diff --git a/module/custom/control.php b/module/custom/control.php
index a770c7b2e6..5f46e7eb59 100644
--- a/module/custom/control.php
+++ b/module/custom/control.php
@@ -627,7 +627,7 @@ class custom extends control
      */
     public function mode()
     {
-        $mode = zget($this->config->global, 'mode', 'classic');
+        $mode = zget($this->config->global, 'mode', 'lite');
         if($this->post->mode and $this->post->mode != $mode) // If mode value change.
         {
             $mode = fixer::input('post')->get('mode');
diff --git a/module/custom/view/mode.html.php b/module/custom/view/mode.html.php
index 2d480ed65c..554321244b 100644
--- a/module/custom/view/mode.html.php
+++ b/module/custom/view/mode.html.php
@@ -24,7 +24,7 @@
         <td>
           <p>
             <?php $isDisabled = $changedMode == 'yes' ? ' disabled' : '';?>
-            <label class="radio-inline"><input type="radio" name="mode" value="classic" <?php echo $mode == 'classic'? "checked='checked'" : ''; echo $isDisabled;?> id="modeclassic"><?php echo $lang->upgrade->to15Mode['classic'];?></label>
+            <label class="radio-inline"><input type="radio" name="mode" value="lite" <?php echo $mode == 'lite'? "checked='checked'" : ''; echo $isDisabled;?> id="modelite"><?php echo $lang->upgrade->to15Mode['lite'];?></label>
             <label class="radio-inline"><input type="radio" name="mode" value="new" <?php echo $mode == 'new'? "checked='checked'" : ''; echo $isDisabled;?> id="modenew"><?php echo $lang->upgrade->to15Mode['new'];?></label>
           </p>
           <p class='text-info' id='modeTips'><?php echo $lang->upgrade->selectedModeTips['new'];?></p>
diff --git a/module/install/lang/de.php b/module/install/lang/de.php
index d6d35450bc..ce1ae7502b 100644
--- a/module/install/lang/de.php
+++ b/module/install/lang/de.php
@@ -46,7 +46,7 @@ $lang->install->guideVideo          = 'https://dl.cnezsoft.com/vedio/zentaoconce
 $lang->install->introductionContent = <<<EOT
 <div>
   <h4>Dear users,</h4>
-  <p>Welcome to ZenTao project management system. ZenTao has two managment modes in version 15.0 and up. One is the classic management mode, providing two core features, Product and Project; the other is a new project management mode, with Program and Execution added. The following is an introduction to the new mode:</p>
+  <p>Welcome to ZenTao project management system. ZenTao has two managment modes in version 15.0 and up. One is the lite management mode, providing two core features, Product and Project; the other is a new project management mode, with Program and Execution added. The following is an introduction to the new mode:</p>
   <div class='block-content'>
     <div class='block-details'><p class='block-title'><i class='icon icon-program'></i> <strong>Program</strong></p><p>Program is used to manage a group of products and projects, and the company executives or PMO can use it for strategic planning.</p></div>
     <div class='block-details block-right'>
@@ -292,8 +292,8 @@ EOT;
 
 $lang->install->product = array('chanzhi', 'zdoo');
 
-$lang->install->modeList['classic'] = 'Classic mode';
-$lang->install->modeList['new']     = 'Program mode';
+$lang->install->modeList['lite'] = 'Lite mode';
+$lang->install->modeList['new']  = 'Program mode';
 
 $lang->install->promotion = "Produkte von Nature Easy Soft:";
 
diff --git a/module/install/lang/en.php b/module/install/lang/en.php
index b29a9b7c49..0873b7351c 100644
--- a/module/install/lang/en.php
+++ b/module/install/lang/en.php
@@ -46,7 +46,7 @@ $lang->install->guideVideo          = 'https://dl.cnezsoft.com/vedio/zentaoconce
 $lang->install->introductionContent = <<<EOT
 <div>
   <h4>Dear users,</h4>
-  <p>Welcome to ZenTao project management system. ZenTao has two managment modes in version 15.0 and up. One is the classic management mode, providing two core features, Product and Project; the other is a new project management mode, with Program and Execution added. The following is an introduction to the new mode:</p>
+  <p>Welcome to ZenTao project management system. ZenTao has two managment modes in version 15.0 and up. One is the lite management mode, providing two core features, Product and Project; the other is a new project management mode, with Program and Execution added. The following is an introduction to the new mode:</p>
   <div class='block-content'>
     <div class='block-details'><p class='block-title'><i class='icon icon-program'></i> <strong>Program</strong></p><p>Program is used to manage a group of products and projects, and the company executives or PMO can use it for strategic planning.</p></div>
     <div class='block-details block-right'>
@@ -292,8 +292,8 @@ EOT;
 
 $lang->install->product = array('chanzhi', 'zdoo', 'ydisk', 'meshiot');
 
-$lang->install->modeList['classic'] = 'Classic mode';
-$lang->install->modeList['new']     = 'Program mode';
+$lang->install->modeList['lite'] = 'Lite mode';
+$lang->install->modeList['new']  = 'Program mode';
 
 $lang->install->promotion = "Products also from EasyCorp:";
 
diff --git a/module/install/lang/fr.php b/module/install/lang/fr.php
index 02547f7a3b..6e8b3ae374 100644
--- a/module/install/lang/fr.php
+++ b/module/install/lang/fr.php
@@ -46,7 +46,7 @@ $lang->install->guideVideo          = 'https://dl.cnezsoft.com/vedio/zentaoconce
 $lang->install->introductionContent = <<<EOT
 <div>
   <h4>Dear users,</h4>
-  <p>Welcome to ZenTao project management system. ZenTao has two managment modes in version 15.0 and up. One is the classic management mode, providing two core features, Product and Project; the other is a new project management mode, with Program and Execution added. The following is an introduction to the new mode:</p>
+  <p>Welcome to ZenTao project management system. ZenTao has two managment modes in version 15.0 and up. One is the lite management mode, providing two core features, Product and Project; the other is a new project management mode, with Program and Execution added. The following is an introduction to the new mode:</p>
   <div class='block-content'>
     <div class='block-details'><p class='block-title'><i class='icon icon-program'></i> <strong>Program</strong></p><p>Program is used to manage a group of products and projects, and the company executives or PMO can use it for strategic planning.</p></div>
     <div class='block-details block-right'>
@@ -292,8 +292,8 @@ EOT;
 
 $lang->install->product = array('chanzhi', 'zdoo');
 
-$lang->install->modeList['classic'] = 'Classic mode';
-$lang->install->modeList['new']     = 'Program mode';
+$lang->install->modeList['lite'] = 'Lite mode';
+$lang->install->modeList['new']  = 'Program mode';
 
 $lang->install->promotion = "Autres produits de l'équipe Nature Easy Soft :";
 
diff --git a/module/install/lang/zh-cn.php b/module/install/lang/zh-cn.php
index 2d88ec7133..02f9db9690 100644
--- a/module/install/lang/zh-cn.php
+++ b/module/install/lang/zh-cn.php
@@ -46,7 +46,7 @@ $lang->install->guideVideo          = 'https://dl.cnezsoft.com/vedio/program0716
 $lang->install->introductionContent = <<<EOT
 <div>
   <h4>尊敬的用户您好，欢迎您使用禅道项目管理系统。</h4>
-  <p> 禅道自15系列开始提供了两种使用模式，一种是经典管理模式，功能较为精简，主要提供了产品和项目两个核心功能；另一种是全新项目集管理模式，增加了项目集和执行的概念。下面是全新项目集管理模式的介绍：</p>
+  <p> 禅道自15系列开始提供了两种使用模式，一种是迅捷模式，功能较为精简，主要提供了产品和项目两个核心功能；另一种是综合模式，增加了项目集和执行的概念。下面是综合模式的介绍：</p>
   <div class='block-content'>
     <div class='block-details'><p class='block-title'><i class='icon icon-program'></i> <strong>项目集</strong></p><p>项目集用来管理一组相关的产品和项目，公司高层或者PMO可以用来做战略规划。</p></div>
     <div class='block-details block-right'>
@@ -292,8 +292,8 @@ EOT;
 
 $lang->install->product = array('chanzhi', 'zdoo', 'xuanxuan', 'ydisk', 'meshiot');
 
-$lang->install->modeList['classic'] = '经典管理模式';
-$lang->install->modeList['new']     = '全新项目集管理模式';
+$lang->install->modeList['lite'] = '迅捷模式';
+$lang->install->modeList['new']  = '综合模式';
 
 $lang->install->promotion = "为您推荐易软天创旗下其他产品：";
 
diff --git a/module/upgrade/lang/zh-cn.php b/module/upgrade/lang/zh-cn.php
index 97450262e1..c912d22c2f 100644
--- a/module/upgrade/lang/zh-cn.php
+++ b/module/upgrade/lang/zh-cn.php
@@ -93,8 +93,8 @@ $lang->upgrade->mergeProgramDesc = <<<EOD
 <p>选择历史{$lang->projectCommon}作为迭代升级后，用户可以选择这个执行所属的项目集、项目或新建项目集、项目。</p>
 EOD;
 
-$lang->upgrade->to15Mode['classic'] = '经典管理模式';
-$lang->upgrade->to15Mode['new']     = '全新项目集管理模式';
+$lang->upgrade->to15Mode['lite'] = '迅捷模式';
+$lang->upgrade->to15Mode['new']  = '综合模式';
 
 $lang->upgrade->selectedModeTips['classic'] = '后续您还可以在后台-自定义里面切换为全新项目集管理的模式。';
 $lang->upgrade->selectedModeTips['new']     = '切换为项目集管理模式需要对之前的数据进行归并处理，系统会引导您完成这个操作。';