diff --git a/lib/classes/User/Interface.php b/lib/classes/User/Interface.php
deleted file mode 100644
index 6ab58602b4..0000000000
--- a/lib/classes/User/Interface.php
+++ /dev/null
@@ -1,124 +0,0 @@
-<?php
-
-/*
- * This file is part of Phraseanet
- *
- * (c) 2005-2014 Alchemy
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-use Alchemy\Phrasea\Application;
-
-interface User_Interface
-{
-
-    public function get_id();
-
-    public function __construct($id, Application $app);
-
-    public function set_password($pasword);
-
-    public function set_email($email);
-
-    public function get_country();
-
-    public function set_mail_notifications($boolean);
-
-    public function set_firstname($firstname);
-
-    public function set_lastname($lastname);
-
-    public function set_address($address);
-
-    public function set_city($city);
-
-    public function set_geonameid($geonameid);
-
-    public function set_zip($zip);
-
-    public function set_gender($gender);
-
-    public function set_tel($tel);
-
-    public function set_fax($fax);
-
-    public function set_job($job);
-
-    public function set_position($position);
-
-    public function set_company($company);
-
-    public function delete();
-
-    public function get_mail_notifications();
-
-    public function load($id);
-
-    public function set_last_template(User_Interface $template);
-
-    public function set_mail_locked($boolean);
-
-    public function get_mail_locked();
-
-    public function is_guest();
-
-    public function get_login();
-
-    public function get_email();
-
-    public function get_firstname();
-
-    public function get_lastname();
-
-    public function get_company();
-
-    public function get_tel();
-
-    public function get_fax();
-
-    public function get_job();
-
-    public function get_position();
-
-    public function get_zipcode();
-
-    public function get_city();
-
-    public function get_address();
-
-    public function get_gender();
-
-    public function get_geonameid();
-
-    public function get_applied_template();
-
-    public function get_creation_date();
-
-    public function get_notifications_preference(Application $app, $notification_id);
-
-    public function set_notification_preference(Application $app, $notification_id, $value);
-
-    public function getDisplayName();
-
-    public function get_nonce();
-
-    public function setPrefs($prop, $value);
-
-    public function getPrefs($prop);
-
-    public static function get_sys_admins(Application $app);
-
-    public static function set_sys_admins(Application $app, $admins);
-
-    public function get_locale();
-
-    public static function create(Application $app, $login, $password, $email, $admin, $invite = false);
-
-    public static function getInstance($id, Application $app);
-
-    public static function get_usr_id_from_login(Application $app, $login);
-
-    public static function get_usr_id_from_email(Application $app, $email);
-}