diff --git a/filemanager/inc/class.filemanager_collab_bo.inc.php b/filemanager/inc/class.filemanager_collab_bo.inc.php
new file mode 100644
index 0000000000..203884998c
--- /dev/null
+++ b/filemanager/inc/class.filemanager_collab_bo.inc.php
@@ -0,0 +1,188 @@
+<?php
+/**
+ * Filemanager collab session Class
+ *
+ * @link http://www.egroupware.org
+ * @package filemanager
+ * @author Hadi Nategh <hn-AT-stylite.de>
+ * @copyright (c) 2016 by Stylite AG
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @version $Id$
+ */
+
+use EGroupware\Api;
+
+/**
+ * Storage Object of the filemanager
+ */
+class filemanager_collab_bo
+{
+
+	/**
+	 * session table name
+	 */
+	const SESSION_TABLE = 'egw_collab_session';
+
+	/**
+	 * member table name
+	 */
+	const MEMBER_TABLE = 'egw_collab_member';
+
+	/**
+	 * op table name
+	 */
+	const OP_TABLE = 'egw_collab_op';
+
+	/**
+	 * prefix value used for naming fields in DB
+	 */
+	const DB_FILEDS_PREFIX = 'collab_';
+
+	/**
+	 * Database object
+	 * @var Api\Db
+	 */
+	protected $db;
+
+	public function __construct()
+	{
+		$this->db = $GLOBALS['egw']->db;
+	}
+
+	/**
+	 * Init session check for existing session or create one there's none
+	 *
+	 * @param string $es_id session id
+	 *
+	 * @return array returns an array contains of mapped session data
+	 */
+	protected function initSession ($es_id)
+	{
+		$session = $this->db->select(self::SESSION_TABLE,'*', array('collab_es_id' => $es_id));
+		$full_name = $GLOBALS['egw_info']['user']['account_fullname'];
+		$color = $GLOBALS['egw_info']['user']['prefs']['collab_user_color'];
+		$user_id = $GLOBALS['egw_info']['user']['account_id'];
+
+
+		if (!($result = self::db2id($session->fields)) && $es_id)
+		{
+			$result = self::db2id($this->SESSION_add2Db($es_id));
+		}
+
+		$this->MEMBER_add2Db($es_id, $user_id, $color);
+
+		$member_id = $this->MEMBER_getLastMember();
+
+		$this->OP_addMember($es_id, $member_id, $full_name, $user_id, $color);
+	}
+
+	/**
+	 * Add session data with provided session id into DB
+	 *
+	 * @param string $es_id session id
+	 *
+	 * @return array returns an array contains of session data
+	 */
+	protected function SESSION_add2Db ($es_id)
+	{
+		if ($es_id)
+		{
+			$data = array (
+				'collab_es_id' => $es_id,
+				'collab_genesis_url' => '',
+				'collab_genesis_hash' => '',
+				'account_id' => $GLOBALS['egw_info']['user']['account_id']
+			);
+
+			$this->db->insert(self::SESSION_TABLE, $data,false,__LINE__, __FILE__,'filemanager');
+		}
+		return $data;
+	}
+
+
+	/**
+	 * OP addMember function is backend equivalent to addMember from frontend
+	 *
+	 * @param string $es_id session id
+	 * @param string $member_id
+	 * @param string $full_name
+	 * @param string $user_id
+	 * @param string $color
+	 * @param string $imageUrl
+	 */
+	protected function OP_addMember($es_id, $member_id, $full_name, $user_id, $color, $imageUrl)
+	{
+		$date = new DateTime();
+		$op = array(
+			'optype' => 'AddMember',
+			'memberid' => (string) $member_id,
+			'timestamp' => $date->getTimestamp(),
+			'setProperties' => array(
+				'fullName' => $full_name,
+				'color' => $color,
+				'imageUrl' => $imageUrl,
+				'uid' => $user_id,
+			)
+		);
+		$this->OP_add2Db($op, $es_id);
+	}
+
+	/**
+	 * Insert op data into OP table in database
+	 *
+	 * @param array $op op data
+	 * @param string $es_id session id
+	 */
+	protected function OP_add2Db ($op, $es_id)
+	{
+		$data = array (
+			'collab_es_id' => $es_id,
+			'collab_member' => $op['member_id'],
+			'collab_optype' => $op['optype'],
+			'collab_opspec' => json_encode($op)
+		);
+		$this->db->insert(self::OP_TABLE, $data,false,__LINE__, __FILE__,'filemanager');
+	}
+
+	/**
+	 * Add member data into member table in database
+	 *
+	 * @param type $es_id session id
+	 * @param type $user_id user id
+	 * @param type $color user color code
+	 */
+	protected function MEMBER_add2Db ($es_id, $user_id, $color)
+	{
+		$data = array (
+			'collab_es_id' => $es_id,
+			'collab_uid' => $user_id,
+			'collab_color' => $color
+		);
+		$this->db->insert(self::MEMBER_TABLE, $data,false,__LINE__, __FILE__,'filemanager');
+	}
+
+	/**
+	 * Utility function to map DB fields to ids
+	 *
+	 * @param array $data
+	 * @return array|boolean returns an array contains of mapped DB data, otherwise false
+	 */
+	protected static function db2id($data)
+	{
+		if (!is_array($data)) return false;
+		$keys = array_keys($data);
+		array_walk($keys,function (&$key){$key = str_replace(self::DB_FILEDS_PREFIX, '', $key);});
+		return array_combine ($keys, $data);
+	}
+
+	/**
+	 * Return last member id from member table in db
+	 *
+	 * @return int returns the last member id or if it's not exist returns 0
+	 */
+	protected function MEMBER_getLastMember()
+	{
+		$last_row = $this->db->select(self::MEMBER_TABLE, 'collab_member_id','',__LINE__,__FILE__,false,"ORDER BY `collab_member_id` DESC LIMIT 1;");
+		return $last_row->fields? $last_row->fields['collab_member_id']: 0;
+	}
+}
\ No newline at end of file
diff --git a/filemanager/setup/tables_current.inc.php b/filemanager/setup/tables_current.inc.php
new file mode 100644
index 0000000000..05990fef8d
--- /dev/null
+++ b/filemanager/setup/tables_current.inc.php
@@ -0,0 +1,57 @@
+<?php
+/**
+ * EGroupware - Filemanager - Setup
+ *
+ * @link http://www.egroupware.org
+ * @author Hadi Nategh <hn-AT-stylite.de>
+ * @package filemanager
+ * @subpackage setup
+ * @copyright (c) 2016 by Stylite AG
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @version $Id$
+ */
+
+$phpgw_baseline = array(
+	'egw_collab_member' => array(
+		'fd' => array(
+			'collab_member_id' => array('type' => 'auto','nullable' => False, 'comment' => 'Unique per user and session'),
+			'collab_es_id' => array('type' => 'varchar','precision' => '64','nullable' => False, 'comment' => 'Related editing session id'),
+			'collab_uid' => array('type' => 'varchar','precision' => '64'),
+			'collab_color' => array('type' => 'varchar','precision' => '32'),
+			'collab_last_activity' => array('type' => 'int','precision' => '4'),
+			'collab_is_guest' => array('type' => 'int','precision' => '2','default' => '0','nullable' => False),
+			'collab_token' => array('type' => 'varchar','precision' => '32'),
+			'collab_status' => array('type' => 'int','precision' => '2','default' => '1','nullable' => False)
+		),
+		'pk' => array('collab_member_id'),
+		'fk' => array(),
+		'ix' => array(),
+		'uc' => array()
+	),
+	'egw_collab_op' => array(
+		'fd' => array(
+			'collab_seq' => array('type' => 'auto','nullable' => False, 'comment' => 'Sequence number'),
+			'collab_es_id' => array('type' => 'varchar','precision' => '64','nullable' => False, 'comment' => 'Editing session id'),
+			'collab_member' => array('type' => 'int','precision' => '4','default' => '1','nullable' => False, 'comment' => 'User and time specific'),
+			'collab_optype' => array('type' => 'varchar','precision' => '64', 'comment' => 'Operation type'),
+			'collab_opspec' => array('type' => 'longtext', 'comment' => 'json-string')
+		),
+		'pk' => array('collab_seq'),
+		'fk' => array(),
+		'ix' => array(),
+		'uc' => array()
+	),
+	'egw_collab_session' => array(
+		'fd' => array(
+			'collab_es_id' => array('type' => 'varchar','precision' => '64','nullable' => False, 'comment' => 'Editing session id'),
+			'collab_genesis_url' => array('type' => 'varchar','precision' => '512', 'comment' => 'Relative to owner documents storage /template.odt'),
+			'collab_genesis_hash' => array('type' => 'varchar','precision' => '128','nullable' => False, 'comment' => 'To be sure the genesis did not change'),
+			'collab_file_id' => array('type' => 'varchar','precision' => '512', 'comment' => 'Relative to storage e.g. /template.odt'),
+			'account_id' => array('type' => 'int','meta' => 'user','precision' => '4','nullable' => False, 'comment' => 'user who created the session')
+		),
+		'pk' => array('collab_es_id'),
+		'fk' => array(),
+		'ix' => array(),
+		'uc' => array()
+	)
+);