diff --git a/module/execution/model.php b/module/execution/model.php
index f58abd70bd..9117c74865 100644
--- a/module/execution/model.php
+++ b/module/execution/model.php
@@ -442,7 +442,7 @@ class executionModel extends model
         $oldExecution = $this->dao->findById($executionID)->from(TABLE_EXECUTION)->fetch();
 
         /* Judgment of required items. */
-        if($this->post->code == '')
+        if($oldExecution->type != 'stage' and $this->post->code == '')
         {
             dao::$errors['code'] = sprintf($this->lang->error->notempty, $this->lang->execution->code);
             return false;
@@ -502,7 +502,7 @@ class executionModel extends model
             ->checkIF($execution->begin != '', 'begin', 'date')
             ->checkIF($execution->end != '', 'end', 'date')
             ->checkIF($execution->end != '', 'end', 'gt', $execution->begin)
-            ->check('code', 'unique', "id!=$executionID and deleted='0'")
+            ->check('code', 'unique', "id!=$executionID and code!='' and deleted='0'")
             ->where('id')->eq($executionID)
             ->limit(1)
             ->exec();
@@ -609,11 +609,11 @@ class executionModel extends model
             $nameList[$executionName] = $executionName;
 
             /* Check unique code for edited executions. */
-            if(empty($executionCode))
+            if($projectModel == 'scrum' and empty($executionCode))
             {
                 dao::$errors['code'][] = 'execution#' . $executionID .  sprintf($this->lang->error->notempty, $this->lang->project->code);
             }
-            else
+            elseif(!empty($executionCode))
             {
                 /* Check unique code for edited executions. */
                 if(isset($codeList[$executionCode])) dao::$errors['code'][] = 'execution#' . $executionID .  sprintf($this->lang->error->unique, $this->lang->project->code, $executionCode);
diff --git a/module/product/lang/de.php b/module/product/lang/de.php
index c96d8e64a6..8b1cb9a2c3 100644
--- a/module/product/lang/de.php
+++ b/module/product/lang/de.php
@@ -26,7 +26,7 @@ $lang->product->other         = 'Andere';
 $lang->product->closed        = 'Geschlossen';
 $lang->product->updateOrder   = 'Ranking';
 $lang->product->orderAction   = "Rank {$lang->productCommon}";
-$lang->product->all           = "Alle {$lang->productCommon}";
+$lang->product->all           = "{$lang->productCommon} List";
 $lang->product->manageLine    = "Manage {$lang->productCommon} Line";
 $lang->product->newLine       = "Create {$lang->productCommon} Line";
 $lang->product->export        = 'Exportiere Daten';
diff --git a/module/product/lang/en.php b/module/product/lang/en.php
index 32afdb17ae..9830b23769 100644
--- a/module/product/lang/en.php
+++ b/module/product/lang/en.php
@@ -24,7 +24,7 @@ $lang->product->mine            = 'Mine';
 $lang->product->other           = 'Others';
 $lang->product->closed          = 'Closed';
 $lang->product->updateOrder     = 'Order';
-$lang->product->all             = "All {$lang->productCommon}s";
+$lang->product->all             = "{$lang->productCommon} List";
 $lang->product->manageLine      = "Manage {$lang->productCommon} Line";
 $lang->product->newLine         = "Create {$lang->productCommon} Line";
 $lang->product->export          = 'Export';
diff --git a/module/product/lang/fr.php b/module/product/lang/fr.php
index d8733d015e..e5e9f9a337 100644
--- a/module/product/lang/fr.php
+++ b/module/product/lang/fr.php
@@ -26,7 +26,7 @@ $lang->product->other         = 'Autres';
 $lang->product->closed        = 'Fermés';
 $lang->product->updateOrder   = 'Ordre';
 $lang->product->orderAction   = "Rang {$lang->productCommon}";
-$lang->product->all           = "Tous les {$lang->productCommon}s";
+$lang->product->all           = "{$lang->productCommon} List";
 $lang->product->manageLine    = "Manage {$lang->productCommon} Line";
 $lang->product->newLine       = "Create {$lang->productCommon} Line";
 $lang->product->export        = 'Export';
diff --git a/module/product/lang/vi.php b/module/product/lang/vi.php
index 270cda8ec6..99615645b8 100644
--- a/module/product/lang/vi.php
+++ b/module/product/lang/vi.php
@@ -26,7 +26,7 @@ $lang->product->other         = 'Khác';
 $lang->product->closed        = 'Đã đóng';
 $lang->product->updateOrder   = 'Sắp xếp';
 $lang->product->orderAction   = "Đánh giá {$lang->productCommon}";
-$lang->product->all           = "Tất cả {$lang->productCommon}";
+$lang->product->all           = "{$lang->productCommon} List";
 $lang->product->manageLine    = "Manage {$lang->productCommon} Line";
 $lang->product->newLine       = "Create {$lang->productCommon} Line";
 $lang->product->export        = 'Xuất';
diff --git a/module/product/lang/zh-cn.php b/module/product/lang/zh-cn.php
index 7d59a2f19a..934fa90cb4 100644
--- a/module/product/lang/zh-cn.php
+++ b/module/product/lang/zh-cn.php
@@ -24,7 +24,7 @@ $lang->product->mine            = '我负责';
 $lang->product->other           = '其他';
 $lang->product->closed          = '已关闭';
 $lang->product->updateOrder     = '排序';
-$lang->product->all             = "所有{$lang->productCommon}";
+$lang->product->all             = "{$lang->productCommon}列表";
 $lang->product->manageLine      = "维护{$lang->productCommon}线";
 $lang->product->newLine         = "新建{$lang->productCommon}线";
 $lang->product->export          = '导出数据';
diff --git a/module/testcase/control.php b/module/testcase/control.php
index 5ed65aa4ed..884299d67a 100644
--- a/module/testcase/control.php
+++ b/module/testcase/control.php
@@ -642,11 +642,10 @@ class testcase extends control
             if($this->app->openApp == 'qa')        $this->testcase->setMenu($this->products, $productID, $case->branch);
 
             $this->view->title      = "CASE #$case->id $case->title - " . $this->products[$productID];
-            $this->view->position[] = html::a($this->createLink('testcase', 'browse', "productID=$productID"), $this->products[$productID]);
 
             $this->view->product     = $product;
             $this->view->branches    = $branches;
-            $this->view->productName = $this->products[$productID];
+            $this->view->productName = isset($this->products[$productID]) ? $this->products[$productID] : '';
             $this->view->branchName  = $product->type == 'normal' ? '' : zget($branches, $case->branch, '');
         }
 
diff --git a/module/testcase/view/view.html.php b/module/testcase/view/view.html.php
index 35a40d8326..c3707c1155 100644
--- a/module/testcase/view/view.html.php
+++ b/module/testcase/view/view.html.php
@@ -151,7 +151,7 @@
             <?php else:?>
             <tr>
               <th class='thWidth'><?php echo $lang->testcase->product;?></th>
-              <td><?php echo common::hasPriv('product', 'browse') ? html::a($this->createLink('product', 'browse', "productID=$case->product"), $productName) : $productName;?></td>
+              <td><?php echo (common::hasPriv('product', 'browse') and $productName) ? html::a($this->createLink('product', 'browse', "productID=$case->product"), $productName) : $productName;?></td>
             </tr>
             <?php if($product->type != 'normal'):?>
             <tr>