diff --git a/Admin/Installer.php b/Admin/Installer.php
index f070ec8..00f75fe 100644
--- a/Admin/Installer.php
+++ b/Admin/Installer.php
@@ -43,6 +43,97 @@ class Installer extends InstallerAbstract
 
         switch ($dbPool->get('core')->getType()) {
             case DatabaseType::MYSQL:
+                $dbPool->get('core')->con->prepare(
+                    'CREATE TABLE if NOT EXISTS `' . $dbPool->get('core')->prefix . 'workflow` (
+                            `workflow_id` int(11) NOT NULL AUTO_INCREMENT,
+                            `workflow_name` varchar(50) NOT NULL,
+                            `workflow_status` int(11) NOT NULL,
+                            `workflow_desc` varchar(100) DEFAULT NULL,
+                            `workflow_created` datetime DEFAULT NULL,
+                            `workflow_created_by` int(11) DEFAULT NULL,
+                            PRIMARY KEY (`workflow_id`),
+                            KEY `workflow_created_by` (`workflow_created_by`)
+                        )ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=1;'
+                )->execute();
+
+                $dbPool->get('core')->con->prepare(
+                    'ALTER TABLE `' . $dbPool->get('core')->prefix . 'workflow`
+                            ADD CONSTRAINT `' . $dbPool->get('core')->prefix . 'workflow_ibfk_1` FOREIGN KEY (`workflow_created_by`) REFERENCES `' . $dbPool->get('core')->prefix . 'account` (`account_id`);'
+                )->execute();
+
+                $dbPool->get('core')->con->prepare(
+                    'CREATE TABLE if NOT EXISTS `' . $dbPool->get('core')->prefix . 'workflow_media` (
+                            `workflow_media_id` int(11) NOT NULL AUTO_INCREMENT,
+                            `workflow_media_media` int(11) NOT NULL,
+                            `workflow_media_workflow` int(11) NOT NULL,
+                            `workflow_media_type` int(3) DEFAULT NULL,
+                            PRIMARY KEY (`workflow_media_id`),
+                            KEY `workflow_media_media` (`workflow_media_media`),
+                            KEY `workflow_media_workflow` (`workflow_media_workflow`)
+                        )ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=1;'
+                )->execute();
+
+                $dbPool->get('core')->con->prepare(
+                    'ALTER TABLE `' . $dbPool->get('core')->prefix . 'workflow_media`
+                            ADD CONSTRAINT `' . $dbPool->get('core')->prefix . 'workflow_media_ibfk_1` FOREIGN KEY (`workflow_media_media`) REFERENCES `' . $dbPool->get('core')->prefix . 'media` (`media_id`),
+                            ADD CONSTRAINT `' . $dbPool->get('core')->prefix . 'workflow_media_ibfk_2` FOREIGN KEY (`workflow_media_workflow`) REFERENCES `' . $dbPool->get('core')->prefix . 'workflow` (`workflow_id`);'
+                )->execute();
+
+                $dbPool->get('core')->con->prepare(
+                    'CREATE TABLE if NOT EXISTS `' . $dbPool->get('core')->prefix . 'workflow_element` (
+                            `workflow_element_id` int(11) NOT NULL AUTO_INCREMENT,
+                            `workflow_element_name` varchar(50) NOT NULL,
+                            `workflow_element_status` int(11) NOT NULL,
+                            `workflow_element_data` text NOT NULL,
+                            `workflow_element_desc` varchar(100) DEFAULT NULL,
+                            `workflow_element_created` datetime DEFAULT NULL,
+                            `workflow_element_created_by` int(11) DEFAULT NULL,
+                            `workflow_element_workflow` int(11) DEFAULT NULL,
+                            PRIMARY KEY (`workflow_element_id`),
+                            KEY `workflow_element_created_by` (`workflow_element_created_by`),
+                            KEY `workflow_element_workflow` (`workflow_element_workflow`)
+                        )ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=1;'
+                )->execute();
+
+                $dbPool->get('core')->con->prepare(
+                    'ALTER TABLE `' . $dbPool->get('core')->prefix . 'workflow_element`
+                            ADD CONSTRAINT `' . $dbPool->get('core')->prefix . 'workflow_element_ibfk_1` FOREIGN KEY (`workflow_element_created_by`) REFERENCES `' . $dbPool->get('core')->prefix . 'account` (`account_id`),
+                            ADD CONSTRAINT `' . $dbPool->get('core')->prefix . 'workflow_element_ibfk_2` FOREIGN KEY (`workflow_element_workflow`) REFERENCES `' . $dbPool->get('core')->prefix . 'workflow` (`workflow_id`);'
+                )->execute();
+
+                $dbPool->get('core')->con->prepare(
+                    'CREATE TABLE if NOT EXISTS `' . $dbPool->get('core')->prefix . 'workflow_element_media` (
+                            `workflow_element_media_id` int(11) NOT NULL AUTO_INCREMENT,
+                            `workflow_element_media_media` int(11) NOT NULL,
+                            `workflow_element_media_workflow_element` int(11) NOT NULL,
+                            PRIMARY KEY (`workflow_element_media_id`),
+                            KEY `workflow_element_media_media` (`workflow_element_media_media`),
+                            KEY `workflow_element_media_workflow_element` (`workflow_element_media_workflow_element`)
+                        )ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=1;'
+                )->execute();
+
+                $dbPool->get('core')->con->prepare(
+                    'ALTER TABLE `' . $dbPool->get('core')->prefix . 'workflow_element_media`
+                            ADD CONSTRAINT `' . $dbPool->get('core')->prefix . 'workflow_element_media_ibfk_1` FOREIGN KEY (`workflow_element_media_media`) REFERENCES `' . $dbPool->get('core')->prefix . 'media` (`media_id`),
+                            ADD CONSTRAINT `' . $dbPool->get('core')->prefix . 'workflow_element_media_ibfk_2` FOREIGN KEY (`workflow_element_media_workflow_element`) REFERENCES `' . $dbPool->get('core')->prefix . 'workflow_element` (`workflow_element_id`);'
+                )->execute();
+
+                    $dbPool->get('core')->con->prepare(
+                        'CREATE TABLE if NOT EXISTS `' . $dbPool->get('core')->prefix . 'workflow_element_task` (
+                            `workflow_element_task_id` int(11) NOT NULL AUTO_INCREMENT,
+                            `workflow_element_task_task` int(11) NOT NULL,
+                            `workflow_element_task_workflow_element` int(11) NOT NULL,
+                            PRIMARY KEY (`workflow_element_task_id`),
+                            KEY `workflow_element_task_task` (`workflow_element_task_task`),
+                            KEY `workflow_element_task_workflow_element` (`workflow_element_task_workflow_element`)
+                        )ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=1;'
+                    )->execute();
+
+                $dbPool->get('core')->con->prepare(
+                    'ALTER TABLE `' . $dbPool->get('core')->prefix . 'workflow_element_task`
+                            ADD CONSTRAINT `' . $dbPool->get('core')->prefix . 'workflow_element_task_ibfk_1` FOREIGN KEY (`workflow_element_task_task`) REFERENCES `' . $dbPool->get('core')->prefix . 'task` (`media_id`),
+                            ADD CONSTRAINT `' . $dbPool->get('core')->prefix . 'workflow_element_task_ibfk_2` FOREIGN KEY (`workflow_element_task_workflow_element`) REFERENCES `' . $dbPool->get('core')->prefix . 'workflow_element` (`workflow_element_id`);'
+                )->execute();
                 break;
         }
     }