set('parent')->eq('-1')
-                ->set('childStories')->eq(implode(',', $children))
+            $parentStory = $this->dao->select('*')->from(TABLE_STORY)->where('id')->eq($story->parent)->fetch();
+            $newRoot     = $parentStory->root;
+            $story->path = rtrim($parentStory->path, ',') . ',' . $storyID . ',';
+
+            $this->dao->update(TABLE_STORY)->set('parentVersion')->eq($parentStory->version)->where('id')->eq($storyID)->exec();
+            $this->dao->update(TABLE_STORY)
+                ->set('isParent')->eq('1')
                 ->set('lastEditedBy')->eq($this->app->user->account)
                 ->set('lastEditedDate')->eq(helper::now())
                 ->where('id')->eq($story->parent)
                 ->exec();
+            $newParentStory = $this->dao->select('*')->from(TABLE_STORY)->where('id')->eq($story->parent)->fetch();
 
             $this->action->create('story', $storyID, 'linkParentStory', '', $story->parent, '', false);
             $actionID = $this->action->create('story', $story->parent, 'linkChildStory', '', $storyID, '', false);
             $changes  = common::createChanges($parentStory, $newParentStory);
             if(!empty($changes)) $this->action->logHistory($actionID, $changes);
+            $this->updateLane($parentStory->id, $parentStory->type);
         }
+        else
+        {
+            $newRoot     = $storyID;
+            $story->path = ",{$storyID},";
+        }
+
+        $childIdList = $this->getAllChildId($storyID, false);
+        $children    = $this->getByList($childIdList);
+        foreach($children as $child)
+        {
+            $newChildPath = str_replace($oldStory->path, $story->path, $child->path);
+            $this->dao->update(TABLE_STORY)->set('path')->eq($newChildPath)->where('id')->eq($child->id)->exec();
+        }
+
+        if($childIdList) $this->dao->update(TABLE_STORY)->set('root')->eq($newRoot)->where('id')->in($childIdList)->exec();
+        $this->dao->update(TABLE_STORY)->set('root')->eq($newRoot)->set('path')->eq($story->path)->where('id')->eq($storyID)->exec();
     }
 
     /**
@@ -894,6 +935,7 @@ class storyTao extends storyModel
      */
     protected function doUpdateLinkStories(int $storyID, object $story, object $oldStory)
     {
+        if($oldStory->type == 'epic') return;
         $linkStoryField = $oldStory->type == 'story' ? 'linkStories' : 'linkRequirements';
         $linkStories    = explode(',', $story->{$linkStoryField});
         $oldLinkStories = explode(',', $oldStory->{$linkStoryField});
@@ -918,53 +960,6 @@ class storyTao extends storyModel
         }
     }
 
-    /**
-     * 创建用户需求和软件需求的关联关系。
-     * Do create UR and SR relations.
-     *
-     * @param  int       $storyID
-     * @param  array     $URList
-     * @access protected
-     * @return void
-     */
-    protected function doCreateURRelations(int $storyID, array $URList): void
-    {
-        if(empty($storyID) || empty($URList)) return;
-
-        $requirements = $this->getByList($URList);
-        $data         = new stdclass();
-        foreach($URList as $URID)
-        {
-            if(!isset($requirements[$URID])) continue;
-
-            $requirement = $requirements[$URID];
-            if($requirement->type != 'requirement') continue;
-
-            $requirement    = $requirements[$URID];
-            $data->product  = $requirement->product;
-            $data->AType    = 'requirement';
-            $data->BType    = 'story';
-            $data->relation = 'subdivideinto';
-            $data->AID      = $URID;
-            $data->BID      = $storyID;
-            $data->AVersion = $requirement->version;
-            $data->BVersion = 1;
-            $data->extra    = 1;
-
-            $this->dao->replace(TABLE_RELATION)->data($data)->autoCheck()->exec();
-
-            $data->AType    = 'story';
-            $data->BType    = 'requirement';
-            $data->relation = 'subdividedfrom';
-            $data->AID      = $storyID;
-            $data->BID      = $URID;
-            $data->AVersion = 1;
-            $data->BVersion = $requirement->version;
-
-            $this->dao->replace(TABLE_RELATION)->data($data)->autoCheck()->exec();
-        }
-    }
-
     /**
      * 在创建需求的时候，将需求关联到项目或执行。
      * Link to execution for create story.
@@ -1130,11 +1125,32 @@ class storyTao extends storyModel
     protected function checkCanSubdivide($story, $isShadowProduct): bool
     {
         if($this->config->vision == 'lite') return true;
+        if($story->type != 'story') return true;
 
-        if(in_array($story->status, array('launched', 'developing', 'active')))     return true;
-        if(!$isShadowProduct && $story->type == 'story' && $story->stage != 'wait') return false;
-        if($isShadowProduct && $story->stage != 'projected')                        return false;
-        if($story->parent > 0)                                                      return false;
+        if(!in_array($story->status, array('launched', 'developing', 'active'))) return false;
+        if($story->isParent == '1') return true;
+        if(!$isShadowProduct && !in_array($story->stage, array('wait', 'planned', 'projected'))) return false;
+        if($isShadowProduct && $story->stage != 'projected') return false;
+
+        return true;
+    }
+
+    /**
+     * Check whether a story can be split.
+     *
+     * @param  object    $story
+     * @access protected
+     * @return bool
+     */
+    protected function checkCanSplit($story): bool
+    {
+        $sameTypeChild = $this->dao->select('id')->from(TABLE_STORY)
+             ->where('parent')->eq($story->id)
+             ->andWhere('type')->eq($story->type)
+             ->andWhere('deleted')->eq(0)
+             ->fetch('id');
+
+        if($sameTypeChild) return false;
 
         return true;
     }
@@ -1227,7 +1243,9 @@ class storyTao extends storyModel
         {
             if(!empty($branchID)) $this->dao->replace(TABLE_STORYSTAGE)->set('story')->eq($storyID)->set('branch')->eq((int)$branchID)->set('stage')->eq('closed')->exec();
         }
+
         if($story->stage != 'closed') $this->updateLinkedLane($storyID, $linkedProjects);
+        if($story->parent > 0) $this->computeParentStage($story);
         return true;
     }
 
@@ -1244,10 +1262,14 @@ class storyTao extends storyModel
      */
     protected function updateStage(int $storyID, array $stages, array $oldStages = array(), array $linkedProjects = array()): bool
     {
-        if(empty($stages) && $oldStages) $stages = array_column($oldStages, 'stage', 'branch');
-        if(empty($stages)) return false;
-
         $story = $this->dao->findById($storyID)->from(TABLE_STORY)->fetch();
+        if(empty($stages) && $oldStages) $stages = array_column($oldStages, 'stage', 'branch');
+        if(empty($stages))
+        {
+            if($story->parent > 0) $this->computeParentStage($story);
+            return false;
+        }
+
         if(empty($story)) return false;
         $product = $this->dao->findById($story->product)->from(TABLE_PRODUCT)->fetch();
         if($product and $product->type != 'normal' and empty($story->branch))
@@ -1280,10 +1302,145 @@ class storyTao extends storyModel
             $this->dao->update(TABLE_STORY)->set('stage')->eq($stage)->where('id')->eq($storyID)->exec();
         }
 
-        if($story->stage != $stage) $this->updateLinkedLane($storyID, $linkedProjects);
+        if($story->stage != $stage)
+        {
+            $this->updateLinkedLane($storyID, $linkedProjects);
+            if($story->parent > 0) $this->computeParentStage($story);
+        }
         return true;
     }
 
+    /**
+     * 通过子需求更新父需求的阶段。
+     * 子需求阶段范围：未开始、已计划、已立项、设计中、设计完毕、研发中、研发完毕、测试中、测试完毕、已验收、验收失败、待发布、已发布、已关闭。
+     * 父需求阶段范围：定义中、规划中、研发中、交付中、已关闭。
+     *
+     * 父需求阶段由子需求阶段决定，规则如下：
+     * 1. 定义中:
+     *   排除已关闭（关闭原因不是已完成）后，所有子需求阶段仅为定义中、未开始。
+     * 2. 规划中:
+     *   排除已关闭（关闭原因不是已完成）后，至少有一个子级需求为规划中、已立项、已计划， 其他子需求阶段仅为定义中、未开始。
+     * 3. 研发中:
+     *   排除已关闭（关闭原因不是已完成）后，至少有一个子级需求为设计中、设计完毕、研发中、研发完毕、测试中、测试完毕、已验收、验收失败， 其他子需求阶段仅为未开始、规划中、已立项、已计划。
+     * 4. 交付中:
+     *   至少有一个子级需求为交付中、待发布、已发布；或者有一个子级需求为已关闭（关闭原因是已完成）。
+     * 5. 已关闭:
+     *   所有子需求都已关闭。
+     *
+     * Update parent stage by children.
+     * Parent stage is decided by children stage, the rules are as follows:
+     * 1. Defining:
+     *   All children stages are defining or wait, and no children stage is closed and closedReason is not done.
+     * 2. Planning:
+     *   At least one child stage is planning, planned or projected, and all other children stages are defining or wait, and no children stage is closed and closedReason is not done.
+     * 3. Developing:
+     *   At least one child stage is designing, designed, developing, developed, testing, tested, verified or rejected, and all other children stages are defining, planning, planned or projected, and no children stage is closed and closedReason is not done.
+     * 4. Delivering:
+     *   At least one child stage is delivering, pending or released, or at least one child stage is closed and closedReason is done.
+     * 5. Closed:
+     *   All children stages are closed.
+     *
+     * @param  object    $story
+     * @access protected
+     * @return void
+     */
+    protected function computeParentStage(object $story)
+    {
+        $parent = $this->dao->findById($story->parent)->from(TABLE_STORY)->fetch();
+        if(empty($parent)) return;
+
+        $children = $this->dao->select('id, stage, closedReason')->from(TABLE_STORY)
+            ->where('parent')->eq($story->parent)
+            ->andWhere('deleted')->eq(0)
+            ->fetchAll('id');
+
+        $allDefining = true;
+        $allClosed   = true;
+        foreach($children as $child)
+        {
+            if($child->stage == 'closed' && $child->closedReason != 'done') continue;
+            if(!in_array($child->stage, array('wait', 'defining'))) $allDefining = false;
+            if($child->stage != 'closed') $allClosed = false;
+        }
+
+        $parentStage = $parent->stage;
+        if($allClosed)
+        {
+            $parentStage = 'closed';
+        }
+        elseif($allDefining)
+        {
+            $parentStage = 'defining';
+        }
+        else
+        {
+            $hasPlanning = false;
+            $allClosedOrDefining = true;
+            foreach($children as $child)
+            {
+                /* Planning. */
+                if($child->stage == 'closed' && $child->closedReason != 'done') continue;
+                if(in_array($child->stage, array('planning', 'planned', 'projected')))
+                {
+                    $hasPlanning = true;
+                }
+                elseif(!in_array($child->stage, array('wait', 'defining')))
+                {
+                    $allClosedOrDefining = false;
+                }
+            }
+
+            if($hasPlanning && $allClosedOrDefining)
+            {
+                $parentStage = 'planning';
+            }
+            else
+            {
+                /* Developing. */
+                $hasDeveloping = false;
+                $allClosedOrDefiningOrPlanning = true;
+                foreach($children as $child)
+                {
+                    if($child->stage == 'closed' && $child->closedReason != 'done') continue;
+                    if(in_array($child->stage, array('designing', 'designed', 'developing', 'developed', 'testing', 'tested', 'verified', 'rejected')))
+                    {
+                        $hasDeveloping = true;
+                    }
+                    elseif(!in_array($child->stage, array('wait', 'defining', 'planning', 'planned', 'projected')))
+                    {
+                        $allClosedOrDefiningOrPlanning = false;
+                    }
+                }
+
+                if($hasDeveloping && $allClosedOrDefiningOrPlanning)
+                {
+                    $parentStage = 'developing';
+                }
+                else
+                {
+                    /* Delivering. */
+                    $hasDelivering = false;
+                    foreach($children as $child)
+                    {
+                        if(in_array($child->stage, array('delivering', 'pending', 'released')) || ($child->stage == 'closed' && $child->closedReason == 'done'))
+                        {
+                            $hasDelivering = true;
+                            break;
+                        }
+                    }
+
+                    if($hasDelivering) $parentStage = 'delivering';
+                }
+            }
+        }
+
+        if($parentStage != $parent->stage)
+        {
+            $this->dao->update(TABLE_STORY)->set('stage')->eq($parentStage)->where('id')->eq($parent->id)->exec();
+            if($parent->parent > 0) $this->computeParentStage($parent);
+        }
+    }
+
     /**
      * 根据计划和关联的项目的分支，获取默认的阶段值。
      * Get default stages by plans and linked branches.
@@ -1321,7 +1478,7 @@ class storyTao extends storyModel
     protected function getLinkedTaskStat(int $storyID, array $linkedProjects): array
     {
         $tasks = $this->dao->select('type,execution,status')->from(TABLE_TASK)->where('execution')->in(array_keys($linkedProjects))
-            ->andWhere('type')->in('devel,test')
+            ->andWhere('type')->in('devel,test,design')
             ->andWhere('story')->eq($storyID)
             ->andWhere('deleted')->eq(0)
             ->andWhere('status')->ne('cancel')
@@ -1330,9 +1487,10 @@ class storyTao extends storyModel
         if(empty($tasks)) return array();
 
         /* Cycle all tasks, get counts of every type and every status. */
-        $branchStatusList    = $branchDevelCount = $branchTestCount = array();
-        $statusList['devel'] = array('wait' => 0, 'doing' => 0, 'done' => 0, 'pause' => 0);
-        $statusList['test']  = array('wait' => 0, 'doing' => 0, 'done' => 0, 'pause' => 0);
+        $branchStatusList     = $branchDevelCount = $branchTestCount = $branchDesignCount = array();
+        $statusList['design'] = array('wait' => 0, 'doing' => 0, 'done' => 0, 'pause' => 0);
+        $statusList['devel']  = array('wait' => 0, 'doing' => 0, 'done' => 0, 'pause' => 0);
+        $statusList['test']   = array('wait' => 0, 'doing' => 0, 'done' => 0, 'pause' => 0);
         foreach($tasks as $type => $typeTasks)
         {
             if(!isset($statusList[$type])) continue;
@@ -1348,12 +1506,35 @@ class storyTao extends storyModel
                     if(!isset($branchStatusList[$branch])) $branchStatusList[$branch] = $statusList;
 
                     $branchStatusList[$branch][$type][$status] ++;
-                    if($type == 'devel') $branchDevelCount[$branch] = !isset($branchDevelCount[$branch]) ? 1 : ($branchDevelCount[$branch] + 1);
-                    if($type == 'test')  $branchTestCount[$branch]  = !isset($branchTestCount[$branch])  ? 1 : ($branchTestCount[$branch] + 1);
+                    if($type == 'devel')  $branchDevelCount[$branch]  = !isset($branchDevelCount[$branch])  ? 1 : ($branchDevelCount[$branch] + 1);
+                    if($type == 'test')   $branchTestCount[$branch]   = !isset($branchTestCount[$branch])   ? 1 : ($branchTestCount[$branch] + 1);
+                    if($type == 'design') $branchDesignCount[$branch] = !isset($branchDesignCount[$branch]) ? 1 : ($branchDesignCount[$branch] + 1);
                 }
             }
         }
-        return array($branchStatusList, $branchDevelCount, $branchTestCount);
+        return array($branchStatusList, $branchDevelCount, $branchTestCount, $branchDesignCount);
+    }
+
+    /**
+     * 更新关联的看板泳道卡片。
+     * Update linked lane.
+     *
+     * @param  int       $storyID
+     * @param  string    $storyType
+     * @access protected
+     * @return int
+     */
+    protected function updateLane(int $storyID, string $storyType)
+    {
+        $executionIdList = $this->dao->select('t1.project')->from(TABLE_PROJECTSTORY)->alias('t1')
+            ->leftJoin(TABLE_PROJECT)->alias('t2')->on('t1.project = t2.id')
+            ->where('t1.story')->eq($storyID)
+            ->andWhere('t2.deleted')->eq(0)
+            ->andWhere('t2.type')->in('sprint,stage,kanban')
+            ->fetchPairs('project', 'project');
+
+        $this->loadModel('kanban');
+        foreach($executionIdList as $executionID) $this->kanban->updateLane($executionID, $storyType, $storyID);
     }
 
     /**
@@ -1400,14 +1581,18 @@ class storyTao extends storyModel
         }
 
         /* 根据任务状态统计信息，计算该需求所处的阶段。 */
-        list($branchStatusList, $branchDevelCount, $branchTestCount) = $taskStat;
+        list($branchStatusList, $branchDevelCount, $branchTestCount, $branchDesignCount) = $taskStat;
         foreach($branchStatusList as $branch => $statusList)
         {
             $branch     = (int)$branch;
             $stage      = 'projected';
-            $testCount  = isset($branchTestCount[$branch])  ? $branchTestCount[$branch]  : 0;
-            $develCount = isset($branchDevelCount[$branch]) ? $branchDevelCount[$branch] : 0;
+            $desginCount = isset($branchDesignCount[$branch])  ? $branchDesignCount[$branch]  : 0;
+            $testCount   = isset($branchTestCount[$branch])  ? $branchTestCount[$branch]  : 0;
+            $develCount  = isset($branchDevelCount[$branch]) ? $branchDevelCount[$branch] : 0;
 
+            $doingDesignTask  = $statusList['design']['wait'] < $desginCount && $statusList['design']['done'] < $desginCount && $desginCount > 0;
+            $doneDesignTask   = $statusList['design']['done'] == $desginCount && $desginCount > 0;
+            $notStartDevTask  = $statusList['devel']['wait'] == $develCount;
             $doingDevelTask   = $statusList['devel']['wait'] < $develCount && $statusList['devel']['done'] < $develCount && $develCount > 0;
             $doneDevelTask    = $statusList['devel']['done'] == $develCount && $develCount > 0;
             $notStartTestTask = $statusList['test']['wait'] == $testCount;
@@ -1416,13 +1601,15 @@ class storyTao extends storyModel
             $hasDoingTestTask = $statusList['test']['doing'] > 0 || $statusList['test']['pause'] > 0;
             $notDoingTestTask = $statusList['test']['doing'] == 0;
 
-            if($doingDevelTask && $notStartTestTask) $stage = 'developing'; //开发任务没有全部完成，测试任务没有开始，阶段为开发中。
-            if($doingDevelTask && $notDoingTestTask) $stage = 'developing'; //开发任务没有全部完成，没有测试中的测试任务，阶段为开发中。
-            if($doingDevelTask && $doneTestTask)     $stage = 'testing';    //开发任务没有全部完成，测试任务已经完成，阶段为测试中。
-            if($doneDevelTask  && $notStartTestTask) $stage = 'developed';  //开发任务已经完成，测试任务还没有开始，阶段为开发完成。
-            if($doneDevelTask  && $doingTestTask)    $stage = 'testing';    //开发任务已经完成，测试任务已经开始，阶段为测试中。
-            if($hasDoingTestTask)                    $stage = 'testing';    //有测试任务正在测试，阶段为测试中。
-            if($doneDevelTask && $doneTestTask)      $stage = 'tested';     //开发任务已经完成，测试任务已经完成，阶段为测试完成。
+            if($doingDesignTask && $notStartDevTask)  $stage = 'designing';  //设计任务没有全部完成，开发任务还没有开始，阶段为设计中。
+            if($doneDesignTask  && $notStartDevTask)  $stage = 'designed';   //设计任务全部完成，开发任务还没有开始，阶段为设计完成。
+            if($doingDevelTask  && $notStartTestTask) $stage = 'developing'; //开发任务没有全部完成，测试任务没有开始，阶段为开发中。
+            if($doingDevelTask  && $notDoingTestTask) $stage = 'developing'; //开发任务没有全部完成，没有测试中的测试任务，阶段为开发中。
+            if($doingDevelTask  && $doneTestTask)     $stage = 'testing';    //开发任务没有全部完成，测试任务已经完成，阶段为测试中。
+            if($doneDevelTask   && $notStartTestTask) $stage = 'developed';  //开发任务已经完成，测试任务还没有开始，阶段为开发完成。
+            if($doneDevelTask   && $doingTestTask)    $stage = 'testing';    //开发任务已经完成，测试任务已经开始，阶段为测试中。
+            if($hasDoingTestTask)                     $stage = 'testing';    //有测试任务正在测试，阶段为测试中。
+            if($doneDevelTask && $doneTestTask)       $stage = 'tested';     //开发任务已经完成，测试任务已经完成，阶段为测试完成。
 
             $stages[(int)$branch] = $stage;
         }
@@ -1508,7 +1695,7 @@ class storyTao extends storyModel
         if(!isset($this->config->story->affect)) $this->config->story->affect = new stdclass();
         $this->config->story->affect->bugs = new stdclass();
         $this->config->story->affect->bugs->fields[] = array('name' => 'id',           'title' => $this->lang->idAB);
-        $this->config->story->affect->bugs->fields[] = array('name' => 'title',        'title' => $this->lang->bug->title, 'link' => $this->config->vision != 'or' ? helper::createLink('bug', 'view', 'id={id}') : '', 'type' => 'title', 'fixed' => false, 'sortType' => false, 'flex' => false);
+        $this->config->story->affect->bugs->fields[] = array('name' => 'title',        'title' => $this->lang->bug->title, 'link' => $this->config->vision != 'or' ? helper::createLink('bug', 'view', 'id={id}') : '', 'data-toggle' => 'modal', 'data-size' => 'lg', 'fixed' => false, 'sortType' => false, 'flex' => false);
         $this->config->story->affect->bugs->fields[] = array('name' => 'status',       'title' => $this->lang->statusAB);
         $this->config->story->affect->bugs->fields[] = array('name' => 'openedBy',     'title' => $this->lang->bug->openedBy);
         $this->config->story->affect->bugs->fields[] = array('name' => 'resolvedBy',   'title' => $this->lang->bug->resolvedBy);
@@ -1516,7 +1703,7 @@ class storyTao extends storyModel
         $this->config->story->affect->bugs->fields[] = array('name' => 'lastEditedBy', 'title' => $this->lang->bug->lastEditedBy);
 
         /* Get affected bugs. */
-        $storyIdList = $story->id . ($story->relationStoryID ? ',' . trim($story->relationStoryID, ',') : '') . ($story->twins ? ',' . trim($story->twins, ',') : '');
+        $storyIdList = $story->id . ($story->twins ? ',' . trim($story->twins, ',') : '');
         $story->bugs = $this->dao->select('*')->from(TABLE_BUG)->where('status')->ne('closed')
             ->andWhere('story')->in($storyIdList)
             ->andWhere('status')->ne('closed')
@@ -1550,13 +1737,13 @@ class storyTao extends storyModel
         if(!isset($this->config->story->affect)) $this->config->story->affect = new stdclass();
         $this->config->story->affect->cases = new stdclass();
         $this->config->story->affect->cases->fields[] = array('name' => 'id',           'title' => $this->lang->idAB);
-        $this->config->story->affect->cases->fields[] = array('name' => 'title',        'title' => $this->lang->testcase->title, 'link' => $this->config->vision != 'or' ? helper::createLink('testcase', 'view', 'id={id}') : '', 'type' => 'title', 'fixed' => false, 'sortType' => false, 'flex' => false);
+        $this->config->story->affect->cases->fields[] = array('name' => 'title',        'title' => $this->lang->testcase->title, 'link' => $this->config->vision != 'or' ? helper::createLink('testcase', 'view', 'id={id}') : '', 'data-toggle' => 'modal', 'data-size' => 'lg', 'fixed' => false, 'sortType' => false, 'flex' => false);
         $this->config->story->affect->cases->fields[] = array('name' => 'status',       'title' => $this->lang->statusAB);
         $this->config->story->affect->cases->fields[] = array('name' => 'openedBy',     'title' => $this->lang->testcase->openedBy);
         $this->config->story->affect->cases->fields[] = array('name' => 'lastEditedBy', 'title' => $this->lang->testcase->lastEditedBy);
 
         /* Get affected cases. */
-        $storyIdList  = $story->id . ($story->relationStoryID ? ',' . trim($story->relationStoryID, ',') : '') . ($story->twins ? ',' . trim($story->twins, ',') : '');
+        $storyIdList  = $story->id . ($story->twins ? ',' . trim($story->twins, ',') : '');
         $story->cases = $this->dao->select('*')->from(TABLE_CASE)->where('deleted')->eq(0)
             ->andWhere('story')->in($storyIdList)
             ->fetchAll();
@@ -1570,6 +1757,36 @@ class storyTao extends storyModel
         return $story;
     }
 
+    /**
+     * 获取该需求影响的子需求。
+     * Get affected children for this story.
+     *
+     * @param  object    $story
+     * @param  array     $users
+     * @access protected
+     * @return object
+     */
+    protected function getAffectedChildren(object $story, array $users): object
+    {
+        $storyType = $story->type;
+        foreach($story->children as $child)
+        {
+            $child->status   = $this->processStatus('story', $child);
+            $child->openedBy = zget($users, $child->openedBy);
+            $storyType       = $child->type;
+        }
+
+        if(!isset($this->config->story->affect)) $this->config->story->affect = new stdclass();
+        $this->config->story->affect->children = new stdclass();
+        $this->config->story->affect->children->fields[] = array('name' => 'id',       'title' => $this->lang->idAB, 'type' => 'id', 'sortType' => false);
+        $this->config->story->affect->children->fields[] = array('name' => 'title',    'title' => $this->lang->story->name, 'link' => helper::createLink($storyType, 'view', 'id={id}'), 'type' => 'title', 'sortType' => false, 'data-toggle' => 'modal', 'data-size' => 'lg');
+        $this->config->story->affect->children->fields[] = array('name' => 'pri',      'title' => $this->lang->priAB, 'type' => 'pri', 'sortType' => false);
+        $this->config->story->affect->children->fields[] = array('name' => 'status',   'title' => $this->lang->story->status, 'type' => 'status', 'sortType' => false);
+        $this->config->story->affect->children->fields[] = array('name' => 'openedBy', 'title' => $this->lang->story->openedBy, 'type' => 'user', 'sortType' => false);
+
+        return $story;
+    }
+
     /**
      * 获取该需求影响的孪生需求。
      * Get affected twins for this story.
@@ -1587,7 +1804,7 @@ class storyTao extends storyModel
         $this->config->story->affect->twins = new stdclass();
         $this->config->story->affect->twins->fields[] = array('name' => 'id',           'title' => $this->lang->idAB);
         $this->config->story->affect->twins->fields[] = array('name' => 'branch',       'title' => $this->lang->story->branch);
-        $this->config->story->affect->twins->fields[] = array('name' => 'title',        'title' => $this->lang->story->title, 'link' => $this->config->vision != 'or' ? helper::createLink('story', 'view', 'id={id}') : '', 'type' => 'title', 'fixed' => false, 'sortType' => false, 'flex' => false);
+        $this->config->story->affect->twins->fields[] = array('name' => 'title',        'title' => $this->lang->story->title, 'link' => $this->config->vision != 'or' ? helper::createLink('story', 'view', 'id={id}') : '', 'data-toggle' => 'modal', 'data-size' => 'lg', 'fixed' => false, 'sortType' => false, 'flex' => false);
         $this->config->story->affect->twins->fields[] = array('name' => 'status',       'title' => $this->lang->statusAB);
         $this->config->story->affect->twins->fields[] = array('name' => 'stage',        'title' => $this->lang->story->stageAB);
         $this->config->story->affect->twins->fields[] = array('name' => 'openedBy',     'title' => $this->lang->story->openedBy);
@@ -1615,10 +1832,11 @@ class storyTao extends storyModel
      * @param  string    $params
      * @param  string    $storyType story|requirement
      * @param  object    $execution
+     * @param  array     $maxGradeGroup
      * @access protected
      * @return array
      */
-    protected function buildBrowseActionBtnList(object $story, string $params = '', string $storyType = 'story', object $execution = null): array
+    protected function buildBrowseActionBtnList(object $story, string $params = '', string $storyType = 'story', object $execution = null, array $maxGradeGroup = array()): array
     {
         global $lang;
 
@@ -1634,15 +1852,6 @@ class storyTao extends storyModel
             }
         }
 
-        if($storyType == 'requirement')
-        {
-            $this->lang->story->changeTip                = str_replace($this->lang->SRCommon, $this->lang->URCommon, $this->lang->story->changeTip);
-            $this->lang->story->reviewTip['active']      = str_replace($this->lang->SRCommon, $this->lang->URCommon, $this->lang->story->reviewTip['active']);
-            $this->lang->story->reviewTip['notReviewer'] = str_replace($this->lang->SRCommon, $this->lang->URCommon, $this->lang->story->reviewTip['notReviewer']);
-            $this->lang->story->recallTip['actived']     = str_replace($this->lang->SRCommon, $this->lang->URCommon, $this->lang->story->recallTip['actived']);
-            $this->lang->story->subDivideTip['notWait']  = str_replace($this->lang->SRCommon, $this->lang->URCommon, $this->lang->story->subDivideTip['notWait']);
-        }
-
         static $taskGroups = array();
 
         $actSubmitreview = array();
@@ -1652,36 +1861,36 @@ class storyTao extends storyModel
         $executionID     = empty($execution) ? 0 : $execution->id;
         if(!isset($story->from)) $story->from = '';
 
-        $closeLink              = helper::createLink('story', 'close', $params . "&from=&storyType=$story->type");
-        $processStoryChangeLink = helper::createLink('story', 'processStoryChange', $params);
-        $changeLink             = helper::createLink('story', 'change', $params . "&from=$story->from&storyType=$story->type");
-        $submitReviewLink       = helper::createLink('story', 'submitReview', "storyID=$story->id&storyType=$story->type");
-        $reviewLink             = helper::createLink('story', 'review', $params . "&from=$story->from&storyType=$story->type") . ($this->app->tab == 'project' ? '#app=project' : '');
-        $recallLink             = helper::createLink('story', 'recall', $params . "&from=list&confirm=no&storyType=$story->type");
-        $batchCreateStoryLink   = helper::createLink('story', 'batchCreate', "productID=$story->product&branch=$story->branch&module=$story->module&$params&executionID=$executionID&plan=0&storyType=story");
-        $editLink               = helper::createLink('story', 'edit', $params . "&kanbanGroup=default&storyType=$story->type") . ($this->app->tab == 'project' ? '#app=project' : '');
-        $createCaseLink         = helper::createLink('testcase', 'create', "productID=$story->product&branch=$story->branch&module=0&from=&param=0&$params");
+        $closeLink               = helper::createLink($story->type, 'close', $params . "&from=$story->from");
+        $processStoryChangeLink  = helper::createLink('story', 'processStoryChange', $params);
+        $changeLink              = helper::createLink($story->type, 'change', $params . "&from=$story->from");
+        $submitReviewLink        = helper::createLink($story->type, 'submitReview', "storyID=$story->id");
+        $reviewLink              = helper::createLink($story->type, 'review', $params . "&from=$story->from") . ($this->app->tab == 'project' ? '#app=project' : '');
+        $recallLink              = helper::createLink($story->type, 'recall', $params . "&from=list&confirm=no");
+        $batchCreateStoryLink    = helper::createLink($story->type, 'batchCreate', "productID=$story->product&branch=$story->branch&module=$story->module&$params&executionID=$executionID&plan=0");
+        $editLink                = helper::createLink($story->type, 'edit', $params . "&kanbanGroup=default") . ($this->app->tab == 'project' ? '#app=project' : '');
+        $createCaseLink          = helper::createLink('testcase', 'create', "productID=$story->product&branch=$story->branch&module=0&from=&param=0&$params");
 
         /* If the story cannot be changed, render the close button. */
-        $canClose = common::hasPriv('story', 'close') && $this->isClickable($story, 'close');
-        if(!common::canBeChanged('story', $story)) return array(array('name' => 'close', 'hint' => $lang->close, 'data-toggle' => 'modal', 'url' => $canClose ? $closeLink : null, 'disabled' => !$canClose));
-        $canProcess = common::hasPriv('story', 'processStoryChange');
-        if($story->URChanged) return array(array('name' => 'processStoryChange', 'data-toggle' => 'modal', 'url' => $canProcess ? $processStoryChangeLink : null, 'disabled' => !$canProcess));
+        $canClose = common::hasPriv($story->type, 'close') && $this->isClickable($story, 'close');
+        if(!common::canBeChanged($story->type, $story)) return array(array('name' => 'close', 'hint' => $lang->close, 'data-toggle' => 'modal', 'url' => $canClose ? $closeLink : null, 'disabled' => !$canClose));
+        $canProcessChange = common::hasPriv('story', 'processStoryChange');
+        if(!empty($story->parentChanged)) return array(array('name' => 'processStoryChange', 'url' => $canProcessChange ? $processStoryChangeLink : null, 'disabled' => !$canProcessChange, 'innerClass' => 'ajax-submit'));
 
         /* Change button. */
-        $canChange = common::hasPriv('story', 'change') && $this->isClickable($story, 'change');
+        $canChange = common::hasPriv($story->type, 'change') && $this->isClickable($story, 'change');
         $title     = $canChange ? $lang->story->change : $this->lang->story->changeTip;
         $actions[] = array('name' => 'change', 'url' => $canChange ? $changeLink : null, 'hint' => $title, 'disabled' => !$canChange);
 
         /* Submitreview, review, recall buttons. */
         if(strpos('draft,changing', $story->status) !== false)
         {
-            $canSubmitReview = common::hasPriv('story', 'submitReview');
+            $canSubmitReview = common::hasPriv($story->type, 'submitReview');
             $actSubmitreview = array('name' => 'submitreview', 'data-toggle' => 'modal', 'url' => $canSubmitReview ? $submitReviewLink : null);
         }
         else
         {
-            $canReview = common::hasPriv('story', 'review') && $this->isClickable($story, 'review');
+            $canReview = common::hasPriv($story->type, 'review') && $this->isClickable($story, 'review');
             $title     = $this->lang->story->review;
             if(!$canReview && $story->status != 'closed')
             {
@@ -1730,30 +1939,49 @@ class storyTao extends storyModel
         $actions[] = array('name' => 'divider', 'type'=>'divider');
 
         /* Edit button. */
-        $canEdit = common::hasPriv('story', 'edit') && $this->isClickable($story, 'edit');
+        $canEdit = common::hasPriv($story->type, 'edit') && $this->isClickable($story, 'edit');
         $actions[] = array('name' => 'edit', 'url' => $this->isClickable($story, 'edit') ? $editLink : null, 'disabled' => !$canEdit);
 
         /* Create test case button. */
-        if($story->type != 'requirement' && $this->config->vision != 'lite') $actions[] = array('name' => 'testcase', 'url' => common::hasPriv('testcase', 'create') && $story->parent >= 0 ? $createCaseLink : null, 'disabled' => $story->parent < 0 || !common::hasPriv('testcase', 'create'), 'data-toggle' => 'modal', 'data-size' => 'lg');
+        if($story->type == 'story' && $this->config->vision != 'lite') $actions[] = array('name' => 'testcase', 'url' => common::hasPriv('testcase', 'create') && $story->parent >= 0 ? $createCaseLink : null, 'disabled' => $story->parent < 0 || !common::hasPriv('testcase', 'create'), 'data-toggle' => 'modal', 'data-size' => 'lg');
 
         /* Batch create button. */
         $shadow = $this->dao->findByID($story->product)->from(TABLE_PRODUCT)->fetch('shadow');
-        $canBatchCreateStory = $this->isClickable($story, 'batchcreate');
-        if($this->app->rawModule != 'projectstory' || $story->type == 'requirement' || $this->config->vision == 'lite' || $shadow)
+
+        $canBatchCreateStory = common::hasPriv($story->type, 'batchcreate') && $this->isClickable($story, 'batchcreate') && $story->grade < $maxGradeGroup[$story->type] && empty($story->hasOtherTypeChild);
+        if(!($this->app->rawModule == 'projectstory' && $this->app->rawMethod == 'story') || $this->config->vision == 'lite' || $shadow)
         {
             if($shadow and empty($taskGroups[$story->id])) $taskGroups[$story->id] = $this->dao->select('id')->from(TABLE_TASK)->where('story')->eq($story->id)->fetch('id');
 
-            $title = $story->type == 'story' ? $this->lang->story->subdivideSR : $this->lang->story->subdivide;
-            if(!$canBatchCreateStory && $story->status != 'closed')
+            /*
+             * 需求的拆分按钮分为两种情况：
+             *   1.拆分成相同类型的子需求。
+             *   2.拆分成其他类型的子需求。
+             * 这两种情况是互斥的，拆分了一种类型的需求后，另一种类型的需求就不能再拆分了。
+             * 默认拆分相同类型的需求，如果不能拆分相同类型的需求，则拆分其他类型的需求。
+             */
+            if($canBatchCreateStory)
             {
-                if(!in_array($story->status, array('active', 'launched', 'developing'))) $title = sprintf($this->lang->story->subDivideTip['notActive'], $story->type == 'story' ? $this->lang->SRCommon : $this->lang->URCommon);
+                $actions[] = array('name' => 'batchCreate', 'url' => $batchCreateStoryLink, 'hint' => $this->lang->story->split, 'icon' => 'split');
+            }
+            elseif($story->type == 'epic' && common::hasPriv('requirement', 'batchCreate') && $this->isClickable($story, 'batchcreate') && empty($story->hasSameTypeChild) && !($this->config->epic->gradeRule == 'stepwise' && $story->grade < $maxGradeGroup['epic']))
+            {
+                $actions[] = array('name' => 'batchCreate', 'url' => helper::createLink('requirement', 'batchCreate', "productID=$story->product&branch=$story->branch&module=$story->module&$params&executionID=$executionID&plan=0"), 'hint' => $this->lang->story->split, 'icon' => 'split');
+            }
+            elseif($story->type == 'requirement' && common::hasPriv('story', 'batchCreate') && $this->isClickable($story, 'batchcreate') && empty($story->hasSameTypeChild) && !($this->config->requirement->gradeRule == 'stepwise' && $story->grade < $maxGradeGroup['requirement']))
+            {
+                $actions[] = array('name' => 'batchCreate', 'url' => helper::createLink('story', 'batchCreate', "productID=$story->product&branch=$story->branch&module=$story->module&$params&executionID=$executionID&plan=0"), 'hint' => $this->lang->story->split, 'icon' => 'split');
+            }
+            elseif(!$canBatchCreateStory && $story->status != 'closed' && common::hasPriv($story->type, 'batchcreate'))
+            {
+                $title = $this->lang->story->split;
+                if($story->status != 'active') $title = $this->lang->story->subDivideTip['notActive'];
                 if($story->status == 'active' && $story->stage != 'wait') $title = sprintf($this->lang->story->subDivideTip['notWait'], zget($this->lang->story->stageList, $story->stage));
                 if(!empty($story->twins)) $title = $this->lang->story->subDivideTip['twinsSplit'];
-                if($story->parent > 0)    $title = $this->lang->story->subDivideTip['subStory'];
                 if($story->status == 'active' and !empty($taskGroups[$story->id])) $title = sprintf($this->lang->story->subDivideTip['notWait'], $this->lang->story->hasDividedTask);
+                if($story->grade >= $maxGradeGroup[$story->type]) $title = $this->lang->story->errorMaxGradeSubdivide;
+                $actions[] = array('name' => 'batchCreate', 'hint' => $title, 'disabled' => true, 'icon' => 'split');
             }
-
-            $actions[] = array('name' => 'batchCreate', 'url' => $canBatchCreateStory ? $batchCreateStoryLink : null, 'hint' => $title, 'disabled' => !$canBatchCreateStory);
         }
 
         if(!empty($execution))
@@ -1764,9 +1992,9 @@ class storyTao extends storyModel
                 $batchCreateTaskLink = helper::createLink('task', 'batchCreate', "executionID={$execution->id}&storyID={$story->id}");
                 $storyEstimateLink   = helper::createLink('execution', 'storyEstimate', "executionID={$execution->id}&storyID={$story->id}");
 
-                $canCreateTask      = common::hasPriv('task', 'create') && $story->status == 'active';
-                $canBatchCreateTask = common::hasPriv('task', 'batchCreate') && $story->status == 'active';
-                $canStoryEstimate   = common::hasPriv('execution', 'storyEstimate');
+                $canCreateTask      = common::hasPriv('task', 'create') && $story->status == 'active' && $story->isParent == '0' && $story->type == 'story';
+                $canBatchCreateTask = common::hasPriv('task', 'batchCreate') && $story->status == 'active' && $story->isParent == '0' && $story->type == 'story';
+                $canStoryEstimate   = common::hasPriv('execution', 'storyEstimate') && $story->type == 'story';
 
                 $actions[] = array('name' => 'createTask',      'url' => $canCreateTask      ? $createTaskLink      : null, 'disabled' => !$canCreateTask, 'className' => 'create-task-btn');
                 $actions[] = array('name' => 'batchCreateTask', 'url' => $canBatchCreateTask ? $batchCreateTaskLink : null, 'disabled' => !$canBatchCreateTask);
@@ -1798,6 +2026,30 @@ class storyTao extends storyModel
                         $disabled    = true;
                         $unlinkTitle = $this->lang->execution->notAllowedUnlinkStory;
                     }
+
+                    $canBatchCreateStory = common::hasPriv($story->type, 'batchcreate') && $this->isClickable($story, 'batchcreate') && $story->grade < $maxGradeGroup[$story->type] && empty($story->hasOtherTypeChild);
+                    if($canBatchCreateStory)
+                    {
+                        $actions[] = array('name' => 'batchCreate', 'url' => $batchCreateStoryLink, 'hint' => $this->lang->story->split, 'icon' => 'split');
+                    }
+                    elseif($story->type == 'epic' && common::hasPriv('requirement', 'batchCreate') && $this->isClickable($story, 'batchcreate') && empty($story->hasSameTypeChild) && !($this->config->epic->gradeRule == 'stepwise' && $story->grade < $maxGradeGroup['epic']))
+                    {
+                        $actions[] = array('name' => 'batchCreate', 'url' => helper::createLink('requirement', 'batchCreate', "productID=$story->product&branch=$story->branch&module=$story->module&$params&executionID=$executionID&plan=0"), 'hint' => $this->lang->story->split, 'icon' => 'split');
+                    }
+                    elseif($story->type == 'requirement' && common::hasPriv('story', 'batchCreate') && $this->isClickable($story, 'batchcreate') && empty($story->hasSameTypeChild) && !($this->config->requirement->gradeRule == 'stepwise' && $story->grade < $maxGradeGroup['requirement']))
+                    {
+                        $actions[] = array('name' => 'batchCreate', 'url' => helper::createLink('story', 'batchCreate', "productID=$story->product&branch=$story->branch&module=$story->module&$params&executionID=$executionID&plan=0"), 'hint' => $this->lang->story->split, 'icon' => 'split');
+                    }
+                    elseif(!$canBatchCreateStory && $story->status != 'closed' && common::hasPriv($story->type, 'batchcreate'))
+                    {
+                        $title = $this->lang->story->split;
+                        if($story->status != 'active') $title = $this->lang->story->subDivideTip['notActive'];
+                        if($story->status == 'active' && $story->stage != 'wait') $title = sprintf($this->lang->story->subDivideTip['notWait'], zget($this->lang->story->stageList, $story->stage));
+                        if(!empty($story->twins)) $title = $this->lang->story->subDivideTip['twinsSplit'];
+                        if($story->status == 'active' and !empty($taskGroups[$story->id])) $title = sprintf($this->lang->story->subDivideTip['notWait'], $this->lang->story->hasDividedTask);
+                        if($story->grade >= $maxGradeGroup[$story->type]) $title = $this->lang->story->errorMaxGradeSubdivide;
+                        $actions[] = array('name' => 'batchCreate', 'hint' => $title, 'disabled' => true, 'icon' => 'split');
+                    }
                 }
 
                 if($story->type == 'requirement') $unlinkStoryTip = str_replace($this->lang->SRCommon, $this->lang->URCommon, $unlinkStoryTip);
@@ -1818,7 +2070,8 @@ class storyTao extends storyModel
      */
     protected function isSuperReviewer(): bool
     {
-        return str_contains(',' . zget($this->config->story, 'superReviewers', '') . ',', ",{$this->app->user->account},");
+        $moduleName = $this->app->rawModule;
+        return str_contains(',' . zget($this->config->{$moduleName}, 'superReviewers', '') . ',', ",{$this->app->user->account},");
     }
 
     /**
@@ -1839,7 +2092,6 @@ class storyTao extends storyModel
         $now   = helper::now();
         $story = new stdclass();
         $story->status = $status;
-        $story->stage  = 'wait';
         if(strpos('launched,active,changing,draft', $status) !== false)
         {
             $story->assignedTo   = $oldParentStory->openedBy;
@@ -1853,19 +2105,294 @@ class storyTao extends storyModel
 
         if($status == 'closed')
         {
+            $closedReason = $this->dao->select('closedReason')->from(TABLE_STORY)
+                ->where('parent')->eq($parentID)
+                ->andWhere('deleted')->eq(0)
+                ->andWhere('closedReason')->eq('done')
+                ->fetch('closedReason');
+
             $story->assignedTo   = 'closed';
             $story->assignedDate = $now;
             $story->closedBy     = $this->app->user->account;
             $story->closedDate   = $now;
-            $story->closedReason = 'done';
-            $story->closedReason = 'done';
+            $story->closedReason = $closedReason ? 'done' : 'willnotdo';
         }
 
         $story->lastEditedBy   = $this->app->user->account;
         $story->lastEditedDate = $now;
-        $story->parent         = '-1';
         $this->dao->update(TABLE_STORY)->data($story)->where('id')->eq($parentID)->exec();
 
         return $story;
     }
+
+    /**
+     * 获取传入所有需求的叶子结点，并按照根节点顺序返回
+     * Get leaf node by all stories, and sort by base nodes.
+     *
+     * @param  array    $stories
+     * @param  array    $allStoryIdList
+     * @access public
+     * @return array
+     */
+    public function getLeafNodes(array $stories, array $allStoryIdList): array
+    {
+        $parent    = array();
+        $leafNodes = array();
+        $stmt      = $this->dao->select('id,parent,root,path,grade,product,pri,type,status,stage,title,estimate')->from(TABLE_STORY)->where('id')->in($allStoryIdList)->andWhere('deleted')->eq(0)->orderBy('type_desc,grade_desc,id_desc')->query();
+        while($story = $stmt->fetch())
+        {
+            $parent[$story->parent] = true;
+
+            if(isset($parent[$story->id])) continue;
+            $leafNodes[$story->root][$story->id] = $story;
+        }
+
+        $sortLeafNodes = array();
+        foreach($stories as $story)
+        {
+            if(isset($leafNodes[$story->root])) $sortLeafNodes += $leafNodes[$story->root];
+        }
+
+        return $sortLeafNodes;
+    }
+
+    /**
+     * 根据叶子结点数据，构建看板泳道数据。
+     * Build lanes data by leaf node.
+     *
+     * @param  array    $leafNodes
+     * @param  string   $storyType  epic|requirement|story
+     * @access public
+     * @return array
+     */
+    public function buildTrackLanes(array $leafNodes, string $storyType): array
+    {
+        $lanes = array();
+        foreach($leafNodes as $story)
+        {
+            if(($storyType == 'requirement' || $storyType == 'story') && $story->type == 'epic') continue;
+            if($storyType == 'story' && $story->type == 'requirement') continue;
+            $lanes[] = array('name' => "lane_{$story->id}", 'title' => '');
+        }
+        return $lanes;
+    }
+
+    /**
+     * 根据需求类型，构建看板列数据。
+     * Build cols data by storyType.
+     *
+     * @param  string  $storyType   epic|requirement|story
+     * @access public
+     * @return array
+     */
+    public function buildTrackCols(string $storyType): array
+    {
+        $storyGrade = $this->getGradeGroup();
+
+        $cols = array();
+        if($storyType == 'epic')  $cols['epic']        = $this->buildTrackCol('epic',        $this->lang->ERCommon, empty($storyGrade['epic'])        ? 0 : -1);
+        if($storyType != 'story') $cols['requirement'] = $this->buildTrackCol('requirement', $this->lang->URCommon, empty($storyGrade['requirement']) ? 0 : -1);
+
+        $cols['story']     = $this->buildTrackCol('story',     $this->lang->SRCommon, empty($storyGrade['story']) ? 0 : -1);
+        $cols['project']   = $this->buildTrackCol('project',   $this->lang->story->project);
+        $cols['execution'] = $this->buildTrackCol('execution', $this->lang->story->execution);
+        $cols['design']    = $this->buildTrackCol('design',    $this->lang->story->design);
+        $cols['commit']    = $this->buildTrackCol('commit',    $this->lang->story->repoCommit);
+        $cols['task']      = $this->buildTrackCol('task',      $this->lang->story->tasks);
+        $cols['bug']       = $this->buildTrackCol('bug',       $this->lang->story->bugs);
+        $cols['case']      = $this->buildTrackCol('case',      $this->lang->story->cases);
+
+        foreach($storyGrade as $type => $grades)
+        {
+            if(!isset($cols[$type])) continue;
+            foreach($grades as $grade) $cols["{$type}_{$grade->grade}"] = $this->buildTrackCol("{$type}_{$grade->grade}", $grade->name, $type);
+        }
+
+        return array_values($cols);
+    }
+
+    /**
+     * 根据单个看板列数据。
+     * Build single col data.
+     *
+     * @param  string     $name
+     * @param  string     $title
+     * @param  int|string $parent
+     * @access public
+     * @return array
+     */
+    public function buildTrackCol(string $name, string $title, int|string $parent = 0): array
+    {
+        $col = array('name' => $name, 'title' => $title, 'parent' => $parent);
+        if($parent != '0' && $parent != -1) $col['parentName'] = $parent;
+        return $col;
+    }
+
+    /**
+     * 构建看板项数据。
+     * Build items data by storyType.
+     *
+     * @param  array  $allStories
+     * @param  array  $leafNodes
+     * @param  string $storyType    epic|requirement|story
+     * @access public
+     * @return array
+     */
+    public function buildTrackItems(array $allStories, array $leafNodes, string $storyType): array
+    {
+        $storyIdList  = array_keys($leafNodes);
+        $projectGroup = $this->getProjectsForTrack($storyIdList);
+        $designGroup  = $this->getDesignsForTrack($storyIdList);
+
+        $projects   = zget($projectGroup, 'project', array());
+        $executions = zget($projectGroup, 'execution', array());
+        $designs    = zget($designGroup, 'design', array());
+        $commits    = zget($designGroup, 'commit', array());
+        $tasks      = $this->getTasksForTrack($storyIdList);
+        $cases      = $this->dao->select('id,project,pri,status,color,title,story,lastRunner,lastRunResult')->from(TABLE_CASE)->where('story')->in($storyIdList)->andWhere('deleted')->eq(0)->orderBy('project')->fetchGroup('story', 'id');
+        $bugs       = $this->dao->select('id,project,pri,status,color,title,story,assignedTo,severity')->from(TABLE_BUG)->where('story')->in($storyIdList)->andWhere('deleted')->eq(0)->orderBy('project')->fetchGroup('story', 'id');
+        $storyGrade = $this->getGradeGroup();
+
+        $items = array();
+        foreach($leafNodes as $node)
+        {
+            $laneName = "lane_{$node->id}";
+            foreach(explode(',', trim($node->path, ',')) as $storyID)
+            {
+                if(!isset($allStories[$storyID])) continue;
+                $story = $allStories[$storyID];
+
+                unset($allStories[$storyID]);
+                if($storyType == 'requirement' && $story->type == 'epic') continue;
+                if($storyType == 'story' && ($story->type == 'requirement' || $story->type == 'epic')) continue;
+                if(!isset($storyGrade[$story->type][$story->grade])) continue;
+
+                $colName = "{$story->type}_{$story->grade}";
+                $story->storyType = $story->type;
+                unset($story->type);
+
+                $items[$laneName][$colName][] = $story;
+            }
+            $items[$laneName]['project']   = array_values(zget($projects,   $node->id, array()));
+            $items[$laneName]['execution'] = array_values(zget($executions, $node->id, array()));
+            $items[$laneName]['design']    = array_values(zget($designs,    $node->id, array()));
+            $items[$laneName]['commit']    = array_values(zget($commits,    $node->id, array()));
+            $items[$laneName]['task']      = array_values(zget($tasks,      $node->id, array()));
+            $items[$laneName]['bug']       = array_values(zget($bugs,       $node->id, array()));
+            $items[$laneName]['case']      = array_values(zget($cases,      $node->id, array()));
+        }
+
+        return $items;
+    }
+
+    /**
+     * 根据需求ID列表获取关联的项目和执行
+     * Get linked projects and executions by story id list.
+     *
+     * @param  array  $storyIdList
+     * @access public
+     * @return array
+     */
+    public function getProjectsForTrack(array $storyIdList): array
+    {
+        $projectStoryList = array();
+        $stmt = $this->dao->select('*')->from(TABLE_PROJECTSTORY)->where('story')->in($storyIdList)->query();
+        while($projectStory = $stmt->fetch()) $projectStoryList[$projectStory->project][$projectStory->story] = $projectStory->story;
+
+        $projects   = array();
+        $executions = array();
+        $stmt       = $this->dao->select('id,type AS projectType,model,parent,path,grade,name as title,hasProduct,begin,end,status,project,progress')->from(TABLE_PROJECT)->where('id')->in(array_keys($projectStoryList))->andWhere('deleted')->eq(0)->orderBy('id')->query();
+        $today      = helper::today();
+        $storyGroup = array();
+        while($project = $stmt->fetch())
+        {
+            $delay = 0;
+            if($project->status != 'done' && $project->status != 'closed' && $project->status != 'suspended') $delay = helper::diffDate($today, $project->end);
+
+            $project->delay = $delay > 0;
+            $projectType = $project->projectType == 'project' ? 'project' : 'execution';
+            foreach($projectStoryList[$project->id] as $storyID) $storyGroup[$projectType][$storyID][$project->id] = $project;
+        }
+
+        return $storyGroup;
+    }
+
+    /**
+     * 根据需求ID列表获取关联的设计和提交
+     * Get linked designs and commits by story id list.
+     *
+     * @param  array  $storyIdList
+     * @access public
+     * @return array
+     */
+    public function getDesignsForTrack(array $storyIdList): array
+    {
+        $storyGroup   = array('design' => array(), 'commit' => array());
+        $stmt         = $this->dao->select('id,project,commit,name as title,status,story,type AS designType')->from(TABLE_DESIGN)->where('story')->in($storyIdList)->andWhere('deleted')->eq(0)->orderBy('project')->query();
+        $commitIdList = '';
+        $commitGroup  = array();
+        while($design = $stmt->fetch())
+        {
+            $storyGroup['design'][$design->story][$design->id] = $design;
+            $commitIdList .= $design->commit ? "{$design->commit}," : '';
+        }
+
+        $commits = $this->dao->select('id,repo,revision,committer,comment as title')->from(TABLE_REPOHISTORY)->where('id')->in(array_unique(explode(',', $commitIdList)))->fetchAll('id');
+        foreach($storyGroup['design'] as $storyID => $designs)
+        {
+            foreach($designs as $designID => $design)
+            {
+                if(empty($design->commit)) continue;
+                foreach(explode(',', $design->commit) as $commitID)
+                {
+                    $commit = zget($commits, $commitID, '');
+                    if(empty($commit)) continue;
+
+                    $commit->project = $design->project;
+                    $storyGroup['commit'][$storyID][$commitID] = $commit;
+                }
+            }
+        }
+
+        return $storyGroup;
+    }
+
+    /**
+     * 根据需求ID列表获取关联的任务
+     * Get linked tasks by story id list.
+     *
+     * @param  array  $storyIdList
+     * @access public
+     * @return array
+     */
+    public function getTasksForTrack(array $storyIdList): array
+    {
+        $stmt  = $this->dao->select('id,project,execution,pri,status,color,name as title,assignedTo,story,estimate,consumed,`left`,parent')->from(TABLE_TASK)->where('story')->in($storyIdList)->andWhere('deleted')->eq(0)->orderBy('project,execution')->query();
+        $tasks = array();
+        while($task = $stmt->fetch())
+        {
+            $task->progress = 0;
+            if($task->consumed + $task->left) $task->progress = round(($task->consumed / ($task->consumed + $task->left)) * 100, 2);
+
+            if($task->parent > 0 && isset($tasks[$task->parent]))
+            {
+                $tasks[$task->parent]->children[$task->id] = $task;
+            }
+            else
+            {
+                $tasks[$task->id] = $task;
+            }
+        }
+
+        $taskGroup = array();
+        foreach($tasks as $task)
+        {
+            $children = !empty($task->children) ? $task->children : array();
+            unset($task->children);
+
+            $taskGroup[$task->story][$task->id] = $task;
+            foreach($children as $subTask) $taskGroup[$subTask->story][$subTask->id] = $subTask;
+        }
+        return $taskGroup;
+    }
 }
diff --git a/module/story/test/lib/story.unittest.class.php b/module/story/test/lib/story.unittest.class.php
index f1b91168bd..a7e217add7 100644
--- a/module/story/test/lib/story.unittest.class.php
+++ b/module/story/test/lib/story.unittest.class.php
@@ -383,22 +383,15 @@ class storyTest
      * @access public
      * @return object|array
      */
-    public function subdivideTest(int $storyID, array $stories, string $type): object|array
+    public function subdivideTest(int $storyID, array $stories): object|array
     {
-        $this->objectModel->dao->delete()->from(TABLE_RELATION)->exec();
         $this->objectModel->subdivide($storyID, $stories);
 
         if(dao::isError()) return dao::getError();
 
-        global $tester;
-        if($type == 'requirement')
-        {
-            return $tester->dao->select('*')->from(TABLE_RELATION)->fetchAll();
-        }
-        else
-        {
-            return $this->objectModel->getById($storyID);
-        }
+        $story = $this->objectModel->getById($storyID);
+        $story->children = $this->objectModel->dao->select('*')->from(TABLE_STORY)->where('parent')->eq($storyID)->fetchAll();
+        return $story;
     }
 
     /**
@@ -411,6 +404,9 @@ class storyTest
      */
     public function closeTest(int $storyID, object $postData)
     {
+        global $tester;
+        $tester->loadModel('requirement');
+        $tester->loadModel('epic');
         $this->objectModel->close($storyID, $postData);
 
         if(dao::isError()) return dao::getError();
@@ -682,7 +678,7 @@ class storyTest
      */
     public function getExecutionStoriesBySearchTest(int $executionID, int $queryID, int $productID, array $excludeStories = array(), object|null $pager = null): int
     {
-        $stories = $this->objectModel->getExecutionStoriesBySearch($executionID, $queryID, $productID, 't2.id_desc', 'story', $excludeStories, $pager);
+        $stories = $this->objectModel->getExecutionStoriesBySearch($executionID, $queryID, $productID, 't2.id_desc', 'story', '', $excludeStories, $pager);
         return count($stories);
     }
 
@@ -764,24 +760,6 @@ class storyTest
         return array_filter((array)$this->objectModel->dao->select('*')->from(TABLE_ACTION)->orderBy('id_desc')->limit(1)->fetch());
     }
 
-    /**
-     * 测试 doCreateURRelations 方法。
-     * Test doCreateURRelations method.
-     *
-     * @param  int    $storyID
-     * @param  array  $URList
-     * @access public
-     * @return array
-     */
-    public function doCreateURRelationsTest(int $storyID, array $URList): array
-    {
-        $this->objectModel->dao->delete()->from(TABLE_RELATION)->exec();
-        $this->objectModel->doCreateURRelations($storyID, $URList);
-
-        if(dao::isError()) return dao::getError();
-        return $this->objectModel->dao->select('*')->from(TABLE_RELATION)->fetchAll();
-    }
-
     /**
      * 测试 doCreateReviewer 方法。
      * Test doCreateReviewer method.
@@ -978,23 +956,6 @@ class storyTest
         return $this->objectModel->fetchBaseInfo($storyID);
     }
 
-    /**
-     * 测试 updateStoryVersion 方法
-     * Test updateStoryVersion method
-     *
-     * @param  int    $storyID
-     * @access public
-     * @return object
-     */
-    public function updateStoryVersionTest(int $storyID): object
-    {
-        $story = $this->objectModel->fetchByID($storyID);
-        $this->objectModel->dao->update(TABLE_STORY)->set('version')->eq(2)->where('id')->eq(3)->exec();
-        $this->objectModel->updateStoryVersion($story);
-
-        return $this->objectModel->dao->select('*')->from(TABLE_RELATION)->where('AType')->eq('requirement')->andWhere('BType')->eq('story')->andWhere('relation')->eq('subdivideinto')->andWhere('AID')->eq(3)->andWhere('BID')->eq($storyID)->fetch();
-    }
-
     /**
      * 测试 syncTwins 方法。
      * Test syncTwins method
diff --git a/module/story/test/model/addgradelabel.php b/module/story/test/model/addgradelabel.php
new file mode 100755
index 0000000000..a8e98f9fc2
--- /dev/null
+++ b/module/story/test/model/addgradelabel.php
@@ -0,0 +1,28 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 storyModel->addGradeLabel();
+timeout=0
+cid=0
+
+- 查看是否有SR2标签第text条的html属性 @<span class='label rounded-xl ring-0 inverse bg-opacity-10 text-inherit mr-1 size-sm'>SR2</span> 软件需求2
+- 查看是否有SR2标签第text条的html属性 @<span class='label rounded-xl ring-0 inverse bg-opacity-10 text-inherit mr-1 size-sm'>SR2</span> 软件需求4
+
+*/
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+include dirname(__FILE__, 2) . '/lib/story.unittest.class.php';
+su('admin');
+
+$story = zenData('story');
+$story->version->range(1);
+$story->gen(5);
+zenData('storyspec')->gen(5);
+
+global $tester;
+$stories = $tester->loadModel('story')->getProductStories(1);
+$stories = $tester->story->addGradeLabel($stories);
+
+r($stories[0]) && p('text:html') && e("<span class='label rounded-xl ring-0 inverse bg-opacity-10 text-inherit mr-1 size-sm'>SR2</span> 软件需求2"); // 查看是否有SR2标签
+r($stories[1]) && p('text:html') && e("<span class='label rounded-xl ring-0 inverse bg-opacity-10 text-inherit mr-1 size-sm'>SR2</span> 软件需求4"); // 查看是否有SR2标签
\ No newline at end of file
diff --git a/module/story/test/model/batchchangeplan.php b/module/story/test/model/batchchangeplan.php
index a6fe32c9ed..fb1ad44615 100755
--- a/module/story/test/model/batchchangeplan.php
+++ b/module/story/test/model/batchchangeplan.php
@@ -4,22 +4,22 @@
 /**
 
 title=测试 storyModel->batchChangePlan();
+timeout=0
 cid=0
 
 - 批量修改6个需求的计划，查看被修改计划的需求数量 @4
-- 批量修改6个需求的计划，查看被修改计划的需求数量 @4
+- 批量修改6个需求的计划，查看被修改计划的需求数量 @3
 - 批量修改6个需求的计划，查看需求1修改后的计划ID第1条的plan属性 @10
 - 批量修改6个需求的计划，查看需求2修改后的计划ID第2条的plan属性 @10
 - 批量修改6个需求的计划，查看需求4修改后的计划ID第4条的plan属性 @2,10
 - 批量修改6个需求的计划，查看需求5修改后的计划ID第5条的plan属性 @10
-- 批量修改6个需求的计划，查看需求1修改后的计划ID第1条的plan属性 @9
+- 批量修改6个需求的计划，查看需求1修改后的计划ID第1条的plan属性 @10,9
 - 批量修改6个需求的计划，查看需求2修改后的计划ID第2条的plan属性 @9
-- 批量修改6个需求的计划，查看需求4修改后的计划ID第4条的plan属性 @9
-- 批量修改6个需求的计划，查看需求5修改后的计划ID第5条的plan属性 @9
-- 批量修改6个需求的计划，查看需求1修改后的计划ID第1条的plan属性 @5
+- 批量修改6个需求的计划，查看需求4修改后的计划ID第4条的plan属性 @2,10
+- 批量修改6个需求的计划，查看需求1修改后的计划ID第1条的plan属性 @10,9,5
 - 批量修改6个需求的计划，查看需求2修改后的计划ID第2条的plan属性 @5
-- 批量修改6个需求的计划，查看需求4修改后的计划ID第4条的plan属性 @5
-- 批量修改6个需求的计划，查看需求5修改后的计划ID第5条的plan属性 @5
+- 批量修改6个需求的计划，查看需求4修改后的计划ID第4条的plan属性 @2,10,5
+- 批量修改6个需求的计划，查看需求5修改后的计划ID第5条的plan属性 @10,5
 
 */
 include dirname(__FILE__, 5) . '/test/lib/init.php';
@@ -50,17 +50,16 @@ $stories1 = $story->batchChangePlanTest($storyIdList, 10, 11);
 $stories2 = $story->batchChangePlanTest($storyIdList, 9);
 $stories3 = $story->batchChangePlanTest($storyIdList, 5, 9);
 
-r(count($stories1)) && p()         && e('4');         // 批量修改6个需求的计划，查看被修改计划的需求数量
-r(count($stories2)) && p()         && e('4');         // 批量修改6个需求的计划，查看被修改计划的需求数量
-r($stories1)        && p('1:plan') && e('10');        // 批量修改6个需求的计划，查看需求1修改后的计划ID
-r($stories1)        && p('2:plan') && e('10');        // 批量修改6个需求的计划，查看需求2修改后的计划ID
-r($stories1)        && p('4:plan', '|') && e('2,10'); // 批量修改6个需求的计划，查看需求4修改后的计划ID
-r($stories1)        && p('5:plan') && e('10');        // 批量修改6个需求的计划，查看需求5修改后的计划ID
-r($stories2)        && p('1:plan') && e('9');         // 批量修改6个需求的计划，查看需求1修改后的计划ID
-r($stories2)        && p('2:plan') && e('9');         // 批量修改6个需求的计划，查看需求2修改后的计划ID
-r($stories2)        && p('4:plan') && e('9');         // 批量修改6个需求的计划，查看需求4修改后的计划ID
-r($stories2)        && p('5:plan') && e('9');         // 批量修改6个需求的计划，查看需求5修改后的计划ID
-r($stories3)        && p('1:plan') && e('5');         // 批量修改6个需求的计划，查看需求1修改后的计划ID
-r($stories3)        && p('2:plan') && e('5');         // 批量修改6个需求的计划，查看需求2修改后的计划ID
-r($stories3)        && p('4:plan') && e('5');         // 批量修改6个需求的计划，查看需求4修改后的计划ID
-r($stories3)        && p('5:plan') && e('5');         // 批量修改6个需求的计划，查看需求5修改后的计划ID
+r(count($stories1)) && p()              && e('4');      // 批量修改6个需求的计划，查看被修改计划的需求数量
+r(count($stories2)) && p()              && e('3');      // 批量修改6个需求的计划，查看被修改计划的需求数量
+r($stories1)        && p('1:plan')      && e('10');     // 批量修改6个需求的计划，查看需求1修改后的计划ID
+r($stories1)        && p('2:plan')      && e('10');     // 批量修改6个需求的计划，查看需求2修改后的计划ID
+r($stories1)        && p('4:plan', '|') && e('2,10');   // 批量修改6个需求的计划，查看需求4修改后的计划ID
+r($stories1)        && p('5:plan')      && e('10');     // 批量修改6个需求的计划，查看需求5修改后的计划ID
+r($stories2)        && p('1:plan', '|') && e('10,9');   // 批量修改6个需求的计划，查看需求1修改后的计划ID
+r($stories2)        && p('2:plan')      && e('9');      // 批量修改6个需求的计划，查看需求2修改后的计划ID
+r($stories2)        && p('4:plan', '|') && e('2,10');   // 批量修改6个需求的计划，查看需求4修改后的计划ID
+r($stories3)        && p('1:plan', '|') && e('10,9,5'); // 批量修改6个需求的计划，查看需求1修改后的计划ID
+r($stories3)        && p('2:plan')      && e('5');      // 批量修改6个需求的计划，查看需求2修改后的计划ID
+r($stories3)        && p('4:plan', '|') && e('2,10,5'); // 批量修改6个需求的计划，查看需求4修改后的计划ID
+r($stories3)        && p('5:plan', '|') && e('10,5');   // 批量修改6个需求的计划，查看需求5修改后的计划ID
\ No newline at end of file
diff --git a/module/story/test/model/batchgetexecutionstories.php b/module/story/test/model/batchgetexecutionstories.php
old mode 100644
new mode 100755
index 6089070ebc..4930042b2c
--- a/module/story/test/model/batchgetexecutionstories.php
+++ b/module/story/test/model/batchgetexecutionstories.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->batchGetExecutionStories();
+timeout=0
 cid=0
 
 - 不传入数据。 @0
@@ -12,7 +13,7 @@ cid=0
 - 传入有关联需求的项目数据，传入无需求的产品数据。 @0
 - 传入有关联需求的项目数据，不传入产品数据。 @25
 - 传入有关联需求的项目数据，传入有需求的产品数据。 @25
-- 传入有关联需求的项目数据，传入无需求的产品数据。 @25
+- 传入有关联需求的项目数据，传入无需求的产品数据。 @0
 - 传入分页。 @5
 
 */
@@ -42,10 +43,10 @@ r(count($storyModel->batchGetExecutionStories('11,12', 1))) && p() && e('25'); /
 r(count($storyModel->batchGetExecutionStories('11,12', 2))) && p() && e('0');  //传入有关联需求的项目数据，传入无需求的产品数据。
 r(count($storyModel->batchGetExecutionStories('36,37', 0))) && p() && e('25'); //传入有关联需求的项目数据，不传入产品数据。
 r(count($storyModel->batchGetExecutionStories('36,37', 1))) && p() && e('25'); //传入有关联需求的项目数据，传入有需求的产品数据。
-r(count($storyModel->batchGetExecutionStories('36,37', 2))) && p() && e('25');  //传入有关联需求的项目数据，传入无需求的产品数据。
+r(count($storyModel->batchGetExecutionStories('36,37', 2))) && p() && e('0');  //传入有关联需求的项目数据，传入无需求的产品数据。
 
 $storyModel->app->loadClass('pager', $static = true);
 $storyModel->app->moduleName = 'product';
 $storyModel->app->methodName = 'track';
 $pager = new pager(0, 5, 1);
-r(count($storyModel->batchGetExecutionStories('36,37', 1, 't1.`order`_desc', 'byModule', '0', 'story', '', $pager))) && p() && e('5'); //传入分页。
+r(count($storyModel->batchGetExecutionStories('36,37', 1, 't1.`order`_desc', 'byModule', '0', 'story', '', $pager))) && p() && e('5'); //传入分页。
\ No newline at end of file
diff --git a/module/story/test/model/batchreview.php b/module/story/test/model/batchreview.php
index 224035ce32..00b98e55e8 100755
--- a/module/story/test/model/batchreview.php
+++ b/module/story/test/model/batchreview.php
@@ -32,7 +32,6 @@ $story->plan->range('0,1,0{100}');
 $story->duplicateStory->range('0,4,0{100}');
 $story->linkStories->range('0,6,0{100}');
 $story->linkRequirements->range('3,0{100}');
-$story->childStories->range('0,8,0{100}');
 $story->toBug->range('0{9},1,0{100}');
 $story->parent->range('0{17},`-1`,0,18,0{100}');
 $story->twins->range('``{27},30,``,28');
diff --git a/module/story/test/model/buildactionbuttonlist.php b/module/story/test/model/buildactionbuttonlist.php
old mode 100644
new mode 100755
index 95e2d982a4..30a3beab1a
--- a/module/story/test/model/buildactionbuttonlist.php
+++ b/module/story/test/model/buildactionbuttonlist.php
@@ -4,45 +4,45 @@
 /**
 
 title=测试 storyModel->buildactionbuttonlist();
+timeout=0
 cid=0
 
 - 查看用户需求列表操作菜单第一个链接
  - 第0条的name属性 @change
- - 第0条的hint属性 @只有激活状态的用户需求，才能进行变更
+ - 第0条的hint属性 @只有激活状态的需求，才能进行变更
  - 第0条的disabled属性 @1
 - 查看用户需求列表操作菜单第二个链接
  - 第1条的name属性 @submitreview
  - 第1条的data-toggle属性 @modal
- - 第1条的url属性 @/story-submitReview-1-requirement.html
+ - 第1条的url属性 @/requirement-submitReview-1.html
 - 查看用户需求列表操作菜单第四个链接
  - 第3条的name属性 @close
  - 第3条的data-toggle属性 @modal
- - 第3条的url属性 @/story-close-1--requirement.html
+ - 第3条的url属性 @/requirement-close-1-.html
 - 查看用户需求列表操作菜单第六个链接
  - 第5条的name属性 @edit
- - 第5条的url属性 @/story-edit-1-default-requirement.html
+ - 第5条的url属性 @/requirement-edit-1-default.html
 - 查看软件需求详情操作菜单第一个链接
  - 第0条的name属性 @change
  - 第0条的hint属性 @变更
- - 第0条的url属性 @/story-change-2--story.html
+ - 第0条的url属性 @/story-change-2-.html
 - 查看软件需求详情操作菜单第二个链接
  - 第1条的name属性 @review
- - 第1条的hint属性 @该用户需求已是激活状态，无需评审
+ - 第1条的hint属性 @该需求已是激活状态，无需评审
  - 第1条的disabled属性 @1
 - 查看软件需求详情操作菜单第四个链接
  - 第3条的name属性 @close
  - 第3条的data-toggle属性 @modal
- - 第3条的url属性 @/story-close-2--story.html
+ - 第3条的url属性 @/story-close-2-.html
 - 查看软件需求详情操作菜单第六个链接
  - 第5条的name属性 @edit
- - 第5条的url属性 @/story-edit-2-default-story.html
+ - 第5条的url属性 @/story-edit-2-default.html
 - 查看软件需求详情操作菜单第七个链接
  - 第6条的name属性 @testcase
  - 第6条的url属性 @/testcase-create-1-0-0--0-2.html
 - 查看软件需求详情操作菜单第九个链接
- - 第8条的name属性 @unlink
- - 第8条的className属性 @ajax-submit
- - 第8条的url属性 @/execution-unlinkStory-11-2-yes.html
+ - 第8条的name属性 @batchCreate
+ - 第8条的className属性 @~~
 
 */
 include dirname(__FILE__, 5) . '/test/lib/init.php';
@@ -77,15 +77,15 @@ $execution->multiple = 0;
 $tester->story->app->tab = 'execution';
 $storyOperateMenu2 = $tester->story->buildactionbuttonlist($story, 'browse', $execution, 'story');
 
-r($requirementOperateMenu1) && p('0:name,hint,disabled')   && e('change,只有激活状态的用户需求，才能进行变更,1');             //查看用户需求列表操作菜单第一个链接
-r($requirementOperateMenu1) && p('1:name,data-toggle,url') && e('submitreview,modal,/story-submitReview-1-requirement.html'); //查看用户需求列表操作菜单第二个链接
-r($requirementOperateMenu1) && p('3:name,data-toggle,url') && e('close,modal,/story-close-1--requirement.html');              //查看用户需求列表操作菜单第四个链接
-r($requirementOperateMenu1) && p('5:name,url')             && e('edit,/story-edit-1-default-requirement.html');               //查看用户需求列表操作菜单第六个链接
+r($requirementOperateMenu1) && p('0:name,hint,disabled')   && e('change,只有激活状态的需求，才能进行变更,1');                 //查看用户需求列表操作菜单第一个链接
+r($requirementOperateMenu1) && p('1:name,data-toggle,url') && e('submitreview,modal,/requirement-submitReview-1.html'); //查看用户需求列表操作菜单第二个链接
+r($requirementOperateMenu1) && p('3:name,data-toggle,url') && e('close,modal,/requirement-close-1-.html');              //查看用户需求列表操作菜单第四个链接
+r($requirementOperateMenu1) && p('5:name,url')             && e('edit,/requirement-edit-1-default.html');               //查看用户需求列表操作菜单第六个链接
 
-r($storyOperateMenu1)       && p('0:name,hint,url')         && e('change,变更,/story-change-2--story.html');                  //查看软件需求详情操作菜单第一个链接
-r($storyOperateMenu1)       && p('1:name,hint,disabled')    && e('review,该用户需求已是激活状态，无需评审,1');                //查看软件需求详情操作菜单第二个链接
-r($storyOperateMenu1)       && p('3:name,data-toggle,url')  && e('close,modal,/story-close-2--story.html');                   //查看软件需求详情操作菜单第四个链接
-r($storyOperateMenu1)       && p('5:name,url')              && e('edit,/story-edit-2-default-story.html');                    //查看软件需求详情操作菜单第六个链接
-r($storyOperateMenu1)       && p('6:name,url')              && e('testcase,/testcase-create-1-0-0--0-2.html');                //查看软件需求详情操作菜单第七个链接
+r($storyOperateMenu1)       && p('0:name,hint,url')         && e('change,变更,/story-change-2-.html');         //查看软件需求详情操作菜单第一个链接
+r($storyOperateMenu1)       && p('1:name,hint,disabled')    && e('review,该需求已是激活状态，无需评审,1');     //查看软件需求详情操作菜单第二个链接
+r($storyOperateMenu1)       && p('3:name,data-toggle,url')  && e('close,modal,/story-close-2-.html');          //查看软件需求详情操作菜单第四个链接
+r($storyOperateMenu1)       && p('5:name,url')              && e('edit,/story-edit-2-default.html');           //查看软件需求详情操作菜单第六个链接
+r($storyOperateMenu1)       && p('6:name,url')              && e('testcase,/testcase-create-1-0-0--0-2.html'); //查看软件需求详情操作菜单第七个链接
 
-r($storyOperateMenu2)       && p('8:name,className,url') && e('unlink,ajax-submit,/execution-unlinkStory-11-2-yes.html');     //查看软件需求详情操作菜单第九个链接
+r($storyOperateMenu2)       && p('8:name,className')        && e('batchCreate,~~');  //查看软件需求详情操作菜单第九个链接
\ No newline at end of file
diff --git a/module/story/test/model/change.php b/module/story/test/model/change.php
index 5605c1ac09..d4e8a55fbe 100755
--- a/module/story/test/model/change.php
+++ b/module/story/test/model/change.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->change();
+timeout=0
 cid=0
 
 - 查看变更后需求数据。
@@ -40,4 +41,4 @@ $result1 = $story->changeTest(1,  $story1);
 $result2 = $story->changeTest(2,  $story2);
 
 r($result1) && p('title,spec,version') && e('测试需求1变更标题,测试需求1的变更描述,4'); // 查看变更后需求数据。
-r((int)strpos($result2['title'][0], '名称』不能为空') !== false) && p() && e('1');      // 变更时不填写需求名称，给出提示
+r((int)strpos($result2['title'][0], '名称』不能为空') !== false) && p() && e('1');      // 变更时不填写需求名称，给出提示
\ No newline at end of file
diff --git a/module/story/test/model/checkforcereview.php b/module/story/test/model/checkforcereview.php
old mode 100644
new mode 100755
index cd5103c1c2..74c91f0df6
--- a/module/story/test/model/checkforcereview.php
+++ b/module/story/test/model/checkforcereview.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->checkforcereview();
+timeout=0
 cid=0
 
 - 执行story模块的checkForceReview方法  @0
@@ -62,4 +63,4 @@ r((int)$tester->story->checkForceReview()) && p() && e('1');
 
 $tester->story->config->story->forceNotReviewRoles = '';
 $tester->story->config->story->forceNotReviewDepts = '1';
-r((int)$tester->story->checkForceReview()) && p() && e('1');
+r((int)$tester->story->checkForceReview()) && p() && e('1');
\ No newline at end of file
diff --git a/module/story/test/model/close.php b/module/story/test/model/close.php
index 51fba3f995..7ea70c804f 100755
--- a/module/story/test/model/close.php
+++ b/module/story/test/model/close.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->close();
+timeout=0
 cid=0
 
 - 关闭一个用户需求，查看状态
@@ -19,7 +20,7 @@ cid=0
 - 关闭一个重复了的需求，但缺少重复的需求的ID，查看状态
  - 属性status @~~
  - 属性closedReason @~~
- - 属性duplicateStory @『重复研发需求』不能为空。
+ - 属性duplicateStory @『重复需求』不能为空。
 
 */
 include dirname(__FILE__, 5) . '/test/lib/init.php';
@@ -58,7 +59,7 @@ $story2 = $story->closeTest(2, $postData2);
 $story3 = $story->closeTest(3, $postData3);
 $story4 = $story->closeTest(4, $postData4);
 
-r($story1) && p('status,closedReason')                 && e('closed,done');                      // 关闭一个用户需求，查看状态
-r($story2) && p('status,closedReason')                 && e('closed,willnotdo');                 // 关闭一个软件需求，查看状态
-r($story3) && p('status,closedReason,duplicateStory')  && e('closed,duplicate,5');               // 关闭一个重复了的需求，查看状态
-r($story4) && p('status,closedReason,duplicateStory')  && e('~~,~~,『重复研发需求』不能为空。'); // 关闭一个重复了的需求，但缺少重复的需求的ID，查看状态
+r($story1) && p('status,closedReason')                 && e('closed,done');                  // 关闭一个用户需求，查看状态
+r($story2) && p('status,closedReason')                 && e('closed,willnotdo');             // 关闭一个软件需求，查看状态
+r($story3) && p('status,closedReason,duplicateStory')  && e('closed,duplicate,5');           // 关闭一个重复了的需求，查看状态
+r($story4) && p('status,closedReason,duplicateStory')  && e('~~,~~,『重复需求』不能为空。'); // 关闭一个重复了的需求，但缺少重复的需求的ID，查看状态
\ No newline at end of file
diff --git a/module/story/test/model/create.php b/module/story/test/model/create.php
index 2e0bfc51ce..95ad52d934 100755
--- a/module/story/test/model/create.php
+++ b/module/story/test/model/create.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->create();
+timeout=0
 cid=0
 
 - 检查创建后的数据。
@@ -39,8 +40,7 @@ $data  = new stdclass();
 $data->product     = 1;
 $data->module      = 0;
 $data->modules     = array(0);
-$data->plans       = array(0);
-$data->plan        = 1;
+$data->plan        = '1';
 $data->assignedTo  = '';
 $data->source      = '';
 $data->sourceNote  = '';
@@ -63,7 +63,6 @@ $data->openedBy    = 'admin';
 $data->openedDate  = date('Y-m-d H:i:s');
 $data->mailto      = '';
 $data->parent      = 1;
-$data->URS[]       = 1;
 $data->reviewer[]  = 'admin';
 
 $story = new storyTest();
@@ -72,4 +71,4 @@ $test2 = $story->createTest($data, 11);
 $test3 = $story->createTest($data, 0, 1);
 r((array)$test1)                 && p('id,title') && e('5,test story'); //检查创建后的数据。
 r(count($test2->linkedProjects)) && p()           && e('1');            //如果传入执行，检查需求是否已经关联到执行了。
-r($test3->linkedBug->status)     && p()           && e('closed');       //如果传入Bug，检查Bug是否已经关闭了。
+r($test3->linkedBug->status)     && p()           && e('closed');       //如果传入Bug，检查Bug是否已经关闭了。
\ No newline at end of file
diff --git a/module/story/test/model/createtwins.php b/module/story/test/model/createtwins.php
index 27191d34d9..bc27710c4e 100755
--- a/module/story/test/model/createtwins.php
+++ b/module/story/test/model/createtwins.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->createTwins();
+timeout=0
 cid=0
 
 - 检查创建后的数据。
@@ -39,7 +40,7 @@ $data->module      = 0;
 $data->branches    = array(0, 1);
 $data->modules     = array(1, 2);
 $data->plans       = array(0, 0);
-$data->plan        = 1;
+$data->plan        = '1';
 $data->assignedTo  = '';
 $data->source      = '';
 $data->sourceNote  = '';
@@ -61,9 +62,8 @@ $data->openedBy    = 'admin';
 $data->openedDate  = date('Y-m-d H:i:s');
 $data->mailto      = '';
 $data->parent      = 1;
-$data->URS[]       = 1;
 $data->reviewer[]  = 'admin';
 
 $story = new storyTest();
 $test1 = $story->createTwinsTest($data);
-r((array)$test1) && p('id-twins', '-') && e('5-,6,'); //检查创建后的数据。
+r((array)$test1) && p('id-twins', '-') && e('5-,6,'); //检查创建后的数据。
\ No newline at end of file
diff --git a/module/story/test/model/getaffectedscope.php b/module/story/test/model/getaffectedscope.php
index 9b1b0f8757..856baeb79a 100755
--- a/module/story/test/model/getaffectedscope.php
+++ b/module/story/test/model/getaffectedscope.php
@@ -27,7 +27,6 @@ $story->plan->range('0,1,0{100}');
 $story->duplicateStory->range('0,4,0{100}');
 $story->linkStories->range('0,6,0{100}');
 $story->linkRequirements->range('3,0{100}');
-$story->childStories->range('0,8,0{100}');
 $story->toBug->range('0{9},1,0{100}');
 $story->parent->range('0{17},`-1`,0,18,0{100}');
 $story->twins->range('``{27},30,``,28');
diff --git a/module/story/test/model/getbyid.php b/module/story/test/model/getbyid.php
index 4bebaafa17..644f076a61 100755
--- a/module/story/test/model/getbyid.php
+++ b/module/story/test/model/getbyid.php
@@ -4,19 +4,18 @@
 /**
 
 title=测试 storyModel->getById();
+timeout=0
 cid=0
 
-- 获取ID为1、版本号为1的需求关联的用户需求。 @用户需求3
 - 获取ID为1、版本号为1的需求的名称。属性title @用户需求版本一1
 - 获取ID为1、版本号为2的需求的名称。
  - 属性title @用户需求版本一2
  - 属性spec @这是一个软件需求描述2
 - 获取ID为2、版本号为3的需求关联的执行。 @22|30|37
-- 获取ID为2、版本号为3的需求关联的需求。 @4|6|8
+- 获取ID为2、版本号为3的需求关联的需求。 @4
 - 获取ID为2、版本号为3的需求，执行ID为21的创建任务数。 @2
 - 获取ID为2、版本号为3的需求，执行ID为26的创建任务数。 @2
 - 获取ID为2、版本号为3的需求关联的计划。 @1.0
-- 获取ID为2、版本号为3的需求关联需求的标题。 @软件需求6
 - 获取ID为2、版本号为3的需求的名称。属性title @用户需求版本一6
 - 获取ID为10、版本号为3的需求转化Bug的名称。属性toBugTitle @BUG1
 - 获取ID为18、版本号为3的需求子需求的标题。属性title @软件需求20
@@ -34,9 +33,9 @@ $story->plan->range('0,1,0{100}');
 $story->duplicateStory->range('0,4,0{100}');
 $story->linkStories->range('0,6,0{100}');
 $story->linkRequirements->range('3,0{100}');
-$story->childStories->range('0,8,0{100}');
 $story->toBug->range('0{9},1,0{100}');
 $story->parent->range('0{17},`-1`,0,18,0{100}');
+$story->isParent->range('0{17},1,0{100}');
 $story->twins->range('``{27},30,``,28');
 $story->gen(30);
 
@@ -77,19 +76,17 @@ $story18Version3 = $story->getByIdTest(18, 3);
 $story20Version3 = $story->getByIdTest(20, 3);
 $story28Version3 = $story->getByIdTest(28, 3);
 
-r($story1Version1->linkStoryTitles[3])  && p() && e('用户需求3');                     //获取ID为1、版本号为1的需求关联的用户需求。
 r($story1Version1)  && p('title') && e('用户需求版本一1');                            //获取ID为1、版本号为1的需求的名称。
 r($story1Version2)  && p('title,spec') && e('用户需求版本一2,这是一个软件需求描述2'); //获取ID为1、版本号为2的需求的名称。
 
 r(implode('|', array_keys($story2Version3->executions)))    && p() && e('22|30|37'); //获取ID为2、版本号为3的需求关联的执行。
-r(implode('|', array_keys($story2Version3->extraStories)))  && p() && e('4|6|8');    //获取ID为2、版本号为3的需求关联的需求。
+r(implode('|', array_keys($story2Version3->extraStories)))  && p() && e('4');        //获取ID为2、版本号为3的需求关联的需求。
 r(count($story2Version3->tasks[21]))  && p() && e('2');                              //获取ID为2、版本号为3的需求，执行ID为21的创建任务数。
 r(count($story2Version3->tasks[26]))  && p() && e('2');                              //获取ID为2、版本号为3的需求，执行ID为26的创建任务数。
 r($story2Version3->planTitle[1])  && p() && e('1.0');                                //获取ID为2、版本号为3的需求关联的计划。
-r($story2Version3->linkStoryTitles[6])  && p() && e('软件需求6');                    //获取ID为2、版本号为3的需求关联需求的标题。
 r($story2Version3)  && p('title') && e('用户需求版本一6');                           //获取ID为2、版本号为3的需求的名称。
 
 r($story10Version3) && p('toBugTitle')  && e('BUG1');                //获取ID为10、版本号为3的需求转化Bug的名称。
 r($story18Version3->children[20]) && p('title')  && e('软件需求20'); //获取ID为18、版本号为3的需求子需求的标题。
 r($story20Version3) && p('parentName')  && e('软件需求18');          //获取ID为20、版本号为3的需求父需求的标题。
-r(count($story28Version3->tasks[30])) && p()  && e('2');             //获取ID为20、版本号为3的需求孪生需求关联执行中的任务数。
+r(count($story28Version3->tasks[30])) && p()  && e('2');             //获取ID为20、版本号为3的需求孪生需求关联执行中的任务数。
\ No newline at end of file
diff --git a/module/story/test/model/getchangedstories.php b/module/story/test/model/getchangedstories.php
deleted file mode 100755
index 1159d2c09c..0000000000
--- a/module/story/test/model/getchangedstories.php
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/usr/bin/env php
-<?php
-
-/**
-
-title=测试 storyModel->getChangedStories();
-cid=0
-
-- 获取需求12关联的用户需求数量 @1
-- 获取需求12关联的用户需求详情
- - 第3条的title属性 @用户需求3
- - 第3条的type属性 @requirement
-
-*/
-include dirname(__FILE__, 5) . '/test/lib/init.php';
-su('admin');
-
-zenData('story')->gen(20);
-zenData('product')->gen(1);
-$story = zenData('story');
-$story->product->range(1);
-$story->version->range(1);
-$story->gen(20);
-
-zenData('storyspec')->gen(20);
-$relation = zenData('relation');
-$relation->AID->range('1,10,2,11,3,12,4,13,5,14,6,15,7,16,8,17');
-$relation->AVersion->range('1');
-$relation->BID->range('10,1,11,2,12,3,13,4,14,5,15,6,16,7,17,8');
-$relation->BVersion->range('1');
-$relation->gen(16);
-
-global $tester;
-$tester->loadModel('story');
-$story        = $tester->story->getById(12);
-$requirements = $tester->story->getChangedStories($story);
-
-r(count($requirements)) && p()               && e('1');                     // 获取需求12关联的用户需求数量
-r($requirements)        && p('3:title,type') && e('用户需求3,requirement'); // 获取需求12关联的用户需求详情
diff --git a/module/story/test/model/getdataofstoriesperassignedto.php b/module/story/test/model/getdataofstoriesperassignedto.php
index 1d8faae511..548c87c1ef 100755
--- a/module/story/test/model/getdataofstoriesperassignedto.php
+++ b/module/story/test/model/getdataofstoriesperassignedto.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->getDataOfStoriesPerAssignedTo();
+timeout=0
 cid=0
 
 - 按照需求指派人分组，获取分组后的需求数量 @4
@@ -28,4 +29,4 @@ $_SESSION['storyQueryCondition'] = "`id` < 20";
 $data = $tester->story->getDataOfStoriesPerAssignedTo();
 
 r(count($data)) && p()                   && e('4');       // 按照需求指派人分组，获取分组后的需求数量
-r($data)        && p('admin:name,value') && e('admin,5'); // 按照需求指派人分组，获取各个指派人名下的需求数量，查看admin下的数据
+r($data)        && p('admin:name,value') && e('admin,5'); // 按照需求指派人分组，获取各个指派人名下的需求数量，查看admin下的数据
\ No newline at end of file
diff --git a/module/story/test/model/getdataofstoriesperchange.php b/module/story/test/model/getdataofstoriesperchange.php
index ceb4a9604c..7b6282e73f 100755
--- a/module/story/test/model/getdataofstoriesperchange.php
+++ b/module/story/test/model/getdataofstoriesperchange.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->getDataOfStoriesPerChange();
+timeout=0
 cid=0
 
 - 按照需求版本号分组，获取分组后的需求数量 @4
@@ -31,4 +32,4 @@ $data = $tester->story->getDataOfStoriesPerChange();
 
 r(count($data)) && p()               && e('4');   // 按照需求版本号分组，获取分组后的需求数量
 r($data)        && p('0:name,value') && e('3,4'); // 按照需求版本号分组，获取各个版本号下的需求数量，查看admin下的数据
-r($data)        && p('2:value')      && e('5');   // 按照需求版本号分组，获取各个版本号下的需求数量，查看admin下的数据
+r($data)        && p('2:value')      && e('5');   // 按照需求版本号分组，获取各个版本号下的需求数量，查看admin下的数据
\ No newline at end of file
diff --git a/module/story/test/model/getdataofstoriesperclosedreason.php b/module/story/test/model/getdataofstoriesperclosedreason.php
index 5987cb5a4a..5ce948449c 100755
--- a/module/story/test/model/getdataofstoriesperclosedreason.php
+++ b/module/story/test/model/getdataofstoriesperclosedreason.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->getDataOfStoriesPerClosedReason();
+timeout=0
 cid=0
 
 - 按照需求关闭原因分组，获取分组后的需求数量 @7
@@ -38,4 +39,4 @@ $data = $tester->story->getDataOfStoriesPerClosedReason();
 r(count($data)) && p()                       && e('7');          // 按照需求关闭原因分组，获取分组后的需求数量
 r($data)        && p('willnotdo:name,value') && e('不做,3');     // 按照需求关闭原因分组，获取各个关闭原因下的需求数量，查看willnotdo的数据
 r($data)        && p('bydesign:name,value')  && e('设计如此,2'); // 按照需求关闭原因分组，获取各个关闭原因下的需求数量，查看bydesign的数据
-r($data)        && p('cancel:name,value')    && e('已取消,2');   // 按照需求关闭原因分组，获取各个关闭原因下的需求数量，查看cancel的数据
+r($data)        && p('cancel:name,value')    && e('已取消,2');   // 按照需求关闭原因分组，获取各个关闭原因下的需求数量，查看cancel的数据
\ No newline at end of file
diff --git a/module/story/test/model/getdataofstoriesperestimate.php b/module/story/test/model/getdataofstoriesperestimate.php
index aeb3e52db8..db1d7bc3a9 100755
--- a/module/story/test/model/getdataofstoriesperestimate.php
+++ b/module/story/test/model/getdataofstoriesperestimate.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->getDataOfStoriesPerEstimate();
+timeout=0
 cid=0
 
 - 按照需求预计工时分组，获取分组后的需求数量 @4
@@ -31,4 +32,4 @@ $data = $tester->story->getDataOfStoriesPerEstimate();
 
 r(count($data)) && p()               && e('4');    // 按照需求预计工时分组，获取分组后的需求数量
 r($data)        && p('0:name,value') && e('4,4');  // 按照需求预计工时分组，获取各个工时的需求数量，查看工时为19的数据
-r($data)        && p('1:value')      && e('5');    // 按照需求预计工时分组，获取各个工时的需求数量，查看工时为20的数据
+r($data)        && p('1:value')      && e('5');    // 按照需求预计工时分组，获取各个工时的需求数量，查看工时为20的数据
\ No newline at end of file
diff --git a/module/story/test/model/getdataofstoriespermodule.php b/module/story/test/model/getdataofstoriespermodule.php
index 5fb3f46c40..0a2e5a7f56 100755
--- a/module/story/test/model/getdataofstoriespermodule.php
+++ b/module/story/test/model/getdataofstoriespermodule.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->getDataOfStoriesPerModule();
+timeout=0
 cid=0
 
 - 按照模块分组，获取分组后的需求数量 @6
@@ -37,4 +38,4 @@ $_SESSION['storyQueryCondition'] = "`id` < 20";
 $data = $tester->story->getDataOfStoriesPerModule();
 
 r(count($data)) && p()                       && e('6');               // 按照模块分组，获取分组后的需求数量
-r($data)        && p('1:name,value,product') && e('/这是一个模块1,4,1'); // 按照模块分组，获取各个模块下的需求数量，查看模块2150下的数据
+r($data)        && p('1:name,value,product') && e('/这是一个模块1,4,1'); // 按照模块分组，获取各个模块下的需求数量，查看模块2150下的数据
\ No newline at end of file
diff --git a/module/story/test/model/getdataofstoriesperopenedby.php b/module/story/test/model/getdataofstoriesperopenedby.php
index f0b4cbc116..4d6b0f4677 100755
--- a/module/story/test/model/getdataofstoriesperopenedby.php
+++ b/module/story/test/model/getdataofstoriesperopenedby.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->getDataOfStoriesPerOpenedBy();
+timeout=0
 cid=0
 
 - 按照创建人分组，获取分组后的需求数量 @4
@@ -31,4 +32,4 @@ $_SESSION['storyQueryCondition'] = "`id` < 20";
 $data = $tester->story->getDataOfStoriesPerOpenedBy();
 
 r(count($data)) && p()                   && e('4');       // 按照创建人分组，获取分组后的需求数量
-r($data)        && p('user2:name,value') && e('用户2,5'); // 按照创建人分组，获取各个创建人的需求数量，查看用户test3下的数据
+r($data)        && p('user2:name,value') && e('用户2,5'); // 按照创建人分组，获取各个创建人的需求数量，查看用户test3下的数据
\ No newline at end of file
diff --git a/module/story/test/model/getdataofstoriesperplan.php b/module/story/test/model/getdataofstoriesperplan.php
index a6004e5a6f..cdd9b4c22f 100755
--- a/module/story/test/model/getdataofstoriesperplan.php
+++ b/module/story/test/model/getdataofstoriesperplan.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->getDataOfStoriesPerPlan();
+timeout=0
 cid=0
 
 - 按照计划分组，获取分组后的需求数量 @5
@@ -35,4 +36,4 @@ $data = $tester->story->getDataOfStoriesPerPlan();
 
 r(count($data)) && p()               && e('5');     // 按照计划分组，获取分组后的需求数量
 r($data)        && p('1:name,value') && e('1.0,4'); // 按照计划分组，获取各个计划的需求数量，查看1下的数据
-r($data)        && p('4:name,value') && e('1.0,4'); // 按照计划分组，获取各个计划的需求数量，查看4下的数据
+r($data)        && p('4:name,value') && e('1.0,4'); // 按照计划分组，获取各个计划的需求数量，查看4下的数据
\ No newline at end of file
diff --git a/module/story/test/model/getdataofstoriesperpri.php b/module/story/test/model/getdataofstoriesperpri.php
index a7257eaaaf..ab2c33dc0e 100755
--- a/module/story/test/model/getdataofstoriesperpri.php
+++ b/module/story/test/model/getdataofstoriesperpri.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->getDataOfStoriesPerPri();
+timeout=0
 cid=0
 
 - 按照优先级分组，获取分组后的需求数量 @4
@@ -35,4 +36,4 @@ $data = $tester->story->getDataOfStoriesPerPri();
 
 r(count($data)) && p()                && e('4');   // 按照优先级分组，获取分组后的需求数量
 r($data)        && p('1:name,value')  && e('1,5'); // 按照优先级分组，获取各个优先级的需求数量，查看优先级1下的数据
-r($data)        && p('4:name,value')  && e('4,4'); // 按照优先级分组，获取各个优先级的需求数量，查看优先级4下的数据
+r($data)        && p('4:name,value')  && e('4,4'); // 按照优先级分组，获取各个优先级的需求数量，查看优先级4下的数据
\ No newline at end of file
diff --git a/module/story/test/model/getdataofstoriesperproduct.php b/module/story/test/model/getdataofstoriesperproduct.php
index 5458526004..4dbebcb67a 100755
--- a/module/story/test/model/getdataofstoriesperproduct.php
+++ b/module/story/test/model/getdataofstoriesperproduct.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->getDataOfStoriesPerProduct();
+timeout=0
 cid=0
 
 - 按照产品分组，获取分组后的需求数量 @5
@@ -31,4 +32,4 @@ $_SESSION['storyQueryCondition'] = "`id` < 20";
 $data = $tester->story->getDataOfStoriesPerProduct();
 
 r(count($data)) && p()                && e('5');          // 按照产品分组，获取分组后的需求数量
-r($data)        && p('1:name,value') && e('正常产品1,4'); // 按照产品分组，获取各个产品下的需求数量，查看产品1下的数据
+r($data)        && p('1:name,value') && e('正常产品1,4'); // 按照产品分组，获取各个产品下的需求数量，查看产品1下的数据
\ No newline at end of file
diff --git a/module/story/test/model/getdataofstoriespersource.php b/module/story/test/model/getdataofstoriespersource.php
index be54ce1b31..be176d8817 100755
--- a/module/story/test/model/getdataofstoriespersource.php
+++ b/module/story/test/model/getdataofstoriespersource.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->getDataOfStoriesPerSource();
+timeout=0
 cid=0
 
 - 按照需求来源分组，获取分组后的需求数量 @14
@@ -35,4 +36,4 @@ $data = $tester->story->getDataOfStoriesPerSource();
 
 r(count($data)) && p()                     && e('14');          // 按照需求来源分组，获取分组后的需求数量
 r($data)        && p('support:name,value') && e('技术支持,1'); // 按照需求来源分组，获取各个需求来源的需求数量，查看support下的数据
-r($data)        && p('market:name,value')  && e('市场,2');     // 按照需求来源分组，获取各个需求来源的需求数量，查看market下的数据
+r($data)        && p('market:name,value')  && e('市场,2');     // 按照需求来源分组，获取各个需求来源的需求数量，查看market下的数据
\ No newline at end of file
diff --git a/module/story/test/model/getdataofstoriesperstage.php b/module/story/test/model/getdataofstoriesperstage.php
index 55bb0d53ac..75dec0a775 100755
--- a/module/story/test/model/getdataofstoriesperstage.php
+++ b/module/story/test/model/getdataofstoriesperstage.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->getDataOfStoriesPerStage();
+timeout=0
 cid=0
 
 - 按照需求阶段分组，获取分组后的需求数量 @10
@@ -38,4 +39,4 @@ $data = $tester->story->getDataOfStoriesPerStage();
 r(count($data)) && p()                      && e('10');       // 按照需求阶段分组，获取分组后的需求数量
 r($data)        && p('wait:name,value')     && e('未开始,1'); // 按照需求阶段分组，获取各个需求阶段的需求数量，查看wait下的数据
 r($data)        && p('planned:name,value')  && e('已计划,1'); // 按照需求阶段分组，获取各个需求阶段的需求数量，查看planned下的数据
-r($data)        && p('released:name,value') && e('已发布,1'); // 按照需求阶段分组，获取各个需求阶段的需求数量，查看released下的数据
+r($data)        && p('released:name,value') && e('已发布,1'); // 按照需求阶段分组，获取各个需求阶段的需求数量，查看released下的数据
\ No newline at end of file
diff --git a/module/story/test/model/getdataofstoriesperstatus.php b/module/story/test/model/getdataofstoriesperstatus.php
index 9f1dbe366e..abd6efcf89 100755
--- a/module/story/test/model/getdataofstoriesperstatus.php
+++ b/module/story/test/model/getdataofstoriesperstatus.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->getDataOfStoriesPerStatus();
+timeout=0
 cid=0
 
 - 按照需求状态分组，获取分组后的需求数量 @4
@@ -39,4 +40,4 @@ $data = $tester->story->getDataOfStoriesPerStatus();
 r(count($data)) && p()                    && e('4');        // 按照需求状态分组，获取分组后的需求数量
 r($data)        && p('draft:name,value')  && e('草稿,5');   // 按照需求状态分组，获取各个需求状态的需求数量，查看draft下的数据
 r($data)        && p('active:name,value') && e('激活,5');   // 按照需求状态分组，获取各个需求状态的需求数量，查看active下的数据
-r($data)        && p('closed:name,value') && e('已关闭,5'); // 按照需求状态分组，获取各个需求状态的需求数量，查看closed下的数据
+r($data)        && p('closed:name,value') && e('已关闭,5'); // 按照需求状态分组，获取各个需求状态的需求数量，查看closed下的数据
\ No newline at end of file
diff --git a/module/story/test/model/getexportstories.php b/module/story/test/model/getexportstories.php
old mode 100644
new mode 100755
index e6be25458d..203333c328
--- a/module/story/test/model/getexportstories.php
+++ b/module/story/test/model/getexportstories.php
@@ -4,15 +4,15 @@
 /**
 
 title=测试 storyModel->getExportStories();
+timeout=0
 cid=0
 
 - 查看只保存导出条件，导出选中需求数 @2
 - 查看只保存导出条件，导出全部需求数 @9
 - 查看保存全部导出SQL，导出选中需求数 @2
 - 查看保存全部导出SQL，导出全部需求数 @5
-- 查看需求的id顺序 @9|8|7|6|5|4|2|3|1
+- 查看需求的id顺序 @9|8|7|6|5|4|3|2|1
 - 查看需求ID为2的数据信息。
- - 第2条的parent属性 @`-1`
  - 第2条的title属性 @用户需求版本一2
  - 第2条的spec属性 @这是一个软件需求描述2
  - 第2条的verify属性 @这是一个需求验收2
@@ -60,5 +60,5 @@ r(count($stories2)) && p() && e('9');  //查看只保存导出条件，导出全
 r(count($stories3)) && p() && e('2');  //查看保存全部导出SQL，导出选中需求数
 r(count($stories4)) && p() && e('5');  //查看保存全部导出SQL，导出全部需求数
 
-r(implode('|', array_keys($stories2))) && p() && e('9|8|7|6|5|4|2|3|1');  //查看需求的id顺序
-r($stories2) && p('2:parent,title,spec,verify,bugCountAB') && e('`-1`,用户需求版本一2,这是一个软件需求描述2,这是一个需求验收2,1');  //查看需求ID为2的数据信息。
+r(implode('|', array_keys($stories2))) && p() && e('9|8|7|6|5|4|3|2|1');  //查看需求的id顺序
+r($stories2) && p('2:title,spec,verify,bugCountAB') && e('用户需求版本一2,这是一个软件需求描述2,这是一个需求验收2,1');  //查看需求ID为2的数据信息。
\ No newline at end of file
diff --git a/module/story/test/model/getparentstorypairs.php b/module/story/test/model/getparentstorypairs.php
index 62bc535770..3418143526 100755
--- a/module/story/test/model/getparentstorypairs.php
+++ b/module/story/test/model/getparentstorypairs.php
@@ -4,13 +4,12 @@
 /**
 
 title=测试 storyModel->getParentStoryPairs();
+timeout=0
 cid=0
 
-- 第91个元素和第0个元素的值
- - 属性91 @用户需求91
- -  @~~
-- 获取符合条件的需求数 @5
-- 测试附加的需求ID1，需求1以数字1结尾属性1 @~f:1$~
+- 获取ID为3的父需求的标题第3条的keys属性 @用户需求9
+- 获取符合条件的需求数 @3
+- 测试附加的需求ID1，需求1以数字1结尾第0条的keys属性 @软件需求2
 
 */
 
@@ -31,19 +30,24 @@ $story->status->range('active,draft');
 $story->product->range('1{10},2{5},3{5},4{70},5{10}');
 $story->parent->range('0,1');
 $story->plan->range('0,1');
+$story->version->range('1');
+$story->grade->range('1{10},2{10}');
 $story->gen(100);
 
+zenData('storyspec')->gen(100);
+zenData('storygrade')->gen(6);
+
 $product = zenData('product');
 $product->gen(5);
 
 global $tester;
 $tester->loadModel('story');
-$stories = $tester->story->getParentStoryPairs(5);
+$stories = $tester->story->getParentStoryPairs(1);
 
-r($stories) && p('91,0') && e('用户需求91,~~'); // 第91个元素和第0个元素的值
+r($stories) && p('3:keys') && e('用户需求9'); // 获取ID为3的父需求的标题
 
 array_pop($stories); /* remove empty item at array top. */
-r(count($stories)) && p() && e(5);  // 获取符合条件的需求数
+r(count($stories)) && p() && e(3);  // 获取符合条件的需求数
 
-$storiesWithAppended = $tester->story->getParentStoryPairs(5, 1);
-r($storiesWithAppended) && p('1') && e('~f:1$~'); // 测试附加的需求ID1，需求1以数字1结尾
+$storiesWithAppended = $tester->story->getParentStoryPairs(5, 2);
+r($storiesWithAppended) && p('0:keys') && e('软件需求2'); // 测试附加的需求ID1，需求1以数字1结尾
\ No newline at end of file
diff --git a/module/story/test/model/getproductstorypairs.php b/module/story/test/model/getproductstorypairs.php
index 65b88018ef..8fab8e03b7 100755
--- a/module/story/test/model/getproductstorypairs.php
+++ b/module/story/test/model/getproductstorypairs.php
@@ -4,9 +4,10 @@
 /**
 
 title=测试 storyModel->getProductStoryPairs();
+timeout=0
 cid=0
 
-- 获取产品1下的所有软件需求数量 @2
+- 获取产品1下的所有软件需求数量 @4
 - 获取产品1下的所有用户需求数量 @1
 - 查看通过产品1获取的软件需求的名称字段
  - 属性4 @4:软件需求4 (优先级:4,预计工时:4)
@@ -29,7 +30,7 @@ $tester->loadModel('story');
 $stories1 = $tester->story->getProductStoryPairs(1);
 $stories2 = $tester->story->getProductStoryPairs(3, 0, 1830, 'all', 'id_asc', 0, 'full', 'story', true);
 
-r(count($stories1)) && p()               && e('2'); // 获取产品1下的所有软件需求数量
+r(count($stories1)) && p()               && e('4'); // 获取产品1下的所有软件需求数量
 r(count($stories2)) && p()               && e('1'); // 获取产品1下的所有用户需求数量
 r($stories1)        && p('4|2', '|')     && e('4:软件需求4 (优先级:4,预计工时:4)|2:软件需求2 (优先级:2,预计工时:2)'); // 查看通过产品1获取的软件需求的名称字段
-r($stories2)        && p('10', '|')      && e('10:软件需求10 (优先级:2,预计工时:2)'); // 查看通过产品3获取的软件需求的键值对详情
+r($stories2)        && p('10', '|')      && e('10:软件需求10 (优先级:2,预计工时:2)'); // 查看通过产品3获取的软件需求的键值对详情
\ No newline at end of file
diff --git a/module/story/test/model/getrelationstoryid.php b/module/story/test/model/getrelationstoryid.php
deleted file mode 100755
index 1d62162be5..0000000000
--- a/module/story/test/model/getrelationstoryid.php
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/usr/bin/env php
-<?php
-
-/**
-
-title=测试 storyModel->getStoryRelation();
-cid=0
-
-*/
-include dirname(__FILE__, 5) . '/test/lib/init.php';
-su('admin');
-
-zenData('storyspec')->gen(60);
-$story = zenData('story');
-$story->product->range(1);
-$story->parent->range('0{18},`-1`,19');
-$story->type->range('requirement{10},story{10}');
-$story->gen(20);
-
-$relation = zenData('relation');
-$relation->product->range(1);
-$relation->AID->range('1,11,1,2,12,2,3,13,3,4,14,4,5,15,5,6,16,6,7,17,7,8,18,8');
-$relation->BID->range('11,1,1,12,2,2,13,3,3,14,4,4,15,5,5,16,6,6,17,7,7,18,8,8');
-$relation->AType->range('requirement,story,design');
-$relation->BType->range('story,requirement,commit');
-$relation->relation->range('subdivideinto,subdividedfrom,completedin');
-$relation->gen(24);
-
-global $tester;
-$relations1 = $tester->loadModel('story')->getRelationStoryID(1, 'requirement');
-$relations2 = $tester->story->getRelationStoryID(11, 'story');
-
-r($relations1) && p() && e('11'); // 获取用户需求1关联的软件需求
-r($relations2) && p() && e('1');  // 获取软件需求11关联的用户需求
diff --git a/module/story/test/model/getreviewresult.php b/module/story/test/model/getreviewresult.php
index 5edc489888..77aced2261 100755
--- a/module/story/test/model/getreviewresult.php
+++ b/module/story/test/model/getreviewresult.php
@@ -4,9 +4,10 @@
 /**
 
 title=测试 storyModel->getReviewResult();
+timeout=0
 cid=0
 
-- 传入空参数  @pass
+- 传入空参数 @pass
 - 设置 allpass，都是传入pass结果 @pass
 - 设置 allpass，传入 pass 和 reject @reject
 - 设置 allpass，传入 clarify 和 pass @clarify
@@ -15,7 +16,7 @@ cid=0
 - 设置 allpass，传入 clarify @clarify
 - 设置 allpass，传入 revert @revert
 - 设置 allpass，传入 reject @reject
-- 设置 halfpass，传入 pass 和 reject @pass
+- 设置 halfpass，传入 pass 和 reject @reject
 
 */
 include dirname(__FILE__, 5) . '/test/lib/init.php';
@@ -38,4 +39,4 @@ r($storyModel->getReviewResult(array('revert',  '', '', ''))) && p() && e('rever
 r($storyModel->getReviewResult(array('reject',  '', '', ''))) && p() && e('reject');  //设置 allpass，传入 reject
 
 $storyModel->config->story->reviewRules = 'halfpass';
-r($storyModel->getReviewResult(array('pass', 'pass', 'reject'))) && p() && e('pass'); //设置 halfpass，传入 pass 和 reject
+r($storyModel->getReviewResult(array('pass', 'pass', 'reject'))) && p() && e('reject'); //设置 halfpass，传入 pass 和 reject
\ No newline at end of file
diff --git a/module/story/test/model/getstories2link.php b/module/story/test/model/getstories2link.php
index cc3ed7274f..26110b5c16 100755
--- a/module/story/test/model/getstories2link.php
+++ b/module/story/test/model/getstories2link.php
@@ -33,14 +33,14 @@ $relation->AID->range('1,11,1,2,12,2,3,13,3,4,14,4,5,15,5,6,16,6,7,17,7,8,18,8')
 $relation->BID->range('11,1,1,12,2,2,13,3,3,14,4,4,15,5,5,16,6,6,17,7,7,18,8,8');
 $relation->AType->range('requirement,story,design');
 $relation->BType->range('story,requirement,commit');
-$relation->relation->range('subdivideinto,subdividedfrom,completedin');
+$relation->relation->range('linkedto,linkedfrom,completedin');
 $relation->gen(24);
 
 global $tester;
-$stories1 = $tester->loadModel('story')->getStories2Link(1, 'linkStories', 'bySearch', 0, 'requirement');
+$stories1 = $tester->loadModel('story')->getStories2Link(1, 'bySearch', 0);
 $stories2 = $tester->loadModel('story')->getStories2Link(2);
 
-r(count($stories1)) && p()                 && e('9');             // 获取需求1可关联的需求数量
-r(count($stories2)) && p()                 && e('3');             // 获取需求2可关联的需求数量
-r($stories1)        && p('12:type,product') && e('story,1');       // 获取需求1可关联的需求id、product
-r($stories2)        && p('2:type,product') && e('requirement,1'); // 获取需求2可关联的需求id、product
+r(count($stories1)) && p()                  && e('18');             // 获取需求1可关联的需求数量
+r(count($stories2)) && p()                  && e('18');             // 获取需求2可关联的需求数量
+r($stories1)        && p('12:type,product') && e('story,1');        // 获取需求12可关联的需求id、product
+r($stories2)        && p('3:type,product')  && e('requirement,1');  // 获取需求3可关联的需求id、product
diff --git a/module/story/test/model/getstoryrelation.php b/module/story/test/model/getstoryrelation.php
index 22c8ffacdf..735952053b 100755
--- a/module/story/test/model/getstoryrelation.php
+++ b/module/story/test/model/getstoryrelation.php
@@ -34,14 +34,14 @@ $relation->AID->range('1,11,1,2,12,2,3,13,3,4,14,4,5,15,5,6,16,6,7,17,7,8,18,8')
 $relation->BID->range('11,1,1,12,2,2,13,3,3,14,4,4,15,5,5,16,6,6,17,7,7,18,8,8');
 $relation->AType->range('requirement,story,design');
 $relation->BType->range('story,requirement,commit');
-$relation->relation->range('subdivideinto,subdividedfrom,completedin');
+$relation->relation->range('linkedto,linkedfrom,completedin');
 $relation->gen(24);
 
 global $tester;
 $relations1 = $tester->loadModel('story')->getStoryRelation(1, 'requirement');
 $relations2 = $tester->story->getStoryRelation(11, 'story');
 
-r(count($relations1)) && p()                    && e('1');                           // 获取用户需求1关联的软件需求数量
-r(count($relations2)) && p()                    && e('1');                           // 获取软件需求11关联的用户需求数量
-r($relations1[0])     && p('title,type,status') && e('用户需求11,story,closed');     // 获取用户需求1关联的软件需求详情
-r($relations2[0])     && p('title,type,status') && e('用户需求1,requirement,draft'); // 获取软件需求11关联的用户需求详情
+r(count($relations1))         && p()                       && e('1');                           // 获取用户需求1关联的软件需求数量
+r(count($relations2))         && p()                       && e('1');                           // 获取软件需求11关联的用户需求数量
+r($relations1['story'])       && p('11:title,type,status') && e('用户需求11,story,closed');     // 获取用户需求1关联的软件需求详情
+r($relations2['requirement']) && p('1:title,type,status')  && e('用户需求1,requirement,draft'); // 获取软件需求11关联的用户需求详情
diff --git a/module/story/test/model/gettoandcclist.php b/module/story/test/model/gettoandcclist.php
index a4343a9d77..edb7033449 100755
--- a/module/story/test/model/gettoandcclist.php
+++ b/module/story/test/model/gettoandcclist.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->getToAndCcList();
+timeout=0
 cid=0
 
 - 获取创建需求1时的通知人数量 @2
@@ -11,7 +12,7 @@ cid=0
 - 获取变更需求1时的通知人数量 @2
 - 获取创建需求1时的通知人详情 @admin
 - 获取评审需求1时的通知人详情 @admin
-- 获取变更需求1时的通知人详情 @user92,
+- 获取变更需求1时的通知人详情 @,
 
 */
 include dirname(__FILE__, 5) . '/test/lib/init.php';
@@ -27,9 +28,9 @@ $dataList1 = $tester->story->getToAndCcList($story1, 'opened');
 $dataList2 = $tester->story->getToAndCcList($story1, 'reviewed');
 $dataList3 = $tester->story->getToAndCcList($story1, 'changed');
 
-r(count($dataList1)) && p() && e('2');       //获取创建需求1时的通知人数量
-r(count($dataList2)) && p() && e('2');       //获取评审需求1时的通知人数量
-r(count($dataList3)) && p() && e('2');       //获取变更需求1时的通知人数量
-r($dataList1[0])     && p() && e('admin');   //获取创建需求1时的通知人详情
-r($dataList2[0])     && p() && e('admin');   //获取评审需求1时的通知人详情
-r($dataList3[1])     && p() && e('user92,'); //获取变更需求1时的通知人详情
+r(count($dataList1)) && p() && e('2');     //获取创建需求1时的通知人数量
+r(count($dataList2)) && p() && e('2');     //获取评审需求1时的通知人数量
+r(count($dataList3)) && p() && e('2');     //获取变更需求1时的通知人数量
+r($dataList1[0])     && p() && e('admin'); //获取创建需求1时的通知人详情
+r($dataList2[0])     && p() && e('admin'); //获取评审需求1时的通知人详情
+r($dataList3[1])     && p() && e(',');     //获取变更需求1时的通知人详情
\ No newline at end of file
diff --git a/module/story/test/model/gettrackbyid.php b/module/story/test/model/gettrackbyid.php
deleted file mode 100755
index 8f3b26905e..0000000000
--- a/module/story/test/model/gettrackbyid.php
+++ /dev/null
@@ -1,68 +0,0 @@
-#!/usr/bin/env php
-<?php
-
-/**
-
-title=测试 storyModel->getTrackByID();
-cid=0
-
-- 获取用户需求1下面的所有任务数量 @8
-- 获取用户需求1下面的所有用例数量 @5
-- 获取用户需求1下面的所有Bug数量 @5
-- 获取用户需求1下面的任务8的名字属性name @开发任务18
-- 获取用户需求的信息属性title @用户需求11
-
-*/
-include dirname(__FILE__, 5) . '/test/lib/init.php';
-su('admin');
-
-zenData('product')->gen(2);
-zenData('storyspec')->gen(60);
-$story = zenData('story');
-$story->product->range(1);
-$story->parent->range('0{18},`-1`,19');
-$story->type->range('requirement{10},story{10}');
-$story->gen(20);
-
-$projectstory = zenData('projectstory');
-$projectstory->project->range(1);
-$projectstory->product->range(1);
-$projectstory->story->range('1-18');
-$projectstory->gen(18);
-
-$case = zenData('case');
-$case->story->range(11);
-$case->gen(5);
-
-$bug = zenData('bug');
-$bug->story->range(11);
-$bug->gen(5);
-
-$task = zenData('task');
-$task->story->range('11{8},19{2}');
-$task->parent->range('0{8},`-1`,9');
-$task->gen(10);
-
-$design = zenData('design');
-$design->story->range(11);
-$design->gen(10);
-
-$relation = zenData('relation');
-$relation->product->range(1);
-$relation->AID->range('1,11,1,2,12,2,3,13,3,4,14,4,5,15,5,6,16,6,7,17,7,8,18,8');
-$relation->BID->range('11,1,1,12,2,2,13,3,3,14,4,4,15,5,5,16,6,6,17,7,7,18,8,8');
-$relation->AType->range('requirement,story,design');
-$relation->BType->range('story,requirement,commit');
-$relation->relation->range('subdivideinto,subdividedfrom,completedin');
-$relation->gen(24);
-
-zenData('repohistory')->gen(10);
-
-global $tester;
-$story1Tracks = $tester->loadModel('story')->getTrackByID(1);
-
-r(count($story1Tracks[11]->tasks)) && p()        && e('8');          //获取用户需求1下面的所有任务数量
-r(count($story1Tracks[11]->cases)) && p()        && e('5');          //获取用户需求1下面的所有用例数量
-r(count($story1Tracks[11]->bugs))  && p()        && e('5');          //获取用户需求1下面的所有Bug数量
-r($story1Tracks[11]->tasks[8])     && p('name')  && e('开发任务18'); //获取用户需求1下面的任务8的名字
-r($story1Tracks[11])               && p('title') && e('用户需求11'); //获取用户需求的信息
diff --git a/module/story/test/model/gettracksbystories.php b/module/story/test/model/gettracksbystories.php
new file mode 100644
index 0000000000..a4d08ce936
--- /dev/null
+++ b/module/story/test/model/gettracksbystories.php
@@ -0,0 +1,28 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 storyModel->getTracksByStories();
+cid=0
+
+*/
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+
+zenData('story')->gen(10);
+
+su('admin');
+
+global $tester;
+$tester->loadModel('story');
+
+$tester->story->lang->ERCommon = '业务需求';
+$tester->story->lang->URCommon = '用户需求';
+$tester->story->lang->SRCommon = '研发需求';
+
+$tracks = $tester->story->getTracksByStories(array(), 'epic');
+r(empty($tracks)) && p() && e('1');  //传入空参数。
+
+$stories = $tester->story->dao->select('*')->from(TABLE_STORY)->where('id')->in(array('2,3,4,5'))->fetchAll('id');
+$tracks = $tester->story->getTracksByStories($stories, 'epic');
+r(isset($tracks['lanes']) && isset($tracks['cols']) && isset($tracks['items'])) && p() && e('1'); //检查返回数据的 lanes，cols，items。
diff --git a/module/story/test/model/isclickable.php b/module/story/test/model/isclickable.php
index 4d2a2bff70..5dd04dafa8 100755
--- a/module/story/test/model/isclickable.php
+++ b/module/story/test/model/isclickable.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->isclickable();
+timeout=0
 cid=0
 
 - 判断需求2是否有变更按钮操作权限 @1
@@ -12,7 +13,7 @@ cid=0
 - 判断需求2是否有激活按钮操作权限 @0
 - 判断需求2是否有指派按钮操作权限 @1
 - 判断需求2是否有创建用例按钮操作权限 @1
-- 判断需求2是否有批量创建按钮操作权限 @0
+- 判断需求2是否有批量创建按钮操作权限 @1
 
 */
 include dirname(__FILE__, 5) . '/test/lib/init.php';
@@ -30,4 +31,4 @@ r($storyModel::isClickable($story, 'close'))       && p() && e('1'); // 判断
 r($storyModel::isClickable($story, 'activate'))    && p() && e('0'); // 判断需求2是否有激活按钮操作权限
 r($storyModel::isClickable($story, 'assignto'))    && p() && e('1'); // 判断需求2是否有指派按钮操作权限
 r($storyModel::isClickable($story, 'createcase'))  && p() && e('1'); // 判断需求2是否有创建用例按钮操作权限
-r($storyModel::isClickable($story, 'batchcreate')) && p() && e('0'); // 判断需求2是否有批量创建按钮操作权限
+r($storyModel::isClickable($story, 'batchcreate')) && p() && e('1'); // 判断需求2是否有批量创建按钮操作权限
\ No newline at end of file
diff --git a/module/story/test/model/linkstories.php b/module/story/test/model/linkstories.php
index b3547b1c85..d7980d208b 100755
--- a/module/story/test/model/linkstories.php
+++ b/module/story/test/model/linkstories.php
@@ -1,36 +1,41 @@
 #!/usr/bin/env php
 <?php
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+include dirname(__FILE__, 2) . '/story.class.php';
+su('admin');
+
+$story = zenData('story');
+$story->product->range(1);
+$story->version->range(1);
+$story->parent->range('0{18},`-1`,19');
+$story->type->range('requirement{10},story{10}');
+$story->gen(20);
+
+zenData('storyspec')->gen(60);
+$relation = zenData('relation');
+$relation->gen(0);
 
 /**
 
 title=测试 storyModel->linkStories();
-cid=0
+timeout=0
+cid=1
 
 - 查看关联前的关联关系数量 @0
 - 查看关联后的关联关系数量 @4
 - 查看关联后的需求详情 @1|3|5|7
 
 */
-include dirname(__FILE__, 5) . '/test/lib/init.php';
-include dirname(__FILE__, 2) . '/lib/story.unittest.class.php';
-su('admin');
-
-zenData('story')->gen(20);
-zenData('storyspec')->gen(60);
-$relation = zenData('relation');
-$relation->gen(0);
-
 global $tester;
 $tester->loadModel('story');
 
 $beforeRelations = $tester->story->getRelation(1, 'requirement');
 
 $storyIdList = array(1, 3, 5, 7);
-$_POST['stories'] = $storyIdList;
-$tester->story->linkStories(1);
+$tester->story->linkStories(1, $storyIdList);
 
 $afterRelations = $tester->story->getRelation(1, 'requirement');
 
 r(count($beforeRelations))       && p() && e('0');       // 查看关联前的关联关系数量
 r(count($afterRelations))        && p() && e('4');       // 查看关联后的关联关系数量
-r(implode('|', $afterRelations)) && p() && e('1|3|5|7'); // 查看关联后的需求详情
+r(implode('|', $afterRelations)) && p() && e('1|3|5|7'); // 查看关联后的需求详情
\ No newline at end of file
diff --git a/module/story/test/model/mergereviewer.php b/module/story/test/model/mergereviewer.php
index 8e5bc94e54..4b88b2b74f 100755
--- a/module/story/test/model/mergereviewer.php
+++ b/module/story/test/model/mergereviewer.php
@@ -4,18 +4,15 @@
 /**
 
 title=测试 storyModel->mergeReviewer();
+timeout=0
 cid=0
 
 - 获取需求2的评审人 @admin|user1|user2
 - 获取需求2的待评审人 @admin|user1
 - 获取需求18的评审人 @admin|user1|user2
 - 获取需求18的待评审人 @admin|user1
-- 获取需求18子需求的评审人 @admin|user1|user2
-- 获取需求18子需求的待评审人 @admin|user1
 - 批量获取需求18的评审人 @admin|user1|user2
 - 批量获取需求18的待评审人 @admin|user1
-- 批量获取需求18子需求的评审人 @admin|user1|user2
-- 批量获取需求18子需求的待评审人 @admin|user1
 
 */
 include dirname(__FILE__, 5) . '/test/lib/init.php';
@@ -28,7 +25,6 @@ $story->plan->range('0,1,0{100}');
 $story->duplicateStory->range('0,4,0{100}');
 $story->linkStories->range('0,6,0{100}');
 $story->linkRequirements->range('3,0{100}');
-$story->childStories->range('0,8,0{100}');
 $story->toBug->range('0{9},1,0{100}');
 $story->parent->range('0{17},`-1`,0,18,0{100}');
 $story->twins->range('``{27},30,``,28');
@@ -46,18 +42,14 @@ global $tester;
 $story = $tester->loadModel('story')->getById(2);
 $story = $tester->story->mergeReviewer($story, true);
 r(implode('|', $story->reviewer))  && p()  && e('admin|user1|user2'); // 获取需求2的评审人
-r(implode('|', $story->notReview)) && p()  && e('admin|user1');       // 获取需求2的待评审人
+r(implode('|', $story->notReview)) && p()  && e('admin|user1'); // 获取需求2的待评审人
 
 $story = $tester->loadModel('story')->getById(18);
 $story = $tester->story->mergeReviewer($story, true);
-r(implode('|', $story->reviewer))  && p()  && e('admin|user1|user2');               // 获取需求18的评审人
-r(implode('|', $story->notReview)) && p()  && e('admin|user1');                     // 获取需求18的待评审人
-r(implode('|', $story->children[20]->reviewer))  && p()  && e('admin|user1|user2'); // 获取需求18子需求的评审人
-r(implode('|', $story->children[20]->notReview)) && p()  && e('admin|user1');       // 获取需求18子需求的待评审人
+r(implode('|', $story->reviewer))  && p()  && e('admin|user1|user2'); // 获取需求18的评审人
+r(implode('|', $story->notReview)) && p()  && e('admin|user1'); // 获取需求18的待评审人
 
 $stories = $tester->story->mergeReviewer(array(18 => $story));
 
-r(implode('|', $stories[18]->reviewer))  && p()  && e('admin|user1|user2');               // 批量获取需求18的评审人
-r(implode('|', $stories[18]->notReview)) && p()  && e('admin|user1');                     // 批量获取需求18的待评审人
-r(implode('|', $stories[18]->children[20]->reviewer))  && p()  && e('admin|user1|user2'); // 批量获取需求18子需求的评审人
-r(implode('|', $stories[18]->children[20]->notReview)) && p()  && e('admin|user1');       // 批量获取需求18子需求的待评审人
+r(implode('|', $stories[18]->reviewer))  && p()  && e('admin|user1|user2'); // 批量获取需求18的评审人
+r(implode('|', $stories[18]->notReview)) && p()  && e('admin|user1'); // 批量获取需求18的待评审人
\ No newline at end of file
diff --git a/module/story/test/model/recallchange.php b/module/story/test/model/recallchange.php
index 339f9c20d8..fb6da8f9b6 100644
--- a/module/story/test/model/recallchange.php
+++ b/module/story/test/model/recallchange.php
@@ -29,7 +29,6 @@ $story->plan->range('0,1,0{100}');
 $story->duplicateStory->range('0,4,0{100}');
 $story->linkStories->range('0,6,0{100}');
 $story->linkRequirements->range('3,0{100}');
-$story->childStories->range('0,8,0{100}');
 $story->toBug->range('0{9},1,0{100}');
 $story->parent->range('0{17},`-1`,0,18,0{100}');
 $story->twins->range('``{27},30,``,28');
diff --git a/module/story/test/model/recallreview.php b/module/story/test/model/recallreview.php
index 37277c34c1..832a9d4698 100644
--- a/module/story/test/model/recallreview.php
+++ b/module/story/test/model/recallreview.php
@@ -21,7 +21,6 @@ $story->plan->range('0,1,0{100}');
 $story->duplicateStory->range('0,4,0{100}');
 $story->linkStories->range('0,6,0{100}');
 $story->linkRequirements->range('3,0{100}');
-$story->childStories->range('0,8,0{100}');
 $story->toBug->range('0{9},1,0{100}');
 $story->parent->range('0{17},`-1`,0,18,0{100}');
 $story->twins->range('``{27},30,``,28');
diff --git a/module/story/test/model/recordreviewaction.php b/module/story/test/model/recordreviewaction.php
index 1b4d2e5805..e3a71b4913 100755
--- a/module/story/test/model/recordreviewaction.php
+++ b/module/story/test/model/recordreviewaction.php
@@ -26,7 +26,6 @@ $story->plan->range('0,1,0{100}');
 $story->duplicateStory->range('0,4,0{100}');
 $story->linkStories->range('0,6,0{100}');
 $story->linkRequirements->range('3,0{100}');
-$story->childStories->range('0,8,0{100}');
 $story->toBug->range('0{9},1,0{100}');
 $story->parent->range('0{17},`-1`,0,18,0{100}');
 $story->twins->range('``{27},30,``,28');
diff --git a/module/story/test/model/replaceurlang.php b/module/story/test/model/replaceurlang.php
old mode 100644
new mode 100755
index 1d8408543d..932c9eea52
--- a/module/story/test/model/replaceurlang.php
+++ b/module/story/test/model/replaceurlang.php
@@ -4,12 +4,13 @@
 /**
 
 title=测试 storyModel->replaceURLang();
+timeout=0
 cid=0
 
 - 查看更换语言之前的create属性create @提研发需求
 - 查看更换语言之前的create属性create @提用户需求
 - 查看更换语言之前的common属性common @研发需求
-- 查看更换语言之前的common属性common @用户需求
+- 查看更换语言之前的common属性common @研发需求
 - 查看更换语言之前的title属性title @研发需求名称
 - 查看更换语言之前的title属性title @用户需求名称
 
@@ -32,7 +33,7 @@ r($beforeLang) && p('create') && e('提研发需求');  //查看更换语言之
 r($afterLang)  && p('create') && e('提用户需求');  //查看更换语言之前的create
 
 r($beforeLang) && p('common') && e('研发需求');    //查看更换语言之前的common
-r($afterLang)  && p('common') && e('用户需求');    //查看更换语言之前的common
+r($afterLang)  && p('common') && e('研发需求');    //查看更换语言之前的common
 
 r($beforeLang) && p('title') && e('研发需求名称'); //查看更换语言之前的title
-r($afterLang)  && p('title') && e('用户需求名称'); //查看更换语言之前的title
+r($afterLang)  && p('title') && e('用户需求名称'); //查看更换语言之前的title
\ No newline at end of file
diff --git a/module/story/test/model/reportcondition.php b/module/story/test/model/reportcondition.php
index 6f445894c4..a867ca3ace 100755
--- a/module/story/test/model/reportcondition.php
+++ b/module/story/test/model/reportcondition.php
@@ -4,11 +4,12 @@
 /**
 
 title=测试 storyModel->reportCondition();
+timeout=0
 cid=0
 
-- 执行story模块的reportCondition方法  @1=1
-- 执行story模块的reportCondition方法  @`title` like '%aa%'
-- 执行story模块的reportCondition方法  @id in (SELECT t1.id FROM `zt_story` AS t1 WHERE t1.`title` like '%aa%')
+- 执行story模块的reportCondition方法，参数是'story'  @1=1
+- 执行story模块的reportCondition方法，参数是'story'  @`title` like '%aa%'
+- 执行story模块的reportCondition方法，参数是'story'  @id in (SELECT t1.id FROM `zt_story` AS t1 WHERE t1.`title` like '%aa%')
 
 */
 include dirname(__FILE__, 5) . '/test/lib/init.php';
@@ -16,12 +17,12 @@ su('admin');
 global $tester;
 $tester->loadModel('story');
 
-r($tester->story->reportCondition()) && p() && e('1=1');
+r($tester->story->reportCondition('story')) && p() && e('1=1');
 
 $_SESSION['storyOnlyCondition']  = true;
 $_SESSION['storyQueryCondition'] = "`title` like '%aa%'";
-r($tester->story->reportCondition()) && p() && e("`title` like '%aa%'");
+r($tester->story->reportCondition('story')) && p() && e("`title` like '%aa%'");
 
 $_SESSION['storyOnlyCondition']  = false;
 $_SESSION['storyQueryCondition'] = "SELECT * FROM `zt_story` AS t1 WHERE t1.`title` like '%aa%'";
-r($tester->story->reportCondition()) && p() && e("id in (SELECT t1.id FROM `zt_story` AS t1 WHERE t1.`title` like '%aa%')");
+r($tester->story->reportCondition('story')) && p() && e("id in (SELECT t1.id FROM `zt_story` AS t1 WHERE t1.`title` like '%aa%')");
\ No newline at end of file
diff --git a/module/story/test/model/review.php b/module/story/test/model/review.php
index 84afbf3065..99b12d3f8a 100755
--- a/module/story/test/model/review.php
+++ b/module/story/test/model/review.php
@@ -20,7 +20,6 @@ $story->plan->range('0,1,0{100}');
 $story->duplicateStory->range('0,4,0{100}');
 $story->linkStories->range('0,6,0{100}');
 $story->linkRequirements->range('3,0{100}');
-$story->childStories->range('0,8,0{100}');
 $story->toBug->range('0{9},1,0{100}');
 $story->parent->range('0{17},`-1`,0,18,0{100}');
 $story->twins->range('``{27},30,``,28');
diff --git a/module/story/test/model/setstage.php b/module/story/test/model/setstage.php
index f52d58031e..190bab9193 100755
--- a/module/story/test/model/setstage.php
+++ b/module/story/test/model/setstage.php
@@ -4,13 +4,14 @@
 /**
 
 title=测试 storyModel->setStage();
+timeout=0
 cid=0
 
 - 不传入需求; @0
-- 传入已经分解任务的需求，检查需求阶段。属性stage @testing
+- 传入已经分解任务的需求，检查需求阶段。属性stage @planning
 - 传入已关闭的需求，检查需求阶段。属性stage @closed
 - 传入只关联的计划的需求，检查需求阶段。属性stage @planned
-- 传入只关联的项目的需求，检查需求阶段。属性stage @projected
+- 传入只关联的项目的需求，检查需求阶段。属性stage @planning
 - 传入关联多分支，并分解成任务的需求，检查需求阶段。属性stage @testing
 - 传入关联多分支，并分解成任务的需求，检查分支 0 的需求阶段。属性stage @testing
 - 传入关联多分支，并分解成任务的需求，检查分支 1 的需求阶段。属性stage @tested
@@ -47,6 +48,7 @@ $story = zenData('story');
 $story->product->range('1,2,2,1,1');
 $story->plan->range('1,0,1,1,1');
 $story->branch->range('0,0,1,0,0');
+$story->stage->range('defining,testing,closed,planned,planning');
 $story->gen(5);
 
 $task = zenData('task');
@@ -71,13 +73,13 @@ $storyModel = $tester->loadModel('story');
 r($storyModel->setStage(0)) && p() && e('0'); //不传入需求;
 
 $storyTest = new storyTest();
-r($storyTest->setStageTest(1)) && p('stage') && e('testing');   //传入已经分解任务的需求，检查需求阶段。
-r($storyTest->setStageTest(3)) && p('stage') && e('closed');    //传入已关闭的需求，检查需求阶段。
-r($storyTest->setStageTest(4)) && p('stage') && e('planned');   //传入只关联的计划的需求，检查需求阶段。
-r($storyTest->setStageTest(5)) && p('stage') && e('projected'); //传入只关联的项目的需求，检查需求阶段。
+r($storyTest->setStageTest(1)) && p('stage') && e('planning'); //传入已经分解任务的需求，检查需求阶段。
+r($storyTest->setStageTest(3)) && p('stage') && e('closed');   //传入已关闭的需求，检查需求阶段。
+r($storyTest->setStageTest(4)) && p('stage') && e('planned');  //传入只关联的计划的需求，检查需求阶段。
+r($storyTest->setStageTest(5)) && p('stage') && e('planning'); //传入只关联的项目的需求，检查需求阶段。
 
 $story = $storyTest->setStageTest(2);
 r($story) && p('stage') && e('testing');             //传入关联多分支，并分解成任务的需求，检查需求阶段。
 r($story->stages[0]) && p('stage') && e('testing');  //传入关联多分支，并分解成任务的需求，检查分支 0 的需求阶段。
 r($story->stages[1]) && p('stage') && e('tested');   //传入关联多分支，并分解成任务的需求，检查分支 1 的需求阶段。
-r($story->stages[2]) && p('stage') && e('released'); //传入关联多分支，并分解成任务的需求，检查分支 2 的需求阶段。
+r($story->stages[2]) && p('stage') && e('released'); //传入关联多分支，并分解成任务的需求，检查分支 2 的需求阶段。
\ No newline at end of file
diff --git a/module/story/test/model/subdivide.php b/module/story/test/model/subdivide.php
index 54db630fa8..af559ec445 100755
--- a/module/story/test/model/subdivide.php
+++ b/module/story/test/model/subdivide.php
@@ -4,27 +4,15 @@
 /**
 
 title=测试 storyModel->subdivide();
+timeout=0
 cid=0
 
-- 将用户需求1拆分两个软件需求，查看relation表记录的数量。 @4
 - 将用户需求1拆分两个软件需求，查看relation表记录的关系。
- - 属性AID @1
- - 属性BID @2
- - 属性relation @subdivideinto
-- 将用户需求1拆分两个软件需求，查看relation表记录的关系。
- - 属性AID @2
- - 属性BID @1
- - 属性relation @subdividedfrom
-- 将用户需求1拆分两个软件需求，查看relation表记录的关系。
- - 属性AID @1
- - 属性BID @3
- - 属性relation @subdivideinto
-- 将用户需求1拆分两个软件需求，查看relation表记录的关系。
- - 属性AID @3
- - 属性BID @1
- - 属性relation @subdividedfrom
+ - 属性isParent @1
+ - 属性root @0
+ - 属性grade @0
 - 将软件需求2拆分两个子需求，查看子需求的数量。 @2
-- 将软件需求2拆分两个子需求，查看父需求的parent字段。 @-1
+- 将软件需求2拆分两个子需求，查看父需求的parent字段。 @0
 - 将软件需求2拆分两个子需求，查看子需求5的parent字段。 @4
 
 */
@@ -50,11 +38,7 @@ $story = new storyTest();
 $requirementResult = $story->subdivideTest(1, array(2, 3), 'requirement');
 $childrenResult    = $story->subdivideTest(4, array(5, 6), 'story');
 
-r(count($requirementResult))            && p()                   && e('4');                  // 将用户需求1拆分两个软件需求，查看relation表记录的数量。
-r($requirementResult[0])                && p('AID,BID,relation') && e('1,2,subdivideinto');  // 将用户需求1拆分两个软件需求，查看relation表记录的关系。
-r($requirementResult[1])                && p('AID,BID,relation') && e('2,1,subdividedfrom'); // 将用户需求1拆分两个软件需求，查看relation表记录的关系。
-r($requirementResult[2])                && p('AID,BID,relation') && e('1,3,subdivideinto');  // 将用户需求1拆分两个软件需求，查看relation表记录的关系。
-r($requirementResult[3])                && p('AID,BID,relation') && e('3,1,subdividedfrom'); // 将用户需求1拆分两个软件需求，查看relation表记录的关系。
-r(count($childrenResult->children))     && p()                   && e('2');                  // 将软件需求2拆分两个子需求，查看子需求的数量。
-r($childrenResult->parent)              && p()                   && e('-1');                 // 将软件需求2拆分两个子需求，查看父需求的parent字段。
-r($childrenResult->children[5]->parent) && p()                   && e('4');                  // 将软件需求2拆分两个子需求，查看子需求5的parent字段。
+r($requirementResult)                   && p('isParent,root,grade') && e('1,0,0'); // 将用户需求1拆分两个软件需求，查看relation表记录的关系。
+r(count($childrenResult->children))     && p()                      && e('2');     // 将软件需求2拆分两个子需求，查看子需求的数量。
+r($childrenResult->parent)              && p()                      && e('0');     // 将软件需求2拆分两个子需求，查看父需求的parent字段。
+r($childrenResult->children[0]->parent) && p()                      && e('4');     // 将软件需求2拆分两个子需求，查看子需求5的parent字段。
\ No newline at end of file
diff --git a/module/story/test/model/submitreview.php b/module/story/test/model/submitreview.php
index 6298b44ec1..6db51ec03e 100644
--- a/module/story/test/model/submitreview.php
+++ b/module/story/test/model/submitreview.php
@@ -21,7 +21,6 @@ $story->plan->range('0,1,0{100}');
 $story->duplicateStory->range('0,4,0{100}');
 $story->linkStories->range('0,6,0{100}');
 $story->linkRequirements->range('3,0{100}');
-$story->childStories->range('0,8,0{100}');
 $story->toBug->range('0{9},1,0{100}');
 $story->parent->range('0{17},`-1`,0,18,0{100}');
 $story->twins->range('``{27},30,``,28');
diff --git a/module/story/test/model/unlinkstory.php b/module/story/test/model/unlinkstory.php
index 5d50e2cff4..a46b97dd51 100755
--- a/module/story/test/model/unlinkstory.php
+++ b/module/story/test/model/unlinkstory.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->unlinkStory();
+timeout=0
 cid=0
 
 - 删除用户需求1的关联关系之前，获取关联关系数量 @1
@@ -19,7 +20,7 @@ $relation->AID->range('1,11,1,2,12,2,3,13,3,4,14,4,5,15,5,6,16,6,7,17,7,8,18,8')
 $relation->BID->range('11,1,1,12,2,2,13,3,3,14,4,4,15,5,5,16,6,6,17,7,7,18,8,8');
 $relation->AType->range('requirement,story,design');
 $relation->BType->range('story,requirement,commit');
-$relation->relation->range('subdivideinto,subdividedfrom,completedin');
+$relation->relation->range('linkedto,linkedfrom,completedin');
 $relation->gen(24);
 
 global $tester;
@@ -30,4 +31,4 @@ $tester->story->unlinkStory(1, 11);
 $afterRelation = $tester->story->getRelation(1, 'requirement');
 
 r(count($beforeRelation)) && p() && e('1'); //删除用户需求1的关联关系之前，获取关联关系数量
-r(count($afterRelation))  && p() && e('0'); //删除用户需求1的关联关系之后，获取关联关系数量
+r(count($afterRelation))  && p() && e('0'); //删除用户需求1的关联关系之后，获取关联关系数量
\ No newline at end of file
diff --git a/module/story/test/model/update.php b/module/story/test/model/update.php
index 13e678630d..06662b8518 100755
--- a/module/story/test/model/update.php
+++ b/module/story/test/model/update.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->update();
+timeout=0
 cid=0
 
 - 编辑用户需求，判断返回的信息，stage为空
@@ -28,7 +29,7 @@ zenData('product')->gen(30);
 
 $story  = new storyTest();
 $story1 = $tester->loadModel('story')->fetchByID(2);
-$story1->parent        = 2;
+$story1->parent        = 1;
 $story1->pri           = 4;
 $story1->plan          = '0';
 $story1->estimate      = 1;
@@ -52,4 +53,4 @@ $result1 = $story->updateTest(2, clone($story1));
 $result2 = $story->updateTest(4, clone($story1));
 
 r($result1) && p('pri,estimate,sourceNote,product') && e('4,1,测试来源备注1,2'); // 编辑用户需求，判断返回的信息，stage为空
-r($result2) && p('pri,estimate,sourceNote,product') && e('4,1,测试来源备注1,2'); // 编辑软件需求，判断返回的信息，stage为wait，parent为2
+r($result2) && p('pri,estimate,sourceNote,product') && e('4,1,测试来源备注1,2'); // 编辑软件需求，判断返回的信息，stage为wait，parent为2
\ No newline at end of file
diff --git a/module/story/test/model/updateparentstatus.php b/module/story/test/model/updateparentstatus.php
index 3cc0655e38..8cf404bc05 100755
--- a/module/story/test/model/updateparentstatus.php
+++ b/module/story/test/model/updateparentstatus.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->updateParentStatus();
+timeout=0
 cid=0
 
 - 只有一个子需求，并且需求状态为closed，检查父需求的状态。 @closed
@@ -34,7 +35,7 @@ $story4  = $storyModel->fetchByID(4);
 $story15 = $storyModel->fetchByID(15);
 $story16 = $storyModel->fetchByID(16);
 
-r($story2->status) && p() && e('closed');  // 只有一个子需求，并且需求状态为closed，检查父需求的状态。
-r($story4->parent) && p() && e('0');       // 没有子需求的父需求，检查父需求的parent字段。
-r($story15->status) && p() && e('active'); // 已经关闭的父需求，有激活状态的子需求，检查父需求的状态。
-r($story16->parent) && p() && e('0');      // 没有父任务的子需求，检查子需求的parent字段。
+r($story2->status)   && p() && e('closed'); // 只有一个子需求，并且需求状态为closed，检查父需求的状态。
+r($story4->isParent) && p() && e('0');      // 没有子需求的父需求，检查父需求的parent字段。
+r($story15->status)  && p() && e('active'); // 已经关闭的父需求，有激活状态的子需求，检查父需求的状态。
+r($story16->parent)  && p() && e('0');      // 没有父任务的子需求，检查子需求的parent字段。
\ No newline at end of file
diff --git a/module/story/test/model/updatestorybyreview.php b/module/story/test/model/updatestorybyreview.php
index 3822d2e8d7..7b9e59da02 100755
--- a/module/story/test/model/updatestorybyreview.php
+++ b/module/story/test/model/updatestorybyreview.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->updateStoryByReview();
+timeout=0
 cid=0
 
 - 执行storyModel模块的updateStoryByReview方法，参数是1, $oldStory, $story 属性status @draft
@@ -28,6 +29,7 @@ $storyModel = $tester->loadModel('story');
 
 $story = new stdclass();
 $story->status     = 'draft';
+$story->reviewedBy = 'admin,user1';
 
 $oldStory = new stdclass();
 $oldStory->status  = 'draft';
@@ -42,4 +44,4 @@ $storyModel->config->story->superReviewers = '';
 $story->reviewedBy = 'admin';
 r($storyModel->updateStoryByReview(1, $oldStory, $story)) && p('status') && e('draft');
 $story->reviewedBy = 'admin,user1,user2';
-r($storyModel->updateStoryByReview(1, $oldStory, $story)) && p('status') && e('active');
+r($storyModel->updateStoryByReview(1, $oldStory, $story)) && p('status') && e('active');
\ No newline at end of file
diff --git a/module/story/test/model/updatestoryproduct.php b/module/story/test/model/updatestoryproduct.php
index 222fce26a4..1efe31a65b 100755
--- a/module/story/test/model/updatestoryproduct.php
+++ b/module/story/test/model/updatestoryproduct.php
@@ -4,6 +4,7 @@
 /**
 
 title=测试 storyModel->updateStoryProduct();
+timeout=0
 cid=0
 
 - 判断需求变更所属产品之前的产品ID属性product @1
@@ -14,15 +15,20 @@ include dirname(__FILE__, 5) . '/test/lib/init.php';
 include dirname(__FILE__, 2) . '/lib/story.unittest.class.php';
 su('admin');
 
-zenData('story')->gen(1);
+$story = zenData('story');
+$story->parent->range('0,1');
+$story->gen(2);
 zenData('storyspec')->gen(5);
 
 $story = new storyTest();
 global $tester;
 
-$oldStory = $tester->loadModel('story')->getByID(1);
-$tester->story->updateStoryProduct(1, 2);
-$newStory = $tester->story->getByID(1);
+$parent = $tester->loadModel('story')->getByID(1);
+$parent->product = 2;
+
+$oldStory = $tester->story->getByID(2);
+$tester->story->updateStoryProduct(2, $parent, 1);
+$newStory = $tester->story->getByID(2);
 
 r($oldStory) && p('product') && e('1'); // 判断需求变更所属产品之前的产品ID
-r($newStory) && p('product') && e('2'); // 判断需求变更所属产品之后的产品ID
+r($newStory) && p('product') && e('2'); // 判断需求变更所属产品之后的产品ID
\ No newline at end of file
diff --git a/module/story/test/model/updatestoryversion.php b/module/story/test/model/updatestoryversion.php
deleted file mode 100755
index 9d5c064eb0..0000000000
--- a/module/story/test/model/updatestoryversion.php
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/usr/bin/env php
-<?php
-
-/**
-
-title=测试 storyModel->updateStoryVersion();
-cid=0
-
-- 执行story模块的updateStoryVersionTest方法，参数是12 属性AVersion @2
-
-*/
-include dirname(__FILE__, 5) . '/test/lib/init.php';
-include dirname(__FILE__, 2) . '/lib/story.unittest.class.php';
-su('admin');
-
-zenData('story')->gen(20);
-zenData('product')->gen(1);
-$story = zenData('story');
-$story->product->range(1);
-$story->version->range(1);
-$story->gen(20);
-
-$storySpec = zenData('storyspec');
-$storySpec->story->range('1-20{2}');
-$storySpec->version->range('1-2');
-$storySpec->gen(40);
-zenData('storyspec')->gen(20);
-$relation = zenData('relation');
-$relation->AID->range('1,10,2,11,3,12,4,13,5,14,6,15,7,16,8,17');
-$relation->AVersion->range('1');
-$relation->BID->range('10,1,11,2,12,3,13,4,14,5,15,6,16,7,17,8');
-$relation->BVersion->range('1');
-$relation->gen(16);
-
-$story = new storyTest();
-r($story->updateStoryVersionTest(12)) && p('AVersion') && e('2');
diff --git a/module/story/test/tao/buildtrackcol.php b/module/story/test/tao/buildtrackcol.php
new file mode 100644
index 0000000000..703213210a
--- /dev/null
+++ b/module/story/test/tao/buildtrackcol.php
@@ -0,0 +1,31 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 storyModel->buildTrackCol();
+cid=0
+
+- 执行story模块的buildTrackCol方法，参数是'epic', '业务需求'
+ - 属性name @epic
+ - 属性title @业务需求
+ - 属性parent @0
+- 执行story模块的buildTrackCol方法，参数是'epic', '业务需求', '-1'
+ - 属性name @epic
+ - 属性title @业务需求
+ - 属性parent @-1
+- 执行story模块的buildTrackCol方法，参数是'epic_1', 'BR1', 'epic'
+ - 属性name @epic_1
+ - 属性title @BR1
+ - 属性parent @epic
+ - 属性parentName @epic
+
+*/
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+
+global $tester;
+$tester->loadModel('story');
+
+r($tester->story->buildTrackCol('epic', '业务需求'))       && p('name,title,parent')            && e('epic,业务需求,0');
+r($tester->story->buildTrackCol('epic', '业务需求', '-1')) && p('name,title,parent')            && e('epic,业务需求,-1');
+r($tester->story->buildTrackCol('epic_1', 'BR1', 'epic'))  && p('name,title,parent,parentName') && e('epic_1,BR1,epic,epic');
diff --git a/module/story/test/tao/buildtrackcols.php b/module/story/test/tao/buildtrackcols.php
new file mode 100644
index 0000000000..1ab8148e40
--- /dev/null
+++ b/module/story/test/tao/buildtrackcols.php
@@ -0,0 +1,136 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 storyModel->buildTrackCols();
+timeout=0
+cid=0
+
+- 执行$epicCols @16
+- 执行$epicCols[0]
+ - 属性name @epic
+ - 属性title @业务需求
+ - 属性parent @-1
+- 执行$epicCols[1]
+ - 属性name @requirement
+ - 属性title @用户需求
+ - 属性parent @-1
+- 执行$epicCols[2]
+ - 属性name @story
+ - 属性title @研发需求
+ - 属性parent @-1
+- 执行$epicCols[10]
+ - 属性name @story_1
+ - 属性title @SR1
+ - 属性parent @story
+ - 属性parentName @story
+- 执行$epicCols[13]
+ - 属性name @requirement_2
+ - 属性title @UR2
+ - 属性parent @requirement
+ - 属性parentName @requirement
+- 执行$epicCols[15]
+ - 属性name @epic_2
+ - 属性title @BR2
+ - 属性parent @epic
+ - 属性parentName @epic
+- 执行$requirementCols @13
+- 执行$requirementCols[0]
+ - 属性name @requirement
+ - 属性title @用户需求
+ - 属性parent @-1
+- 执行$requirementCols[1]
+ - 属性name @story
+ - 属性title @研发需求
+ - 属性parent @-1
+- 执行$requirementCols[10]
+ - 属性name @story_2
+ - 属性title @SR2
+ - 属性parent @story
+ - 属性parentName @story
+- 执行$requirementCols[12]
+ - 属性name @requirement_2
+ - 属性title @UR2
+ - 属性parent @requirement
+ - 属性parentName @requirement
+- 执行$storyCols @10
+- 执行$storyCols[0]
+ - 属性name @story
+ - 属性title @研发需求
+ - 属性parent @-1
+- 执行$storyCols[9]
+ - 属性name @story_2
+ - 属性title @SR2
+ - 属性parent @story
+ - 属性parentName @story
+- 执行$epicCols[0]
+ - 属性name @epic_1
+ - 属性title @业务需求
+ - 属性parent @0
+- 执行$epicCols[1]
+ - 属性name @requirement
+ - 属性title @用户需求
+ - 属性parent @-1
+- 执行$epicCols[2]
+ - 属性name @story
+ - 属性title @研发需求
+ - 属性parent @-1
+- 执行$epicCols[10]
+ - 属性name @story_1
+ - 属性title @SR1
+ - 属性parent @story
+ - 属性parentName @story
+- 执行$epicCols[13]
+ - 属性name @requirement_2
+ - 属性title @UR2
+ - 属性parent @requirement
+ - 属性parentName @requirement
+
+*/
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+
+$storyGrade = zenData('storygrade');
+$storyGrade->type->range('epic{2},requirement{2},story{2}');
+$storyGrade->grade->range('1,2');
+$storyGrade->name->range('BR1,BR2,UR1,UR2,SR1,SR2');
+$storyGrade->status->range('enable');
+$storyGrade->gen(6);
+
+global $tester;
+$tester->loadModel('story');
+
+$tester->story->lang->ERCommon = '业务需求';
+$tester->story->lang->URCommon = '用户需求';
+$tester->story->lang->SRCommon = '研发需求';
+
+$epicCols        = $tester->story->buildTrackCols('epic');
+$requirementCols = $tester->story->buildTrackCols('requirement');
+$storyCols       = $tester->story->buildTrackCols('story');
+
+r(count($epicCols)) && p() && e(16);
+r($epicCols[0]) && p('name,title,parent') && e('epic,业务需求,-1');
+r($epicCols[1]) && p('name,title,parent') && e('requirement,用户需求,-1');
+r($epicCols[2]) && p('name,title,parent') && e('story,研发需求,-1');
+r($epicCols[10]) && p('name,title,parent,parentName') && e('story_1,SR1,story,story');
+r($epicCols[13]) && p('name,title,parent,parentName') && e('requirement_2,UR2,requirement,requirement');
+r($epicCols[15]) && p('name,title,parent,parentName') && e('epic_2,BR2,epic,epic');
+
+r(count($requirementCols)) && p() && e(13);
+r($requirementCols[0]) && p('name,title,parent') && e('requirement,用户需求,-1');
+r($requirementCols[1]) && p('name,title,parent') && e('story,研发需求,-1');
+r($requirementCols[10]) && p('name,title,parent,parentName') && e('story_2,SR2,story,story');
+r($requirementCols[12]) && p('name,title,parent,parentName') && e('requirement_2,UR2,requirement,requirement');
+
+r(count($storyCols)) && p() && e(10);
+r($storyCols[0]) && p('name,title,parent') && e('story,研发需求,-1');
+r($storyCols[9]) && p('name,title,parent,parentName') && e('story_2,SR2,story,story');
+
+$tester->story->dao->delete()->from(TABLE_STORYGRADE)->where('type')->eq('epic')->andWhere('grade')->gt('1')->exec();
+
+$epicCols = $tester->story->buildTrackCols('epic');
+r($epicCols[0]) && p('name,title,parent') && e('epic_1,业务需求,0');
+r($epicCols[1]) && p('name,title,parent') && e('requirement,用户需求,-1');
+r($epicCols[2]) && p('name,title,parent') && e('story,研发需求,-1');
+r($epicCols[10]) && p('name,title,parent,parentName') && e('story_1,SR1,story,story');
+r($epicCols[13]) && p('name,title,parent,parentName') && e('requirement_2,UR2,requirement,requirement');
diff --git a/module/story/test/tao/buildtrackitems.php b/module/story/test/tao/buildtrackitems.php
new file mode 100644
index 0000000000..d680dc496d
--- /dev/null
+++ b/module/story/test/tao/buildtrackitems.php
@@ -0,0 +1,121 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 storyModel->buildTrackItems();
+cid=0
+
+- 执行$epicItems['lane_11']['epic_1'][0]属性id @11
+- 执行$epicItems['lane_10']['epic_1'][0]属性id @1
+- 执行$epicItems['lane_10']['requirement_2'][0]属性id @3
+- 执行$epicItems['lane_10']['project'][0]属性id @1
+- 执行$epicItems['lane_4']['task'][0]属性id @4
+- 执行$epicItems['lane_4']['bug'][0]属性id @4
+- 执行$epicItems['lane_4']['case'][0]属性id @4
+- 执行$epicItems['lane_10']['requirement_2'][0]属性id @3
+- 执行$epicItems['lane_10']['project'][0]属性id @1
+- 执行$epicItems['lane_4']['task'][0]属性id @4
+- 执行$epicItems['lane_4']['bug'][0]属性id @4
+- 执行$epicItems['lane_4']['case'][0]属性id @4
+- 执行$epicItems['lane_10']['requirement_2'][0]属性id @3
+- 执行$epicItems['lane_10']['project'][0]属性id @1
+- 执行$epicItems['lane_5']['task'][0]属性id @5
+- 执行$epicItems['lane_5']['bug'][0]属性id @5
+- 执行$epicItems['lane_5']['case'][0]属性id @5
+
+*/
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+
+$projectStory = zenData('projectstory');
+$projectStory->project->range('1-2{5}');
+$projectStory->product->range('1');
+$projectStory->story->range('6-10');
+$projectStory->gen(10);
+
+$project = zenData('project');
+$project->id->range('1-2');
+$project->type->range('project,scrum');
+$project->gen('2');
+
+$design = zenData('design');
+$design->project->range('2{5}');
+$design->product->range('1');
+$design->story->range('6-10');
+$design->commit->range('5-1');
+$design->gen(5);
+
+$commit = zenData('repohistory');
+$commit->id->range('1-5');
+$commit->comment->range('1-5')->prefix('comment');
+$commit->gen('5');
+
+$story = zenData('story');
+$story->product->range('1');
+$story->root->range('1{10},11');
+$story->grade->range('1,2{3},3{6},1');
+$story->parent->range('0,1{3},2{3},3{3},0');
+$story->type->range('epic,requirement{3},story{6},epic');
+$story->gen(11)->fixPath();
+
+$task = zenData('task');
+$task->story->range('1-5');
+$task->gen('10');
+
+$bug = zenData('bug');
+$bug->story->range('1-5');
+$bug->gen('10');
+
+$case = zenData('case');
+$case->story->range('1-5');
+$case->gen('10');
+
+$storyGrade = zenData('storygrade');
+$storyGrade->type->range('epic{2},requirement{2},story{2}');
+$storyGrade->grade->range('1,2');
+$storyGrade->name->range('BR1,BR2,UR1,UR2,SR1,SR2');
+$storyGrade->status->range('enable');
+$storyGrade->gen(6);
+
+su('admin');
+
+global $tester;
+$tester->loadModel('story');
+
+$allStoryIdList = array(1,2,3,4,5,6,7,8,9,10,11);
+$stories        = $tester->story->dao->select('*')->from(TABLE_STORY)->where('id')->in('1,11')->orderBy('id_desc')->fetchAll('id');
+$leafNodes      = $tester->story->getLeafNodes($stories, $allStoryIdList);
+$allStories     = $tester->story->dao->select('id,parent,isParent,root,path,grade,product,pri,type,status,stage,title,estimate')->from(TABLE_STORY)->where('root')->in('1,11')->andWhere('deleted')->eq(0)->orderBy('type,grade,parent')->fetchAll('id');
+
+$epicItems = $tester->story->buildTrackItems($allStories, $leafNodes, 'epic');
+r((array)$epicItems['lane_11']['epic_1'][0])        && p('id') && e('11');
+r((array)$epicItems['lane_10']['epic_1'][0])        && p('id') && e('1');
+r((array)$epicItems['lane_10']['requirement_2'][0]) && p('id') && e('3');
+r((array)$epicItems['lane_10']['project'][0])       && p('id') && e('1');
+r((array)$epicItems['lane_4']['task'][0])           && p('id') && e('4');
+r((array)$epicItems['lane_4']['bug'][0])            && p('id') && e('4');
+r((array)$epicItems['lane_4']['case'][0])           && p('id') && e('4');
+
+$allStoryIdList = array(2,3,4,5,6,7,8,9,10);
+$stories        = $tester->story->dao->select('*')->from(TABLE_STORY)->where('id')->in('2,3,4')->orderBy('id_desc')->fetchAll('id');
+$leafNodes      = $tester->story->getLeafNodes($stories, $allStoryIdList);
+$allStories     = $tester->story->dao->select('id,parent,isParent,root,path,grade,product,pri,type,status,stage,title,estimate')->from(TABLE_STORY)->where('root')->in('1')->andWhere('deleted')->eq(0)->orderBy('type,grade,parent')->fetchAll('id');
+
+$requirementItems = $tester->story->buildTrackItems($allStories, $leafNodes, 'requirement');
+r((array)$epicItems['lane_10']['requirement_2'][0]) && p('id') && e('3');
+r((array)$epicItems['lane_10']['project'][0])       && p('id') && e('1');
+r((array)$epicItems['lane_4']['task'][0])           && p('id') && e('4');
+r((array)$epicItems['lane_4']['bug'][0])            && p('id') && e('4');
+r((array)$epicItems['lane_4']['case'][0])           && p('id') && e('4');
+
+$allStoryIdList = array(5,6,7,8,9,10);
+$stories        = $tester->story->dao->select('*')->from(TABLE_STORY)->where('id')->in('5,6,7,8,9,10')->orderBy('id_desc')->fetchAll('id');
+$leafNodes      = $tester->story->getLeafNodes($stories, $allStoryIdList);
+$allStories     = $tester->story->dao->select('id,parent,isParent,root,path,grade,product,pri,type,status,stage,title,estimate')->from(TABLE_STORY)->where('root')->in('1')->andWhere('deleted')->eq(0)->orderBy('type,grade,parent')->fetchAll('id');
+
+$storyItems = $tester->story->buildTrackItems($allStories, $leafNodes, 'story');
+r((array)$epicItems['lane_10']['requirement_2'][0]) && p('id') && e('3');
+r((array)$epicItems['lane_10']['project'][0])       && p('id') && e('1');
+r((array)$epicItems['lane_5']['task'][0])           && p('id') && e('5');
+r((array)$epicItems['lane_5']['bug'][0])            && p('id') && e('5');
+r((array)$epicItems['lane_5']['case'][0])           && p('id') && e('5');
diff --git a/module/story/test/tao/buildtracklanes.php b/module/story/test/tao/buildtracklanes.php
new file mode 100644
index 0000000000..5a15a2e11e
--- /dev/null
+++ b/module/story/test/tao/buildtracklanes.php
@@ -0,0 +1,31 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 storyModel->buildTrackLanes();
+timeout=0
+cid=0
+
+- 传入空参数。 @0
+- 检查泳道数。 @4
+- 检查第一个泳道的name参数。 @lane_1
+
+*/
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+
+global $tester;
+$tester->loadModel('story');
+
+$leafNodes = array();
+foreach(array(1,2,3,4) as $storyID)
+{
+    $story = new stdclass();
+    $story->id = $storyID;
+    $leafNodes[$storyID] = $story;
+}
+r(count($tester->story->buildTrackLanes(array()))) && p() && e('0');  //传入空参数。
+
+$lanes = $tester->story->buildTrackLanes($leafNodes);
+r(count($lanes)) && p() && e('4');          //检查泳道数。
+r($lanes[0]['name']) && p() && e('lane_1'); //检查第一个泳道的name参数。
diff --git a/module/story/test/tao/computeparentstage.php b/module/story/test/tao/computeparentstage.php
new file mode 100755
index 0000000000..08cccab4dd
--- /dev/null
+++ b/module/story/test/tao/computeparentstage.php
@@ -0,0 +1,100 @@
+#!/usr/bin/env php
+<?php
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+su('admin');
+
+$product = zdTable('product')->gen(1);
+
+$project = zdTable('project');
+$project->id->range('11-20');
+$project->type->range('project,project,sprint,kanban');
+$project->model->range('scrum,kanban');
+$project->gen(10);
+
+$projectStory = zdTable('projectstory');
+$projectStory->story->range('6-20');
+$projectStory->product->range('1');
+$projectStory->project->range('11-20');
+$projectStory->gen(15);
+
+$projectProduct = zdTable('projectproduct');
+$projectProduct->product->range('1');
+$projectProduct->project->range('11-20');
+$projectProduct->gen(10);
+
+$story = zdTable('story');
+$story->product->range('1');
+$story->plan->range('`1,2`,2,3,4,5');
+$story->type->range('story');
+$story->parent->range('0{5},1-5{3}');
+$story->root->range('1-5,1-5{3}');
+$story->isParent->range('1{5},0{15}');
+$story->stage->range('wait,planned,developing,tested,released');
+$story->gen(20)->fixPath();
+
+$task = zdTable('task');
+$task->story->range('6-20');
+$task->execution->range('11-20');
+$task->type->range('devel,test,design');
+$task->gen(100);
+
+$release = zdTable('release');
+$release->stories->range('6-10');
+$release->gen(5);
+
+/**
+
+title=测试 storyModel->setStage();
+timeout=0
+cid=1
+
+- 查看父需求初始阶段属性stage @wait
+- 查看父需求初始阶段属性stage @planned
+- 查看父需求初始阶段属性stage @developing
+- 查看父需求初始阶段属性stage @tested
+- 查看父需求初始阶段属性stage @released
+- 通过子需求计算父需求的阶段属性stage @developing
+- 通过子需求计算父需求的阶段属性stage @delivering
+- 通过子需求计算父需求的阶段属性stage @developing
+- 通过子需求计算父需求的阶段属性stage @delivering
+- 通过子需求计算父需求的阶段属性stage @delivering
+
+*/
+
+global $tester;
+$storyModel = $tester->loadModel('story');
+$p1 = $tester->story->fetchById(1);
+$p2 = $tester->story->fetchById(2);
+$p3 = $tester->story->fetchById(3);
+$p4 = $tester->story->fetchById(4);
+$p5 = $tester->story->fetchById(5);
+
+r($p1) && p('stage') && e('wait');       // 查看父需求初始阶段
+r($p2) && p('stage') && e('planned');    // 查看父需求初始阶段
+r($p3) && p('stage') && e('developing'); // 查看父需求初始阶段
+r($p4) && p('stage') && e('tested');     // 查看父需求初始阶段
+r($p5) && p('stage') && e('released');   // 查看父需求初始阶段
+
+$c1 = $tester->story->fetchById(6);
+$c2 = $tester->story->fetchById(9);
+$c3 = $tester->story->fetchById(12);
+$c4 = $tester->story->fetchById(15);
+$c5 = $tester->story->fetchById(18);
+
+$tester->story->computeParentStage($c1);
+$tester->story->computeParentStage($c2);
+$tester->story->computeParentStage($c3);
+$tester->story->computeParentStage($c4);
+$tester->story->computeParentStage($c5);
+
+$p1 = $tester->story->fetchById(1);
+$p2 = $tester->story->fetchById(2);
+$p3 = $tester->story->fetchById(3);
+$p4 = $tester->story->fetchById(4);
+$p5 = $tester->story->fetchById(5);
+
+r($p1) && p('stage') && e('developing'); // 通过子需求计算父需求的阶段
+r($p2) && p('stage') && e('delivering'); // 通过子需求计算父需求的阶段
+r($p3) && p('stage') && e('developing'); // 通过子需求计算父需求的阶段
+r($p4) && p('stage') && e('delivering'); // 通过子需求计算父需求的阶段
+r($p5) && p('stage') && e('delivering'); // 通过子需求计算父需求的阶段
\ No newline at end of file
diff --git a/module/story/test/tao/dochangeparent.php b/module/story/test/tao/dochangeparent.php
index b334de30e7..d444dd9203 100755
--- a/module/story/test/tao/dochangeparent.php
+++ b/module/story/test/tao/dochangeparent.php
@@ -18,7 +18,7 @@ $story = zenData('story');
 $story->id->range('1-100');
 $story->title->range('teststory');
 $story->product->range('1');
-$story->parent->range('`-1`,`-1`,0,1,1');
+$story->parent->range('0,0,0,1,1');
 $story->version->range('1');
 $story->gen(5);
 
@@ -33,4 +33,4 @@ $storyModel->doChangeParent(3, $story, 2);
 r($storyModel->dao->select('*')->from(TABLE_STORY)->where('id')->eq(2)->fetch()) && p('parent') && e('0');
 $story->parent  = 1;
 $storyModel->doChangeParent(3, $story, 0);
-r($storyModel->dao->select('*')->from(TABLE_STORY)->where('id')->eq(1)->fetch()) && p('childStories', '|') && e('4,5');
+r($storyModel->dao->select('*')->from(TABLE_STORY)->where('id')->eq(1)->fetch()) && p('isParent') && e('1');
diff --git a/module/story/test/tao/getaffectedbugs.php b/module/story/test/tao/getaffectedbugs.php
index f716a71981..8974f0c8a9 100644
--- a/module/story/test/tao/getaffectedbugs.php
+++ b/module/story/test/tao/getaffectedbugs.php
@@ -19,7 +19,6 @@ $story->plan->range('0,1,0{100}');
 $story->duplicateStory->range('0,4,0{100}');
 $story->linkStories->range('0,6,0{100}');
 $story->linkRequirements->range('3,0{100}');
-$story->childStories->range('0,8,0{100}');
 $story->toBug->range('0{9},1,0{100}');
 $story->parent->range('0{17},`-1`,0,18,0{100}');
 $story->twins->range('``{27},30,``,28');
diff --git a/module/story/test/tao/getaffectedcases.php b/module/story/test/tao/getaffectedcases.php
index ae29c1128a..7647c51614 100644
--- a/module/story/test/tao/getaffectedcases.php
+++ b/module/story/test/tao/getaffectedcases.php
@@ -19,7 +19,6 @@ $story->plan->range('0,1,0{100}');
 $story->duplicateStory->range('0,4,0{100}');
 $story->linkStories->range('0,6,0{100}');
 $story->linkRequirements->range('3,0{100}');
-$story->childStories->range('0,8,0{100}');
 $story->toBug->range('0{9},1,0{100}');
 $story->parent->range('0{17},`-1`,0,18,0{100}');
 $story->twins->range('``{27},30,``,28');
diff --git a/module/story/test/tao/getaffectedprojects.php b/module/story/test/tao/getaffectedprojects.php
index 05b88e9228..ec24ada25e 100644
--- a/module/story/test/tao/getaffectedprojects.php
+++ b/module/story/test/tao/getaffectedprojects.php
@@ -20,7 +20,6 @@ $story->plan->range('0,1,0{100}');
 $story->duplicateStory->range('0,4,0{100}');
 $story->linkStories->range('0,6,0{100}');
 $story->linkRequirements->range('3,0{100}');
-$story->childStories->range('0,8,0{100}');
 $story->toBug->range('0{9},1,0{100}');
 $story->parent->range('0{17},`-1`,0,18,0{100}');
 $story->twins->range('``{27},30,``,28');
diff --git a/module/story/test/tao/getaffectedtwins.php b/module/story/test/tao/getaffectedtwins.php
index 5903318873..380c866294 100644
--- a/module/story/test/tao/getaffectedtwins.php
+++ b/module/story/test/tao/getaffectedtwins.php
@@ -19,7 +19,6 @@ $story->plan->range('0,1,0{100}');
 $story->duplicateStory->range('0,4,0{100}');
 $story->linkStories->range('0,6,0{100}');
 $story->linkRequirements->range('3,0{100}');
-$story->childStories->range('0,8,0{100}');
 $story->toBug->range('0{9},1,0{100}');
 $story->parent->range('0{17},`-1`,0,18,0{100}');
 $story->twins->range('``{27},30,``,28');
diff --git a/module/story/test/tao/getdesignsfortrack.php b/module/story/test/tao/getdesignsfortrack.php
new file mode 100644
index 0000000000..90ba6d8cee
--- /dev/null
+++ b/module/story/test/tao/getdesignsfortrack.php
@@ -0,0 +1,50 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 storyModel->getDesignsForTrack();
+timeout=0
+cid=0
+
+- 传入空参数。 @0
+- 执行$designs['design'] @6;7;8;9;10
+- 执行$designs['commit'] @6;7;8;9;10
+- 执行$designs['design'][6] @1
+- 执行$designs['commit'][6] @5
+
+*/
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+
+$design = zenData('design');
+$design->project->range('2{5}');
+$design->product->range('1');
+$design->story->range('6-10');
+$design->commit->range('5-1');
+$design->gen(5);
+
+$commit = zenData('repohistory');
+$commit->id->range('1-5');
+$commit->comment->range('1-5')->prefix('comment');
+$commit->gen('5');
+
+$story = zenData('story');
+$story->product->range('1');
+$story->root->range('1{10},11');
+$story->grade->range('1,2{3},3{6},1');
+$story->parent->range('0,1{3},2{3},3{3},0');
+$story->type->range('epic,requirement{3},story{6},epic');
+$story->gen(11);
+
+su('admin');
+
+global $tester;
+$tester->loadModel('story');
+
+r(count($tester->story->getDesignsForTrack(array()))) && p() && e('0');  //传入空参数。
+
+$designs = $tester->story->getDesignsForTrack(array(5,6,7,8,9,10));
+r(implode(';', array_keys($designs['design'])))    && p() && e('6;7;8;9;10');
+r(implode(';', array_keys($designs['commit'])))    && p() && e('6;7;8;9;10');
+r(implode(';', array_keys($designs['design'][6]))) && p() && e('1');
+r(implode(';', array_keys($designs['commit'][6]))) && p() && e('5');
\ No newline at end of file
diff --git a/module/story/test/tao/getlastnodes.php b/module/story/test/tao/getlastnodes.php
new file mode 100644
index 0000000000..e39ba62f82
--- /dev/null
+++ b/module/story/test/tao/getlastnodes.php
@@ -0,0 +1,37 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 storyModel->getLeafNodes();
+cid=0
+
+- 传入空参数。 @0
+- 只传入 allStoryIdList @0
+- 只传入 stories @0
+- 执行story模块的getLeafNodes方法，参数是$stories, $allStoryIdList  @11;10;9;8;7;6;5;4
+
+*/
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+
+$story = zenData('story');
+$story->product->range('1');
+$story->root->range('1{10},11');
+$story->grade->range('1,2{3},3{6},1');
+$story->parent->range('0,1{3},2{3},3{3},0');
+$story->type->range('epic,requirement{3},story{6},epic');
+$story->gen(11);
+
+su('admin');
+
+global $tester;
+$tester->loadModel('story');
+
+$allStoryIdList = array(1,2,3,4,5,6,7,8,9,10,11);
+$stories        = $tester->story->dao->select('*')->from(TABLE_STORY)->where('id')->in('1,11')->orderBy('id_desc')->fetchAll('id');
+
+r(count($tester->story->getLeafNodes(array(), array())))         && p() && e('0');  //传入空参数。
+r(count($tester->story->getLeafNodes(array(), $allStoryIdList))) && p() && e('0');  //只传入 allStoryIdList
+r(count($tester->story->getLeafNodes($stories, array())))        && p() && e('0');  //只传入 stories
+
+r(implode(';', array_keys($tester->story->getLeafNodes($stories, $allStoryIdList)))) && p() && e('11;10;9;8;7;6;5;4');
diff --git a/module/story/test/tao/getprojectsfortrack.php b/module/story/test/tao/getprojectsfortrack.php
new file mode 100644
index 0000000000..fc09a03dfc
--- /dev/null
+++ b/module/story/test/tao/getprojectsfortrack.php
@@ -0,0 +1,48 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 storyModel->getProjectsForTrack();
+cid=0
+
+- 传入空参数。 @0
+- 执行$projects['project'] @6;7;8;9;10
+- 执行$projects['execution'] @6;7;8;9;10
+- 执行$projects['project'][6] @1
+- 执行$projects['execution'][6] @2
+
+*/
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+
+$projectStory = zenData('projectstory');
+$projectStory->project->range('1-2{5}');
+$projectStory->product->range('1');
+$projectStory->story->range('6-10');
+$projectStory->gen(10);
+
+$project = zenData('project');
+$project->id->range('1-2');
+$project->type->range('project,scrum');
+$project->gen('2');
+
+$story = zenData('story');
+$story->product->range('1');
+$story->root->range('1{10},11');
+$story->grade->range('1,2{3},3{6},1');
+$story->parent->range('0,1{3},2{3},3{3},0');
+$story->type->range('epic,requirement{3},story{6},epic');
+$story->gen(11);
+
+su('admin');
+
+global $tester;
+$tester->loadModel('story');
+
+r(count($tester->story->getProjectsForTrack(array()))) && p() && e('0');  //传入空参数。
+
+$projects = $tester->story->getProjectsForTrack(array(5,6,7,8,9,10));
+r(implode(';', array_keys($projects['project'])))      && p() && e('6;7;8;9;10');
+r(implode(';', array_keys($projects['execution'])))    && p() && e('6;7;8;9;10');
+r(implode(';', array_keys($projects['project'][6])))   && p() && e('1');
+r(implode(';', array_keys($projects['execution'][6]))) && p() && e('2');
diff --git a/module/story/ui/affected.html.php b/module/story/ui/affected.html.php
index 5c5b171edc..213e39b61a 100644
--- a/module/story/ui/affected.html.php
+++ b/module/story/ui/affected.html.php
@@ -2,94 +2,117 @@
 declare(strict_types=1);
 namespace zin;
 
-$getAffectedTabs = function($story, $users)
+if($story->type == 'story')
 {
-    global $lang, $config;
-    $affectedProjects  = array();
-    $affectedTaskCount = 0;
-    foreach($story->executions as $executionID => $execution)
+    $getAffectedTabs = function($story, $users)
     {
-        $teams = '';
-        if(isset($story->teams[$executionID]))
+        global $lang, $config;
+        $affectedProjects  = array();
+        $affectedTaskCount = 0;
+        foreach($story->executions as $executionID => $execution)
         {
-            foreach($story->teams[$executionID] as $member) $teams .= zget($users, $member->account) . ' ';
+            $teams = '';
+            if(isset($story->teams[$executionID]))
+            {
+                foreach($story->teams[$executionID] as $member) $teams .= zget($users, $member->account) . ' ';
+            }
+
+            $executionTasks     = array_values(zget($story->tasks, $executionID, array()));
+            $affectedTaskCount += count($executionTasks);
+            $affectedProjects[] = h6
+            (
+                $execution->name,
+                $teams ? h::small(icon('group'), $teams) : null
+            );
+            $affectedProjects[] = empty($executionTasks) ? div(setClass('dtable-empty-tip'), div(setClass('text-gray'), $lang->noData)) : dtable
+            (
+                set::cols($config->story->affect->projects->fields),
+                set::data($executionTasks)
+            );
         }
 
-        $executionTasks     = array_values(zget($story->tasks, $executionID, array()));
-        $affectedTaskCount += count($executionTasks);
-        $affectedProjects[] = h6
+        return formGroup
         (
-            $execution->name,
-            $teams ? h::small(icon('group'), $teams) : null
+            setClass('w-full'),
+            set::label($lang->story->checkAffection),
+            set::required(false),
+            tabs
+            (
+                setClass('w-full'),
+                tabPane
+                (
+                    to::suffix(label($affectedTaskCount)),
+                    set::key('affectedProjects'),
+                    set::title($lang->story->affectedProjects),
+                    set::active(true),
+                    empty($affectedProjects) ? div(setClass('dtable-empty-tip'), div(setClass('text-gray'), $lang->noData)) : $affectedProjects
+                ),
+                tabPane
+                (
+                    to::suffix(label(count($story->bugs))),
+                    set::key('affectedBugs'),
+                    set::title($lang->story->affectedBugs),
+                    empty($story->bugs) ? div(setClass('dtable-empty-tip'), div(setClass('text-gray'), $lang->noData)) : dtable
+                    (
+                        set::cols($config->story->affect->bugs->fields),
+                        set::data(array_values($story->bugs)),
+                        set::style(array('min-width' => '100%'))
+                    )
+                ),
+                tabPane
+                (
+                    to::suffix(label(count($story->cases))),
+                    set::key('affectedCases'),
+                    set::title($lang->story->affectedCases),
+                    empty($story->cases) ? div(setClass('dtable-empty-tip'), div(setClass('text-gray'), $lang->noData)) : dtable
+                    (
+                        set::cols($config->story->affect->cases->fields),
+                        set::data(array_values($story->cases)),
+                        set::style(array('min-width' => '100%'))
+                    )
+                ),
+                empty($story->twins) ? null : tabPane
+                (
+                    to::suffix(label(count($story->twins))),
+                    set::key('affectedTwins'),
+                    set::title($lang->story->affectedTwins),
+                    empty($story->twins) ? div(setClass('dtable-empty-tip'), div(setClass('text-gray'), $lang->noData)) : dtable
+                    (
+                        set::cols($config->story->affect->twins->fields),
+                        set::data(array_values($story->twins)),
+                        set::style(array('min-width' => '100%'))
+                    )
+                )
+            )
         );
-        $affectedProjects[] = empty($executionTasks) ? div(setClass('dtable-empty-tip'), div(setClass('text-gray'), $lang->noData)) : dtable
+    };
+}
+else
+{
+    $getAffectedTabs = function($story)
+    {
+        global $lang, $config;
+        return formGroup
         (
-            set::cols($config->story->affect->projects->fields),
-            set::data($executionTasks)
+            setClass('w-full'),
+            set::label($lang->story->checkAffection),
+            set::required(false),
+            tabs
+            (
+                setClass('w-full'),
+                tabPane
+                (
+                    set::active(true),
+                    to::suffix(label(count($story->children))),
+                    set::key('affectedChildren'),
+                    set::title($lang->story->children),
+                    $story->children ? dtable
+                    (
+                        set::cols($config->story->affect->children->fields),
+                        set::data(array_values($story->children))
+                    ): null
+                )
+            )
         );
-    }
-
-    $tabs = tabs
-    (
-        setClass('w-full'),
-        tabPane
-        (
-            to::suffix(label($affectedTaskCount)),
-            set::key('affectedProjects'),
-            set::title($lang->story->affectedProjects),
-            set::active(true),
-            empty($affectedProjects) ? div(setClass('dtable-empty-tip'), div(setClass('text-gray'), $lang->noData)) : $affectedProjects
-        ),
-        tabPane
-        (
-            to::suffix(label(count($story->bugs))),
-            set::key('affectedBugs'),
-            set::title($lang->story->affectedBugs),
-            empty($story->bugs) ? div(setClass('dtable-empty-tip'), div(setClass('text-gray'), $lang->noData)) : dtable
-            (
-                set::cols($config->story->affect->bugs->fields),
-                set::data(array_values($story->bugs)),
-                set::style(array('min-width' => '100%'))
-            )
-        ),
-        tabPane
-        (
-            to::suffix(label(count($story->cases))),
-            set::key('affectedCases'),
-            set::title($lang->story->affectedCases),
-            empty($story->cases) ? div(setClass('dtable-empty-tip'), div(setClass('text-gray'), $lang->noData)) : dtable
-            (
-                set::cols($config->story->affect->cases->fields),
-                set::data(array_values($story->cases)),
-                set::style(array('min-width' => '100%'))
-            )
-        ),
-        empty($story->twins) ? null : tabPane
-        (
-            to::suffix(label(count($story->twins))),
-            set::key('affectedTwins'),
-            set::title($lang->story->affectedTwins),
-            empty($story->twins) ? div(setClass('dtable-empty-tip'), div(setClass('text-gray'), $lang->noData)) : dtable
-            (
-                set::cols($config->story->affect->twins->fields),
-                set::data(array_values($story->twins)),
-                set::style(array('min-width' => '100%'))
-            )
-        )
-    );
-
-    global $app;
-    return $app->rawMethod == 'change' ? section
-    (
-        set::width('full'),
-        set::title($lang->story->checkAffection),
-        set::required(false),
-        $tabs
-    ) : formGroup
-    (
-        setClass('w-full'),
-        set::label($lang->story->checkAffection),
-        set::required(false),
-        $tabs
-    );
-};
+    };
+}
diff --git a/module/story/ui/batchchangeparent.html.php b/module/story/ui/batchchangeparent.html.php
new file mode 100644
index 0000000000..2c2f88d26d
--- /dev/null
+++ b/module/story/ui/batchchangeparent.html.php
@@ -0,0 +1,28 @@
+<?php
+declare(strict_types=1);
+/**
+* The UI file of story module of ZenTaoPMS.
+*
+* @copyright   Copyright 2009-2023 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.zentao.net)
+* @license     ZPL(https://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+* @author      sunguangming <sunguangming@easycorp.ltd>
+* @package     story
+* @link        https://www.zentao.net
+*/
+
+namespace zin;
+
+modalHeader(set::title($lang->story->batchChangeParent));
+unset($parents[0]);
+formPanel
+(
+    formGroup
+    (
+        set::label($lang->story->parent),
+        picker
+        (
+            set::name('parent'),
+            set::items($parents)
+        )
+    ),
+);
diff --git a/module/story/ui/batchclose.html.php b/module/story/ui/batchclose.html.php
index 34b772c4c2..f0a79a7215 100644
--- a/module/story/ui/batchclose.html.php
+++ b/module/story/ui/batchclose.html.php
@@ -10,12 +10,13 @@ declare(strict_types=1);
  */
 namespace zin;
 
+data('activeMenuID', $storyType);
 jsVar('twinsCount', $twinsCount);
 jsVar('langTwins', $lang->story->twins . ': ');
 if(!empty($errorTips)) pageJS("zui.Modal.alert({message: '{$errorTips}', icon: 'icon-exclamation-sign', iconClass: 'warning-pale rounded-full icon-2x'});\n");
 
-unset($lang->story->reasonList['subdivided']);
-foreach($lang->story->reasonList as $key => $value)
+unset($lang->{$storyType}->reasonList['subdivided']);
+foreach($lang->{$storyType}->reasonList as $key => $value)
 {
     if($key == 'cancel') continue;
     $reasonList[] = array('text' => $value, 'value' => $key);
diff --git a/module/story/ui/batchcreate.html.php b/module/story/ui/batchcreate.html.php
index b6427dc287..862672b7f7 100644
--- a/module/story/ui/batchcreate.html.php
+++ b/module/story/ui/batchcreate.html.php
@@ -14,10 +14,14 @@ namespace zin;
 
 include($this->app->getModuleRoot() . 'ai/ui/inputinject.html.php');
 
-data('activeMenuID', $type);
+if($app->tab == 'product') data('activeMenuID', $type);
 data('storyType', $type);
 jsVar('storyType', $type);
 jsVar('productID', $productID);
+jsVar('executionID', $executionID);
+jsVar('branch', $branch);
+jsVar('storyID', $storyID);
+data('gradeRule', $gradeRule);
 
 !isAjaxRequest() && dropmenu();
 
@@ -27,7 +31,7 @@ foreach(explode(',', $this->config->story->create->requiredFields) as $requiredF
 }
 
 /* Generate fields for the batch create form. */
-$fnGenerateFields = function() use ($lang, $fields, $stories, $customFields, $showFields)
+$fnGenerateFields = function() use ($app, $lang, $type, $fields, $stories, $customFields, $showFields, $storyID, $gradeRule, $hiddenGrade)
 {
     global $config;
 
@@ -55,22 +59,61 @@ $fnGenerateFields = function() use ($lang, $fields, $stories, $customFields, $sh
     foreach($cols as $index => $col)
     {
         $colName = $col['name'];
-        if(str_contains(",{$config->story->create->requiredFields},", ",{$colName},")) $cols[$index]['required'] = true;
+        if(str_contains(",{$config->{$app->rawModule}->create->requiredFields},", ",{$colName},")) $cols[$index]['required'] = true;
         if(isset($customFields[$colName]) && strpos(",$showFields,", ",$colName,") === false) $cols[$index]['hidden'] = true;
         if($colName == 'sourceNote' && strpos(",$showFields,", ",source,") === false) $cols[$index]['hidden'] = true;
+        if($colName == 'plan' && $type != 'story') $cols[$index]['multiple'] = true;
+        if($colName == 'grade' && $gradeRule == 'stepwise') $cols[$index]['disabled'] = true;
+        if($colName == 'grade' && $hiddenGrade)   $cols[$index]['hidden'] = true;
+        if($colName == 'parent' && $storyID > 0 ) $cols[$index]['hidden'] = true;
+        if($colName == 'spec') unset($cols[$index]['control']);
+        if($colName == 'source')   $cols[$index]['items']    = $lang->{$type}->sourceList;
+        if($colName == 'category') $cols[$index]['items']    = $lang->{$type}->categoryList;
+        if($colName == 'pri')      $cols[$index]['items']    = $lang->{$type}->priList;
+        if($colName == 'grade')    $cols[$index]['required'] = true;
     }
 
     return $cols;
 };
 
+$storyTypeRadio = null;
+if($storyID > 0 && $story->type != 'story' && $config->{$story->type}->gradeRule != 'stepwise')
+{
+    $gradeRule   = $this->config->{$story->type}->gradeRule;
+    $isLastGrade = $story->grade == $maxGradeGroup[$story->type];
+    $disabled    = $story->isParent == '1' || $isLastGrade || ($gradeRule == 'stepwise' && !$isLastGrade);
+
+    $title = '';
+    if($story->isParent == '1')                   $title = $lang->story->errorCannotSplit;
+    if($isLastGrade)                              $title = $lang->story->errorMaxGradeSubdivide;
+    if(!$isLastGrade && $gradeRule == 'stepwise') $title = $lang->story->errorStepwiseSubdivide;
+
+    if($story->type == 'epic')        unset($lang->story->typeList['story']);
+    if($story->type == 'requirement') unset($lang->story->typeList['epic']);
+
+    $storyTypeRadio = radioList
+    (
+        set::name('typeSwitcher'),
+        set::items($lang->story->typeList),
+        set::inline(true),
+        set::value($type),
+        set::disabled($disabled),
+        $title ? set::title($title) : null,
+        on::change('switchType')
+    );
+}
+
 formBatchPanel
 (
     setID('dataform'),
     on::change('[data-name="branch"]', 'setModuleAndPlanByBranch'),
+    on::change('[data-name="parent"]', 'setGrade'),
     on::change('[data-name="region"]', 'changeRegion'),
     $stories ? set::data($stories) : null,
     set::ajax(array('beforeSubmit' => jsRaw('clickSubmit'))),
     set::title($storyID ? $storyTitle . $lang->hyphen . $this->lang->story->subdivide : $this->lang->story->batchCreate),
+    $storyTypeRadio ? set::headingActionsClass('flex-auto') : null,
+    $storyTypeRadio ? to::headingActions($storyTypeRadio) : null,
     set::uploadParams('module=story&params=' . helper::safe64Encode("productID=$productID&branch=$branch&moduleID=$moduleID&storyID=$storyID&executionID=$executionID&plan={$planID}&type=$type")),
     set::pasteField('title'),
     set::customFields(array('list' => $customFields, 'show' => explode(',', $showFields), 'key' => 'batchCreateFields')),
diff --git a/module/story/ui/batchedit.html.php b/module/story/ui/batchedit.html.php
index 953643d345..4befd24822 100644
--- a/module/story/ui/batchedit.html.php
+++ b/module/story/ui/batchedit.html.php
@@ -21,15 +21,17 @@ jsVar('storyType', $storyType);
 
 if(!empty($twinsTip)) pageJS("zui.Modal.alert({message: '{$twinsTip}', icon: 'icon-exclamation-sign', iconClass: 'warning-pale rounded-full icon-2x'});\n");
 
-$fields = $config->story->form->batchEdit;
-
 $items = array();
 $items['storyIdList'] = array('name' => 'storyIdList', 'label' => '', 'control' => 'hidden', 'hidden' => true);
 $items['id']          = array('name' => 'id', 'label' => $lang->idAB, 'control' => 'index', 'width' => '60px');
+$fields = $config->story->form->batchEdit;
 foreach($fields as $fieldName => $field)
 {
     if($fieldName == 'color') continue;
     if(isset($field['options']) && $field['options'] == 'users') $field['options'] = $users;
+    if($fieldName == 'source')   $field['options'] = $lang->{$storyType}->sourceList;
+    if($fieldName == 'pri')      $field['options'] = $lang->{$storyType}->priList;
+    if($fieldName == 'category') $field['options'] = $lang->{$storyType}->categoryList;
     $items[$fieldName] = array('name' => $fieldName, 'label' => zget($lang->story, $fieldName), 'control' => $field['control'], 'width' => $field['width'], 'required' => $field['required'], 'items' => zget($field, 'options', array()));
     if(isset($customFields[$fieldName]) && strpos(",$showFields,", ",$fieldName,") === false) $items[$fieldName]['hidden'] = true;
     if($fieldName == 'sourceNote' && strpos(",$showFields,", ",source,") === false) $items['sourceNote']['hidden'] = true;
@@ -42,12 +44,6 @@ $items['assignedTo']['defaultDitto'] = 'off';
 $items['source']['defaultDitto']     = 'off';
 $items['stage']['defaultDitto']      = 'off';
 
-if($storyType == 'requirement')
-{
-    unset($items['plan']);
-    unset($items['stage']);
-}
-
 if(!$branchProduct) unset($items['branch'], $customFields['branch']);
 
 /* Build form field value for batch edit. */
diff --git a/module/story/ui/batchtotask.html.php b/module/story/ui/batchtotask.html.php
index a9be8cde44..c3124090b9 100644
--- a/module/story/ui/batchtotask.html.php
+++ b/module/story/ui/batchtotask.html.php
@@ -15,6 +15,10 @@ namespace zin;
 data('activeMenuID', 'story');
 jsVar('executionID', $executionID);
 jsVar('langPreview', $lang->preview);
+jsVar('hasParent', $hasParent);
+jsVar('hasERUR', $hasERUR);
+jsVar('errorParentSplitTask', $lang->story->errorParentSplitTask);
+jsVar('errorERURSplitTask', $lang->story->errorERURSplitTask);
 jsVar('copyStoryTitleTip', $lang->task->copyStoryTitle);
 
 $fields = array();
diff --git a/module/story/ui/change.html.php b/module/story/ui/change.html.php
index e8f6da0d78..489677c37e 100644
--- a/module/story/ui/change.html.php
+++ b/module/story/ui/change.html.php
@@ -197,7 +197,7 @@ detailBody
     )),
     sectionList($formItems),
     h::hr(),
-    history()
+    history(set::objectID($story->id))
 );
 
 render();
diff --git a/module/story/ui/close.html.php b/module/story/ui/close.html.php
index 1d28b684ac..3fc272ca47 100644
--- a/module/story/ui/close.html.php
+++ b/module/story/ui/close.html.php
@@ -13,6 +13,7 @@ declare(strict_types=1);
 namespace zin;
 
 jsVar('storyType', $story->type);
+jsVar('storyID', $story->id);
 
 modalHeader();
 formPanel
diff --git a/module/story/ui/create.field.php b/module/story/ui/create.field.php
index 1415b3a48d..5a4028f7f5 100644
--- a/module/story/ui/create.field.php
+++ b/module/story/ui/create.field.php
@@ -5,6 +5,7 @@ global $lang, $config;
 $fields       = defineFieldList('story.create');
 $createFields = data('fields');
 $type         = data('type');
+$gradeRule    = data('gradeRule');
 $isSR         = $type == 'story';
 $isBranchUR   = isset($createFields['branch']) && $type != 'story';
 $isKanban     = data('executionType') == 'kanban';
@@ -42,6 +43,17 @@ if(isset($createFields['branch']) && $type == 'story')
         ));
 }
 
+$fields->field('parent')
+    ->hidden(data('hiddenParent'))
+    ->items($createFields['parent']['options'])
+    ->value($createFields['parent']['default']);
+
+$fields->field('grade')
+    ->hidden(data('hiddenGrade'))
+    ->disabled($gradeRule == 'stepwise')
+    ->required()
+    ->items($createFields['grade']['options'])
+    ->value($createFields['grade']['default']);
 if(isset($createFields['URS']))
 {
     $fields->field('URS')
@@ -87,7 +99,7 @@ $fields->field('assignedTo')
 
 $fields->field('category')
     ->required($createFields['category']['required'])
-    ->items($createFields['category']['options'])
+    ->items($lang->{$type}->categoryList)
     ->value($createFields['category']['default']);
 
 if($isKanban)
@@ -115,7 +127,7 @@ $fields->field('pri')
     ->width('1/4')
     ->required($createFields['pri']['required'])
     ->control('priPicker')
-    ->items($createFields['pri']['options'])
+    ->items($lang->{$type}->priList)
     ->value($createFields['pri']['default']);
 
 $fields->field('estimate')
@@ -139,14 +151,14 @@ $fields->field('verify')
 
 $fields->field('files')->width('full')->control('fileSelector');
 
-if(!isset($createFields['branch']) && $type == 'story' and isset($createFields['plan']))
+if(!(isset($createFields['branch']) && $type == 'story') && isset($createFields['plan']))
 {
     $fields->field('plan')
         ->foldable()
         ->required($createFields['plan']['required'])
         ->control('inputGroup')
         ->items(false)
-        ->itemBegin('plan')->control('picker')->id('planIdBox')->items($createFields['plan']['options'])->value($createFields['plan']['default'])->itemEnd()
+        ->itemBegin('plan')->control('picker')->id('planIdBox')->items($createFields['plan']['options'])->value($createFields['plan']['default'])->multiple($type != 'story')->itemEnd()
         ->item(empty($createFields['plan']['options']) ? field()->control('btn')->icon('plus')->url(createLink('productplan', 'create', 'productID=' . data('productID') . '&branch=' . data('branch')))->set(array('data-toggle' => 'modal', 'data-size' => 'lg'))->set('title', $lang->productplan->create) : null)
         ->item(empty($createFields['plan']['options']) ? field()->control('btn')->icon('refresh')->id("loadProductPlans")->set('title', $lang->refresh) : null);
 }
@@ -155,7 +167,7 @@ $fields->field('source')
     ->foldable()
     ->width('1/4')
     ->required($createFields['source']['required'])
-    ->items($createFields['source']['options'])
+    ->items($lang->{$type}->sourceList)
     ->value($createFields['source']['default']);
 
 $fields->field('sourceNote')
diff --git a/module/story/ui/create.html.php b/module/story/ui/create.html.php
index ea2a0e9e60..d37aa8eaff 100644
--- a/module/story/ui/create.html.php
+++ b/module/story/ui/create.html.php
@@ -14,9 +14,10 @@ namespace zin;
 include($this->app->getModuleRoot() . 'ai/ui/inputinject.html.php');
 
 data('storyType', $type);
-data('activeMenuID', $type);
+data('gradeRule', $gradeRule);
+if($app->tab == 'product') data('activeMenuID', $type);
 
-$forceReview  = $this->story->checkForceReview();
+$forceReview  = $this->story->checkForceReview($type);
 $createFields = useFields('story.create');
 $createFields->field('needNotReview')->value($forceReview ? 0 : 1);
 if(!$forceReview) $createFields->field('reviewer')->hidden(true);
@@ -41,33 +42,19 @@ if(!empty($objectID))
     $createFields->field('source')->className('full:w-1/2');
     $createFields->field('sourceNote')->className('full:w-1/2');
 
-    $orders         = 'product,module,twinsStory,URS,assignedTo,reviewer,region,lane,title,category,pri,estimate,spec,verify,files';
-    $fullModeOrders = 'product,module,twinsStory,plan,URS,reviewer,region,lane,assignedTo,category,title,pri,estimate,spec,verify,files';
+    $orders         = 'product,module,twinsStory,assignedTo,reviewer,region,lane,title,category,pri,estimate,spec,verify,files';
+    $fullModeOrders = 'product,module,twinsStory,plan,reviewer,region,lane,assignedTo,category,title,pri,estimate,spec,verify,files';
     if(!isset($fields['plan']))
     {
-        $createFields->field('category')->width('1/6');
-        $createFields->field('pri')->width('1/6');
-        $createFields->field('estimate')->width('1/6');
         $createFields->field('source')->width('1/2');
         $createFields->field('sourceNote')->width('1/2');
-        $fullModeOrders = 'product,module,twinsStory,URS,assignedTo,reviewer,region,lane,title,category,pri,estimate,spec,verify,files';
-
-        if(!isset($fields['URS']))
-        {
-            $createFields->field('category')->width('1/2');
-            $createFields->field('pri')->width('1/4');
-            $createFields->field('estimate')->width('1/4');
-            $orders         = 'product,module,twinsStory,assignedTo,category,reviewer,region,lane,title,pri,estimate,spec,verify,files';
-            $fullModeOrders = 'product,module,twinsStory,assignedTo,category,reviewer,region,lane,title,pri,estimate,spec,verify,files';
-        }
+        $createFields->field('category')->width('1/2');
+        $createFields->field('pri')->width('1/4');
+        $createFields->field('estimate')->width('1/4');
+        $orders         = 'product,module,twinsStory,assignedTo,category,reviewer,region,lane,title,pri,estimate,spec,verify,files';
+        $fullModeOrders = 'product,module,twinsStory,assignedTo,category,reviewer,region,lane,title,pri,estimate,spec,verify,files';
     }
-    elseif(isset($fields['URS']))
-    {
-        $createFields->field('category')->width('1/6')->className('full:w-1/2');
-        $createFields->field('pri')->width('1/6')->className('full:w-1/4');
-        $createFields->field('estimate')->width('1/6')->className('full:w-1/4');
-    }
-    elseif(!isset($fields['URS']))
+    else
     {
         $createFields->field('category')->className('full:w-1/6');
         $createFields->field('pri')->className('full:w-1/6');
@@ -86,23 +73,19 @@ else
     $createFields->field('sourceNote')->className('full:w-1/2');
     if($type == 'story')
     {
-        if(!isset($fields['branch']) || !isset($fields['URS']))
-        {
-            $createFields->field('category')->width('1/2')->className('full:w-1/6');
-            $createFields->field('pri')->width('1/4')->className('full:w-1/6');
-            $createFields->field('estimate')->width('1/4')->className('full:w-1/6');
-        }
+        $createFields->field('category')->width('1/2')->className('full:w-1/6');
+        $createFields->field('pri')->width('1/4')->className('full:w-1/6');
+        $createFields->field('estimate')->width('1/4')->className('full:w-1/6');
     }
 
-    $fullModeOrders = 'product,module,twinsStory,plan,URS,parent,assignedTo,reviewer,region,lane,title,category,pri,estimate,spec,verify,files';
-    if($type != 'story') $fullModeOrders = 'product,module,twinsStory,plan,URS,parent,reviewer,region,lane,assignedTo,category,title,pri,estimate,spec,verify,files';
+    $fullModeOrders = 'product,module,twinsStory,plan,parent,grade,assignedTo,reviewer,region,lane,title,category,pri,estimate,spec,verify,files';
+    if($type != 'story') $fullModeOrders = 'product,module,twinsStory,plan,parent,grade,reviewer,region,lane,assignedTo,category,title,pri,estimate,spec,verify,files';
     if($type == 'story' and isset($fields['branch']))
     {
-        $fullModeOrders = 'product,module,twinsStory,plan,URS,parent,reviewer,region,lane,assignedTo,category,title,pri,estimate,spec,verify,files';
-        if(!isset($fields['URS'])) $fullModeOrders = 'product,module,twinsStory,reviewer,region,lane,plan,assignedTo,title,category,pri,estimate,spec,verify,files';
+        $fullModeOrders = 'product,module,twinsStory,plan,parent,grade,reviewer,region,lane,assignedTo,category,title,pri,estimate,spec,verify,files';
     }
 
-    $createFields->orders('product,module,twinsStory,URS,parent,reviewer,region,lane,assignedTo,category,title,pri,estimate,spec,verify,files');
+    $createFields->orders('product,module,twinsStory,parent,grade,reviewer,region,lane,assignedTo,category,title,pri,estimate,spec,verify,files');
     $createFields->fullModeOrders($fullModeOrders);
 }
 
@@ -130,9 +113,9 @@ formGridPanel
         !isInModal() ? array('text' => $lang->goback, 'back' => true) : null
     )),
     set::fields($createFields),
-    on::click('#loadURS', "loadURS"),
     on::click('#loadProductPlans', "loadProductPlans('{$productID}')"),
     on::change('[name=module]', 'loadURS'),
+    on::change('[name=parent]', 'loadGrade'),
     on::change('[name=product]', 'loadProduct'),
     on::change('[name=source]', "toggleFeedback(e.target)"),
     on::change('[name=region]', 'setLane'),
diff --git a/module/story/ui/edit.html.php b/module/story/ui/edit.html.php
index 84da240cbd..a09ceec28a 100644
--- a/module/story/ui/edit.html.php
+++ b/module/story/ui/edit.html.php
@@ -12,11 +12,11 @@ declare(strict_types=1);
 namespace zin;
 
 $canEditContent = str_contains(',draft,changing,', ",{$story->status},");
-$forceReview    = $this->story->checkForceReview();
+$forceReview    = $this->story->checkForceReview($story->type);
 $assignedToList = $story->status == 'closed' ? array('closed' => 'Closed') : $users;
 
 $planCount    = !empty($story->planTitle) ? count($story->planTitle) : 0;
-$multiplePlan = ($product->type != 'normal' && empty($story->branch) && $planCount > 1);
+$multiplePlan = ($product->type != 'normal' && empty($story->branch) && $planCount > 1) || ($story->type != 'story');
 
 $minStage    = $story->stage;
 $stageList   = implode(',', array_keys($this->lang->story->stageList));
@@ -34,17 +34,24 @@ if(!empty($story->stages) && isset($fields['stage']['options']))
     }
 }
 
-data('activeMenuID', $story->type);
+unset($fields['stage']['options']['defining']);
+unset($fields['stage']['options']['planning']);
+unset($fields['stage']['options']['delivering']);
+
+if($app->tab == 'product') data('activeMenuID', $story->type);
 jsVar('storyType', $story->type);
 jsVar('storyID', $story->id);
 jsVar('storyStatus', $story->status);
+jsVar('isParent', $story->isParent);
+jsVar('oldProductID', $story->product);
+jsVar('oldGrade', $story->grade);
+jsVar('oldParent', $story->parent);
 jsVar('lastReviewer', explode(',', $lastReviewer));
 jsVar('storyReviewers', $storyReviewers);
 jsVar('reviewerNotEmpty', $lang->story->notice->reviewerNotEmpty);
-jsVar('oldProductID', $story->product);
 jsVar('twins', $story->twins);
 jsVar('relievedTwinsTip', $lang->story->relievedTwinsTip);
-jsVar('parentStory', !empty($story->children));
+jsVar('changeProductTips', $lang->story->changeProductTips);
 jsVar('moveChildrenTips', $lang->story->moveChildrenTips);
 jsVar('executionID', isset($objectID) ? $objectID : 0);
 jsVar('langTreeManage', $lang->tree->manage);
@@ -71,6 +78,7 @@ detailBody
     setID('dataform'),
     set::isForm(true),
     set::ajax(array('beforeSubmit' => jsRaw('clickSubmit'))),
+    on::change('[name=parent]', 'loadGrade'),
     $canEditContent ? set::actions(array
     (
         array('btnType' => 'submit', 'class' => 'primary',   'data-status' => 'active', 'text' => $lang->save),
@@ -189,7 +197,7 @@ detailBody
             formGroup(editor(set::name('comment')))
         )
     ),
-    history(),
+    history(set::objectID($story->id)),
     detailSide
     (
         set::isForm(true),
@@ -197,7 +205,7 @@ detailBody
         (
             setClass('mt-5'),
             set::title($lang->story->legendBasicInfo),
-            $story->parent <= 0 && !$product->shadow ? item
+            !$product->shadow ? item
             (
                 set::trClass(zget($fields['product'], 'className', '')),
                 set::name($lang->story->product),
@@ -241,13 +249,18 @@ detailBody
                     set::manageLink(createLink('tree', 'browse', "rootID={$story->product}&view=story&currentModuleID=0&branch={$story->branch}"))
                 )
             ),
-            $story->parent >= 0 && $story->type == 'story' ? item
+            ($story->parent >= 0 && ($showGrade || $story->type != 'epic')) ? item
             (
                 set::trClass($app->tab == 'product' ? zget($fields['parent'], 'className', '') : 'hidden'),
                 set::name($lang->story->parent),
                 picker(setID('parent'), set::name('parent'), set::items($fields['parent']['options']), set::value($fields['parent']['default']))
-            ) : formHidden('parent', $story->parent),
-            $story->type == 'story' && $story->parent >= 0 ? item
+            ) : null,
+            $showGrade ? item
+            (
+                set::name($lang->story->grade),
+                picker(setID('grade'), set::name('grade'), set::required(true), set::items($fields['grade']['options']), set::value($story->grade), set::disabled($gradeRule == 'stepwise'))
+            ) : picker(setID('grade'), set::name('grade'), set::required(true), set::items($fields['grade']['options']), set::value($story->grade), set::hidden(true)),
+            item
             (
                 set::trClass(zget($fields['plan'], 'className', '')),
                 set::name($lang->story->plan),
@@ -261,12 +274,12 @@ detailBody
                     empty($fields['plan']['options']) ? btn(set::url($this->createLink('productplan', 'create', "productID={$story->product}&branch={$story->branch}")), setData(array('toggle' => 'modal')), icon('plus')) : null,
                     empty($fields['plan']['options']) ? btn(set('onclick', "loadProductPlans({$story->product}, {$story->branch})"), setClass('refresh'), icon('refresh')) : null
                 )
-            ) : null,
+            ),
             item
             (
                 set::trClass('sourceBox'),
                 set::name($lang->story->source),
-                picker(setID('source'), set::name('source'), set::items($fields['source']['options']), set::value($fields['source']['default']), on::change('window.toggleFeedback(e.target)'))
+                picker(setID('source'), set::name('source'), set::items($lang->{$story->type}->sourceList), set::value($fields['source']['default']), on::change('window.toggleFeedback(e.target)'))
             ),
             item
             (
@@ -280,25 +293,25 @@ detailBody
                 span(setClass("status-{$story->status}"), $this->processStatus('story', $story)),
                 formHidden('status', $story->status)
             ),
-            $story->type == 'story' ? item
+            ($story->type == 'story' && $story->isParent == '0') ? item
             (
                 set::name($lang->story->stage),
                 picker(setID('stage'), set::name('stage'), set::items($fields['stage']['options']), set::value($minStage))
-            ) : null,
+            ) : formHidden('stage', $story->stage),
             item
             (
                 set::name($lang->story->category),
-                picker(setID('category'), set::name('category'), set::items($fields['category']['options']), set::value($fields['category']['default']))
+                picker(setID('category'), set::name('category'), set::items($lang->{$story->type}->categoryList), set::value($fields['category']['default']))
             ),
             item
             (
                 set::name($lang->story->pri),
-                priPicker(set::name('pri'), set::items($fields['pri']['options']), set::value($fields['pri']['default']))
+                priPicker(set::name('pri'), set::items($lang->{$story->type}->priList), set::value($fields['pri']['default']))
             ),
             item
             (
                 set::name($lang->story->estimate),
-                $story->parent >= 0 ? input(set::name('estimate'), set::value($story->estimate)) : $story->estimate
+                $story->isParent == '0' ? input(set::name('estimate'), set::value($story->estimate)) : $story->estimate
             ),
             item
             (
@@ -366,56 +379,16 @@ detailBody
                 picker(setID('closedReason'), set::name('closedReason'), set::items($fields['closedReason']['options']), set::value($fields['closedReason']['default']), on::change('setStory'))
             ) : null,
         ),
-        tableData
+        $story->status == 'closed' ? tableData
         (
             set::title($lang->story->legendMisc),
-            $story->status == 'closed' ? item
+            item
             (
                 set::trClass('duplicateStoryBox'),
                 set::name($lang->story->duplicateStory),
                 picker(setID('duplicateStory'), set::name('duplicateStory'), set::items($fields['duplicateStory']['options']), set::value($fields['duplicateStory']['default']), set::placeholder($lang->bug->placeholder->duplicate))
-            ) : null,
-            item
-            (
-                set::name($story->type == 'story' ? $lang->requirement->linkStory : $lang->story->linkStory),
-                ($story->type == 'story' && common::hasPriv('story', 'linkStories')) ? btn
-                (
-                    setClass('secondary'),
-                    setID('linkStoriesLink'),
-                    setData(array('toggle' => 'modal', 'size' => 'lg')),
-                    on::click('linkStories'),
-                    $lang->story->linkStoriesAB
-                ) : null,
-                ($story->type == 'requirement' && common::hasPriv('requirement', 'linkRequirements')) ? btn
-                (
-                    setClass('secondary'),
-                    setID('linkStoriesLink'),
-                    setData(array('toggle' => 'modal', 'size' => 'lg')),
-                    on::click('linkStories'),
-                    $lang->story->linkRequirementsAB
-                ) : null
             ),
-            item
-            (
-                set::name(' '),
-                !empty($story->linkStoryTitles) ? div
-                (
-                    setID('linkedStories'),
-                    array_values(array_map(function($linkStoryID, $linkStoryTitle) use($story)
-                    {
-                        $linkStoryField = $story->type == 'story' ? 'linkStories' : 'linkRequirements';
-                        return div
-                        (
-                            set::title($linkStoryTitle),
-                            checkbox(set::name($linkStoryField . '[]'), set::rootClass('inline'), set::value($linkStoryID), set::checked(true)),
-                            label(setClass('circle size-sm'), $linkStoryID),
-                            span(setClass('linkStoryTitle'), $linkStoryTitle)
-                        );
-                    }, array_keys($story->linkStoryTitles), array_values($story->linkStoryTitles)))
-                ) : null,
-                div(setID('linkStoriesBox'))
-            )
-        )
+        ) : null
     )
 );
 
diff --git a/module/story/ui/linkstories.html.php b/module/story/ui/linkstories.html.php
deleted file mode 100644
index b4bdef8f2d..0000000000
--- a/module/story/ui/linkstories.html.php
+++ /dev/null
@@ -1,90 +0,0 @@
-<?php
-declare(strict_types=1);
-/**
-* The UI file of story module of ZenTaoPMS.
-*
-* @copyright   Copyright 2009-2023 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.zentao.net)
-* @license     ZPL(https://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
-* @author      Wang Yidong <yidong@easycorp.ltd>
-* @package     story
-* @link        https://www.zentao.net
-*/
-
-namespace zin;
-
-$storyType = $story->type;
-
-$cols = array();
-$cols['id']  = $config->story->dtable->fieldList['id'];
-$cols['pri'] = $config->story->dtable->fieldList['pri'];
-if(!empty($product->shadow)) $cols['product'] = $config->story->dtable->fieldList['product'];
-$cols['title']      = $config->story->dtable->fieldList['title'];
-$cols['status']     = $config->story->dtable->fieldList['status'];
-$cols['openedBy']   = $config->story->dtable->fieldList['openedBy'];
-$cols['assignedTo'] = $config->story->dtable->fieldList['assignedTo'];
-
-$data = array();
-foreach($stories2Link as $story) $data[] = $this->story->formatStoryForList($story);
-
-modalHeader(set::title($story->type == 'story' ? $lang->story->linkStoriesAB : $lang->story->linkRequirementsAB));
-
-searchForm
-(
-    set::module('story'),
-    set::simple(true),
-    set::show(true)
-);
-
-dtable
-(
-    setID('linkStories'),
-    set::userMap($users),
-    set::cols($cols),
-    set::data($data),
-    set::checkboxLabel($lang->selectAll),
-    set::footPager(usePager()),
-    set::footer(array('checkbox', 'toolbar', 'flex', 'pager')),
-);
-
-div
-(
-    setClass('flex justify-center gap-4 p-4'),
-    btn
-    (
-        setClass('px-6'),
-        set::type('primary'),
-        set::btnType('button'),
-        set::text($lang->save),
-        setData(array('on' => 'click', 'call' => 'fnLinkStories', 'params' => 'event')),
-    ),
-    isInModal() ? null : backBtn(setClass('px-6'))
-);
-
-h::js
-(
-<<<EOD
-window.fnLinkStories = function(e)
-{
-    let dtable      = zui.DTable.query('#linkStories');
-    let checkedList = dtable.$.getChecks();
-    let itemBoxHtml = '';
-    let index       = $('#linkStoriesBox > div').length;
-    checkedList.forEach(function(id)
-    {
-        var linkStoryField = '{$storyType}' == 'story' ? 'linkStories' : 'linkRequirements';
-        var storyInfo      = dtable.$.getRowInfo(id).data;
-        var checkbox       = "<div class='checkbox-primary inline'><input type='checkbox' id='" + linkStoryField + '_' + index + "' checked='checked' name='" + linkStoryField + "[]' " + "value=" + storyInfo.id + " /><label for='" + linkStoryField + '_' + index + "'></label></div>";
-        var idLabel        = "<span class='label circle size-sm'>" + storyInfo.id + "</span>";
-        var titleSpan      = "<span class='linkStoryTitle'>" + storyInfo.title + "</span>";
-
-        itemBoxHtml += "<div title='" + storyInfo.title + "'>" + checkbox + idLabel + titleSpan + "</div>";
-        index ++;
-    });
-
-    $('#linkStoriesBox').append(itemBoxHtml);
-    zui.Modal.hide('#' + $(e.target).closest('.modal').attr('id'));
-};
-EOD
-);
-
-render();
diff --git a/module/story/ui/linkstory.html.php b/module/story/ui/linkstory.html.php
index 76c7f64170..a52fa5463a 100644
--- a/module/story/ui/linkstory.html.php
+++ b/module/story/ui/linkstory.html.php
@@ -14,14 +14,14 @@ namespace zin;
 
 $pageParams = http_build_query($app->getParams());
 
-$config->story->dtable->fieldList['title']['title'] = $lang->story->title;
+$config->story->dtable->fieldList['title']['title'] = $lang->story->name;
 
 $cols = array();
-$cols['id']     = $config->story->dtable->fieldList['id'];
-$cols['title']  = $config->story->dtable->fieldList['title'];
-$cols['pri']    = $config->story->dtable->fieldList['pri'];
-$cols['status'] = $config->story->dtable->fieldList['status'];
-if($story->type == 'requirement') $cols['stage'] = $config->story->dtable->fieldList['stage'];
+$cols['id']       = $config->story->dtable->fieldList['id'];
+$cols['title']    = $config->story->dtable->fieldList['title'];
+$cols['pri']      = $config->story->dtable->fieldList['pri'];
+$cols['status']   = $config->story->dtable->fieldList['status'];
+$cols['stage']    = $config->story->dtable->fieldList['stage'];
 $cols['openedBy'] = $config->story->dtable->fieldList['openedBy'];
 $cols['estimate'] = $config->story->dtable->fieldList['estimate'];
 $cols['title']['nestedToggle'] = false;
@@ -29,9 +29,9 @@ $cols['title']['flex']         = 1;
 $cols = array_map(function($col){unset($col['sortType']); return $col;}, $cols);
 
 $data = array();
-foreach($stories2Link as $linkStory) $data[] = $this->story->formatStoryForList($linkStory);
+foreach($stories2Link as $linkStory) $data[] = $this->story->formatStoryForList($linkStory, array(), $linkStory->type, $maxGradeGroup);
 
-modalHeader(set::title($lang->story->link . ($story->type == 'story' ? $lang->story->requirement : $lang->story->story)));
+modalHeader(set::title($lang->story->linkStory));
 
 searchForm
 (
@@ -46,8 +46,8 @@ dtable
     set::userMap($users),
     set::cols($cols),
     set::data($data),
+    set::footPager(usePager()),
     set::checkboxLabel($lang->selectAll),
-    set::footer(array('checkbox', 'toolbar'))
 );
 
 div
diff --git a/module/story/ui/report.html.php b/module/story/ui/report.html.php
index 3b0027d93b..fb424b73fc 100644
--- a/module/story/ui/report.html.php
+++ b/module/story/ui/report.html.php
@@ -10,10 +10,10 @@ declare(strict_types=1);
  */
 
 namespace zin;
-data('activeMenuID', $storyType);
 jsVar('params', "productID={$productID}&branchID={$branchID}&storyType={$storyType}&browseType={$browseType}&moduleID={$moduleID}");
 jsVar('projectID', $projectID);
 jsVar('storyType', $storyType);
+data('activeMenuID', $storyType);
 
 detailHeader
 (
diff --git a/module/story/ui/review.html.php b/module/story/ui/review.html.php
index 318dd464d7..dddf158103 100644
--- a/module/story/ui/review.html.php
+++ b/module/story/ui/review.html.php
@@ -18,6 +18,8 @@ jsVar('rawModule', $this->app->rawModule);
 jsVar('isMultiple', count($reviewers) > 1);
 jsVar('isLastOne', $isLastOne);
 
+if($story->isParent == '1') $fields['estimate']['readonly'] = true;
+
 $formItems = array();
 foreach($fields as $field => $attr)
 {
@@ -29,8 +31,8 @@ foreach($fields as $field => $attr)
 
     $formItems[$field] = formRow
     (
-        in_array($field, array('assignedTo', 'duplicateStory', 'pri', 'estimate', 'childStories')) ? setID($field . 'Box') : null,
-        in_array($field, array('closedReason', 'duplicateStory', 'pri', 'estimate', 'childStories', 'status')) ? set::hidden(true) : null,
+        in_array($field, array('assignedTo', 'duplicateStory', 'pri', 'estimate')) ? setID($field . 'Box') : null,
+        in_array($field, array('closedReason', 'duplicateStory', 'pri', 'estimate', 'status')) ? set::hidden(true) : null,
 
         $field == 'closedReason' ? setID('rejectedReasonBox') : null,
         $field == 'assignedTo'   ? set::hidden(!$isLastOne) : null,
@@ -44,7 +46,8 @@ foreach($fields as $field => $attr)
             set::label($attr['title']),
             set::control($control),
             set::value($attr['default']),
-            set::required($attr['required'])
+            set::required($attr['required']),
+            set::readonly(!empty($attr['readonly']))
         )
     );
 }
@@ -56,7 +59,7 @@ panel
     setClass('panel-form mx-auto'),
     form($formItems),
     h::hr(setClass('mt-6 mb-6')),
-    history()
+    history(set::objectID($story->id))
 );
 
 render();
diff --git a/module/story/ui/submitreview.html.php b/module/story/ui/submitreview.html.php
index 352d392dac..7f364e137d 100644
--- a/module/story/ui/submitreview.html.php
+++ b/module/story/ui/submitreview.html.php
@@ -16,7 +16,7 @@ jsVar('lastReviewer', $reviewers);
 jsVar('storyType', $story->type);
 
 $needNotReviewBox = null;
-if(!$this->story->checkForceReview())
+if($needReview)
 {
     $needNotReviewBox = span
     (
@@ -52,7 +52,7 @@ formPanel
                 set::value($story->reviewer),
                 set::multiple(true),
                 set::items($reviewers),
-                set::disabled(!$this->story->checkForceReview() && $needReview)
+                set::disabled(!$this->story->checkForceReview($story->type) && $needReview)
             ),
             $needNotReviewBox
         )
diff --git a/module/story/ui/view.html.php b/module/story/ui/view.html.php
index 09aae8ef35..f2294d1905 100644
--- a/module/story/ui/view.html.php
+++ b/module/story/ui/view.html.php
@@ -17,6 +17,7 @@ include($this->app->getModuleRoot() . 'ai/ui/promptmenu.html.php');
 $isInModal     = isInModal();
 $isRequirement = $story->type == 'requirement';
 $isStoryType   = $story->type == 'story';
+if(empty($executionID)) $executionID = 0;
 
 /* 版本列表。Version list. */
 $versions = array();
@@ -36,7 +37,7 @@ for($i = $story->version; $i >= 1; $i--)
 }
 
 /* 根据需求类型，设置要激活的导航项。Active navbar item by story type. */
-setPageData('activeMenuID', $story->type);
+if($app->tab == 'product') setPageData('activeMenuID', $story->type);
 
 /* 初始化头部右上方工具栏。Init detail toolbar. */
 $toolbar = array();
@@ -49,7 +50,7 @@ if(!$isInModal && hasPriv('story', 'create'))
         'icon' => 'plus',
         'type' => 'primary',
         'text' => $lang->story->create,
-        'url'  => createLink('story', 'create', "productID={$story->product}&branch={$story->branch}&moduleID={$story->module}&$otherParam&bugID=0&planID=0&todoID=0&extra=&storyType=$story->type")
+        'url'  => createLink($story->type, 'create', "productID={$story->product}&branch={$story->branch}&moduleID={$story->module}&$otherParam&bugID=0&planID=0&todoID=0&extra=&storyType=$story->type")
     );
 }
 
@@ -87,9 +88,10 @@ if($story->children)
     $cols['estimate']   = $config->story->dtable->fieldList['estimate'];
     $cols['status']     = $config->story->dtable->fieldList['status'];
     $cols['actions']    = $config->story->dtable->fieldList['actions'];
+    $cols['title']['title']        = $lang->story->name;
     $cols['id']['checkbox']        = false;
     $cols['title']['nestedToggle'] = false;
-    $cols['actions']['minWidth']   = 190;
+    $cols['actions']['minWidth']   = 200;
     if($isInModal)
     {
         $cols['title']['data-toggle'] = 'modal';
@@ -99,11 +101,11 @@ if($story->children)
     foreach(array_keys($cols) as $fieldName) $cols[$fieldName]['sortType'] = false;
 
     $options = array('users' => $users);
-    foreach($story->children as $child) $child = $this->story->formatStoryForList($child, $options);
+    foreach($story->children as $child) $child = $this->story->formatStoryForList($child, $options, $child->type, $maxGradeGroup);
 
     $sections[] = array
     (
-        'title'          => $isRequirement ? $lang->story->story : $lang->story->children,
+        'title'          => $lang->story->children,
         'control'        => 'dtable',
         'id'             => 'table-story-children',
         'cols'           => $cols,
@@ -139,11 +141,11 @@ if($twins)
         ->items($twins);
 }
 
-if($this->config->URAndSR && !$hiddenURS && !in_array($config->vision, array('lite', 'or')))
+if(!in_array($config->vision, array('lite', 'or')))
 {
     $tabs[] = setting()
         ->group('relatives')
-        ->title($isStoryType ? $lang->story->requirement : $lang->story->story)
+        ->title($lang->story->linkStories)
         ->control('linkedStoryList')
         ->items($relations)
         ->story($story);
@@ -168,7 +170,7 @@ if($config->vision != 'lite')
 }
 
 $parentTitle = $story->parent > 0 ? set::parentTitle($story->parentName) : null;
-$parentUrl   = $story->parent > 0 ? set::parentUrl(createLink('story', 'view', "storyID={$story->parent}&version=0&param=0&storyType=$story->type")) : null;
+$parentUrl   = $story->parent > 0 ? set::parentUrl(createLink($story->parentType, 'view', "storyID={$story->parent}&version=0&param=0&storyType=$story->type")) : null;
 
 $versionBtn = count($versions) > 1 ? to::title(dropdown
 (
@@ -199,6 +201,29 @@ foreach($actions as $key => $action)
         continue;
     }
 
+    if(isset($action['icon']) && $action['icon'] == 'split')
+    {
+        $canBatchCreateStory = $story->grade < $maxGradeGroup[$story->type] && empty($story->hasOtherTypeChild);
+        $objectID = $app->tab == 'project' ? $projectID : $executionID;
+        if($canBatchCreateStory)
+        {
+            $action['url'] = createLink($story->type, 'batchCreate', "productID=$story->product&branch=$story->branch&moduleID=$story->module&storyID=$story->id&executionID=$objectID");
+        }
+        elseif($story->type == 'epic' && common::hasPriv('requirement', 'batchCreate') && empty($story->hasSameTypeChild) && !($this->config->epic->gradeRule == 'stepwise' && $story->grade < $maxGradeGroup['epic']))
+        {
+            $action['url'] = createLink('requirement', 'batchCreate', "productID=$story->product&branch=$story->branch&moduleID=$story->module&storyID=$story->id&executionID=$objectID");
+        }
+        elseif($story->type == 'requirement' && common::hasPriv('story', 'batchCreate') && empty($story->hasSameTypeChild) && !($this->config->requirement->gradeRule == 'stepwise' && $story->grade < $maxGradeGroup['requirement']))
+        {
+            $action['url'] = createLink('story', 'batchCreate', "productID=$story->product&branch=$story->branch&moduleID=$story->module&storyID=$story->id&executionID=$objectID");
+        }
+        else
+        {
+            unset($actions[$key]);
+            continue;
+        }
+    }
+
     if($isInModal && !isset($actions[$key]['data-toggle']) && !isset($actions[$key]['data-load']))
     {
         $actions[$key]['data-load'] = 'modal';
diff --git a/module/story/view/sendmail.html.php b/module/story/view/sendmail.html.php
index 5282167564..f88fd79e5d 100644
--- a/module/story/view/sendmail.html.php
+++ b/module/story/view/sendmail.html.php
@@ -10,7 +10,7 @@
  * @link        https://www.zentao.net
  */
 ?>
-<?php $mailTitle = 'STORY #' . $object->id . ' ' . $object->title;?>
+<?php $mailTitle = strtoupper($object->type) . ' #' . $object->id . ' ' . $object->title;?>
 <?php include $this->app->getModuleRoot() . 'common/view/mail.header.html.php';?>
 <tr>
   <td>
@@ -18,7 +18,7 @@
       <tr>
         <td style='padding: 10px; background-color: #F8FAFE; border: none; font-size: 14px; font-weight: 500; border-bottom: 1px solid #e5e5e5;'>
           <?php $color = empty($object->color) ? '#333' : $object->color;?>
-          <?php echo html::a($domain . helper::createLink('story', 'view', "storyID=$object->id", 'html'), $mailTitle, '', "style='color: {$color}; text-decoration: underline;'");?>
+          <?php echo html::a($domain . helper::createLink($object->type, 'view', "storyID=$object->id", 'html'), $mailTitle, '', "style='color: {$color}; text-decoration: underline;'");?>
         </td>
       </tr>
     </table>
diff --git a/module/story/zen.php b/module/story/zen.php
index d043c76842..012de6b85f 100644
--- a/module/story/zen.php
+++ b/module/story/zen.php
@@ -71,10 +71,11 @@ class storyZen extends story
      * @param  string    $branch
      * @param  int       $executionID
      * @param  string    $extra
+     * @param  string    $storyType
      * @access protected
      * @return void
      */
-    protected function setMenuForBatchCreate(int $productID, string $branch = '', int $executionID = 0, string $extra = ''): void
+    protected function setMenuForBatchCreate(int $productID, string $branch = '', int $executionID = 0, string $extra = '', $storyType = 'story'): void
     {
         $this->view->hiddenProduct = false;
         $this->view->hiddenPlan    = false;
@@ -125,7 +126,7 @@ class storyZen extends story
                 $output      = $this->story->parseExtra($extra);
                 $regionPairs = $this->kanban->getRegionPairs($executionID, 0, 'execution');
                 $regionID    = !empty($output['regionID']) ? $output['regionID'] : key($regionPairs);
-                $lanePairs   = $this->kanban->getLanePairsByRegion((int)$regionID, 'story');
+                $lanePairs   = $this->kanban->getLanePairsByRegion((int)$regionID, $storyType);
                 $laneID      = !empty($output['laneID']) ? $output['laneID'] : key($lanePairs);
 
                 $this->view->regionID    = $regionID;
@@ -187,7 +188,7 @@ class storyZen extends story
             $this->loadModel('my');
             if($from == 'work' || $from == 'contribute')
             {
-                $this->lang->my->menu->{$from}['subModule'] = 'story';
+                $this->lang->my->menu->{$from}['subModule'] = $storyType;
                 $this->lang->my->menu->{$from}['subMenu']->{$storyType}['subModule'] = 'story';
             }
             return;
@@ -251,7 +252,7 @@ class storyZen extends story
         {
             if($from == 'work' || $from == 'contribute')
             {
-                $this->lang->my->menu->{$from}['subModule'] = 'story';
+                $this->lang->my->menu->{$from}['subModule'] = $storyType;
                 $this->lang->my->menu->{$from}['subMenu']->{$storyType}['subModule'] = 'story';
             }
 
@@ -268,10 +269,11 @@ class storyZen extends story
      *
      * @param  int       $objectID
      * @param  array     $kanbanSetting
+     * @param  string    $storyType
      * @access protected
      * @return void
      */
-    protected function setViewVarsForKanban(int $objectID, array $kanbanSetting): void
+    protected function setViewVarsForKanban(int $objectID, array $kanbanSetting, string $storyType = 'story'): void
     {
         if(empty($objectID)) return;
 
@@ -281,7 +283,7 @@ class storyZen extends story
         /* 如果是看板执行，设置看板的view变量。 */
         $regionPairs = $this->loadModel('kanban')->getRegionPairs($execution->id, 0, 'execution');
         $regionID    = !empty($kanbanSetting['regionID']) ? $kanbanSetting['regionID'] : key($regionPairs);
-        $lanePairs   = $this->kanban->getLanePairsByRegion((int)$regionID, 'story');
+        $lanePairs   = $this->kanban->getLanePairsByRegion((int)$regionID, $storyType);
         $laneID      = !empty($kanbanSetting['laneID']) ? $kanbanSetting['laneID'] : key($lanePairs);
 
         $this->view->executionType = 'kanban';
@@ -476,10 +478,11 @@ class storyZen extends story
      * @param  string    $branch
      * @param  int       $objectID
      * @param  object    $initStory
+     * @param  string    $storyType
      * @access protected
      * @return array
      */
-    protected function getFormFieldsForCreate(int $productID, string $branch, int $objectID, object $initStory): array
+    protected function getFormFieldsForCreate(int $productID, string $branch, int $objectID, object $initStory, string $storyType = 'story'): array
     {
         $account = $this->app->user->account;
         $fields  = $this->config->story->form->create;
@@ -493,22 +496,24 @@ class storyZen extends story
         }
         $branch = str_contains($branch, ',') ? current(explode(',', $branch)) : $branch;
 
-        $product     = $this->product->getByID($productID);
-        $users       = $this->user->getPairs('pdfirst|noclosed|nodeleted');
-        $stories     = $this->story->getParentStoryPairs($productID);
-        $plans       = $this->loadModel('productplan')->getPairs($productID, $branch == 0 ? '' : $branch, 'unexpired|noclosed', true);
-        $plans       = array_map(function($planName){return str_replace(FUTURE_TIME, $this->lang->story->undetermined, $planName);}, $plans);
-        $forceReview = $this->story->checkForceReview();
-        $needReview  = ($account == $product->PO || $objectID > 0 || $this->config->story->needReview == 0 || !$forceReview);
-        $reviewers   = $this->story->getProductReviewers($productID);
+        $product        = $this->product->getByID($productID);
+        $users          = $this->user->getPairs('pdfirst|noclosed|nodeleted');
+        $stories        = $this->story->getParentStoryPairs($productID, '', $storyType);
+        $grades         = $this->story->getGradePairs($storyType);
+        $plans          = $this->loadModel('productplan')->getPairs($productID, $branch == 0 ? '' : $branch, 'unexpired|noclosed', true);
+        $plans          = array_map(function($planName){return str_replace(FUTURE_TIME, $this->lang->story->undetermined, $planName);}, $plans);
+        $forceReview    = $this->story->checkForceReview($storyType);
+        $needReview     = ($account == $product->PO || $objectID > 0 || $this->config->{$storyType}->needReview == 0 || !$forceReview);
+        $reviewers      = $this->story->getProductReviewers($productID);
+        $requiredFields = $this->config->{$storyType}->create->requiredFields;
 
         /* 追加字段的name、title属性，展开user数据。 */
         foreach($fields as $field => $attr)
         {
             if(isset($attr['options']) and $attr['options'] == 'users') $fields[$field]['options'] = $users;
-            if(!isset($fields[$field]['name']))  $fields[$field]['name']  = $field;
-            if(!isset($fields[$field]['title'])) $fields[$field]['title'] = zget($this->lang->story, $field);
-            if(strpos(",{$this->config->story->create->requiredFields},", ",$field,") !== false) $fields[$field]['required'] = true;
+            if(!isset($fields[$field]['name']))       $fields[$field]['name']     = $field;
+            if(!isset($fields[$field]['title']))      $fields[$field]['title']    = zget($this->lang->story, $field);
+            if(str_contains($requiredFields, $field)) $fields[$field]['required'] = true;
         }
 
         /* 设置下拉菜单内容。 */
@@ -517,6 +522,8 @@ class storyZen extends story
         $fields['branches']['options'] = $branches;
         $fields['plan']['options']     = $plans;
         $fields['plans']['options']    = $plans;
+        $fields['grade']['options']    = $grades;
+        $fields['grade']['default']    = current($grades);
         $fields['reviewer']['options'] = $reviewers;
         $fields['parent']['options']   = array_filter($stories);
 
@@ -543,6 +550,7 @@ class storyZen extends story
         $this->view->objectID    = $objectID;
         $this->view->forceReview = $forceReview;
         $this->view->needReview  = $needReview;
+        $this->view->gradeRule   = $this->config->{$storyType}->gradeRule;
 
         return $fields;
     }
@@ -561,9 +569,11 @@ class storyZen extends story
 
         /* 准备数据。*/
         $story        = $this->view->story;
+        $parent       = $this->story->fetchByID($story->parent);
+        $grades       = $this->story->getGradeOptions($parent, $story->type, (array)$story->grade);
         $product      = $this->view->product;
         $users        = $this->loadModel('user')->getPairs('pofirst|nodeleted|noclosed', "$story->assignedTo,$story->openedBy,$story->closedBy");
-        $stories      = $this->story->getParentStoryPairs($story->product, $story->parent);
+        $stories      = $this->story->getParentStoryPairs($story->product, $story->parent, $story->type, $storyID);
         $plans        = $this->loadModel('productplan')->getPairs($story->product, $story->branch == 0 ? 'all' : $story->branch, '', true);
         $reviewerList = $this->story->getReviewerPairs($story->id, $story->version);
 
@@ -611,6 +621,7 @@ class storyZen extends story
         $fields['plan']['options']           = $plans;
         $fields['reviewer']['options']       = $reviewers;
         $fields['parent']['options']         = array_filter($stories);
+        $fields['grade']['options']          = $grades;
         $fields['duplicateStory']['options'] = $productStories;
         $fields['assignedTo']['options']    += array('closed' => 'Closed');
 
@@ -619,6 +630,7 @@ class storyZen extends story
 
         $this->view->users          = $users;
         $this->view->storyReviewers = array_keys($reviewerList);
+        $this->view->gradeRule      = $this->config->{$story->type}->gradeRule;
 
         return $fields;
     }
@@ -638,6 +650,8 @@ class storyZen extends story
         $product = $this->loadModel('product')->getByID($productID);
         $fields  = $this->config->story->form->batchCreate;
 
+        foreach(explode(',', trim($this->config->{$storyType}->create->requiredFields, ',')) as $field) $fields[$field]['required'] = true;
+
         if($executionID)
         {
             $productBranches = $product->type != 'normal' ? $this->loadModel('execution')->getBranchByProduct(array($productID), $executionID, 'noclosed|withMain') : array();
@@ -661,10 +675,8 @@ class storyZen extends story
         $plans     = $this->loadModel('productplan')->getPairs($productID, ($branch === 'all' or empty($branch)) ? '' : $branch, 'unexpired|noclosed', true);
         $reviewers = $this->story->getProductReviewers($productID);
         $users     = $this->user->getPairs('pdfirst|noclosed|nodeleted');
-        $stories   = $this->story->getParentStoryPairs($productID);
-
-        $storyTypes = strpos($product->vision, 'or') !== false ? 'launched' : 'active';
-        $URS        = $storyType != 'story' ? array() : $this->story->getProductStoryPairs($productID, $branch, 0, $storyTypes, 'id_desc', 0, '', 'requirement');
+        $stories   = $this->story->getParentStoryPairs($productID, '', $storyType);
+        $grades    = $this->story->getGradePairs($storyType);
 
         /* 追加字段的label属性。 */
         foreach($fields as $field => $attr)
@@ -695,24 +707,26 @@ class storyZen extends story
                 $fields = array_merge($fieldPlatform, $fields);
                 break;
         }
+
+        $fields['grade']['default']      = current($grades);
         $fields['module']['options']     = $modules;
         $fields['plan']['options']       = $plans;
+        $fields['grade']['options']      = $grades;
         $fields['reviewer']['options']   = $reviewers;
         $fields['assignedTo']['options'] = $users;
         $fields['mailto']['options']     = $users;
         $fields['parent']['options']     = array_filter($stories);
-        $fields['URS']['options']        = $URS;
 
-        if($this->story->checkForceReview()) $fields['reviewer']['required'] = true;
+        if($this->story->checkForceReview($storyType)) $fields['reviewer']['required'] = true;
         if(empty($branches)) unset($fields['branch']);
-        if($this->view->hiddenPlan || $storyType == 'requirement') unset($fields['plan']);
-        if($storyType == 'requirement')
-        {
-            unset($fields['parent']);
-            unset($fields['URS']);
-        }
+        if($this->view->hiddenPlan) unset($fields['plan']);
 
-        $this->view->branchID = $branch;
+        $hiddenGrade = $this->config->edition != 'ipd';
+        if($hiddenGrade && $storyType == 'epic') $fields['parent']['hidden'] = true;
+
+        $this->view->branchID    = $branch;
+        $this->view->gradeRule   = $this->config->{$storyType}->gradeRule;
+        $this->view->hiddenGrade = $hiddenGrade;
         return $fields;
     }
 
@@ -747,11 +761,11 @@ class storyZen extends story
         $fields['verify']['default']   = $story->verify;
         $fields['status']['default']   = $story->status;
 
-        $forceReview = $this->story->checkForceReview();
+        $forceReview = $this->story->checkForceReview($story->type);
         if($forceReview) $fields['reviewer']['required'] = true;
 
         $this->view->forceReview = $forceReview;
-        $this->view->needReview  = ($this->app->user->account == $this->view->product->PO || $this->config->story->needReview == 0 || !$forceReview) && empty($reviewer);
+        $this->view->needReview  = ($this->app->user->account == $this->view->product->PO || $this->config->{$story->type}->needReview == 0 || !$forceReview) && empty($reviewer);
 
         $fields['comment'] = array('type' => 'string', 'control' => 'editor', 'required' => false, 'default' => '', 'name' => 'comment', 'title' => $this->lang->comment);
 
@@ -775,7 +789,7 @@ class storyZen extends story
         $story      = $this->view->story;
         $fields     = $this->config->story->form->review;
         $users      = $this->loadModel('user')->getPairs('nodeleted|noclosed', "$story->lastEditedBy,$story->openedBy");
-        $resultList = $this->lang->story->reviewResultList;
+        $resultList = $this->lang->{$story->type}->reviewResultList;
         if($story->status == 'reviewing')
         {
             if($story->version == 1) unset($resultList['revert']);
@@ -1000,20 +1014,11 @@ class storyZen extends story
      */
     protected function removeFormFieldsForCreate(array $fields, string $storyType = 'story'): array
     {
-        $productID = $this->view->productID;
-        $branch    = $this->view->branch;
-        $objectID  = $this->view->objectID;
+        $objectID = $this->view->objectID;
 
         /* Hidden some fields of projects without products. */
-        $hiddenProduct = $hiddenParent = $hiddenPlan = $hiddenURS = false;
-        $teamUsers     = $URS = array();
-
-        if($storyType == 'story')
-        {
-            $moduleIdList = $this->tree->getAllChildId($this->view->moduleID);
-            $URS          = $this->story->getProductStoryPairs($productID, $branch === 'all' ? 0 : $branch, $moduleIdList, 'active,launched', 'id_desc', 0, '', 'requirement');
-        }
-        $fields['URS']['options'] = $URS;
+        $hiddenProduct = $hiddenParent = $hiddenPlan = false;
+        $teamUsers     = array();
 
         if($this->app->tab === 'project' || $this->app->tab === 'execution')
         {
@@ -1028,11 +1033,9 @@ class storyZen extends story
                 $hiddenProduct = true;
 
                 if($project->model !== 'scrum' or !$project->multiple) $hiddenPlan = true;
-                if($project->model === 'kanban') $hiddenURS  = true;
             }
         }
-        if($storyType != 'story') unset($fields['region'], $fields['lane'], $fields['branches'], $fields['modules'], $fields['plans']);
-        if($storyType != 'story' || !$this->config->URAndSR || $hiddenURS) unset($fields['URS']);
+        if($storyType != 'story') unset($fields['branches'], $fields['modules'], $fields['plans']);
         if($hiddenPlan) unset($fields['plan']);
         if($hiddenProduct)
         {
@@ -1041,7 +1044,11 @@ class storyZen extends story
             $fields['assignedTo']['options'] = $teamUsers;
         }
 
+        $hiddenGrade = $this->config->edition != 'ipd';
+        if($hiddenGrade && $storyType == 'epic') $hiddenParent = true;
+
         $this->view->hiddenParent = $hiddenParent;
+        $this->view->hiddenGrade  = $hiddenGrade;
         return $fields;
     }
 
@@ -1055,10 +1062,9 @@ class storyZen extends story
      */
     protected function hiddenFormFieldsForEdit(array $fields): array
     {
-        $story   = $this->view->story;
         $product = $this->view->product;
 
-        $hiddenProduct = $hiddenParent = $hiddenPlan = $hiddenURS = false;
+        $hiddenProduct = $hiddenParent = $hiddenPlan = false;
         $teamUsers     = array();
         if($product->shadow)
         {
@@ -1074,7 +1080,6 @@ class storyZen extends story
                 $hiddenPlan = true;
                 unset($this->lang->story->stageList[''], $this->lang->story->stageList['wait'], $this->lang->story->stageList['planned']);
             }
-            if($project->model === 'kanban') $hiddenURS  = true;
         }
 
         if($hiddenProduct)
@@ -1109,7 +1114,7 @@ class storyZen extends story
             unset($fields['region']);
             unset($fields['lane']);
         }
-        if($this->app->tab == 'project' || $this->app->tab == 'execution') unset($fields['parent']);
+        if($this->app->tab == 'project' || $this->app->tab == 'execution') $fields['parent']['hidden'] = true;
 
         return $fields;
     }
@@ -1137,16 +1142,17 @@ class storyZen extends story
      * 构建创建需求数据。
      * Build story for create
      *
-     * @param  int       $executionID
-     * @param  int       $bugID
+     * @param  int          $executionID
+     * @param  int          $bugID
+     * @param  string       $storyType
      * @access protected
      * @return object|false
      */
-    protected function buildStoryForCreate(int $executionID, int $bugID): object|false
+    protected function buildStoryForCreate(int $executionID, int $bugID, string $storyType = 'story'): object|false
     {
         $fields       = $this->config->story->form->create;
         $editorFields = array_keys(array_filter(array_map(function($config){return $config['control'] == 'editor';}, $fields)));
-        foreach(explode(',', trim($this->config->story->create->requiredFields, ',')) as $field) $fields[$field]['required'] = true;
+        foreach(explode(',', trim($this->config->{$storyType}->create->requiredFields, ',')) as $field) $fields[$field]['required'] = true;
         if(!isset($_POST['plan'])) $this->config->story->create->requiredFields = str_replace(',plan,', ',', ",{$this->config->story->create->requiredFields},");
         if(!empty($_POST['modules']) && !empty($fields['module']['required']))
         {
@@ -1162,11 +1168,12 @@ class storyZen extends story
 
         $storyData = form::data($fields)
             ->setIF($this->post->assignedTo, 'assignedDate', helper::now())
-            ->setIF($this->post->plan > 0, 'stage', 'planned')
+            ->setIF($this->post->plan > 0 && $storyType == 'story', 'stage', 'planned')
             ->setIF(!in_array($this->post->source, $this->config->story->feedbackSource), 'feedbackBy', '')
             ->setIF(!in_array($this->post->source, $this->config->story->feedbackSource), 'notifyEmail', '')
             ->setIF($executionID > 0, 'stage', 'projected')
             ->setIF($bugID > 0, 'fromBug', $bugID)
+            ->setIF($storyType != 'story', 'stage', 'defining')
             ->get();
 
         if(isset($_POST['reviewer'])) $_POST['reviewer'] = array_filter($_POST['reviewer']);
@@ -1177,7 +1184,7 @@ class storyZen extends story
         }
 
         /* Need and force review, then set status to reviewing. */
-        if($storyData->status != 'draft' && $this->story->checkForceReview() && !$this->post->needNotReview) $storyData->status = 'reviewing';
+        if($storyData->status != 'draft' and $this->story->checkForceReview($storyType) and !$this->post->needNotReview) $storyData->status = 'reviewing';
 
         /* If in ipd mode, set requirement status = 'launched'. */
         if($this->config->systemMode == 'PLM' && $storyData->type == 'requirement' && $storyData->status == 'active' && $this->config->vision == 'rnd') $storyData->status = 'launched';
@@ -1200,14 +1207,14 @@ class storyZen extends story
         $oldStory  = $this->story->getByID($storyID);
 
         if(!empty($_POST['lastEditedDate']) and $oldStory->lastEditedDate != $this->post->lastEditedDate) dao::$errors[] = $this->lang->error->editedByOther;
-        if(strpos('draft,changing', $oldStory->status) !== false and $this->story->checkForceReview() and empty($_POST['reviewer'])) dao::$errors[] = $this->lang->story->notice->reviewerNotEmpty;
+        if(strpos('draft,changing', $oldStory->status) !== false and $this->story->checkForceReview($oldStory->type) and empty($_POST['reviewer'])) dao::$errors[] = $this->lang->story->notice->reviewerNotEmpty;
         if(!empty($_POST['plan'])) $storyPlan = is_array($_POST['plan']) ? array_filter($_POST['plan']) : array($_POST['plan']);
-        if(count($storyPlan) > 1)
+        if(count($storyPlan) > 1 && $oldStory->type == 'story')
         {
             $oldStoryPlan  = !empty($oldStory->plan) ? array_filter(explode(',', $oldStory->plan)) : array();
             $oldPlanDiff   = array_diff($storyPlan, $oldStoryPlan);
             $storyPlanDiff = array_diff($oldStoryPlan, $storyPlan);
-            if(!empty($oldPlanDiff) or !empty($storyPlanDiff)) dao::$errors[] = $this->lang->story->notice->changePlan;
+            if(!empty($oldPlanDiff) or !empty($storyPlanDiff)) dao::$errors['plan'] = $this->lang->story->notice->changePlan;
         }
         if(strpos(',draft,changing,', $oldStory->status) !== false)
         {
@@ -1238,13 +1245,13 @@ class storyZen extends story
             ->setDefault('estimate', $oldStory->estimate)
             ->setDefault('stage', $oldStory->stage)
             ->setDefault('stagedBy', $oldStory->stagedBy)
-            ->setDefault('childStories', $oldStory->childStories)
             ->setIF($this->post->assignedTo   != $oldStory->assignedTo, 'assignedDate', $now)
             ->setIF($this->post->closedBy     && $oldStory->closedDate == '', 'closedDate', $now)
             ->setIF($this->post->closedReason && $oldStory->closedDate == '', 'closedDate', $now)
             ->setIF($this->post->closedBy     || $this->post->closedReason != false, 'status', 'closed')
             ->setIF($this->post->closedReason && $this->post->closedBy     == false, 'closedBy', $this->app->user->account)
             ->setIF($this->post->stage == 'released', 'releasedDate', $now)
+            ->setIF(!$this->post->grade, 'grade', $oldStory->grade)
             ->setIF(!in_array($this->post->source, $this->config->story->feedbackSource), 'feedbackBy', '')
             ->setIF(!in_array($this->post->source, $this->config->story->feedbackSource), 'notifyEmail', '')
             ->setIF(!empty($_POST['plan'][0]) and $oldStory->stage == 'wait', 'stage', 'planned')
@@ -1256,6 +1263,13 @@ class storyZen extends story
         if($this->post->linkStories)      $storyData->linkStories      = implode(',', array_unique($this->post->linkStories));
         if($this->post->linkRequirements) $storyData->linkRequirements = implode(',', array_unique($this->post->linkRequirements));
 
+        if($oldStory->product != $storyData->product)
+        {
+            $storyData->root   = $storyID;
+            $storyData->parent = 0;
+            $storyData->module = 0;
+        }
+
         return $this->loadModel('file')->processImgURL($storyData, $editorFields, $this->post->uid);
     }
 
@@ -1269,11 +1283,11 @@ class storyZen extends story
      */
     protected function buildStoryForChange(int $storyID): object|false
     {
-        $oldStory = $this->story->getByID($storyID);
-        if(!empty($_POST['lastEditedDate']) and $oldStory->lastEditedDate != $this->post->lastEditedDate)       dao::$errors[] = $this->lang->error->editedByOther;
-        if(strpos($this->config->story->change->requiredFields, 'comment') !== false and !$this->post->comment) dao::$errors['comment'][] = sprintf($this->lang->error->notempty, $this->lang->comment);
-        if(strpos($this->config->story->change->requiredFields, 'spec') !== false and !$this->post->spec)       dao::$errors['spec'][]    = sprintf($this->lang->error->notempty, $this->lang->story->spec);
-        if(strpos($this->config->story->change->requiredFields, 'verify') !== false and !$this->post->spec)     dao::$errors['verify'][]  = sprintf($this->lang->error->notempty, $this->lang->story->verify);
+        $oldStory   = $this->story->getByID($storyID);
+        if(!empty($_POST['lastEditedDate']) and $oldStory->lastEditedDate != $this->post->lastEditedDate) dao::$errors[] = $this->lang->error->editedByOther;
+        if(strpos($this->config->{$oldStory->type}->change->requiredFields, 'spec') !== false and !$this->post->spec)       dao::$errors['spec'][]    = sprintf($this->lang->error->notempty, $this->lang->story->spec);
+        if(strpos($this->config->{$oldStory->type}->change->requiredFields, 'verify') !== false and !$this->post->spec)     dao::$errors['verify'][]  = sprintf($this->lang->error->notempty, $this->lang->story->verify);
+        if(strpos($this->config->{$oldStory->type}->change->requiredFields, 'comment') !== false and !$this->post->comment) dao::$errors['comment']   = sprintf($this->lang->error->notempty, $this->lang->comment);
 
         if(isset($_POST['reviewer'])) $_POST['reviewer'] = array_filter($_POST['reviewer']);
         if(!$this->post->needNotReview and empty($_POST['reviewer'])) dao::$errors['reviewer'] = $this->lang->story->errorEmptyReviewedBy;
@@ -1393,7 +1407,7 @@ class storyZen extends story
 
         if(isset($_POST['plan']) and is_array($_POST['plan'])) $story->plan   = trim(implode(',', $_POST['plan']), ',');
         if(isset($_POST['branch']) and $_POST['branch'] == 0)  $story->branch = 0;
-        if(isset($story->stage) and $oldStory->stage != $story->stage) $story->stagedBy = (strpos('tested|verified|released|closed', $story->stage) !== false) ? $this->app->user->account : '';
+        if(isset($story->stage) and $oldStory->stage != $story->stage) $story->stagedBy = (strpos('tested|verified|rejected|pending|released|closed', $story->stage) !== false) ? $this->app->user->account : '';
         if(isset($_POST['reviewer']) or isset($_POST['needNotReview'])) $this->story->doUpdateReviewer($storyID, $story);
     }
 
@@ -1407,15 +1421,21 @@ class storyZen extends story
      */
     protected function buildStoryForReview(int $storyID): object|false
     {
-        $now    = helper::now();
-        $fields = $this->config->story->form->review;
-        foreach(explode(',', trim($this->config->story->review->requiredFields, ',')) as $field)
+        $oldStory   = $this->dao->findById($storyID)->from(TABLE_STORY)->fetch();
+        $now        = helper::now();
+        $fields     = $this->config->story->form->review;
+        foreach(explode(',', trim($this->config->{$oldStory->type}->review->requiredFields, ',')) as $field)
         {
             if($field == 'comment' && !$this->post->comment)
             {
                 dao::$errors['comment'][] = sprintf($this->lang->error->notempty, $this->lang->comment);
                 return false;
             }
+            if($field == 'reviewedDate' && !$this->post->reviewedDate)
+            {
+                dao::$errors['reviewedDate'] = sprintf($this->lang->error->notempty, $this->lang->story->reviewedDate);
+                return false;
+            }
             if(isset($fields[$field])) $fields[$field]['required'] = true;
         }
         if($this->post->result == false)
@@ -1427,13 +1447,11 @@ class storyZen extends story
         $editorFields = array_keys(array_filter(array_map(function($config){return $config['control'] == 'editor';}, $fields)));
         $result       = $this->post->result;
         $closedReason = $this->post->closedReason;
-        $oldStory     = $this->dao->findById($storyID)->from(TABLE_STORY)->fetch();
         $storyData    = form::data($fields)
             ->setDefault('lastEditedBy', $this->app->user->account)
             ->setDefault('lastEditedDate', $now)
-            ->removeIF($result != 'reject', 'closedReason,duplicateStory,childStories')
+            ->removeIF($result != 'reject', 'closedReason,duplicateStory')
             ->removeIF($result == 'reject' && $closedReason != 'duplicate', 'duplicateStory')
-            ->removeIF($result == 'reject' && $closedReason != 'subdivided', 'childStories')
             ->get();
 
         if($oldStory->assignedTo != $storyData->assignedTo) $storyData->assignedDate = $now;
@@ -1457,7 +1475,7 @@ class storyZen extends story
      */
     protected function buildStoriesForBatchCreate(int $productID, string $storyType): array
     {
-        $forceReview = $this->story->checkForceReview();
+        $forceReview = $this->story->checkForceReview($storyType);
         $fields      = $this->config->story->form->batchCreate;
         $account     = $this->app->user->account;
         $now         = helper::now();
@@ -1470,13 +1488,21 @@ class storyZen extends story
             $story->type       = $storyType;
             $story->status     = (empty($story->reviewer) && !$forceReview) ? 'active' : 'reviewing';
             $story->status     = $saveDraft ? 'draft' : $story->status;
-            $story->stage      = ($this->app->tab == 'project' || $this->app->tab == 'execution') ? 'projected' : 'wait';
             $story->product    = $productID;
             $story->openedBy   = $account;
             $story->vision     = $this->config->vision;
             $story->openedDate = $now;
             $story->version    = 1;
 
+            if(in_array($this->app->tab, array('project', 'execution')))
+            {
+                $story->stage = $storyType == 'story' ? 'projected' : 'planning';
+            }
+            else
+            {
+                $story->stage = $storyType == 'story' ? 'wait' : 'defining';
+            }
+
             !empty($story->assignedTo) && $story->assignedDate = $now;
             if($this->post->uploadImage && $this->post->uploadImage[$i]) $story->uploadImage = $this->post->uploadImage[$i];
 
@@ -1501,7 +1527,6 @@ class storyZen extends story
         $now     = helper::now();
 
         $fields['duplicateStory'] = array('type' => 'int', 'required' => false, 'default' => 0);
-        $fields['childStories']   = array('type' => 'string', 'required' => false, 'default' => '', 'filter' => 'trim');
 
         $stories    = form::batchData($fields)->get();
         $oldStories = $this->story->getByList(array_keys($stories));
@@ -1515,7 +1540,7 @@ class storyZen extends story
 
             if($oldStory->assignedTo != $story->assignedTo) $story->assignedDate = $now;
             if($oldStory->parent < 0) $story->plan = '';
-            if($story->stage != $oldStory->stage) $story->stagedBy = (str_contains('|tested|verified|released|closed|', "|{$story->stage}|")) ? $account : '';
+            if($story->stage != $oldStory->stage) $story->stagedBy = (str_contains('|tested|verified|rejected|pending|released|closed|', "|{$story->stage}|")) ? $account : '';
 
             if($story->closedBy     && helper::isZeroDate($oldStory->closedDate)) $story->closedDate = $now;
             if($story->closedReason && helper::isZeroDate($oldStory->closedDate)) $story->closedDate = $now;
@@ -1633,7 +1658,7 @@ class storyZen extends story
      */
     protected function getAfterEditLocation(int $storyID, string $storyType)
     {
-        $module = 'story';
+        $module = $storyType;
         $params = "storyID=$storyID&version=0&param=0&storyType=$storyType";
         $method = 'view';
         if($this->app->tab == 'project')
@@ -1701,7 +1726,11 @@ class storyZen extends story
         if($storyID)
         {
             $locateLink = $this->session->storyList ? $this->session->storyList : $this->createLink('projectstory', 'view', "storyID=$storyID&projectID={$this->app->project}");
-            if($this->app->tab == 'product') $locateLink = $this->inlink('view', "storyID=$storyID&version=0&param=0&storyType=$storyType");
+            if($this->app->tab == 'product')
+            {
+                $story = $this->story->fetchById($storyID);
+                $locateLink = $this->createLink($story->type, 'view', "storyID=$storyID&version=0&param=0&storyType=$storyType");
+            }
             return $locateLink;
         }
 
@@ -1733,7 +1762,7 @@ class storyZen extends story
     protected function getAfterChangeLocation(int $storyID, string $storyType = 'story'): string
     {
         if($this->app->tab == 'execution') return helper::createLink('execution', 'storyView', "storyID=$storyID");
-        if($this->app->tab != 'project') return helper::createLink('story', 'view', "storyID=$storyID&version=0&param=0&storyType=$storyType");
+        if($this->app->tab != 'project') return helper::createLink($storyType, 'view', "storyID=$storyID&version=0&param=0&storyType=$storyType");
 
         if($this->app->tab == 'project')
         {
@@ -1768,7 +1797,7 @@ class storyZen extends story
             return helper::createLink('projectstory', 'view', "storyID={$storyID}&projectID={$this->session->project}");
         }
 
-        if($from != 'execution') return helper::createLink('story', 'view', "storyID={$storyID}&version=0&param=0&storyType={$storyType}");
+        if($from != 'execution') return helper::createLink($storyType, 'view', "storyID={$storyID}&version=0&param=0&storyType={$storyType}");
 
         $module = 'execution';
         $method = 'storyView';
@@ -1842,14 +1871,6 @@ class storyZen extends story
             $config->story->custom->batchCreateFields = trim(sprintf($config->story->custom->batchCreateFields, ''), ',');
         }
 
-        /* User requirement without plan/parent/URS field. */
-        if($storyType == 'requirement')
-        {
-            unset($customFields['plan']);
-            unset($customFields['parent']);
-            unset($customFields['URS']);
-        }
-
         return $customFields;
     }
 
@@ -1871,7 +1892,6 @@ class storyZen extends story
             $showFields = str_replace(array(0 => ",branch,", 1 => ",platform,"), '', ",$showFields,");
             $showFields = trim($showFields, ',');
         }
-        if($storyType == 'requirement') $showFields = str_replace(array(',plan,', ',parent,', ',URS,'), ',', ",$showFields,");
 
         return $showFields;
     }
@@ -1930,7 +1950,7 @@ class storyZen extends story
     }
 
     /**
-     * Set hidden fields for view. like: hiddenPlan,hiddenURS.
+     * Set hidden fields for view. like: hiddenPlan.
      *
      * @param  object    $product
      * @access protected
@@ -1939,7 +1959,6 @@ class storyZen extends story
     protected function setHiddenFieldsForView(object $product)
     {
         $this->view->hiddenPlan = false;
-        $this->view->hiddenURS  = false;
         if(empty($product->shadow)) return;
 
         $projectInfo = $this->dao->select('t2.model, t2.multiple')->from(TABLE_PROJECTPRODUCT)->alias('t1')
@@ -1949,12 +1968,8 @@ class storyZen extends story
             ->fetch();
 
         if($projectInfo->model == 'waterfall') $this->view->hiddenPlan = true;
-        if($projectInfo->model == 'kanban')
-        {
-            $this->view->hiddenPlan = true;
-            $this->view->hiddenURS  = true;
-        }
-        if(!$projectInfo->multiple) $this->view->hiddenPlan = true;
+        if($projectInfo->model == 'kanban')    $this->view->hiddenPlan = true;
+        if(!$projectInfo->multiple)            $this->view->hiddenPlan = true;
     }
 
     /**
diff --git a/module/task/control.php b/module/task/control.php
index a83220c311..d9a43ae455 100755
--- a/module/task/control.php
+++ b/module/task/control.php
@@ -1234,7 +1234,7 @@ class task extends control
      */
     public function ajaxGetTestStories(int $executionID, int $taskID = 0)
     {
-        $stories         = $this->story->getExecutionStoryPairs($executionID, 0, 'all', '', 'ignoreID', 'active');
+        $stories         = $this->story->getExecutionStoryPairs($executionID, 0, 'all', '', 'ignoreID', 'active', '', false);
         $testStoryIdList = $this->story->getTestStories(array_keys($stories), $executionID);
         $testStories     = array();
         foreach($stories as $testStoryID => $storyTitle)
@@ -1266,7 +1266,7 @@ class task extends control
      */
     public function ajaxGetStories(int $executionID, int $moduleID, string $zeroTaskStory = 'false')
     {
-        $stories       = $this->loadModel('story')->getExecutionStoryPairs($executionID, 0, 'all', $moduleID, 'short', 'active');
+        $stories       = $this->loadModel('story')->getExecutionStoryPairs($executionID, 0, 'all', $moduleID, 'short', 'active', '', false);
         $taskCountList = $this->task->getStoryTaskCounts(array_keys($stories), $executionID);
 
         $items = array();
diff --git a/module/task/model.php b/module/task/model.php
index cb277716cc..ad84a6da30 100755
--- a/module/task/model.php
+++ b/module/task/model.php
@@ -2228,7 +2228,7 @@ class taskModel extends model
     public function isNoStoryExecution(object $execution): bool
     {
         if(empty($execution)) return false;
-        return $execution->lifetime == 'ops' || in_array($execution->attribute, array('request', 'review'));
+        return $execution->lifetime == 'ops';
     }
 
     /**
diff --git a/module/task/ui/edit.html.php b/module/task/ui/edit.html.php
index a9109232fa..bde0820d34 100644
--- a/module/task/ui/edit.html.php
+++ b/module/task/ui/edit.html.php
@@ -138,7 +138,7 @@ detailBody
                 $task->desc && isHTML($task->desc) ? html($task->desc) : $task->desc
             )
         ),
-        $execution->lifetime != 'ops' && !in_array($execution->attribute, array('request', 'review')) ? section
+        $execution->lifetime != 'ops' ? section
         (
             set::title($lang->task->story),
             formGroup
diff --git a/module/task/zen.php b/module/task/zen.php
index 9a28b6404c..e32275a1bc 100644
--- a/module/task/zen.php
+++ b/module/task/zen.php
@@ -128,7 +128,7 @@ class taskZen extends task
      */
     protected function assignStoryForCreate(int $executionID, int $moduleID): void
     {
-        $stories         = $this->story->getExecutionStoryPairs($executionID, 0, 'all', $moduleID, 'full', 'active');
+        $stories         = $this->story->getExecutionStoryPairs($executionID, 0, 'all', $moduleID, 'full', 'active', '', false);
         $testStoryIdList = $this->loadModel('story')->getTestStories(array_keys($stories), $executionID);
         $testStories     = array();
         foreach($stories as $testStoryID => $storyTitle)
@@ -281,7 +281,7 @@ class taskZen extends task
         }
 
         $this->view->title         = $this->lang->task->edit . 'TASK' . $this->lang->hyphen . $this->view->task->name;
-        $this->view->stories       = $this->story->getExecutionStoryPairs($this->view->execution->id, 0, 'all', '', 'full', 'active');
+        $this->view->stories       = $this->story->getExecutionStoryPairs($this->view->execution->id, 0, 'all', '', 'full', 'active', '', false);
         $this->view->tasks         = $tasks;
         $this->view->taskMembers   = $taskMembers;
         $this->view->users         = $this->loadModel('user')->getPairs('nodeleted|noclosed', "{$task->openedBy},{$task->canceledBy},{$task->closedBy}");
@@ -351,7 +351,7 @@ class taskZen extends task
         $showAllModule = !empty($this->config->execution->task->allModule) ? 'allModule' : '';
         $modules       = $this->loadModel('tree')->getTaskOptionMenu($execution->id, 0, $showAllModule);
         $story         = $this->story->getByID($storyID);
-        $stories       = $this->story->getExecutionStoryPairs($execution->id, 0, 'all', $story ? $story->module : 0, 'short', 'active');
+        $stories       = $this->story->getExecutionStoryPairs($execution->id, 0, 'all', $story ? $story->module : 0, 'short', 'active', '', false);
 
         list($customFields, $checkedFields) = $this->getCustomFields($execution, 'batchCreate');
         if(isset($customFields['story'])) $customFields['preview'] = $customFields['copyStory'] = '';
diff --git a/module/testcase/control.php b/module/testcase/control.php
index 0e7c57eaa3..43264188b5 100644
--- a/module/testcase/control.php
+++ b/module/testcase/control.php
@@ -585,9 +585,11 @@ class testcase extends control
         $showSuhosinInfo = common::judgeSuhosinSetting($countInputVars);
         if($showSuhosinInfo) $this->view->suhosinInfo = extension_loaded('suhosin') ? sprintf($this->lang->suhosinInfo, $countInputVars) : sprintf($this->lang->maxVarsInfo, $countInputVars);
 
+        $stories = $this->loadModel('story')->getProductStoryPairs($productID, $branch);
+
         /* 展示变量. */
         /* Show the variables. */
-        $this->view->stories         = $this->loadModel('story')->getProductStoryPairs($productID, $branch);
+        $this->view->stories         = $this->story->addGradeLabel($stories);
         $this->view->caseIdList      = $caseIdList;
         $this->view->productID       = $productID;
         $this->view->cases           = $cases;
diff --git a/module/testcase/zen.php b/module/testcase/zen.php
index df49213e8b..e2a37500bc 100755
--- a/module/testcase/zen.php
+++ b/module/testcase/zen.php
@@ -426,11 +426,11 @@ class testcaseZen extends testcase
         if($this->app->tab != 'qa' && $this->app->tab != 'product' && $this->app->tab != 'my')
         {
             $projectID = $this->app->tab == 'project' ? $this->session->project : $this->session->execution;
-            if($projectID) $stories = $this->story->getExecutionStoryPairs($projectID, $productID, $branch, $modules);
+            if($projectID) $stories = $this->story->getExecutionStoryPairs($projectID, $productID, $branch, $modules, 'full', 'all', 'story', false);
         }
         if($storyID && !isset($stories[$storyID])) $stories = $this->story->formatStories(array($storyID => $story)) + $stories;
 
-        $this->view->stories          = $stories;
+        $this->view->stories          = $this->story->addGradeLabel($stories);
         $this->view->currentModuleID  = $currentModuleID;
         $this->view->moduleOptionMenu = $this->tree->getOptionMenu($productID, 'case', 0, $branch === 'all' || !isset($branches[$branch]) ? '0' : $branch);
         $this->view->sceneOptionMenu  = $this->testcase->getSceneMenu($productID, $moduleID, $branch === 'all' || !isset($branches[$branch]) ? '0' : $branch);
@@ -915,7 +915,7 @@ class testcaseZen extends testcase
         $storyStatus = $this->loadModel('story')->getStatusList('noclosed');
         if($this->app->tab == 'execution')
         {
-            $stories = $this->loadModel('story')->getExecutionStoryPairs($case->execution, $case->product, $case->branch, $moduleIdList);
+            $stories = $this->loadModel('story')->getExecutionStoryPairs($case->execution, $case->product, $case->branch, $moduleIdList, 'full', 'all', 'story', false);
         }
         else
         {
@@ -924,7 +924,7 @@ class testcaseZen extends testcase
 
         if(!in_array($this->app->tab, array('execution', 'project')) && empty($stories)) $stories = $this->story->getProductStoryPairs($case->product, $case->branch, 0, $storyStatus, 'id_desc', 0, 'full', 'story', false);
 
-        $this->view->stories = $stories;
+        $this->view->stories = $this->story->addGradeLabel($stories);
     }
 
     /**
@@ -1362,7 +1362,7 @@ class testcaseZen extends testcase
         $this->view->customFields    = $customFields;
         $this->view->showFields      = $showFields;
         $this->view->story           = $story;
-        $this->view->storyPairs      = $storyPairs;
+        $this->view->storyPairs      = $this->story->addGradeLabel($storyPairs);
         $this->view->sceneOptionMenu = $this->testcase->getSceneMenu($productID, $moduleID, $branch === 'all' || !isset($branches[$branch]) ? '0' : $branch);
         $this->view->currentModuleID = $moduleID;
     }
diff --git a/module/todo/config.php b/module/todo/config.php
index 5385112a93..df74c5645a 100644
--- a/module/todo/config.php
+++ b/module/todo/config.php
@@ -30,13 +30,15 @@ $config->todo->custom = new stdclass();
 $config->todo->custom->batchCreateFields = 'type,pri,desc,beginAndEnd';
 $config->todo->custom->batchEditFields   = 'pri,beginAndEnd,status';
 
-$config->todo->moduleList = array('bug', 'task', 'story', 'testtask');
+$config->todo->moduleList = array('bug', 'task', 'epic', 'requirement', 'story', 'testtask');
 
 $config->todo->getUserObjectsMethod = array();
-$config->todo->getUserObjectsMethod['bug']      = 'ajaxGetUserBugs';
-$config->todo->getUserObjectsMethod['task']     = 'ajaxGetUserTasks';
-$config->todo->getUserObjectsMethod['story']    = 'ajaxGetUserStories';
-$config->todo->getUserObjectsMethod['testtask'] = 'ajaxGetUserTestTasks';
+$config->todo->getUserObjectsMethod['bug']         = 'ajaxGetUserBugs';
+$config->todo->getUserObjectsMethod['task']        = 'ajaxGetUserTasks';
+$config->todo->getUserObjectsMethod['story']       = 'ajaxGetUserStories';
+$config->todo->getUserObjectsMethod['epic']        = 'ajaxGetUserStories';
+$config->todo->getUserObjectsMethod['requirement'] = 'ajaxGetUserStories';
+$config->todo->getUserObjectsMethod['testtask']    = 'ajaxGetUserTestTasks';
 
 $config->todo->objectList = array();
 $config->todo->objectList['bug']      = 'bugs';
diff --git a/module/todo/config/form.php b/module/todo/config/form.php
index 14e19cacbf..a530f1c05b 100644
--- a/module/todo/config/form.php
+++ b/module/todo/config/form.php
@@ -5,6 +5,8 @@ $config->todo->create->form = array();
 $config->todo->create->form['type']         = array('required' => true,  'type' => 'string');
 $config->todo->create->form['name']         = array('required' => true,  'type' => 'string', 'default'  => '');
 $config->todo->create->form['story']        = array('required' => false, 'type' => 'string', 'default'  => 0);
+$config->todo->create->form['epic']         = array('required' => false, 'type' => 'string', 'default'  => 0);
+$config->todo->create->form['requirement']  = array('required' => false, 'type' => 'string', 'default'  => 0);
 $config->todo->create->form['task']         = array('required' => false, 'type' => 'string', 'default'  => 0);
 $config->todo->create->form['bug']          = array('required' => false, 'type' => 'string', 'default'  => 0);
 $config->todo->create->form['status']       = array('required' => true,  'type' => 'string');
@@ -63,19 +65,21 @@ $config->todo->batchClose->form['todoIdList'] = array('required' => true, 'type'
 
 $config->todo->batchEdit = new stdclass();
 $config->todo->batchEdit->form = array();
-$config->todo->batchEdit->form['id']         = array('required' => true,  'type' => 'int', 'base' => true);
-$config->todo->batchEdit->form['date']       = array('required' => true,  'type' => 'date');
-$config->todo->batchEdit->form['type']       = array('required' => true,  'type' => 'string');
-$config->todo->batchEdit->form['pri']        = array('required' => true,  'type' => 'int');
-$config->todo->batchEdit->form['name']       = array('required' => false, 'type' => 'string', 'default' => '');
-$config->todo->batchEdit->form['assignedTo'] = array('required' => false, 'type' => 'string', 'default' => '');
-$config->todo->batchEdit->form['begin']      = array('required' => false, 'type' => 'string', 'default' => '');
-$config->todo->batchEdit->form['end']        = array('required' => false, 'type' => 'string', 'default' => '');
-$config->todo->batchEdit->form['status']     = array('required' => true,  'type' => 'string');
-$config->todo->batchEdit->form['story']      = array('required' => false, 'type' => 'string', 'default'  => 0);
-$config->todo->batchEdit->form['task']       = array('required' => false, 'type' => 'string', 'default'  => 0);
-$config->todo->batchEdit->form['bug']        = array('required' => false, 'type' => 'string', 'default'  => 0);
-$config->todo->batchEdit->form['testtask']   = array('required' => false, 'type' => 'string', 'default'  => 0);
+$config->todo->batchEdit->form['id']          = array('required' => true,  'type' => 'int', 'base' => true);
+$config->todo->batchEdit->form['date']        = array('required' => true,  'type' => 'date');
+$config->todo->batchEdit->form['type']        = array('required' => true,  'type' => 'string');
+$config->todo->batchEdit->form['pri']         = array('required' => true,  'type' => 'int');
+$config->todo->batchEdit->form['name']        = array('required' => false, 'type' => 'string', 'default' => '');
+$config->todo->batchEdit->form['assignedTo']  = array('required' => false, 'type' => 'string', 'default' => '');
+$config->todo->batchEdit->form['begin']       = array('required' => false, 'type' => 'string', 'default' => '');
+$config->todo->batchEdit->form['end']         = array('required' => false, 'type' => 'string', 'default' => '');
+$config->todo->batchEdit->form['status']      = array('required' => true,  'type' => 'string');
+$config->todo->batchEdit->form['story']       = array('required' => false, 'type' => 'string', 'default'  => 0);
+$config->todo->batchEdit->form['epic']        = array('required' => false, 'type' => 'string', 'default'  => 0);
+$config->todo->batchEdit->form['requirement'] = array('required' => false, 'type' => 'string', 'default'  => 0);
+$config->todo->batchEdit->form['task']        = array('required' => false, 'type' => 'string', 'default'  => 0);
+$config->todo->batchEdit->form['bug']         = array('required' => false, 'type' => 'string', 'default'  => 0);
+$config->todo->batchEdit->form['testtask']    = array('required' => false, 'type' => 'string', 'default'  => 0);
 if($config->edition != 'open') $config->todo->batchEdit->form['feedback']   = array('required' => false, 'type' => 'string', 'default'  => 0);
 if(in_array($config->edition, array('max', 'ipd')))
 {
diff --git a/module/todo/control.php b/module/todo/control.php
index bf54560978..28f4477aad 100755
--- a/module/todo/control.php
+++ b/module/todo/control.php
@@ -499,16 +499,18 @@ class todo extends control
             $todos = $this->todo->getByExportList($orderBy, (string) $this->session->todoReportCondition, (string)$checkedItem);
 
             list($todos, $fields) = $this->todoZen->exportTodoInfo((array)$todos, (string)$this->config->todo->list->exportFields, $todoLang);
-            list($users, $bugs, $stories, $tasks, $testTasks) = $this->todoZen->exportAssociated('default', (string)$user->account);
+            list($users, $bugs, $stories, $epics, $requirements, $tasks, $testTasks) = $this->todoZen->exportAssociated('default', (string)$user->account);
 
             $times = date::buildTimeList((int)$configTime->begin, (int)$configTime->end, (int)$configTime->delta);
 
             $assemble = new stdclass();
-            $assemble->users     = $users;
-            $assemble->bugs      = $bugs;
-            $assemble->stories   = $stories;
-            $assemble->tasks     = $tasks;
-            $assemble->testTasks = $testTasks;
+            $assemble->users        = $users;
+            $assemble->bugs         = $bugs;
+            $assemble->stories      = $stories;
+            $assemble->epics        = $epics;
+            $assemble->requirements = $requirements;
+            $assemble->tasks        = $tasks;
+            $assemble->testTasks    = $testTasks;
             if(in_array($this->config->edition, array('max', 'ipd')))
             {
                 $iroData = $this->todoZen->exportAssociated((string)$this->config->edition, (string)$user->account);
diff --git a/module/todo/lang/de.php b/module/todo/lang/de.php
index 17c26afb21..37459f2019 100644
--- a/module/todo/lang/de.php
+++ b/module/todo/lang/de.php
@@ -116,12 +116,14 @@ $lang->todo->priList[2] = 'Hoch';
 $lang->todo->priList[3] = 'Normal';
 $lang->todo->priList[4] = 'Niedrig';
 
-$lang->todo->typeList['custom']   = 'Eigene';
-$lang->todo->typeList['cycle']    = 'Wiederkehrend';
-$lang->todo->typeList['bug']      = 'Bug';
-$lang->todo->typeList['task']     = 'Aufgabe';
-$lang->todo->typeList['story']    = 'Story';
-$lang->todo->typeList['testtask'] = 'Testtask';
+$lang->todo->typeList['custom']      = 'Eigene';
+$lang->todo->typeList['cycle']       = 'Wiederkehrend';
+$lang->todo->typeList['bug']         = 'Bug';
+$lang->todo->typeList['task']        = 'Aufgabe';
+$lang->todo->typeList['story']       = 'Story';
+if($config->enableER) $lang->todo->typeList['epic']        = $lang->ERCommon;
+if($config->URAndSR)  $lang->todo->typeList['requirement'] = $lang->URCommon;
+$lang->todo->typeList['testtask']    = 'Testtask';
 
 $lang->todo->fromList['bug']   = 'Related Bug';
 $lang->todo->fromList['task']  = 'Related Task';
diff --git a/module/todo/lang/en.php b/module/todo/lang/en.php
index ae07cef355..b8623fa6b1 100644
--- a/module/todo/lang/en.php
+++ b/module/todo/lang/en.php
@@ -116,12 +116,14 @@ $lang->todo->priList[2] = 'Important';
 $lang->todo->priList[3] = 'Normal';
 $lang->todo->priList[4] = 'Low';
 
-$lang->todo->typeList['custom']   = 'Custom';
-$lang->todo->typeList['cycle']    = 'Recur';
-$lang->todo->typeList['bug']      = 'Bug';
-$lang->todo->typeList['task']     = 'Task';
-$lang->todo->typeList['story']    = 'Story';
-$lang->todo->typeList['testtask'] = 'Testtask';
+$lang->todo->typeList['custom']      = 'Custom';
+$lang->todo->typeList['cycle']       = 'Recur';
+$lang->todo->typeList['bug']         = 'Bug';
+$lang->todo->typeList['task']        = 'Task';
+$lang->todo->typeList['story']       = 'Story';
+if($config->enableER) $lang->todo->typeList['epic']        = $lang->ERCommon;
+if($config->URAndSR)  $lang->todo->typeList['requirement'] = $lang->URCommon;
+$lang->todo->typeList['testtask']    = 'Testtask';
 
 $lang->todo->fromList['bug']   = 'Related Bug';
 $lang->todo->fromList['task']  = 'Related Task';
diff --git a/module/todo/lang/fr.php b/module/todo/lang/fr.php
index ee2a0e387c..edd0abb6a0 100644
--- a/module/todo/lang/fr.php
+++ b/module/todo/lang/fr.php
@@ -116,12 +116,14 @@ $lang->todo->priList[2] = 'Importante';
 $lang->todo->priList[3] = 'Normale';
 $lang->todo->priList[4] = 'Faible';
 
-$lang->todo->typeList['custom']   = 'Person.';
-$lang->todo->typeList['cycle']    = 'Récur';
-$lang->todo->typeList['bug']      = 'Bug';
-$lang->todo->typeList['task']     = 'Tâche';
-$lang->todo->typeList['story']    = 'Story';
-$lang->todo->typeList['testtask'] = 'Testtask';
+$lang->todo->typeList['custom']      = 'Person.';
+$lang->todo->typeList['cycle']       = 'Récur';
+$lang->todo->typeList['bug']         = 'Bug';
+$lang->todo->typeList['task']        = 'Tâche';
+$lang->todo->typeList['story']       = 'Story';
+if($config->enableER) $lang->todo->typeList['epic']        = $lang->ERCommon;
+if($config->URAndSR)  $lang->todo->typeList['requirement'] = $lang->URCommon;
+$lang->todo->typeList['testtask']    = 'Testtask';
 
 $lang->todo->fromList['bug']   = 'Related Bug';
 $lang->todo->fromList['task']  = 'Related Task';
diff --git a/module/todo/lang/zh-cn.php b/module/todo/lang/zh-cn.php
index 86477168ae..3850af5cd9 100644
--- a/module/todo/lang/zh-cn.php
+++ b/module/todo/lang/zh-cn.php
@@ -116,12 +116,15 @@ $lang->todo->priList[2] = 2;
 $lang->todo->priList[3] = 3;
 $lang->todo->priList[4] = 4;
 
-$lang->todo->typeList['custom']   = '自定义';
-$lang->todo->typeList['cycle']    = '周期';
-$lang->todo->typeList['bug']      = 'Bug';
-$lang->todo->typeList['task']     = '任务';
-$lang->todo->typeList['story']    = $lang->SRCommon;
-$lang->todo->typeList['testtask'] = '测试单';
+global $config;
+$lang->todo->typeList['custom']      = '自定义';
+$lang->todo->typeList['cycle']       = '周期';
+$lang->todo->typeList['bug']         = 'Bug';
+$lang->todo->typeList['task']        = '任务';
+$lang->todo->typeList['story']       = $lang->SRCommon;
+if($config->enableER) $lang->todo->typeList['epic']        = $lang->ERCommon;
+if($config->URAndSR)  $lang->todo->typeList['requirement'] = $lang->URCommon;
+$lang->todo->typeList['testtask']    = '测试单';
 
 $lang->todo->fromList['bug']   = '相关Bug';
 $lang->todo->fromList['task']  = '相关任务';
diff --git a/module/todo/tao.php b/module/todo/tao.php
index b09b0a07f4..b968d812b0 100644
--- a/module/todo/tao.php
+++ b/module/todo/tao.php
@@ -387,7 +387,7 @@ class todoTao extends todoModel
     {
         $savedTodoName = $todo->name;
 
-        if($todo->type == 'story')
+        if(in_array($todo->type, array('story', 'epic', 'requirement')))
         {
             $story        = $this->dao->findByID($todo->objectID)->from(TABLE_STORY)->fetch();
             $todo->object = $story;
diff --git a/module/todo/zen.php b/module/todo/zen.php
index dc1b688b77..90db826d93 100755
--- a/module/todo/zen.php
+++ b/module/todo/zen.php
@@ -174,7 +174,7 @@ class todoZen extends todo
         if($todo->type != 'custom' && !empty($todo->objectID))
         {
             $type   = $todo->type;
-            $object = $this->loadModel($type)->getByID($todo->objectID);
+            $object = $this->loadModel($type)->fetchByID($todo->objectID);
             if(isset($object->name))  $todo->name = $object->name;
             if(isset($object->title)) $todo->name = $object->title;
         }
@@ -311,7 +311,7 @@ class todoZen extends todo
         if(in_array($todo->type, $this->config->todo->moduleList))
         {
             $type   = $todo->type;
-            $object = $this->loadModel($type)->getByID((int)$objectID);
+            $object = $this->loadModel($type)->fetchByID((int)$objectID);
             if(isset($object->name))  $todo->name = $object->name;
             if(isset($object->title)) $todo->name = $object->title;
         }
@@ -381,11 +381,13 @@ class todoZen extends todo
         list($editedTodos, $objectIdList) = $this->getBatchEditInitTodos($todoIdList, $type, $account, $status);
         $editedTodos = array_map(function($item) { $item->begin = str_replace(':', '', $item->begin); $item->end = str_replace(':', '', $item->end); return $item;}, $editedTodos);
 
-        $bugs      = $this->loadModel('bug')->getUserBugPairs($account, true, 0, array(), array(), isset($objectIdList['bug']) ? $objectIdList['bug'] : array());
-        $tasks     = $this->loadModel('task')->getUserTaskPairs($account, 'wait,doing', array(), isset($objectIdList['task']) ? $objectIdList['task'] : array());
-        $stories   = $this->loadModel('story')->getUserStoryPairs($account, 10, 'story', '', isset($objectIdList['story']) ? $objectIdList['story'] : array());
-        $users     = $this->loadModel('user')->getPairs('noclosed|nodeleted|noempty');
-        $testtasks = $this->loadModel('testtask')->getUserTestTaskPairs($account);
+        $bugs         = $this->loadModel('bug')->getUserBugPairs($account, true, 0, array(), array(), isset($objectIdList['bug']) ? $objectIdList['bug'] : array());
+        $tasks        = $this->loadModel('task')->getUserTaskPairs($account, 'wait,doing', array(), isset($objectIdList['task']) ? $objectIdList['task'] : array());
+        $stories      = $this->loadModel('story')->getUserStoryPairs($account, 10, 'story', '', isset($objectIdList['story']) ? $objectIdList['story'] : array());
+        $epics        = $this->loadModel('story')->getUserStoryPairs($account, 10, 'epic', '', isset($objectIdList['epic']) ? $objectIdList['epic'] : array());
+        $requirements = $this->loadModel('story')->getUserStoryPairs($account, 10, 'requirement', '', isset($objectIdList['requirement']) ? $objectIdList['requirement'] : array());
+        $users        = $this->loadModel('user')->getPairs('noclosed|nodeleted|noempty');
+        $testtasks    = $this->loadModel('testtask')->getUserTestTaskPairs($account);
         if($this->config->edition != 'open') $feedbacks = $this->loadModel('feedback')->getUserFeedbackPairs($account, '', isset($objectIdList['feedback']) ? $objectIdList['feedback'] : '');
         if(in_array($this->config->edition, array('max', 'ipd')))
         {
@@ -401,16 +403,18 @@ class todoZen extends todo
         $showSuhosinInfo = common::judgeSuhosinSetting($countInputVars);
 
         if($showSuhosinInfo) $this->view->suhosinInfo = extension_loaded('suhosin') ? sprintf($this->lang->suhosinInfo, $countInputVars) : sprintf($this->lang->maxVarsInfo, $countInputVars);
-        $this->view->bugs        = $bugs;
-        $this->view->tasks       = $tasks;
-        $this->view->stories     = $stories;
-        $this->view->reviews     = $reviews;
-        $this->view->testtasks   = $testtasks;
-        $this->view->editedTodos = $editedTodos;
-        $this->view->users       = $users;
-        $this->view->type        = $type;
-        $this->view->userID      = $userID;
-        $this->view->status      = $status;
+        $this->view->bugs         = $bugs;
+        $this->view->tasks        = $tasks;
+        $this->view->stories      = $stories;
+        $this->view->epics        = $epics;
+        $this->view->requirements = $requirements;
+        $this->view->reviews      = $reviews;
+        $this->view->testtasks    = $testtasks;
+        $this->view->editedTodos  = $editedTodos;
+        $this->view->users        = $users;
+        $this->view->type         = $type;
+        $this->view->userID       = $userID;
+        $this->view->status       = $status;
         if($this->config->edition != 'open') $this->view->feedbacks = $feedbacks;
         if(in_array($this->config->edition, array('max', 'ipd')))
         {
@@ -503,7 +507,7 @@ class todoZen extends todo
             {
                 dao::$errors["name[{$todoID}]"] = sprintf($this->lang->error->notempty, $this->lang->todo->name);
             }
-            unset($todo->story, $todo->task, $todo->bug, $todo->testtask, $todo->feedback, $todo->issue, $todo->risk, $todo->opportunity, $todo->review);
+            unset($todo->story, $todo->epic, $todo->requirement, $todo->task, $todo->bug, $todo->testtask, $todo->feedback, $todo->issue, $todo->risk, $todo->opportunity, $todo->review);
 
             $todo->begin = empty($todo->begin) || $this->post->switchTime ? 2400 : $todo->begin;
             $todo->end   = empty($todo->end) || $this->post->switchTime   ? 2400 : $todo->end;
@@ -820,6 +824,8 @@ class todoZen extends todo
                 $this->loadModel('user')->getPairs('noletter'),
                 $this->loadModel('bug')->getUserBugPairs($account),
                 $this->loadModel('story')->getUserStoryPairs($account, 100, 'story'),
+                $this->loadModel('story')->getUserStoryPairs($account, 100, 'epic'),
+                $this->loadModel('story')->getUserStoryPairs($account, 100, 'requirement'),
                 $this->loadModel('task')->getUserTaskPairs($account),
                 $this->loadModel('testtask')->getUserTesttaskPairs($account),
             );
@@ -853,10 +859,12 @@ class todoZen extends todo
             $type = $todo->type;
             if(isset($assemble->users[$todo->account])) $todo->account = $assemble->users[$todo->account];
 
-            if($type == 'bug')      $todo->name = isset($assemble->bugs[$todo->objectID])      ? $assemble->bugs[$todo->objectID]      . "(#$todo->objectID)" : '';
-            if($type == 'task')     $todo->name = isset($assemble->tasks[$todo->objectID])     ? $assemble->tasks[$todo->objectID]     . "(#$todo->objectID)" : '';
-            if($type == 'story')    $todo->name = isset($assemble->stories[$todo->objectID])   ? $assemble->stories[$todo->objectID]   . "(#$todo->objectID)" : '';
-            if($type == 'testtask') $todo->name = isset($assemble->testTasks[$todo->objectID]) ? $assemble->testTasks[$todo->objectID] . "(#$todo->objectID)" : '';
+            if($type == 'bug')         $todo->name = isset($assemble->bugs[$todo->objectID])         ? $assemble->bugs[$todo->objectID]         . "(#$todo->objectID)" : '';
+            if($type == 'task')        $todo->name = isset($assemble->tasks[$todo->objectID])        ? $assemble->tasks[$todo->objectID]        . "(#$todo->objectID)" : '';
+            if($type == 'story')       $todo->name = isset($assemble->stories[$todo->objectID])      ? $assemble->stories[$todo->objectID]      . "(#$todo->objectID)" : '';
+            if($type == 'epic')        $todo->name = isset($assemble->epics[$todo->objectID])        ? $assemble->epics[$todo->objectID]        . "(#$todo->objectID)" : '';
+            if($type == 'requirement') $todo->name = isset($assemble->requirements[$todo->objectID]) ? $assemble->requirements[$todo->objectID] . "(#$todo->objectID)" : '';
+            if($type == 'testtask')    $todo->name = isset($assemble->testTasks[$todo->objectID])    ? $assemble->testTasks[$todo->objectID]    . "(#$todo->objectID)" : '';
 
             if(in_array($this->config->edition, array('max', 'ipd')))
             {
diff --git a/module/transfer/control.php b/module/transfer/control.php
index 5381b2e003..fb0c45ec0f 100755
--- a/module/transfer/control.php
+++ b/module/transfer/control.php
@@ -124,6 +124,30 @@ class transfer extends control
             return $this->send(array('result' => 'success', 'load' => $locate, 'closeModal' => true));
         }
 
+        /* 项目和执行中的需求导入时应选择需求类型. */
+        if($module == 'story')
+        {
+            $this->app->loadLang('story');
+
+            $storyType = '';
+            if($this->app->tab == 'project')
+            {
+                $project   = $this->loadModel('project')->fetchByID($this->session->project);
+                $storyType = $project->storyType;
+            }
+
+            if($storyType)
+            {
+                foreach($this->lang->story->typeList as $key => $value)
+                {
+                    if(strpos(",$storyType,", ",$key,") === false) unset($this->lang->story->typeList[$key]);
+                }
+            }
+
+            $this->view->isProjectStory = $this->app->tab == 'project';
+            $this->view->typeList       = $this->lang->story->typeList;
+        }
+
         $this->view->title = $this->lang->transfer->importCase;
         $this->display();
     }
diff --git a/module/transfer/model.php b/module/transfer/model.php
index 44d88a2ed9..b150c22f3e 100644
--- a/module/transfer/model.php
+++ b/module/transfer/model.php
@@ -69,6 +69,8 @@ class transferModel extends model
     {
         if($module)
         {
+            if(in_array($module, array('epic', 'requirement'))) $module = 'story';
+
             $this->loadModel($module);
             $this->moduleConfig     = $this->config->$module;
             $this->moduleLang       = $this->lang->$module;
@@ -620,10 +622,6 @@ class transferModel extends model
         /* Deal children datas and multiple tasks. */
         if($moduleDatas) $moduleDatas = $this->transferTao->updateChildDatas($moduleDatas);
 
-        /* 设置导出用户需求相关相关研发需求数据。*/
-        /* Deal linkStories datas. */
-        if($moduleDatas and isset($fieldList['linkStories'])) $moduleDatas = $this->transferTao->processLinkStories($moduleDatas);
-
         return $moduleDatas;
     }
 
diff --git a/module/transfer/tao.php b/module/transfer/tao.php
index 3def902995..d923e7308c 100644
--- a/module/transfer/tao.php
+++ b/module/transfer/tao.php
@@ -243,7 +243,6 @@ class transferTao extends transferModel
                 /* 根据name或title获取父数据。*/
                 /* Get parent data by name or title. */
                 if(!empty($data->name)) $data->name = '>' . $data->name;
-                elseif(!empty($data->title)) $data->title = '>' . $data->title;
                 $children[$data->parent][$id] = $data;
                 unset($datas[$id]);
             }
@@ -264,27 +263,4 @@ class transferTao extends transferModel
 
         return $datas;
     }
-
-    /**
-     * 设置导出用户需求相关相关研发需求数据。
-     * Process LinkStories datas.
-     *
-     * @param  array $stories
-     * @access protected
-     * @return array
-     */
-    protected function processLinkStories($stories)
-    {
-        $storyDatas = end($stories);
-        $lastType   = $storyDatas->type;
-        if(empty($storyDatas->type) || $storyDatas->type == 'story') return $stories;
-
-        /* 获取产品ID列表。*/
-        /* Get product id list. */
-        $productIDList = array();
-        foreach($stories as $story) $productIDList[] = $story->product;
-        $productIDList = array_unique($productIDList);
-
-        return $this->loadModel('story')->mergePlanTitleAndChildren($productIDList, $stories, $lastType);
-    }
 }
diff --git a/module/transfer/ui/exporttemplate.html.php b/module/transfer/ui/exporttemplate.html.php
index 46101fb88a..6c511f1fa6 100644
--- a/module/transfer/ui/exporttemplate.html.php
+++ b/module/transfer/ui/exporttemplate.html.php
@@ -24,6 +24,15 @@ form
         set::type('number'),
         set::value(10)
     ),
+    !empty($isProjectStory) ? formGroup
+    (
+        set::label($lang->story->type),
+        set::name('storyType'),
+        set::required(true),
+        set::control('picker'),
+        set::value('story'),
+        set::items($typeList)
+    ) : null,
     formGroup
     (
         set::label($lang->file->extension),
diff --git a/module/transfer/ui/import.html.php b/module/transfer/ui/import.html.php
index bd3f1b5c56..cbf556678e 100644
--- a/module/transfer/ui/import.html.php
+++ b/module/transfer/ui/import.html.php
@@ -13,6 +13,14 @@ namespace zin;
 formPanel
 (
     set::title($title),
+    !empty($isProjectStory) ? formGroup
+    (
+        set::name('storyType'),
+        set::required(true),
+        set::control('picker'),
+        set::value('story'),
+        set::items($typeList)
+    ) : null,
     input(set::type('file'), set::name('file')),
     span(setClass('label secondary'), $lang->transfer->importNotice)
 );
diff --git a/module/upgrade/config.php b/module/upgrade/config.php
index aeac8a2c66..2d35121f0a 100644
--- a/module/upgrade/config.php
+++ b/module/upgrade/config.php
@@ -1225,6 +1225,7 @@ $config->delete['20_0'][] = 'extension/ipd/attend/ext/control/stat.php';
 $config->delete['20_0'][] = 'extension/biz/feedback/ext/ui/admin.excel.html.hook.php';
 $config->delete['20_0'][] = 'extension/max/feedback/ext/ui/admin.excel.html.hook.php';
 $config->delete['20_0'][] = 'extension/ipd/feedback/ext/ui/admin.excel.html.hook.php';
+$config->delete['20_0'][] = 'module/story/ui/linkstories.html.php';
 $config->delete['20_0'][] = 'extension/or/product/ext/control/batchedit.php';
 
 $config->delete['20_1'][] = 'module/gitfox';
@@ -1254,8 +1255,7 @@ $config->delete['20_1'][] = 'execution/ipd/bug/ext/ui/view.effort.html.hook.php'
 $config->delete['20_1'][] = 'execution/ipd/story/ext/ui/view.effort.html.hook.php';
 $config->delete['20_1'][] = 'execution/ipd/testcase/ext/ui/view.effort.html.hook.php';
 
-$config->upgrade->openModules = array('action', 'admin', 'ai', 'bi', 'aiapp', 'api', 'automation', 'backup', 'block', 'branch', 'budget', 'bug', 'build', 'caselib', 'chart', 'ci', 'client', 'common', 'company', 'compile', 'convert', 'cron', 'custom', 'datatable', 'dataview', 'dept', 'design', 'dev', 'dimension', 'doc', 'durationestimation', 'entry', 'execution', 'extension', 'file', 'git', 'gitlab', 'group', 'holiday', 'im', 'index', 'index.html', 'install', 'issue', 'jenkins', 'job', 'kanban', 'license', 'mail', 'message', 'metric', 'misc', 'mr', 'my', 'personnel', 'pipeline', 'product', 'productplan', 'productset', 'program', 'programplan', 'project', 'projectbuild', 'projectplan', 'projectrelease', 'projectstory', 'pivot', 'qa', 'release', 'repo', 'report', 'risk', 'score', 'screen', 'search', 'setting', 'sonarqube', 'sso', 'stage', 'stakeholder', 'story', 'subject', 'svn', 'task', 'testcase', 'testreport', 'testsuite', 'testtask', 'todo', 'tree', 'tutorial', 'upgrade', 'user', 'webhook', 'weekly', 'workestimation', 'gitea', 'gogs', 'transfer', 'zahost', 'zanode', 'editor', 'charter', 'roadmap', 'account', 'cne', 'host', 'instance', 'ops', 'serverroom', 'space', 'store', 'system', 'solution', 'demand');
-
+$config->upgrade->openModules  = array('action', 'admin', 'ai', 'bi', 'aiapp', 'api', 'automation', 'backup', 'block', 'branch', 'budget', 'bug', 'build', 'caselib', 'chart', 'ci', 'client', 'common', 'company', 'compile', 'convert', 'cron', 'custom', 'datatable', 'dataview', 'dept', 'design', 'dev', 'dimension', 'doc', 'durationestimation', 'entry', 'execution', 'extension', 'file', 'git', 'gitlab', 'group', 'holiday', 'im', 'index', 'index.html', 'install', 'issue', 'jenkins', 'job', 'kanban', 'license', 'mail', 'message', 'metric', 'misc', 'mr', 'my', 'personnel', 'pipeline', 'product', 'productplan', 'productset', 'program', 'programplan', 'project', 'projectbuild', 'projectplan', 'projectrelease', 'projectstory', 'pivot', 'qa', 'release', 'repo', 'report', 'risk', 'score', 'screen', 'search', 'setting', 'sonarqube', 'sso', 'stage', 'stakeholder', 'story', 'subject', 'svn', 'task', 'testcase', 'testreport', 'testsuite', 'testtask', 'todo', 'tree', 'tutorial', 'upgrade', 'user', 'webhook', 'weekly', 'workestimation', 'gitea', 'gogs', 'transfer', 'zahost', 'zanode', 'editor', 'charter', 'roadmap', 'account', 'cne', 'host', 'instance', 'ops', 'serverroom', 'space', 'store', 'system', 'solution', 'demand', 'gitfox', 'epic', 'requirement');
 $config->upgrade->unsetModules = array('design', 'program', 'programplan', 'projectbuild', 'projectrelease', 'stage', 'stakeholder', 'product', 'branch', 'productplan', 'release', 'build', 'qa', 'bug', 'testcase', 'testtask', 'testreport', 'testsuite', 'caselib', 'automation', 'repo', 'ci', 'compile', 'jenkins', 'job', 'svn', 'gitlab', 'sonarqube', 'mr', 'git', 'report', 'sqlbuilder', 'feedback', 'faq', 'attend', 'holiday', 'leave', 'makeup', 'overtime', 'lieu', 'ops', 'host', 'serverroom', 'account', 'domain', 'service', 'deploy', 'conference', 'traincourse', 'pssp', 'baseline', 'classify', 'cm', 'cmcl', 'auditcl', 'reviewcl', 'process', 'activity', 'zoutput', 'auditplan', 'nc', 'subject', 'weekly', 'workestimation', 'issue', 'durationestimation', 'risk', 'opportunity', 'trainplan', 'gapanalysis', 'researchplan', 'researchreport', 'meeting', 'meetingroom', 'budget', 'reviewissue', 'reviewsetting', 'review', 'milestone', 'measurement', 'measrecord', 'assetlib', 'setting', 'im', 'client', 'ldap', 'dev', 'api', 'gitea', 'gogs', 'zanode', 'zahost');
 
 global $lang;
diff --git a/module/upgrade/config/upgradeflow.php b/module/upgrade/config/upgradeflow.php
index 563691e90e..b423bf412d 100644
--- a/module/upgrade/config/upgradeflow.php
+++ b/module/upgrade/config/upgradeflow.php
@@ -98,7 +98,7 @@ $config->upgrade->execFlow['20_0_beta1']  = array('functions' => 'hideOA,updateM
 $config->upgrade->execFlow['20_0_beta2']  = array('functions' => 'updateWorkflowFieldDefaultValue,update1811,updateZeroDateToNull,updateProgramplanCustom');
 $config->upgrade->execFlow['20_0']        = array('functions' => 'openCacheByAPCu');
 $config->upgrade->execFlow['20_1_0']      = array('functions' => 'completeClassifyLang');
-$config->upgrade->execFlow['20_1_1']      = array('functions' => 'syncActivityAndOutput');
+$config->upgrade->execFlow['20_1_1']      = array('functions' => 'syncActivityAndOutput,changeCustomStoryStage,processStoryRelation,processLinkStories,addERName');
 
 if(!empty($config->isINT))
 {
@@ -158,6 +158,7 @@ $config->upgrade->execFlow['biz5_2']       = array('functions' => 'addDefaultKan
 $config->upgrade->execFlow['biz5_3_1']     = array('functions' => 'processFeedbackField,addFileFields,addReportActions');
 $config->upgrade->execFlow['biz6_4']       = array('functions' => 'importLiteModules');
 $config->upgrade->execFlow['biz8_12']      = array('functions' => 'AddFeedbackDatasource');
+$config->upgrade->execFlow['biz10_0_0']    = array('functions' => 'importERURModules');
 
 if(!empty($config->isINT))
 {
diff --git a/module/upgrade/lang/de.php b/module/upgrade/lang/de.php
index 6185ab3c0f..b2cd3599a6 100644
--- a/module/upgrade/lang/de.php
+++ b/module/upgrade/lang/de.php
@@ -164,3 +164,22 @@ $lang->upgrade->remarkDesc = 'You can also switch the mode in the Admin-System-M
 $lang->upgrade->upgradingTip = 'The system is being upgraded, please wait patiently...';
 
 $lang->upgrade->addTraincoursePrivTips = "In order to facilitate everyone's learning of project management-related knowledge, we have made the courses and practical repositories of the academy accessible to all permission groups by default. This ensures that everyone can easily access the resources. However, if you do not require this feature, you can disable it in the backend feature switch.";
+
+$lang->upgrade->storyStageList['']           = '';
+$lang->upgrade->storyStageList['defining']   = 'Defining';
+$lang->upgrade->storyStageList['wait']       = 'Waiting';
+$lang->upgrade->storyStageList['planning']   = 'Planning';
+$lang->upgrade->storyStageList['planned']    = 'Planned';
+$lang->upgrade->storyStageList['projected']  = 'Projected';
+$lang->upgrade->storyStageList['designing']  = 'Designing';
+$lang->upgrade->storyStageList['designed']   = 'Designed';
+$lang->upgrade->storyStageList['developing'] = 'Developing';
+$lang->upgrade->storyStageList['developed']  = 'Developed';
+$lang->upgrade->storyStageList['testing']    = 'Testing';
+$lang->upgrade->storyStageList['tested']     = 'Tested';
+$lang->upgrade->storyStageList['verified']   = 'Accepted';
+$lang->upgrade->storyStageList['rejected']   = 'Verify Rejected';
+$lang->upgrade->storyStageList['delivering'] = 'Delivering';
+$lang->upgrade->storyStageList['pending']    = 'Release Pending';
+$lang->upgrade->storyStageList['released']   = 'Released';
+$lang->upgrade->storyStageList['closed']     = 'Closed';
diff --git a/module/upgrade/lang/en.php b/module/upgrade/lang/en.php
index 7dd46bbc11..cb9a7b4e50 100644
--- a/module/upgrade/lang/en.php
+++ b/module/upgrade/lang/en.php
@@ -164,3 +164,22 @@ $lang->upgrade->remarkDesc = 'You can also switch the mode in the Admin-System-M
 $lang->upgrade->upgradingTip = 'The system is being upgraded, please wait patiently...';
 
 $lang->upgrade->addTraincoursePrivTips = "In order to facilitate everyone's learning of project management-related knowledge, we have made the courses and practical repositories of the academy accessible to all permission groups by default. This ensures that everyone can easily access the resources. However, if you do not require this feature, you can disable it in the backend feature switch.";
+
+$lang->upgrade->storyStageList['']           = '';
+$lang->upgrade->storyStageList['defining']   = 'Defining';
+$lang->upgrade->storyStageList['wait']       = 'Waiting';
+$lang->upgrade->storyStageList['planning']   = 'Planning';
+$lang->upgrade->storyStageList['planned']    = 'Planned';
+$lang->upgrade->storyStageList['projected']  = 'Projected';
+$lang->upgrade->storyStageList['designing']  = 'Designing';
+$lang->upgrade->storyStageList['designed']   = 'Designed';
+$lang->upgrade->storyStageList['developing'] = 'Developing';
+$lang->upgrade->storyStageList['developed']  = 'Developed';
+$lang->upgrade->storyStageList['testing']    = 'Testing';
+$lang->upgrade->storyStageList['tested']     = 'Tested';
+$lang->upgrade->storyStageList['verified']   = 'Accepted';
+$lang->upgrade->storyStageList['rejected']   = 'Verify Rejected';
+$lang->upgrade->storyStageList['delivering'] = 'Delivering';
+$lang->upgrade->storyStageList['pending']    = 'Release Pending';
+$lang->upgrade->storyStageList['released']   = 'Released';
+$lang->upgrade->storyStageList['closed']     = 'Closed';
diff --git a/module/upgrade/lang/fr.php b/module/upgrade/lang/fr.php
index 487d91e730..219b26d731 100644
--- a/module/upgrade/lang/fr.php
+++ b/module/upgrade/lang/fr.php
@@ -164,3 +164,22 @@ $lang->upgrade->remarkDesc = 'You can also switch the mode in the Admin-System-M
 $lang->upgrade->upgradingTip = 'The system is being upgraded, please wait patiently...';
 
 $lang->upgrade->addTraincoursePrivTips = "In order to facilitate everyone's learning of project management-related knowledge, we have made the courses and practical repositories of the academy accessible to all permission groups by default. This ensures that everyone can easily access the resources. However, if you do not require this feature, you can disable it in the backend feature switch.";
+
+$lang->upgrade->storyStageList['']           = '';
+$lang->upgrade->storyStageList['defining']   = 'Defining';
+$lang->upgrade->storyStageList['wait']       = 'Waiting';
+$lang->upgrade->storyStageList['planning']   = 'Planning';
+$lang->upgrade->storyStageList['planned']    = 'Planned';
+$lang->upgrade->storyStageList['projected']  = 'Projected';
+$lang->upgrade->storyStageList['designing']  = 'Designing';
+$lang->upgrade->storyStageList['designed']   = 'Designed';
+$lang->upgrade->storyStageList['developing'] = 'Developing';
+$lang->upgrade->storyStageList['developed']  = 'Developed';
+$lang->upgrade->storyStageList['testing']    = 'Testing';
+$lang->upgrade->storyStageList['tested']     = 'Tested';
+$lang->upgrade->storyStageList['verified']   = 'Accepted';
+$lang->upgrade->storyStageList['rejected']   = 'Verify Rejected';
+$lang->upgrade->storyStageList['delivering'] = 'Delivering';
+$lang->upgrade->storyStageList['pending']    = 'Release Pending';
+$lang->upgrade->storyStageList['released']   = 'Released';
+$lang->upgrade->storyStageList['closed']     = 'Closed';
diff --git a/module/upgrade/lang/zh-cn.php b/module/upgrade/lang/zh-cn.php
index 29dd932f3b..f5c2928959 100644
--- a/module/upgrade/lang/zh-cn.php
+++ b/module/upgrade/lang/zh-cn.php
@@ -164,3 +164,22 @@ $lang->upgrade->remarkDesc = '后续您还可以在禅道的后台-系统设置-
 $lang->upgrade->upgradingTip = '系统正在升级中，请耐心等待...';
 
 $lang->upgrade->addTraincoursePrivTips = '为了帮助大家更好的学习项目管理相关知识，默认给所有权限分组分配了学堂的课程和实践库权限，便于大家都能访问。如果您不需要该功能，可以到后台功能开关中关闭该功能。';
+
+$lang->upgrade->storyStageList['']           = '';
+$lang->upgrade->storyStageList['defining']   = '定义中';
+$lang->upgrade->storyStageList['wait']       = '未开始';
+$lang->upgrade->storyStageList['planning']   = '规划中';
+$lang->upgrade->storyStageList['planned']    = "已计划";
+$lang->upgrade->storyStageList['projected']  = '已立项';
+$lang->upgrade->storyStageList['designing']  = '设计中';
+$lang->upgrade->storyStageList['designed']   = '设计完毕';
+$lang->upgrade->storyStageList['developing'] = '研发中';
+$lang->upgrade->storyStageList['developed']  = '研发完毕';
+$lang->upgrade->storyStageList['testing']    = '测试中';
+$lang->upgrade->storyStageList['tested']     = '测试完毕';
+$lang->upgrade->storyStageList['verified']   = '已验收';
+$lang->upgrade->storyStageList['rejected']   = '验收失败';
+$lang->upgrade->storyStageList['delivering'] = '交付中';
+$lang->upgrade->storyStageList['pending']    = '待发布';
+$lang->upgrade->storyStageList['released']   = '已发布';
+$lang->upgrade->storyStageList['closed']     = '已关闭';
diff --git a/module/upgrade/model.php b/module/upgrade/model.php
index 297559c7b9..0ad39902cd 100644
--- a/module/upgrade/model.php
+++ b/module/upgrade/model.php
@@ -8784,12 +8784,220 @@ class upgradeModel extends model
         return true;
     }
 
+    /**
+     * 为自定义过的需求阶段增加条目。
+     * Add items for custom story stage.
+     *
+     * @access public
+     * @return bool
+     */
+    public function changeCustomStoryStage(): bool
+    {
+        $clientLang = $this->app->getClientLang();
+        $customStagePairs = $this->dao->select('`key`, value')->from(TABLE_LANG)
+            ->where('module')->eq('story')
+            ->andWhere('section')->eq('stageList')
+            ->andWhere('lang')->eq($clientLang)
+            ->fetchPairs();
+
+        if(empty($customStagePairs))
+        {
+            $clientLang = 'all';
+            $customStagePairs = $this->dao->select('`key`, value')->from(TABLE_LANG)
+                ->where('module')->eq('story')
+                ->andWhere('section')->eq('stageList')
+                ->andWhere('lang')->eq($clientLang)
+                ->fetchPairs();
+        }
+
+        if(empty($customStagePairs)) return false;
+
+        $this->dao->delete()->from(TABLE_LANG)
+            ->where('module')->eq('story')
+            ->andWhere('section')->eq('stageList')
+            ->andWhere('lang')->eq($clientLang)
+            ->exec();
+
+        foreach($this->lang->upgrade->storyStageList as $key => $value)
+        {
+            $item = new stdclass();
+            $item->lang    = $clientLang;
+            $item->module  = 'story';
+            $item->section = 'stageList';
+            $item->key     = $key;
+            $item->value   = isset($customStagePairs[$key]) ? $customStagePairs[$key] : $value;
+            $item->system  = '1';
+            $item->vision  = 'rnd';
+
+            $this->dao->insert(TABLE_LANG)->data($item)->exec();
+        }
+
+        return true;
+    }
+
+    /**
+     * 禅道20版本之前，用需和软需是关联关系，多对多，现改为父子关系，一对多。
+     * Before ZenTao 20, the relationship between use requirements and story is a many-to-many relationship, now changed to a parent-child relationship, a one-to-many relationship.
+     *
+     * @access public
+     * @return void
+     */
+    public function processStoryRelation()
+    {
+        $this->loadModel('story');
+        $relations = $this->dao->select('t1.*, t2.parent as BParent, t2.isParent')->from(TABLE_RELATION)->alias('t1')
+            ->leftJoin(TABLE_STORY)->alias('t2')->on('t1.BID = t2.id')
+            ->where('AType')->eq('requirement')
+            ->andWhere('BType')->eq('story')
+            ->andWhere('relation')->eq('subdivideinto')
+            ->orderBy('AID asc')
+            ->fetchGroup('AID', 'BID');
+
+        $processd = array(); // 记录已处理的软件需求，一个软件需求只能有一个父需求。
+        foreach($relations as $AID => $storyList)
+        {
+            $hasChild    = false;
+            $lastChildID = 0;
+
+            foreach($storyList as $BID => $story)
+            {
+                if($story->BParent > 0) continue; // 如果已经是子需求，无需处理。
+
+                if(!isset($processd[$BID])) // 没有被其它用需变为子需求，才处理。
+                {
+                    $processd[$BID] = $BID;
+
+                    $hasChild    = true;
+                    $lastChildID = $BID;
+
+                    /* 当软件需求变为子需求后，需要更改这些字段。 */
+                    $child = new stdclass();
+                    $child->parent        = $AID;
+                    $child->parentVersion = $story->AVersion;
+                    $child->path          = ',' . $AID . ',' . $BID . ',';
+                    $child->root          = $AID;
+
+                    $this->dao->update(TABLE_STORY)->data($child)->where('id')->eq($BID)->exec();
+
+                    /* 如果该软件需求本身就是父需求，则将root和path同步给它的子需求。 */
+                    if($story->isParent == '1')
+                    {
+                        $this->dao->update(TABLE_STORY)
+                             ->set('root')->eq($AID)
+                             ->set("path = concat(',', {$AID}, path)")
+                             ->where('parent')->eq($BID)
+                             ->exec();
+                    }
+
+                    /* 将用需软需的关联关系去掉，它们现在是父子关系了。 */
+                    $this->dao->delete()->from(TABLE_RELATION)->where('AID')->eq($BID)->andWhere('BID')->eq($AID)->exec();
+                    $this->dao->delete()->from(TABLE_RELATION)->where('AID')->eq($AID)->andWhere('BID')->eq($BID)->exec();
+                }
+            }
+
+            if($hasChild)
+            {
+                /* 如果用需成为了父需求，则需要通过它最后一个子需求计算它的阶段、工时、状态等信息。 */
+                $this->dao->update(TABLE_STORY)->set('isParent')->eq('1')->where('id')->eq($AID)->exec();
+                $this->story->setStage($lastChildID);
+                $this->story->updateParentStatus($lastChildID, $AID, false);
+            }
+        }
+
+        /* 其它没被处理成父子关系的细分关系，变成关联关系。 */
+        $this->dao->update(TABLE_RELATION)->set('relation')->eq('linkedto')->where('relation')->eq('subdivideinto')->exec();
+        $this->dao->update(TABLE_RELATION)->set('relation')->eq('linkedfrom')->where('relation')->eq('subdividedfrom')->exec();
+    }
+
+    /**
+     * 禅道20版本前，软需关联软需，用需关联用需，是以字符串形式记录在story表的linkStories字段中，现迁移到relation表中。
+     * Before ZenTao 20, the relationship between stories and stories, and the relationship between requirements and requirements, are recorded in the linkStories field of the story table in string form, and now migrated to the relation table.
+     *
+     * @access public
+     * @return void
+     */
+    public function processLinkStories()
+    {
+        $doProcess = function($stories, $storyType)
+        {
+            foreach($stories as $storyID => $linkStories)
+            {
+                $linkStories = explode(',', trim($linkStories, ','));
+                foreach($linkStories as $linkStoryID)
+                {
+                    if(!$linkStoryID) continue;
+
+                    $relation = new stdclass();
+                    $relation->AType    = $storyType;
+                    $relation->AID      = $storyID;
+                    $relation->BType    = $storyType;
+                    $relation->BID      = $linkStoryID;
+                    $relation->relation = 'linkedto';
+
+                    $this->dao->replace(TABLE_RELATION)->data($relation)->exec();
+
+                    $relation->AType    = $storyType;
+                    $relation->AID      = $linkStoryID;
+                    $relation->BType    = $storyType;
+                    $relation->BID      = $storyID;
+                    $relation->relation = 'linkedfrom';
+
+                    $this->dao->replace(TABLE_RELATION)->data($relation)->exec();
+                }
+            }
+        };
+
+        $stories = $this->dao->select('id, linkStories')->from(TABLE_STORY)
+            ->where('linkStories')->ne('')
+            ->andWhere('deleted')->eq('0')
+            ->fetchPairs();
+
+        $requirements = $this->dao->select('id, linkRequirements')->from(TABLE_STORY)
+            ->where('linkRequirements')->ne('')
+            ->andWhere('deleted')->eq('0')
+            ->fetchPairs();
+
+        $doProcess($stories, 'story');
+        $doProcess($requirements, 'requirement');
+    }
+
+    /**
+     * 如果用户自定义过需求概念，则追加默认的业需概念。
+     * If the user has customized the concept of demand, append the default concept of business demand.
+     *
+     * @access public
+     * @return void
+     */
+    public function addERName()
+    {
+        $lang = $this->app->getClientLang();
+
+        $URSRList = $this->dao->select('*')->from(TABLE_LANG)
+              ->where('lang')->eq($lang)
+              ->andWhere('module')->eq('custom')
+              ->andWhere('section')->eq('URSRList')
+              ->fetchAll();
+
+        foreach($URSRList as $URSR)
+        {
+            $value = json_decode($URSR->value);
+            if(isset($value->ERName)) continue;
+
+            $value->ERName = $this->lang->defaultERName;
+
+            $this->dao->update(TABLE_LANG)
+                 ->set('value')->eq(json_encode($value))
+                 ->where('id')->eq($URSR->id)
+                 ->exec();
+        }
+    }
+
     /**
      * 更新升级BI内置数据。
      * Import BI data.
      *
      * @access public
-     * @return bool
+     * @return void
      */
     public function upgradeBIData()
     {
diff --git a/module/user/control.php b/module/user/control.php
index 9b91987919..6c73d947c4 100755
--- a/module/user/control.php
+++ b/module/user/control.php
@@ -746,7 +746,7 @@ class user extends control
         $method = strtolower($method);
 
         $this->app->loadLang('my');
-        $this->app->loadLang($module == 'requirement' ? 'story' : $module);
+        $this->app->loadLang($module);
 
         /* 判断禁止访问的类型。*/
         /* Judge the type of deny. */
diff --git a/test/data/childstory.yaml b/test/data/childstory.yaml
index d29bd61ef0..8df9e77d3d 100644
--- a/test/data/childstory.yaml
+++ b/test/data/childstory.yaml
@@ -239,13 +239,6 @@ fields:
     postfix: ""
     loop: 0
     format: ""
-  - field: childStories
-    note: "细分需求"
-    range: 0
-    prefix: ""
-    postfix: ""
-    loop: 0
-    format: ""
   - field: linkStories
     note: "相关需求"
     range: 0
diff --git a/test/data/story.yaml b/test/data/story.yaml
index bf66d4e8a3..79c66f8901 100644
--- a/test/data/story.yaml
+++ b/test/data/story.yaml
@@ -38,6 +38,13 @@ fields:
     postfix: ""
     loop: 0
     format: ""
+  - field: grade
+    note: "需求层级"
+    range: 1-2
+    prefix: ""
+    postfix: ""
+    loop: 0
+    format: ""
   - field: source
     note: "需求来源"
     range: customer,user,po,market,service,operation,support,competitor,partner,dev,tester,bug,forum,other
@@ -226,13 +233,6 @@ fields:
     postfix: ""
     loop: 0
     format: ""
-  - field: childStories
-    note: "细分需求"
-    range: 0
-    prefix: ""
-    postfix: ""
-    loop: 0
-    format: ""
   - field: linkStories
     note: "相关需求"
     range: 0
diff --git a/test/data/storygrade.yaml b/test/data/storygrade.yaml
new file mode 100644
index 0000000000..82baf926e0
--- /dev/null
+++ b/test/data/storygrade.yaml
@@ -0,0 +1,14 @@
+title: table zt_storygrade
+desc: "需求阶段"
+author: automated export
+version: "1.0"
+fields:
+  - field: type
+    note: "类型"
+    range: "epic{2},requirement{2},story{2}"
+  - field: grade
+    range: "1,2"
+  - field: name
+    range: "BR1,BR2,UR1,UR2,SR1,SR2"
+  - field: status
+    range: "enable"
diff --git a/www/js/zui3/zin.js b/www/js/zui3/zin.js
index 0b848efd74..d201f11ef2 100644
--- a/www/js/zui3/zin.js
+++ b/www/js/zui3/zin.js
@@ -497,7 +497,7 @@
         if(options.modal) headers['X-Zui-Modal'] = 'true';
         const requestMethod = (options.method || 'GET').toUpperCase();
         if(!options.cache && options.cache !== false) options.cache = requestMethod === 'GET' ? (url + (url.includes('?') ? '&zin=' : '?zin=') + encodeURIComponent(selectors.join(','))) : false;
-        if(!window.config || !window.config.clientCache) options.cache = false;
+        options.cache = false; // Disable local cache for 20.1.
         const cacheKey = options.cache;
         let cache;
         const renderPageData = (data, onlyZinDebug) =>
diff --git a/www/js/zui3/zui.zentao.css b/www/js/zui3/zui.zentao.css
index 9f83a9ad6b..c58940d792 100644
--- a/www/js/zui3/zui.zentao.css
+++ b/www/js/zui3/zui.zentao.css
@@ -1,2 +1,2 @@
 /*! tailwindcss v3.4.3 | MIT License | https://tailwindcss.com*/*,:after,:before{border-color:rgb(var(--color-gray-200-rgb));border-style:solid;border-width:0;box-sizing:border-box}:after,:before{--tw-content:""}:host,html{line-height:1.5;-webkit-text-size-adjust:100%;font-family:-apple-system,Noto Sans,Helvetica Neue,Helvetica,Nimbus Sans L,Arial,Liberation Sans,PingFang SC,Hiragino Sans GB,Noto Sans CJK SC,Source Han Sans SC,Source Han Sans CN,Microsoft YaHei,Wenquanyi Micro Hei,WenQuanYi Zen Hei,ST Heiti,SimHei,WenQuanYi Zen Hei Sharp,sans-serif;font-feature-settings:normal;font-variation-settings:normal;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-tap-highlight-color:transparent}body{line-height:inherit;margin:0}hr{border-top-width:1px;color:inherit;height:0}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,pre,samp{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-feature-settings:normal;font-size:1em;font-variation-settings:normal}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{border-collapse:collapse;border-color:inherit;text-indent:0}button,input,optgroup,select,textarea{color:inherit;font-family:inherit;font-feature-settings:inherit;font-size:100%;font-variation-settings:inherit;font-weight:inherit;letter-spacing:inherit;line-height:inherit;margin:0;padding:0}button,select{text-transform:none}button,input:where([type=button]),input:where([type=reset]),input:where([type=submit]){-webkit-appearance:button;background-color:transparent;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dd,dl,figure,h1,h2,h3,h4,h5,h6,hr,p,pre{margin:0}fieldset{margin:0}fieldset,legend{padding:0}menu,ol,ul{list-style:none;margin:0;padding:0}dialog{padding:0}textarea{resize:vertical}input::-moz-placeholder,textarea::-moz-placeholder{color:rgb(var(--color-gray-400-rgb));opacity:1}input::placeholder,textarea::placeholder{color:rgb(var(--color-gray-400-rgb));opacity:1}[role=button],button{cursor:pointer}:disabled{cursor:default}audio,canvas,embed,iframe,img,object,svg,video{display:block;vertical-align:middle}img,video{height:auto;max-width:100%}[hidden]{display:none}:root{--screen-2xl:1720px;--color-gray-50:#fcfdfe;--color-gray-100:#eff1f3;--color-gray-200:#ebedf3;--color-gray-300:#d2d6e5;--color-gray-400:#b2b9c5;--color-gray-500:#64758b;--color-gray-600:#4a577f;--color-gray-700:#3d4667;--color-gray-800:#353d57;--color-gray-900:#30394a;--color-gray-950:#0b0f18;--color-gray-50-rgb:252,253,254;--color-gray-100-rgb:239,241,243;--color-gray-200-rgb:235,237,243;--color-gray-300-rgb:210,214,229;--color-gray-400-rgb:178,185,197;--color-gray-500-rgb:100,117,139;--color-gray-600-rgb:74,87,127;--color-gray-700-rgb:61,70,103;--color-gray-800-rgb:53,61,87;--color-gray-900-rgb:48,57,74;--color-gray-950-rgb:11,15,24;--color-primary-50:#eef6ff;--color-primary-100:#d9eaff;--color-primary-200:#bcdcff;--color-primary-300:#8ec6ff;--color-primary-400:#59a5ff;--color-primary-500:#3883fa;--color-primary-600:#2b67e5;--color-primary-700:#144ce1;--color-primary-800:#173db6;--color-primary-900:#19388f;--color-primary-950:#142457;--color-primary-50-rgb:238,246,255;--color-primary-100-rgb:217,234,255;--color-primary-200-rgb:188,220,255;--color-primary-300-rgb:142,198,255;--color-primary-400-rgb:89,165,255;--color-primary-500-rgb:56,131,250;--color-primary-600-rgb:43,103,229;--color-primary-700-rgb:20,76,225;--color-primary-800-rgb:23,61,182;--color-primary-900-rgb:25,56,143;--color-primary-950-rgb:20,36,87;--color-secondary-50:#e7f6ff;--color-secondary-100:#cdecff;--color-secondary-200:#9bd9ff;--color-secondary-300:#77cbff;--color-secondary-400:#60c2ff;--color-secondary-500:#37b2fe;--color-secondary-600:#18a6fd;--color-secondary-700:#1099ed;--color-secondary-800:#078ada;--color-secondary-900:#046bab;--color-secondary-950:#062a4b;--color-secondary-50-rgb:231,246,255;--color-secondary-100-rgb:205,236,255;--color-secondary-200-rgb:155,217,255;--color-secondary-300-rgb:119,203,255;--color-secondary-400-rgb:96,194,255;--color-secondary-500-rgb:55,178,254;--color-secondary-600-rgb:24,166,253;--color-secondary-700-rgb:16,153,237;--color-secondary-800-rgb:7,138,218;--color-secondary-900-rgb:4,107,171;--color-secondary-950-rgb:6,42,75;--color-success-50:#effaf6;--color-success-100:#d6f2e7;--color-success-200:#ade5ce;--color-success-300:#83d7b6;--color-success-400:#5aca9d;--color-success-500:#31bd85;--color-success-600:#2ba675;--color-success-700:#28996c;--color-success-800:#21805a;--color-success-900:#185e3b;--color-success-950:#0e3421;--color-success-50-rgb:239,250,246;--color-success-100-rgb:214,242,231;--color-success-200-rgb:173,229,206;--color-success-300-rgb:131,215,182;--color-success-400-rgb:90,202,157;--color-success-500-rgb:49,189,133;--color-success-600-rgb:43,166,117;--color-success-700-rgb:40,153,108;--color-success-800-rgb:33,128,90;--color-success-900-rgb:24,94,59;--color-success-950-rgb:14,52,33;--color-warning-50:#fff4ea;--color-warning-100:#ffecdb;--color-warning-200:#ffd2a9;--color-warning-300:#ffbc7e;--color-warning-400:#ffaf65;--color-warning-500:#ff9f46;--color-warning-600:#f38f19;--color-warning-700:#ed8307;--color-warning-800:#d17100;--color-warning-900:#af5f01;--color-warning-50-rgb:255,244,234;--color-warning-100-rgb:255,236,219;--color-warning-200-rgb:255,210,169;--color-warning-300-rgb:255,188,126;--color-warning-400-rgb:255,175,101;--color-warning-500-rgb:255,159,70;--color-warning-600-rgb:243,143,25;--color-warning-700-rgb:237,131,7;--color-w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