diff --git a/modules/document/document.admin.controller.php b/modules/document/document.admin.controller.php
index a9bf85443..280ae8079 100644
--- a/modules/document/document.admin.controller.php
+++ b/modules/document/document.admin.controller.php
@@ -156,7 +156,9 @@
 	        	foreach($document_srl_list as $document_srl)
 	        	{
 	        		$cache_key = 'object:'.$document_srl;
-	            	$oCacheHandler->delete($cache_key);
+                            $oCacheHandler->delete($cache_key);
+                            $cache_key_item = 'object_document_item:'.$document_srl;
+                            $oCacheHandler->delete($cache_key_item);
 	        	}
 	            $cache_object = $oCacheHandler->get('module_list_documents');
 	            foreach ($cache_object as $object){
@@ -298,6 +300,8 @@
 	        	{
 	        		$cache_key = 'object:'.$document_srl;
 	            	$oCacheHandler->delete($cache_key);
+                            $cache_key_item = 'object_document_item:'.$document_srl;
+                            $oCacheHandler->delete($cache_key_item);
 	        	}
 	            $cache_object = $oCacheHandler->get('module_list_documents');
 	            foreach ($cache_object as $object){
diff --git a/modules/document/document.controller.php b/modules/document/document.controller.php
index 7858f7611..b321c92b4 100644
--- a/modules/document/document.controller.php
+++ b/modules/document/document.controller.php
@@ -416,6 +416,9 @@ class documentController extends document {
                 $oCacheHandler->delete($cache_key_object);
             }
             $oCacheHandler->delete('module_list_documents');
+            //remove document item from cache
+            $cache_key = 'object_document_item:'.$obj->document_srl;
+            $oCacheHandler->delete($cache_key);
         }
 		
 		return $output;
@@ -500,6 +503,8 @@ class documentController extends document {
                 $oCacheHandler->delete($cache_key_object);
             }
             $oCacheHandler->delete('module_list_documents');
+            $cache_key = 'object_document_item:'.$document_srl;
+            $oCacheHandler->delete($cache_key);
         }
 
 		return $output;
diff --git a/modules/document/document.item.php b/modules/document/document.item.php
index 00c1767bb..d556f72eb 100644
--- a/modules/document/document.item.php
+++ b/modules/document/document.item.php
@@ -27,10 +27,19 @@
 
         function _loadFromDB($load_extra_vars = true) {
             if(!$this->document_srl) return;
-
-            $args->document_srl = $this->document_srl;
-            $output = executeQuery('document.getDocument', $args, $this->columnList);
-
+            
+            // cache controll
+            $oCacheHandler = &CacheHandler::getInstance('object');
+            if($oCacheHandler->isSupport()){
+                    $cache_key = 'object_document_item:'.$this->document_srl;
+                    $output = $oCacheHandler->get($cache_key);
+            }
+            if(!$output) {
+                $args->document_srl = $this->document_srl;
+                $output = executeQuery('document.getDocument', $args, $this->columnList);
+                //insert in cache
+	        if($oCacheHandler->isSupport()) $oCacheHandler->put($cache_key,$output);
+            }
             $this->setAttribute($output->data,$load_extra_vars);
         }
 
diff --git a/modules/member/member.model.php b/modules/member/member.model.php
index ed8f4906b..1b83e79f9 100644
--- a/modules/member/member.model.php
+++ b/modules/member/member.model.php
@@ -293,12 +293,23 @@
          * @brief Get a list of groups which the member_srl belongs to
          **/
         function getMemberGroups($member_srl, $site_srl = 0, $force_reload = false) {
+             // cache controll
+            $oCacheHandler = &CacheHandler::getInstance('object');
+            if($oCacheHandler->isSupport()){
+                    $cache_key = 'object_member_groups:'.$member_srl.'_'.$site_srl;
+                    $output = $oCacheHandler->get($cache_key);
+            }
             static $member_groups = array();
             if(!$member_groups[$member_srl][$site_srl] || $force_reload) {
-                $args->member_srl = $member_srl;
-                $args->site_srl = $site_srl;
-                $output = executeQuery('member.getMemberGroups', $args);
+                if(!$output){
+                    $args->member_srl = $member_srl;
+                    $args->site_srl = $site_srl;
+                    $output = executeQuery('member.getMemberGroups', $args);
+                    //insert in cache
+                    if($oCacheHandler->isSupport()) $oCacheHandler->put($cache_key,$output);
+                }
                 if(!$output->data) return array();
+                
 
                 $group_list = $output->data;
                 if(!is_array($group_list)) $group_list = array($group_list);
diff --git a/modules/module/module.controller.php b/modules/module/module.controller.php
index 2f9688d25..ccbfe37a9 100644
--- a/modules/module/module.controller.php
+++ b/modules/module/module.controller.php
@@ -52,10 +52,20 @@
             $args->called_position = $called_position;
 
             $output = executeQuery('module.insertTrigger', $args);
+            
+            //remove from cache
+            $oCacheHandler = &CacheHandler::getInstance('object');
+            if($oCacheHandler->isSupport())
+            {
+                $cache_key = 'object:'.$trigger_name.'_'.$called_position;
+                $oCacheHandler->delete($cache_key);
+            }
+            
             // Delete all the files which contain trigger information
             FileHandler::removeFilesInDir("./files/cache/triggers");
 
             return $output;
+            
         }
 
         /**
@@ -70,6 +80,15 @@
             $args->called_position = $called_position;
 
             $output = executeQuery('module.deleteTrigger', $args);
+            
+            //remove from cache
+            $oCacheHandler = &CacheHandler::getInstance('object');
+            if($oCacheHandler->isSupport())
+            {
+                $cache_key = 'object:'.$trigger_name.'_'.$called_position;
+                $oCacheHandler->delete($cache_key);
+            }
+            
             // Remove the trigger cache
             FileHandler::removeFilesInDir('./files/cache/triggers');
 
@@ -131,6 +150,13 @@
 			}
 
 			return $this->insertModuleConfig($module, $origin_config, $site_srl);
+                        //remove from cache
+                        $oCacheHandler = &CacheHandler::getInstance('object');
+                        if($oCacheHandler->isSupport())
+                        {
+                            $cache_key = 'object:module_config:module_'.$module.'_site_srl_'.$site_srl;
+                            $oCacheHandler->delete($cache_key);
+                        }
 		}
 
         /**
@@ -160,8 +186,19 @@
 
             $output = executeQuery('module.deleteModulePartConfig', $args);
             if(!$output->toBool()) return $output;
-
+            
+            //remove from cache
+            $oCacheHandler = &CacheHandler::getInstance('object');
+            if($oCacheHandler->isSupport())
+            {
+                $cache_key = 'object_module_part_config:'.$module.'_'.$module_srl;
+                $oCacheHandler->delete($cache_key);
+            }
+            
             $output = executeQuery('module.insertModulePartConfig', $args);
+            
+            
+            
             return $output;
         }
 
@@ -407,7 +444,15 @@
             $args->skin_vars = $skin_vars;
             $output = executeQuery('module.updateModuleSkinVars', $args);
             if(!$output->toBool()) return $output;
-
+            
+            //remove from cache
+            $oCacheHandler = &CacheHandler::getInstance('object');
+            if($oCacheHandler->isSupport())
+            {
+                $cache_key = 'object_module_skin_vars:'.$module_srl;
+                $oCacheHandler->delete($cache_key);
+            }
+            
             return $output;
         }
 
@@ -524,6 +569,15 @@
          **/
         function deleteModuleSkinVars($module_srl) {
             $args->module_srl = $module_srl;
+            
+            //remove from cache
+            $oCacheHandler = &CacheHandler::getInstance('object');
+            if($oCacheHandler->isSupport())
+            {
+                $cache_key = 'object_module_skin_vars:'.$module_srl;
+                $oCacheHandler->delete($cache_key);
+            }
+            
             return executeQuery('module.deleteModuleSkinVars', $args);
         }
 
@@ -550,6 +604,13 @@
         function deleteModuleExtraVars($module_srl) {
             $args->module_srl = $module_srl;
             return executeQuery('module.deleteModuleExtraVars', $args);
+            //remove from cache
+            $oCacheHandler = &CacheHandler::getInstance('object');
+            if($oCacheHandler->isSupport())
+            {
+            	$cache_key = 'object:module_extra_vars_'.$module_srl;
+            	$oCacheHandler->delete($cache_key);
+            }
         }
 
         /**
diff --git a/modules/module/module.model.php b/modules/module/module.model.php
index 944eb19da..fecba260d 100644
--- a/modules/module/module.model.php
+++ b/modules/module/module.model.php
@@ -311,9 +311,18 @@
          * @brief Get a list of all triggers on the trigger_name
          **/
         function getTriggers($trigger_name, $called_position) {
-            $args->trigger_name = $trigger_name;
-            $args->called_position = $called_position;
-            $output = executeQueryArray('module.getTriggers',$args);
+             // cache controll
+            $oCacheHandler = &CacheHandler::getInstance('object');
+            if($oCacheHandler->isSupport()){
+                    $cache_key = 'object:'.$trigger_name.'_'.$called_position;
+                    $output = $oCacheHandler->get($cache_key);
+            }
+            if(!$output) {
+                $args->trigger_name = $trigger_name;
+                $args->called_position = $called_position;
+                $output = executeQueryArray('module.getTriggers',$args);
+                if($oCacheHandler->isSupport()) $oCacheHandler->put($cache_key,$output);
+            }
             return $output->data;
         }
 
@@ -913,14 +922,28 @@
          * Global configuration is used to manage board, member and others
          **/
         function getModuleConfig($module, $site_srl = 0) {
-            if(!$GLOBALS['__ModuleConfig__'][$site_srl][$module]) {
-                $args->module = $module;
-				$args->site_srl = $site_srl;
-                $output = executeQuery('module.getModuleConfig', $args);
-                $config = unserialize($output->data->config);
-                $GLOBALS['__ModuleConfig__'][$site_srl][$module] = $config;
+            // cache controll
+            $oCacheHandler = &CacheHandler::getInstance('object');
+            if($oCacheHandler->isSupport()){
+                    $cache_key = 'object:module_config:module_'.$module.'_site_srl_'.$site_srl;
+                    $config = $oCacheHandler->get($cache_key);
             }
-            return $GLOBALS['__ModuleConfig__'][$site_srl][$module];
+            if(!$config) {
+                if(!$GLOBALS['__ModuleConfig__'][$site_srl][$module]) {
+                    $args->module = $module;
+                    $args->site_srl = $site_srl;
+                    $output = executeQuery('module.getModuleConfig', $args);
+                    $config = unserialize($output->data->config);
+                    if(!$config) $config = 'empty_module_config';
+                    //insert in cache
+                    if($oCacheHandler->isSupport()) $oCacheHandler->put($cache_key,$config);
+                    $GLOBALS['__ModuleConfig__'][$site_srl][$module] = $config;
+                }
+                return $GLOBALS['__ModuleConfig__'][$site_srl][$module];
+            } elseif($config == 'empty_module_config') {
+                return;
+            }
+            return $config;
         }
 
         /**
@@ -928,14 +951,29 @@
          * Manage mid configurations which depend on module
          **/
         function getModulePartConfig($module, $module_srl) {
-            if(!$GLOBALS['__ModulePartConfig__'][$module][$module_srl]) {
-                $args->module = $module;
-                $args->module_srl = $module_srl;
-                $output = executeQuery('module.getModulePartConfig', $args);
-                $config = unserialize($output->data->config);
-                $GLOBALS['__ModulePartConfig__'][$module][$module_srl] = $config;
+            // cache controll
+            $oCacheHandler = &CacheHandler::getInstance('object');
+            if($oCacheHandler->isSupport()){
+                    $cache_key = 'object_module_part_config:'.$module.'_'.$module_srl;
+                    $config = $oCacheHandler->get($cache_key);
             }
+            if(!$config) {
+                if(!$GLOBALS['__ModulePartConfig__'][$module][$module_srl]) {
+                    $args->module = $module;
+                    $args->module_srl = $module_srl;
+                    $output = executeQuery('module.getModulePartConfig', $args);
+                    $config = unserialize($output->data->config);
+                    if(!$config) $config = 'empty_module_config';
+                    //insert in cache
+                    if($oCacheHandler->isSupport()) $oCacheHandler->put($cache_key,$config);
+                    $GLOBALS['__ModulePartConfig__'][$module][$module_srl] = $config;
+                }
             return $GLOBALS['__ModulePartConfig__'][$module][$module_srl];
+            } elseif($config == 'empty_module_config') {
+                return;
+            }
+            return $config;
+            
         }
 
         /**
@@ -1185,15 +1223,28 @@
          * Extra information, not in the modules table
          **/
         function getModuleExtraVars($module_srl) {
-            if(is_array($module_srl)) $module_srl = implode(',',$module_srl);
-            $args->module_srl = $module_srl;
-            $output = executeQueryArray('module.getModuleExtraVars',$args);
-            if(!$output->toBool() || !$output->data) return;
-
-            $vars = array();
-            foreach($output->data as $key => $val) {
-                if(in_array($val->name, array('mid','module')) || $val->value == 'Array') continue;
-                $vars[$val->module_srl]->{$val->name} = $val->value;
+             if(is_array($module_srl)) $module_srl = implode(',',$module_srl);
+            // cache controll
+            $oCacheHandler = &CacheHandler::getInstance('object');
+            if($oCacheHandler->isSupport()){
+                    $cache_key = 'object:module_extra_vars_'.$module_srl;
+                    $vars = $oCacheHandler->get($cache_key);
+            }
+            if(!$vars) {
+                $args->module_srl = $module_srl;
+                $output = executeQueryArray('module.getModuleExtraVars',$args);
+                if(!$output->toBool() || !$output->data) {
+                    if($oCacheHandler->isSupport()) $oCacheHandler->put($cache_key,'empty_extra_vars');
+                    return;
+                }
+                $vars = array();
+                foreach($output->data as $key => $val) {
+                    if(in_array($val->name, array('mid','module')) || $val->value == 'Array') continue;
+                    $vars[$val->module_srl]->{$val->name} = $val->value;
+                }
+                if($oCacheHandler->isSupport()) $oCacheHandler->put($cache_key,$vars);
+            } elseif($vars == 'empty_extra_vars') {
+                return;
             }
             return $vars;
         }
@@ -1216,9 +1267,18 @@
          **/
         function syncSkinInfoToModuleInfo(&$module_info) {
             if(!$module_info->module_srl) return;
-
-            $args->module_srl = $module_info->module_srl;
-            $output = executeQueryArray('module.getModuleSkinVars',$args);
+            // cache controll
+            $oCacheHandler = &CacheHandler::getInstance('object');
+            if($oCacheHandler->isSupport()){
+                    $cache_key = 'object_module_skin_vars:'.$module_info->module_srl;
+                    $output = $oCacheHandler->get($cache_key);
+            }
+            if(!$output) {
+                $args->module_srl = $module_info->module_srl;
+                $output = executeQueryArray('module.getModuleSkinVars',$args);
+                //insert in cache
+	        if($oCacheHandler->isSupport()) $oCacheHandler->put($cache_key,$output);
+            }
             if(!$output->toBool() || !$output->data) return;
 
             foreach($output->data as $val) {