diff --git a/common/services/TemplateService.php b/common/services/TemplateService.php
index d9b928a..c3d2d11 100644
--- a/common/services/TemplateService.php
+++ b/common/services/TemplateService.php
@@ -19,11 +19,7 @@ class TemplateService
     public static function getTemplateWithFields($template_id): array
     {
         return Template::find()
-//            ->select('title')
             ->joinWith('templateDocumentFields.field')
-//            ->with([
-//                'fields' => function ($query) { $query->select(['id', 'title', 'field_template']); }
-//            ])
             ->where(['template.id' => $template_id])
             ->asArray()
             ->one();
diff --git a/common/services/UserQuestionnaireService.php b/common/services/UserQuestionnaireService.php
new file mode 100644
index 0000000..9efaf69
--- /dev/null
+++ b/common/services/UserQuestionnaireService.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace common\services;
+
+class UserQuestionnaireService
+{
+
+}
\ No newline at end of file
diff --git a/common/services/UserResponseService.php b/common/services/UserResponseService.php
new file mode 100644
index 0000000..d6eb6ee
--- /dev/null
+++ b/common/services/UserResponseService.php
@@ -0,0 +1,74 @@
+<?php
+
+namespace common\services;
+
+use common\models\UserResponse;
+use Yii;
+use yii\web\BadRequestHttpException;
+use yii\web\ServerErrorHttpException;
+
+class UserResponseService
+{
+    /**
+     * @throws BadRequestHttpException
+     * @throws ServerErrorHttpException
+     */
+    public static function createUserResponse($userResponseParams): UserResponse
+    {
+        $userResponse = new UserResponse();
+        $userResponse->load($userResponseParams, '');
+        (new UserResponseService)->validateResponseModel($userResponse);
+        (new UserResponseService)->saveModel($userResponse);
+        return $userResponse;
+    }
+
+    /**
+     * @throws BadRequestHttpException
+     * @throws ServerErrorHttpException
+     */
+    public static function createUserResponses($userResponsesParams): array
+    {
+        $userResponseModels = array();
+        foreach ($userResponsesParams['userResponses'] as $userResponseParams) {
+            $model = new UserResponse();
+            $model->load($userResponseParams, '');
+            (new UserResponseService)->validateResponseModel($model);
+
+            array_push($userResponseModels, $model);
+        }
+
+        foreach ($userResponseModels as $responseModel) {
+            (new UserResponseService)->saveModel($responseModel);
+        }
+
+        return $userResponseModels;
+    }
+
+    /**
+     * @throws BadRequestHttpException
+     */
+    protected function validateResponseModel($model)
+    {
+        if (!$model->validate()) {
+            throw new BadRequestHttpException(json_encode($model->errors));
+        }
+
+        if (empty($model->user_id) or empty($model->question_id) or empty($model->user_questionnaire_uuid)) {
+            throw new BadRequestHttpException(json_encode('One of the parameters is empty!'));
+        }
+    }
+
+    /**
+     * @throws ServerErrorHttpException
+     */
+    protected function saveModel($model)
+    {
+        if ($model->save()) {
+            ScoreCalculatorService::rateOneResponse($model);
+            $response = Yii::$app->getResponse();
+            $response->setStatusCode(201);
+        } elseif (!$model->hasErrors()) {
+            throw new ServerErrorHttpException('Failed to create the object for unknown reason.');
+        }
+    }
+}
\ No newline at end of file
diff --git a/frontend/modules/api/controllers/UserQuestionnaireController.php b/frontend/modules/api/controllers/UserQuestionnaireController.php
index 1d77ccf..79e450a 100644
--- a/frontend/modules/api/controllers/UserQuestionnaireController.php
+++ b/frontend/modules/api/controllers/UserQuestionnaireController.php
@@ -2,26 +2,14 @@
 
 namespace frontend\modules\api\controllers;
 
-use common\helpers\ScoreCalculatorHelper;
+use common\services\ScoreCalculatorService;
 use common\models\UserQuestionnaire;
 use Yii;
 use yii\filters\auth\HttpBearerAuth;
-use yii\rest\Controller;
 use yii\web\NotFoundHttpException;
 
 class UserQuestionnaireController extends ApiController
 {
-    public function behaviors()
-    {
-        $behaviors = parent::behaviors();
-
-        $behaviors['authenticator']['authMethods'] = [
-            HttpBearerAuth::className(),
-        ];
-
-        return $behaviors;
-    }
-
     public function verbs()
     {
         return [
@@ -75,8 +63,8 @@ class UserQuestionnaireController extends ApiController
             throw new NotFoundHttpException('Active questionnaire not found');
         }
 
-        ScoreCalculatorHelper::rateResponses($userQuestionnaireModel);
-        ScoreCalculatorHelper::calculateScore($userQuestionnaireModel);
+        ScoreCalculatorService::rateResponses($userQuestionnaireModel);
+        ScoreCalculatorService::calculateScore($userQuestionnaireModel);
 
         return $userQuestionnaireModel;
     }
diff --git a/frontend/modules/api/controllers/UserResponseController.php b/frontend/modules/api/controllers/UserResponseController.php
index 15533fc..694cd31 100644
--- a/frontend/modules/api/controllers/UserResponseController.php
+++ b/frontend/modules/api/controllers/UserResponseController.php
@@ -2,8 +2,8 @@
 
 namespace frontend\modules\api\controllers;
 
-use common\services\ScoreCalculatorService;
 use common\models\UserResponse;
+use common\services\UserResponseService;
 use Yii;
 use yii\base\InvalidConfigException;
 use yii\web\BadRequestHttpException;
@@ -11,8 +11,6 @@ use yii\web\ServerErrorHttpException;
 
 class UserResponseController extends ApiController
 {
-    public $modelClass = 'common\models\UserResponse';
-
     public function verbs(): array
     {
         return [
@@ -21,76 +19,31 @@ class UserResponseController extends ApiController
         ];
     }
 
-
     /**
      * @throws InvalidConfigException
-     * @throws BadRequestHttpException
-     * @throws ServerErrorHttpException
+     * @throws ServerErrorHttpException|BadRequestHttpException
      */
-    public function actionSetResponse()
+    public function actionSetResponse(): UserResponse
     {
-        $request = Yii::$app->getRequest()->getBodyParams();
-
-        $model = new UserResponse();
-        $model->load($request, '');
-
-        $this->validateResponseModel($model);
-        $this->saveModel($model);
-
-        return $model;
+        $userResponseModel = UserResponseService::createUserResponse(Yii::$app->getRequest()->getBodyParams());
+        if ($userResponseModel->errors) {
+            throw new ServerErrorHttpException(json_encode($userResponseModel->errors));
+        }
+        return $userResponseModel;
     }
 
     /**
      * @throws InvalidConfigException
-     * @throws ServerErrorHttpException
-     * @throws BadRequestHttpException
+     * @throws ServerErrorHttpException|BadRequestHttpException
      */
     public function actionSetResponses(): array
     {
-        $requests = Yii::$app->getRequest()->getBodyParams();
-
-        $responseModels = array();
-
-        foreach ($requests['userResponses'] as $request) {
-            $model = new UserResponse();
-            $model->load($request, '');
-            $this->validateResponseModel($model);
-
-            array_push($responseModels, $model);
-        }
-
-        foreach ($responseModels as $responseModel) {
-            $this->saveModel($responseModel);
-        }
-
-        return $responseModels;
-    }
-
-    /**
-     * @throws BadRequestHttpException
-     */
-    protected function validateResponseModel($model)
-    {
-        if(!$model->validate()) {
-            throw new BadRequestHttpException(json_encode($model->errors));
-        }
-
-        if (empty($model->user_id) or empty($model->question_id) or empty($model->user_questionnaire_uuid)) {
-            throw new BadRequestHttpException(json_encode($model->errors));
-        }
-    }
-
-    /**
-     * @throws ServerErrorHttpException
-     */
-    protected function saveModel($model)
-    {
-        if ($model->save()) {
-            ScoreCalculatorService::rateOneResponse($model);
-            $response = Yii::$app->getResponse();
-            $response->setStatusCode(201);
-        } elseif (!$model->hasErrors()) {
-            throw new ServerErrorHttpException('Failed to create the object for unknown reason.');
+        $userResponseModels = UserResponseService::createUserResponses(Yii::$app->getRequest()->getBodyParams());
+        foreach ($userResponseModels as $model) {
+            if ($model->errors) {
+                throw new ServerErrorHttpException(json_encode($model->errors));
+            }
         }
+        return $userResponseModels;
     }
 }