diff --git a/module/workestimation/control.php b/module/workestimation/control.php
index f5151fd211..32d6f61478 100644
--- a/module/workestimation/control.php
+++ b/module/workestimation/control.php
@@ -11,6 +11,13 @@
  */
 class workestimation extends control
 {
+    /**
+     * Index
+     *
+     * @param  int    $program
+     * @access public
+     * @return void
+     */
     public function index($program = 0)
     {
         $program = $program ? $program : $this->session->program;
@@ -27,7 +34,7 @@ class workestimation extends control
 
         $budget = $this->workestimation->getBudget($program);
         if(!isset($this->config->project)) $this->config->project = new stdclass();
-        if(empty($budget)) 
+        if(empty($budget))
         {
             $this->app->loadConfig('estimate');
             $budget = new stdclass();
diff --git a/module/workestimation/model.php b/module/workestimation/model.php
index d749bbe3b4..b1f13a38ce 100644
--- a/module/workestimation/model.php
+++ b/module/workestimation/model.php
@@ -11,11 +11,25 @@
  */
 class workestimationModel extends model
 {
+    /**
+     * Get a budget
+     *
+     * @param  int    $program
+     * @access public
+     * @return array
+     */
     public function getBudget($program)
     {
         return $this->dao->select('*')->from(TABLE_WORKESTIMATION)->where('program')->eq($program)->fetch();
     }
 
+    /**
+     * Get program scale
+     *
+     * @param  int    $program
+     * @access public
+     * @return int
+     */
     public function getProgramScale($program)
     {
         $products = $this->loadModel('product')->getPairs($program);
@@ -23,13 +37,20 @@ class workestimationModel extends model
         return $this->dao->select('cast(sum(estimate) as decimal(10,2)) as scale')->from(TABLE_STORY)->where('product')->in($productIdList)->andWhere('type')->eq('requirement')->fetch('scale');
     }
 
+    /**
+     * Save a budget
+     *
+     * @param  int    $program
+     * @access public
+     * @return bool
+     */
     public function save($program)
     {
         $budget = $this->getBudget($program);
         $postBudget = fixer::input('post')->get();
         $postBudget->program = $program;
 
-        if(empty($budget)) 
+        if(empty($budget))
         {
             $this->dao->insert(TABLE_WORKESTIMATION)
                 ->batchcheck($this->config->workestimation->index->requiredFields, 'notempty')
diff --git a/module/workestimation/view/index.html.php b/module/workestimation/view/index.html.php
index d3455d2bba..bbd2fe84dd 100644
--- a/module/workestimation/view/index.html.php
+++ b/module/workestimation/view/index.html.php
@@ -1,3 +1,15 @@
+<?php
+/**
+ * The index of workestimation module of ZenTaoPMS.
+ *
+ * @copyright   Copyright 2009-2015 青岛易软天创网络科技有限公司(QingDao Nature Easy Soft Network Technology Co,LTD, www.cnezsoft.com)
+ * @license     ZPL (http://zpl.pub/page/zplv12.html)
+ * @author      Chunsheng Wang <chunsheng@cnezsoft.com>
+ * @package     workestimation
+ * @version     $Id: index.html.php 4903 2013-06-26 05:32:59Z wyd621@gmail.com $
+ * @link        http://www.zentao.net
+ */
+?>
 <?php include '../../common/view/header.html.php';?>
 <style>.unify-padding{width:94px;}</style>
 <div id='mainContent' class='main-content'>