diff --git a/Controller/ApiController.php b/Controller/ApiController.php
index 584881e..fd52ca0 100755
--- a/Controller/ApiController.php
+++ b/Controller/ApiController.php
@@ -82,7 +82,7 @@ final class ApiController extends Controller
     public function apiSurveyTemplateCreate(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : void
     {
         if (!empty($val = $this->validateSurveyTemplateCreate($request))) {
-            $response->set($request->uri->__toString(), new FormValidation($val));
+            $response->data[$request->uri->__toString()] = new FormValidation($val);
             $response->header->status = RequestStatusCode::R_400;
 
             return;
@@ -141,7 +141,7 @@ final class ApiController extends Controller
             }
         }
 
-        if (!empty($uploadedFiles = $request->getFiles())) {
+        if (!empty($uploadedFiles = $request->files)) {
             $uploaded = $this->app->moduleManager->get('Media')->uploadFiles(
                 [],
                 [],
@@ -205,7 +205,7 @@ final class ApiController extends Controller
     public function apiSurveyTemplateElementCreate(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : void
     {
         if (!empty($val = $this->validateSurveyTemplateElementCreate($request))) {
-            $response->set($request->uri->__toString(), new FormValidation($val));
+            $response->data[$request->uri->__toString()] = new FormValidation($val);
             $response->header->status = RequestStatusCode::R_400;
 
             return;
@@ -293,7 +293,7 @@ final class ApiController extends Controller
     public function apiSurveyAnswerCreate(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : void
     {
         if (!empty($val = $this->validateSurveyAnswerCreate($request))) {
-            $response->set($request->uri->__toString(), new FormValidation($val));
+            $response->data[$request->uri->__toString()] = new FormValidation($val);
             $response->header->status = RequestStatusCode::R_400;
 
             return;
diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index c8eb24e..2abc766 100755
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -47,7 +47,7 @@ final class BackendController extends Controller
      */
     public function setUpBackend(RequestAbstract $request, ResponseAbstract $response, mixed $data = null) : void
     {
-        $head = $response->get('Content')->getData('head');
+        $head = $response->get('Content')->head;
         $head->addAsset(AssetType::CSS, '/Modules/Surveys/Theme/Backend/styles.css?v=1.0.0');
     }
 
@@ -67,21 +67,21 @@ final class BackendController extends Controller
     {
         $view = new View($this->app->l11nManager, $request, $response);
         $view->setTemplate('/Modules/Surveys/Theme/Backend/surveys-list');
-        $view->addData('nav', $this->app->moduleManager->get('Navigation')->createNavigationMid(1000801001, $request, $response));
+        $view->data['nav'] = $this->app->moduleManager->get('Navigation')->createNavigationMid(1000801001, $request, $response);
 
         $path    = \str_replace('+', ' ', (string) ($request->getData('path') ?? '/'));
         $surveys = SurveyTemplateMapper::getByVirtualPath($path)
-            ->where('tags/title/language', $response->getLanguage())
-            ->where('l11n/language', $response->getLanguage())
+            ->where('tags/title/language', $response->header->l11n->language)
+            ->where('l11n/language', $response->header->l11n->language)
             ->execute();
 
         list($collection, $parent) = CollectionMapper::getCollectionsByPath($path);
 
-        $view->addData('parent', $parent);
-        $view->addData('collections', $collection);
-        $view->addData('path', $path);
-        $view->addData('surveys', $surveys);
-        $view->addData('account', $this->app->accountManager->get($request->header->account));
+        $view->data['parent'] = $parent;
+        $view->data['collections'] = $collection;
+        $view->data['path'] = $path;
+        $view->data['surveys'] = $surveys;
+        $view->data['account'] = $this->app->accountManager->get($request->header->account);
 
         return $view;
     }
@@ -102,7 +102,7 @@ final class BackendController extends Controller
     {
         $view = new View($this->app->l11nManager, $request, $response);
         $view->setTemplate('/Modules/Surveys/Theme/Backend/surveys-create');
-        $view->addData('nav', $this->app->moduleManager->get('Navigation')->createNavigationMid(1000801001, $request, $response));
+        $view->data['nav'] = $this->app->moduleManager->get('Navigation')->createNavigationMid(1000801001, $request, $response);
 
         return $view;
     }
@@ -123,7 +123,7 @@ final class BackendController extends Controller
     {
         $view = new View($this->app->l11nManager, $request, $response);
         $view->setTemplate('/Modules/Surveys/Theme/Backend/surveys-create');
-        $view->addData('nav', $this->app->moduleManager->get('Navigation')->createNavigationMid(1000801001, $request, $response));
+        $view->data['nav'] = $this->app->moduleManager->get('Navigation')->createNavigationMid(1000801001, $request, $response);
 
         /** @var \Modules\Surveys\Models\SurveyTemplate $survey */
         $survey = SurveyTemplateMapper::get()
@@ -136,13 +136,13 @@ final class BackendController extends Controller
             ->with('tags')
             ->with('tags/title')
             ->where('id', $request->getData('id'))
-            ->where('tags/title/language', $response->getLanguage())
-            ->where('l11n/language', $response->getLanguage())
-            ->where('elements/l11n/language', $response->getLanguage())
-            ->where('elements/labels/language', $response->getLanguage())
+            ->where('tags/title/language', $response->header->l11n->language)
+            ->where('l11n/language', $response->header->l11n->language)
+            ->where('elements/l11n/language', $response->header->l11n->language)
+            ->where('elements/labels/language', $response->header->l11n->language)
             ->execute();
 
-        $view->addData('survey', $survey);
+        $view->data['survey'] = $survey;
 
         return $view;
     }
@@ -163,7 +163,7 @@ final class BackendController extends Controller
     {
         $view = new View($this->app->l11nManager, $request, $response);
         $view->setTemplate('/Modules/Surveys/Theme/Backend/surveys-survey');
-        $view->addData('nav', $this->app->moduleManager->get('Navigation')->createNavigationMid(1000801001, $request, $response));
+        $view->data['nav'] = $this->app->moduleManager->get('Navigation')->createNavigationMid(1000801001, $request, $response);
 
         return $view;
     }
diff --git a/Models/SurveyTemplateElementL11n.php b/Models/SurveyTemplateElementL11n.php
index ceea284..df1de7d 100755
--- a/Models/SurveyTemplateElementL11n.php
+++ b/Models/SurveyTemplateElementL11n.php
@@ -92,18 +92,6 @@ class SurveyTemplateElementL11n implements \JsonSerializable
         $this->language         = $language;
     }
 
-    /**
-     * Get id
-     *
-     * @return int
-     *
-     * @since 1.0.0
-     */
-    public function getId() : int
-    {
-        return $this->id;
-    }
-
     /**
      * Get language
      *
diff --git a/Models/SurveyTemplateL11n.php b/Models/SurveyTemplateL11n.php
index 665dff9..f946540 100755
--- a/Models/SurveyTemplateL11n.php
+++ b/Models/SurveyTemplateL11n.php
@@ -108,18 +108,6 @@ class SurveyTemplateL11n implements \JsonSerializable
         $this->language         = $language;
     }
 
-    /**
-     * Get id
-     *
-     * @return int
-     *
-     * @since 1.0.0
-     */
-    public function getId() : int
-    {
-        return $this->id;
-    }
-
     /**
      * Get language
      *
diff --git a/Models/SurveyTemplateLabelL11n.php b/Models/SurveyTemplateLabelL11n.php
index e9001a5..047095b 100755
--- a/Models/SurveyTemplateLabelL11n.php
+++ b/Models/SurveyTemplateLabelL11n.php
@@ -80,18 +80,6 @@ class SurveyTemplateLabelL11n implements \JsonSerializable
         $this->language = $language;
     }
 
-    /**
-     * Get id
-     *
-     * @return int
-     *
-     * @since 1.0.0
-     */
-    public function getId() : int
-    {
-        return $this->id;
-    }
-
     /**
      * Get language
      *
diff --git a/Theme/Backend/surveys-create.tpl.php b/Theme/Backend/surveys-create.tpl.php
index b857278..89380f2 100755
--- a/Theme/Backend/surveys-create.tpl.php
+++ b/Theme/Backend/surveys-create.tpl.php
@@ -15,9 +15,9 @@ declare(strict_types=1);
 use Modules\Surveys\Models\SurveyElementType;
 
 /** @var null|Modules\Surveys\Models\SurveyTemplate $survey */
-$survey = $this->getData('survey');
+$survey = $this->data['survey'];
 
-echo $this->getData('nav')->render(); ?>
+echo $this->data['nav']->render(); ?>
 
 <div class="tabview tab-2">
     <div class="box wf-100 col-xs-12">
diff --git a/Theme/Backend/surveys-list.tpl.php b/Theme/Backend/surveys-list.tpl.php
index d17098c..c3b6ab2 100755
--- a/Theme/Backend/surveys-list.tpl.php
+++ b/Theme/Backend/surveys-list.tpl.php
@@ -18,21 +18,21 @@ use phpOMS\Uri\UriFactory;
  * @var \phpOMS\Views\View               $this
  * @var \Modules\Surveys\Models\Survey[] $surveys
  */
-$surveys = $this->getData('surveys') ?? [];
+$surveys = $this->data['surveys'] ?? [];
 
 /** @var \Modules\Admin\Models\Account $account */
-$account = $this->getData('account');
+$account = $this->data['account'];
 
 $accountDir = $account->id . ' ' . $account->login;
 
 /** @var \Modules\Media\Models\Collection[] */
-$collections = $this->getData('collections');
+$collections = $this->data['collections'];
 $mediaPath   = \urldecode($this->getData('path') ?? '/');
 
 $previous = empty($surveys) ? '{/base}/survey/list' : '{/base}/survey/list?{?}&id=' . \reset($surveys)->id . '&ptype=p';
 $next     = empty($surveys) ? '{/base}/survey/list' : '{/base}/survey/list?{?}&id=' . \end($surveys)->id . '&ptype=n';
 
-echo $this->getData('nav')->render(); ?>
+echo $this->data['nav']->render(); ?>
 
 <div class="row">
     <div class="col-xs-12">
diff --git a/tests/Models/SurveyTemplateElementL11nTest.php b/tests/Models/SurveyTemplateElementL11nTest.php
index 67f0538..30fb6af 100755
--- a/tests/Models/SurveyTemplateElementL11nTest.php
+++ b/tests/Models/SurveyTemplateElementL11nTest.php
@@ -42,7 +42,7 @@ final class SurveyTemplateElementL11nTest extends \PHPUnit\Framework\TestCase
         self::assertEquals('', $this->l11n->text);
         self::assertEquals('', $this->l11n->description);
         self::assertEquals('', $this->l11n->descriptionPlain);
-        self::assertEquals(ISO639x1Enum::_EN, $this->l11n->getLanguage());
+        self::assertEquals(ISO639x1Enum::_EN, $this->l11n->language);
     }
 
     /**
@@ -72,7 +72,7 @@ final class SurveyTemplateElementL11nTest extends \PHPUnit\Framework\TestCase
     public function testLanguageInputOutput() : void
     {
         $this->l11n->setLanguage(ISO639x1Enum::_DE);
-        self::assertEquals(ISO639x1Enum::_DE, $this->l11n->getLanguage());
+        self::assertEquals(ISO639x1Enum::_DE, $this->l11n->language);
     }
 
     /**
diff --git a/tests/Models/SurveyTemplateL11nTest.php b/tests/Models/SurveyTemplateL11nTest.php
index 76796b4..9a499ed 100755
--- a/tests/Models/SurveyTemplateL11nTest.php
+++ b/tests/Models/SurveyTemplateL11nTest.php
@@ -42,7 +42,7 @@ final class SurveyTemplateL11nTest extends \PHPUnit\Framework\TestCase
         self::assertEquals('', $this->l11n->title);
         self::assertEquals('', $this->l11n->description);
         self::assertEquals('', $this->l11n->descriptionPlain);
-        self::assertEquals(ISO639x1Enum::_EN, $this->l11n->getLanguage());
+        self::assertEquals(ISO639x1Enum::_EN, $this->l11n->language);
     }
 
     /**
@@ -72,7 +72,7 @@ final class SurveyTemplateL11nTest extends \PHPUnit\Framework\TestCase
     public function testLanguageInputOutput() : void
     {
         $this->l11n->setLanguage(ISO639x1Enum::_DE);
-        self::assertEquals(ISO639x1Enum::_DE, $this->l11n->getLanguage());
+        self::assertEquals(ISO639x1Enum::_DE, $this->l11n->language);
     }
 
     /**
diff --git a/tests/Models/SurveyTemplateLabelL11nTest.php b/tests/Models/SurveyTemplateLabelL11nTest.php
index 5b1ae84..0ecaefb 100755
--- a/tests/Models/SurveyTemplateLabelL11nTest.php
+++ b/tests/Models/SurveyTemplateLabelL11nTest.php
@@ -40,7 +40,7 @@ final class SurveyTemplateLabelL11nTest extends \PHPUnit\Framework\TestCase
     {
         self::assertEquals(0, $this->l11n->id);
         self::assertEquals('', $this->l11n->title);
-        self::assertEquals(ISO639x1Enum::_EN, $this->l11n->getLanguage());
+        self::assertEquals(ISO639x1Enum::_EN, $this->l11n->language);
     }
 
     /**
@@ -60,7 +60,7 @@ final class SurveyTemplateLabelL11nTest extends \PHPUnit\Framework\TestCase
     public function testLanguageInputOutput() : void
     {
         $this->l11n->setLanguage(ISO639x1Enum::_DE);
-        self::assertEquals(ISO639x1Enum::_DE, $this->l11n->getLanguage());
+        self::assertEquals(ISO639x1Enum::_DE, $this->l11n->language);
     }
 
     /**