diff --git a/src/Controller/DashboardController.php b/src/Controller/DashboardController.php
index e93d322..dead06a 100644
--- a/src/Controller/DashboardController.php
+++ b/src/Controller/DashboardController.php
@@ -14,4 +14,6 @@ class DashboardController extends AbstractController
     {
         return $this->render('dashboard/index.html.twig');
     }
+
+
 }
diff --git a/src/Service/RelationService.php b/src/Service/RelationService.php
index b3d9bbc..223b5df 100644
--- a/src/Service/RelationService.php
+++ b/src/Service/RelationService.php
@@ -1 +1,61 @@
 <?php
+
+namespace App\Service;
+
+
+use App\Entity\Assignment;
+use App\Entity\Category;
+use App\Entity\Employee;
+use App\Entity\EmployeeSkill;
+use App\Entity\Mission;
+use App\Entity\MissionCategory;
+use App\Entity\Representation;
+use App\Entity\Requirement;
+use App\Entity\Ride;
+use App\Entity\Skill;
+
+class RelationService {
+    public function setAssignment(Ride $ride, Employee $employee, \DateTime $startHour, \DateTime $endHour )
+    {
+        $assignment = new Assignment();
+
+        $assignment->setEmployee($employee);
+        $assignment->setRide($ride);
+        $assignment->setStartHour($startHour);
+        $assignment->setEndHour($endHour);
+    }
+
+    public function setEmployeeSkill(Skill $skill, Employee $employee )
+    {
+        $employeeSkill = new EmployeeSkill();
+
+        $employeeSkill->setEmployee($employee);
+        $employeeSkill->setSkill($skill);
+    }
+
+    public function setMissionCategory(Mission $mission, Category $category )
+    {
+        $missionCategory = new MissionCategory();
+
+        $missionCategory->setMission($mission);
+        $missionCategory->setCategory($category);
+    }
+
+    public function setRepresentation(Ride $ride, Employee $employee,int $count ,\DateTime $date )
+    {
+        $representation = new Representation();
+
+        $representation->setRide($ride);
+        $representation->setEmployee($employee);
+        $representation->setCount($count);
+        $representation->setDate($date);
+    }
+
+    public function setRequirement(Skill $skill, Mission $mission )
+    {
+        $requirement = new Requirement();
+
+        $requirement->setSkill($skill);
+        $requirement->setMission($mission);
+    }
+}