diff --git a/src/app/components/forms/task/task-form.component.html b/src/app/components/forms/task/task-form.component.html
index dce239e..3ee699d 100644
--- a/src/app/components/forms/task/task-form.component.html
+++ b/src/app/components/forms/task/task-form.component.html
@@ -179,7 +179,7 @@
                   aria-haspopup="true"
                   aria-expanded="false"
                 >
-                  Bearbeiter: {{ getAuthorById(task.assignedtoId) }}
+                  Bearbeiter: {{ getAuthorNameById(task.assignedToId) }}
                 </button>
                 <div
                   ngbDropdownMenu
@@ -191,7 +191,7 @@
                     disable-auto-close
                     ngbDropdownItem
                     *ngFor="let user of allUser"
-                    (click)="task.assignedtoId = user.id"
+                    (click)="task.assignedToId = user.id"
                     >{{ user.name }}</option
                   >
                   <div class="dropdown-divider"></div>
@@ -202,7 +202,7 @@
                     id="username"
                     class="dropdown-item"
                     (change)="user.name = username.value"
-                    placeholder="New Title..."
+                    placeholder="New Username..."
                     style="background-color: rgba(211, 211, 211, 0.342);"
                   />
                   <button
@@ -219,7 +219,7 @@
                     ngbDropdownItem
                     class="dropdown-item"
                     type="button"
-                    (click)="deleteUser(task.assignedtoId)"
+                    (click)="deleteUser(task.assignedToId)"
                   >
                   User löschen
                   </button>
@@ -231,7 +231,7 @@
                   id="assignedto"
                   required
                   name="assignedto"
-                  [(ngModel)]="task.assignedtoId"
+                  [(ngModel)]="task.assignedToId"
                 >
                   <option *ngFor="let user of allUser" [value]="user.id">{{
                     user.name
diff --git a/src/app/components/forms/task/task-form.component.ts b/src/app/components/forms/task/task-form.component.ts
index 636b816..8d686f6 100644
--- a/src/app/components/forms/task/task-form.component.ts
+++ b/src/app/components/forms/task/task-form.component.ts
@@ -200,7 +200,7 @@ class TaskFormComponent implements OnInit {
 				this.allUser.splice(index, 1);
 			}
 		}
-		this.task.assignedtoId = null;
+		this.task.assignedToId = null;
 	});
 }
 
@@ -258,12 +258,12 @@ class TaskFormComponent implements OnInit {
    * Shows the before assigned user in the author-field in the popup window.
    * @param id reference to the author object
    */
-	getAuthorById(id: number): string {
+	getAuthorNameById(id: number): string {
 		if (!id) {
 			return null;
 		}
 		var user = this.allUser.find((x) => x.id === id);
-		if (!user) {
+		if (user == null) {
 			return null;
 		}
 		return user.name;
diff --git a/src/app/components/forms/userstory/userstory-form.component.html b/src/app/components/forms/userstory/userstory-form.component.html
index 9aa6e7a..ee8396f 100644
--- a/src/app/components/forms/userstory/userstory-form.component.html
+++ b/src/app/components/forms/userstory/userstory-form.component.html
@@ -227,7 +227,7 @@
                   aria-haspopup="true"
                   aria-expanded="false"
                 >
-                  Bearbeiter: {{ getAuthorById(userstory.createdbyId) }}
+                  Author: {{ getAuthorById(userstory.createdById) }}
                 </button>
                 <div
                   ngbDropdownMenu
@@ -239,7 +239,7 @@
                     disable-auto-close
                     ngbDropdownItem
                     *ngFor="let user of allUser"
-                    (click)="userstory.createdbyId = user.id"
+                    (click)="userstory.createdById = user.id"
                     >{{ user.name }}</option
                   >
                   <div class="dropdown-divider"></div>
@@ -267,7 +267,7 @@
                     ngbDropdownItem
                     class="dropdown-item"
                     type="button"
-                    (click)="deleteUser(task.assignedtoId)"
+                    (click)="deleteUser(userstory.createdById)"
                   >
                   User löschen
                   </button>
@@ -279,7 +279,7 @@
                   id="prio"
                   required
                   name="prio"
-                  [(ngModel)]="userstory.createdbyId"
+                  [(ngModel)]="userstory.createdById"
                 >
                   <option *ngFor="let user of allUser" [value]="user.id">{{
                     user.name
diff --git a/src/app/components/forms/userstory/userstory-form.component.ts b/src/app/components/forms/userstory/userstory-form.component.ts
index 753895f..6f58d7f 100644
--- a/src/app/components/forms/userstory/userstory-form.component.ts
+++ b/src/app/components/forms/userstory/userstory-form.component.ts
@@ -254,7 +254,7 @@ class UserstoryFormComponent implements OnInit {
 				this.allUser.splice(index, 1);
 			}
 		}
-		this.userstory.createdbyId = null;
+		this.userstory.createdById = null;
 	});
 }
 
diff --git a/src/app/components/tabels/task/task-table.component.html b/src/app/components/tabels/task/task-table.component.html
index 978b207..e61d133 100644
--- a/src/app/components/tabels/task/task-table.component.html
+++ b/src/app/components/tabels/task/task-table.component.html
@@ -161,8 +161,8 @@
           </td>
           <td>{{ task.priority }}</td>
           <td>
-            <a [routerLink]="['/users', { id: task.assignedtoId }]">
-              {{ getUserNameById(task.assignedtoId) }}
+            <a [routerLink]="['/users', { id: task.assignedToId }]">
+              {{ getUserNameById(task.assignedToId) }}
             </a>
           </td>
           <td>
diff --git a/src/app/components/tabels/task/task-table.component.ts b/src/app/components/tabels/task/task-table.component.ts
index cf24aad..6cd4c6e 100644
--- a/src/app/components/tabels/task/task-table.component.ts
+++ b/src/app/components/tabels/task/task-table.component.ts
@@ -99,7 +99,7 @@ export class TaskTableComponent extends TableComponentBase<ScrumTask> {
    */
   getUserNameById(id) {
     var user = this.users.find((x) => x.id === id);
-    if (!user) {
+    if (user == null) {
       return 'N/A';
     }
     return user.name;
@@ -165,7 +165,7 @@ export class TaskTableComponent extends TableComponentBase<ScrumTask> {
    * Sorts the tabel's items by assignedtoid
    */
   sortByAssigned() {
-    this.doNumericSort('assignedtoid', (task) => task.assignedtoId);
+    this.doNumericSort('assignedtoid', (task) => task.assignedToId);
   }
 
   /**
diff --git a/src/app/services/backend.service.ts b/src/app/services/backend.service.ts
index 4fcc512..8c102f3 100644
--- a/src/app/services/backend.service.ts
+++ b/src/app/services/backend.service.ts
@@ -350,7 +350,7 @@ export interface ScrumTask {
   content?: string;
   statusId?: number;
   categoryId?: number;
-  assignedtoId?: number;
+  assignedToId?: number;
   sprintId?: number;
   projectId?: number;
   userstoryId?: number;
@@ -370,7 +370,7 @@ export interface ScrumUserstory {
   statusId?: number;
   categoryId?: number;
   sprintId?: number;
-  createdbyId?: number;
+  createdById?: number;
   projectId?: number;
 }