diff --git a/export_relation_schema.php b/export_relation_schema.php
index b8c2a4d17..1c135e5b7 100644
--- a/export_relation_schema.php
+++ b/export_relation_schema.php
@@ -76,19 +76,26 @@ if ($cfgRelation['pdfwork']) {
     $user_schema = new PMA_User_Schema();
 
     /**
-     * This function will process the user input
+     * This function will process the user defined pages
+     * and tables which will be exported as Relational schema
+     * you can set the table positions on the paper via scratchboard
+     * for table positions, put the x,y co-ordinates
+     * 
+     * @param string $do It tells what the Schema is supposed to do
+     *                  create and select a page, generate schema etc             
      */
 
     $user_schema->processUserPreferences($do);
 
     /**
-     * Now first show some possibility to select a page for the export of relation schema
+     * Show some possibility to select a page for the export of relation schema
+     * Lists all pages created before and can select and edit from them
      */
 
     $user_schema->selectPage();
 
     /**
-     * Possibility to create a new page: 
+     * Create a new page where relations will be drawn 
      */
 
     $user_schema->createPage();
diff --git a/libraries/schema/User_Schema.class.php b/libraries/schema/User_Schema.class.php
index 60c703a92..29345a9df 100644
--- a/libraries/schema/User_Schema.class.php
+++ b/libraries/schema/User_Schema.class.php
@@ -25,7 +25,8 @@ class PMA_User_Schema
      * you can set the table positions on the paper via scratchboard
      * for table positions, put the x,y co-ordinates
      * 
-     * @param string $do It is hidden value
+     * @param string $do It tells what the Schema is supposed to do
+     *                  create and select a page, generate schema etc
      * @access public
      */