diff --git a/includes/engelsystem_provider.php b/includes/engelsystem_provider.php
index fb3c0f18..595af9f9 100644
--- a/includes/engelsystem_provider.php
+++ b/includes/engelsystem_provider.php
@@ -26,6 +26,7 @@ require_once realpath(__DIR__ . '/../includes/model/UserAngelTypes_model.php');
 require_once realpath(__DIR__ . '/../includes/model/UserDriverLicenses_model.php');
 require_once realpath(__DIR__ . '/../includes/model/UserGroups_model.php');
 require_once realpath(__DIR__ . '/../includes/model/User_model.php');
+require_once realpath(__DIR__ . '/../includes/model/ValidationResult.php');
 
 require_once realpath(__DIR__ . '/../includes/view/AngelTypes_view.php');
 require_once realpath(__DIR__ . '/../includes/view/EventConfig_view.php');
diff --git a/includes/model/AngelType_model.php b/includes/model/AngelType_model.php
index 86d64504..34da4db7 100644
--- a/includes/model/AngelType_model.php
+++ b/includes/model/AngelType_model.php
@@ -1,4 +1,5 @@
 <?php
+use Engelsystem\ValidationResult;
 
 /**
  * Returns an array containing the basic attributes of angeltypes.
diff --git a/includes/model/User_model.php b/includes/model/User_model.php
index c1376abd..13695821 100644
--- a/includes/model/User_model.php
+++ b/includes/model/User_model.php
@@ -1,4 +1,5 @@
 <?php
+use Engelsystem\ValidationResult;
 
 /**
  * User model
diff --git a/includes/model/ValidationResult.php b/includes/model/ValidationResult.php
new file mode 100644
index 00000000..0fc24161
--- /dev/null
+++ b/includes/model/ValidationResult.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Engelsystem;
+
+/**
+ * BO that represents the result of an entity attribute validation.
+ * It contains the validated value and a bool for validation success.
+ */
+class ValidationResult {
+
+  private $valid;
+
+  private $value;
+
+  /**
+   * Constructor.
+   *
+   * @param boolean $valid
+   *          Is the value valid?
+   * @param * $value
+   *          The validated value
+   */
+  public function __construct($valid, $value) {
+    $this->valid = $valid;
+    $this->value = $value;
+  }
+
+  /**
+   * Is the value valid?
+   */
+  public function isValid() {
+    return $this->valid;
+  }
+
+  /**
+   * The parsed/validated value.
+   */
+  public function getValue() {
+    return $this->value;
+  }
+}
+?>
\ No newline at end of file
diff --git a/includes/sys_page.php b/includes/sys_page.php
index ad4d15de..8eb32962 100644
--- a/includes/sys_page.php
+++ b/includes/sys_page.php
@@ -1,4 +1,5 @@
 <?php
+use Engelsystem\ValidationResult;
 
 /**
  * Provide page/request helper functions
@@ -187,38 +188,4 @@ function check_email($email) {
   return (bool) filter_var($email, FILTER_VALIDATE_EMAIL);
 }
 
-class ValidationResult {
-
-  private $valid;
-
-  private $value;
-
-  /**
-   * Constructor.
-   *
-   * @param boolean $valid
-   *          Is the value valid?
-   * @param * $value
-   *          The validated value
-   */
-  public function ValidationResult($valid, $value) {
-    $this->valid = $valid;
-    $this->value = $value;
-  }
-
-  /**
-   * Is the value valid?
-   */
-  public function isValid() {
-    return $this->valid;
-  }
-
-  /**
-   * The parsed/validated value.
-   */
-  public function getValue() {
-    return $this->value;
-  }
-}
-
 ?>