diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 5f35219..2c5b91b 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -7220,9 +7220,9 @@
       "dev": true
     },
     "node_modules/follow-redirects": {
-      "version": "1.15.3",
-      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.3.tgz",
-      "integrity": "sha512-1VzOtuEM8pC9SFU1E+8KfTjZyMztRsgEfwQl44z8A25uy13jSzTj6dyK2Df52iV0vgHCfBwLhDWevLn95w5v6Q==",
+      "version": "1.15.6",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.6.tgz",
+      "integrity": "sha512-wWN62YITEaOpSK584EZXJafH1AGpO8RVgElfkuXbTOrPX4fIfOyEpW/CsiNd8JdYrAoOvafRTOEnvsO++qCqFA==",
       "dev": true,
       "funding": [
         {
@@ -8103,9 +8103,9 @@
       }
     },
     "node_modules/ip": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/ip/-/ip-2.0.0.tgz",
-      "integrity": "sha512-WKa+XuLG1A1R0UWhl2+1XQSi+fZWMsYKffMZTTYsiZaUD8k2yDAj5atimTUD2TZkyCkNEeYE5NhFZmupOGtjYQ==",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/ip/-/ip-2.0.1.tgz",
+      "integrity": "sha512-lJUL9imLTNi1ZfXT+DU6rBBdbiKGBuay9B6xGSPVjUeQwaH1RIGqef8RZkUtHioLmSNpPR5M4HVKJGm1j8FWVQ==",
       "dev": true
     },
     "node_modules/ipaddr.js": {
diff --git a/frontend/src/app/tasks/task-dashboard/task-dashboard.component.html b/frontend/src/app/tasks/task-dashboard/task-dashboard.component.html
index 1a7294c..d8d33bc 100644
--- a/frontend/src/app/tasks/task-dashboard/task-dashboard.component.html
+++ b/frontend/src/app/tasks/task-dashboard/task-dashboard.component.html
@@ -29,7 +29,7 @@
     <ng-container matColumnDef="finished">
       <th mat-header-cell *matHeaderCellDef mat-sort-header> Finished </th>
       <td mat-cell *matCellDef="let task">
-        <mat-checkbox [checked]="task.finished" [contentEditable]="false" disableRipple="true" (click)="$event.preventDefault()"></mat-checkbox>
+        <mat-checkbox [checked]="task.finished" [contentEditable]="false"  (click)="$event.preventDefault()"></mat-checkbox>
       </td>
     </ng-container>
     <ng-container matColumnDef="status">
diff --git a/frontend/src/app/tasks/task-dashboard/task-dashboard.component.ts b/frontend/src/app/tasks/task-dashboard/task-dashboard.component.ts
index 4429134..df32cb8 100644
--- a/frontend/src/app/tasks/task-dashboard/task-dashboard.component.ts
+++ b/frontend/src/app/tasks/task-dashboard/task-dashboard.component.ts
@@ -9,6 +9,7 @@ import {MatDialog} from "@angular/material/dialog";
 import {MatSnackBar} from "@angular/material/snack-bar";
 import {ClearTaskDialogComponent, ClearTaskDialogData} from "../clear-task-dialog/clear-task-dialog.component";
 import * as moment from "moment/moment";
+import {TaskStatus, TaskStatusService} from "../task-status.service";
 
 @Component({
   selector: 'app-task-dashboard',
@@ -39,7 +40,8 @@ export class TaskDashboardComponent implements OnChanges{
 
   constructor(private taskService: TaskService,
               private dialog: MatDialog,
-              private snackbar: MatSnackBar) {
+              private snackbar: MatSnackBar,
+              public taskStatusService: TaskStatusService) {
   }
 
 
@@ -53,13 +55,8 @@ export class TaskDashboardComponent implements OnChanges{
   }
 
   getStatusOfTask(task: TaskEntityInfo) {
-    if(moment(task.deadline, 'YYYY-MM-DDTHH:mm:ss.SSSZ').isBefore(moment())) {
-      return "🔴";
-    } else if(task.finishable && !task.hasPlannedSchedules){
-      return "🟠";
-    } else {
-      return "🟢";
-    }
+    const taskStatus = this.taskStatusService.computeTaskStatus(task);
+    return this.taskStatusService.convertTaskStatusToColor(taskStatus);
   }
 
   deleteTask(deletedTask: TaskEntityInfo) {
@@ -108,4 +105,6 @@ export class TaskDashboardComponent implements OnChanges{
     data.push(task)
     this.datasource.data = data;
   }
+
+  protected readonly TaskStatus = TaskStatus;
 }
diff --git a/frontend/src/app/tasks/task-status.service.spec.ts b/frontend/src/app/tasks/task-status.service.spec.ts
new file mode 100644
index 0000000..82e6a85
--- /dev/null
+++ b/frontend/src/app/tasks/task-status.service.spec.ts
@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { TaskStatusService } from './task-status.service';
+
+describe('TaskStatusService', () => {
+  let service: TaskStatusService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(TaskStatusService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});
diff --git a/frontend/src/app/tasks/task-status.service.ts b/frontend/src/app/tasks/task-status.service.ts
new file mode 100644
index 0000000..ed10fe7
--- /dev/null
+++ b/frontend/src/app/tasks/task-status.service.ts
@@ -0,0 +1,38 @@
+import { Injectable } from '@angular/core';
+import {TaskEntityInfo} from "../../api";
+import * as moment from "moment";
+
+export enum TaskStatus {
+  OK,
+  WARNING,
+  ATTENTION,
+  DEAD
+}
+@Injectable({
+  providedIn: 'root'
+})
+export class TaskStatusService {
+
+  constructor() { }
+
+  computeTaskStatus(task: TaskEntityInfo): TaskStatus {
+    if(!task.finished &&  task.deadline != null && moment(task.deadline, 'YYYY-MM-DDTHH:mm:ss.SSSZ').isBefore(moment())) {
+      return TaskStatus.DEAD;
+    } else if(!task.finished && task.deadline != null && !task.hasPlannedSchedules) {
+      return TaskStatus.ATTENTION
+    } else if(!task.finished && !task.hasPlannedSchedules) {
+      return TaskStatus.WARNING
+    } else {
+      return TaskStatus.OK;
+    }
+  }
+
+  convertTaskStatusToColor(taskStatus: TaskStatus) {
+    switch (taskStatus) {
+      case TaskStatus.OK: return "🟢";
+      case TaskStatus.WARNING: return "🟠";
+      case TaskStatus.ATTENTION: return "🔴";
+      case TaskStatus.DEAD: return "⚫";
+    }
+  }
+}