diff --git a/php/model/DatabaseUserManager.php b/php/model/DatabaseUserManager.php
new file mode 100644
index 0000000..cd27d99
--- /dev/null
+++ b/php/model/DatabaseUserManager.php
@@ -0,0 +1,26 @@
+<?php
+require_once "UserManagerDAO.php";
+
+class DatabaseUserManager implements UserManagerDAO {
+
+    public function findUser($email)
+    {
+        // TODO: Implement findUser() method.
+    }
+
+    public function addUser($email, $vorname, $nachname, $password)
+    {
+        // TODO: Implement addUser() method.
+    }
+
+    public function updateUser($oldEmail, $newEmail, $vorname, $nachname, $password = null)
+    {
+        // TODO: Implement updateUser() method.
+    }
+
+    public function deleteUser($email)
+    {
+        // TODO: Implement deleteUser() method.
+    }
+
+}
\ No newline at end of file
diff --git a/php/model/LocalUserManager.php b/php/model/LocalUserManager.php
index 8ef97eb..dceb1ee 100644
--- a/php/model/LocalUserManager.php
+++ b/php/model/LocalUserManager.php
@@ -6,6 +6,10 @@ class LocalUserManager implements UserManagerDAO {
 
     private string $file = "data/users.json";
 
+    public static function getInstance(){
+        // TODO: implement the getIsntance method.
+    }
+
     /**
      * Lädt alle Benutzer aus der JSON-Datei.
      *
diff --git a/php/model/UserManager.php b/php/model/UserManager.php
index 9b2c6b1..1ff7b28 100644
--- a/php/model/UserManager.php
+++ b/php/model/UserManager.php
@@ -1,3 +1,10 @@
 <?php
-// TODO: implement this.
-// dummy-user anlegen: - `max.mustermann, test123, mustermann@web.de`
\ No newline at end of file
+require_once "UserManagerDAO.php";
+
+class UserManager extends LocalUserManager{
+
+    public static function getInstance(){
+        // TODO: implement this.
+        // TODO: dummy-user anlegen: - `max.mustermann, test123, mustermann@web.de` (analog zu ArticleManager)
+    }
+}
\ No newline at end of file