diff --git a/module/dev/config.php b/module/dev/config.php
index 7e24682bbd..a12815a900 100644
--- a/module/dev/config.php
+++ b/module/dev/config.php
@@ -241,7 +241,7 @@ $config->dev->postParams['testcase']['create']['expect']       = 'string';
 $config->dev->postParams['testcase']['create']['mailto']       = 'string';
 $config->dev->postParams['testcase']['create']['keywords']     = 'string';
 
-$config->dev->navTypes = array('second', 'third', 'feature');
+$config->dev->navTypes = array('second', 'third', 'tag');
 
 $config->disableFeature = array();
 if(!helper::hasFeature('waterfall')) $config->disableFeature = array('design', 'stage', 'programplan', 'weekly', 'researchplan', 'researchreport', 'gapanalysis');
diff --git a/module/dev/control.php b/module/dev/control.php
index a52d3a6756..9dd8c1c437 100644
--- a/module/dev/control.php
+++ b/module/dev/control.php
@@ -85,7 +85,7 @@ class dev extends control
     /**
      *  Custom menu lang item.
      *
-     * @param  string $type       common|first|second|third|feature
+     * @param  string $type       common|first|second|third|tag
      * @param  string $module
      * @param  string $method
      * @param  string $language   zh_cn|en|fr|de|zh_tw
@@ -118,8 +118,8 @@ class dev extends control
             $moduleName = $module . 'SubMenu';
         }
 
-        if($type == 'feature' and empty($module)) $module = 'my';
-        if($type == 'feature' and empty($method)) $method = 'todo';
+        if($type == 'tag' and empty($module)) $module = 'my';
+        if($type == 'tag' and empty($method)) $method = 'todo';
 
         if($this->server->request_method == 'POST')
         {
diff --git a/module/dev/lang/de.php b/module/dev/lang/de.php
index 1e9843693b..fb484cc2d7 100644
--- a/module/dev/lang/de.php
+++ b/module/dev/lang/de.php
@@ -193,7 +193,7 @@ $lang->dev->featureBar['langItem']['common']  = 'Common';
 $lang->dev->featureBar['langItem']['first']   = 'First Menu';
 $lang->dev->featureBar['langItem']['second']  = 'Second Menu';
 $lang->dev->featureBar['langItem']['third']   = 'Third Menu';
-$lang->dev->featureBar['langItem']['feature'] = 'Search Tab';
+$lang->dev->featureBar['langItem']['tag']     = 'Search Tag';
 
 $lang->dev->projectMenu['project']       = "{$lang->projectCommon} Common";
 $lang->dev->projectMenu['scrum']         = "Scrum {$lang->projectCommon}";
diff --git a/module/dev/lang/en.php b/module/dev/lang/en.php
index af7bf8fb21..d385377cdb 100644
--- a/module/dev/lang/en.php
+++ b/module/dev/lang/en.php
@@ -193,7 +193,7 @@ $lang->dev->featureBar['langItem']['common']  = 'Common';
 $lang->dev->featureBar['langItem']['first']   = 'First Menu';
 $lang->dev->featureBar['langItem']['second']  = 'Second Menu';
 $lang->dev->featureBar['langItem']['third']   = 'Third Menu';
-$lang->dev->featureBar['langItem']['feature'] = 'Search Tab';
+$lang->dev->featureBar['langItem']['tag']     = 'Search Tag';
 
 $lang->dev->projectMenu['project']       = "{$lang->projectCommon} Common";
 $lang->dev->projectMenu['scrum']         = "Scrum {$lang->projectCommon}";
diff --git a/module/dev/lang/fr.php b/module/dev/lang/fr.php
index af7bf8fb21..d385377cdb 100644
--- a/module/dev/lang/fr.php
+++ b/module/dev/lang/fr.php
@@ -193,7 +193,7 @@ $lang->dev->featureBar['langItem']['common']  = 'Common';
 $lang->dev->featureBar['langItem']['first']   = 'First Menu';
 $lang->dev->featureBar['langItem']['second']  = 'Second Menu';
 $lang->dev->featureBar['langItem']['third']   = 'Third Menu';
-$lang->dev->featureBar['langItem']['feature'] = 'Search Tab';
+$lang->dev->featureBar['langItem']['tag']     = 'Search Tag';
 
 $lang->dev->projectMenu['project']       = "{$lang->projectCommon} Common";
 $lang->dev->projectMenu['scrum']         = "Scrum {$lang->projectCommon}";
diff --git a/module/dev/lang/zh-cn.php b/module/dev/lang/zh-cn.php
index cef604e3bf..7929aff2f1 100644
--- a/module/dev/lang/zh-cn.php
+++ b/module/dev/lang/zh-cn.php
@@ -193,7 +193,7 @@ $lang->dev->featureBar['langItem']['common']  = '公共';
 $lang->dev->featureBar['langItem']['first']   = '一级菜单';
 $lang->dev->featureBar['langItem']['second']  = '二级菜单';
 $lang->dev->featureBar['langItem']['third']   = '三级菜单';
-$lang->dev->featureBar['langItem']['feature'] = '检索标签';
+$lang->dev->featureBar['langItem']['tag']     = '检索标签';
 
 $lang->dev->projectMenu['project']       = "{$lang->projectCommon}通用";
 $lang->dev->projectMenu['scrum']         = "敏捷{$lang->projectCommon}";
diff --git a/module/dev/model.php b/module/dev/model.php
index d1035d16a2..89a498e65e 100644
--- a/module/dev/model.php
+++ b/module/dev/model.php
@@ -360,8 +360,8 @@ class devModel extends model
         if(empty($language)) $language = $this->app->getClientLang();
         $originalLangs = array();
         $defaultLang   = $this->loadDefaultLang($language);
-        if($type == 'feature' and in_array($module, $this->config->dev->projectMenus)) $module = 'project';
-        if($type == 'feature')
+        if($type == 'tag' and in_array($module, $this->config->dev->projectMenus)) $module = 'project';
+        if($type == 'tag')
         {
             $this->defaultLang = $defaultLang;
             $defaultLang       = $this->loadDefaultLang($language, $module);
@@ -379,7 +379,7 @@ class devModel extends model
             $originalLangs['SRCommon']        = $this->lang->dev->SR;
             if(!$this->config->URAndSR) unset($originalLangs['URCommon']);
         }
-        elseif($type == 'feature')
+        elseif($type == 'tag')
         {
             $langKey     = 'featureBar-' . $method . '_';
             $featureBars = zget($defaultLang->$module->featureBar, $method, array());
@@ -465,7 +465,7 @@ class devModel extends model
                 $customeds = $this->loadModel('custom')->getItems("lang={$language}&module={$module}SubMenu&section=$method&vision={$this->config->vision}");
                 $langKey   = "{$method}_";
                 break;
-            case 'feature':
+            case 'tag':
                 $method = str_replace('_', '-', $method);
                 $customeds = $this->loadModel('custom')->getItems("lang={$language}&module={$module}&section=featureBar-$method&vision={$this->config->vision}");
                 $langKey   = "featureBar-{$method}_";
@@ -591,7 +591,7 @@ class devModel extends model
     }
 
     /**
-     * Get feature menus.
+     * Get tags.
      *
      * @param  string $menu
      * @param  string $module
@@ -599,7 +599,7 @@ class devModel extends model
      * @access public
      * @return array
      */
-    public function getFeatureMenus($module, $moduleName = '', $methodName = '')
+    public function getTagMenus($module, $moduleName = '', $methodName = '')
     {
         $menus = array();
         foreach(array('homeMenu', 'menu') as $menu)
@@ -722,10 +722,10 @@ class devModel extends model
             $menuItem->children = array();
 
             $childFunc = 'get' . ucfirst($type) . 'Menus';
-            if($type == 'feature' and in_array($menuKey, $this->config->dev->projectMenus))
+            if($type == 'tag' and in_array($menuKey, $this->config->dev->projectMenus))
             {
                 if($menuKey != 'project') continue;
-                foreach($this->config->dev->projectMenus as $projectModule) $menuItem->children += $this->getFeatureMenus($projectModule, $module, $method);
+                foreach($this->config->dev->projectMenus as $projectModule) $menuItem->children += $this->getTagMenus($projectModule, $module, $method);
             }
             else
             {
@@ -740,7 +740,7 @@ class devModel extends model
         }
 
         /* Unique menu tree by module and method. */
-        if($type == 'feature')
+        if($type == 'tag')
         {
             $methods = array();
             foreach($menuTree as $index => $menuItem)