diff --git a/src/app/core/entity/task.ts b/src/app/core/entity/task.ts
index ec412e7..918e725 100644
--- a/src/app/core/entity/task.ts
+++ b/src/app/core/entity/task.ts
@@ -2,4 +2,6 @@ export interface Task {
     title: string;
     creationDate: Date;
     description: string;
+    subtasks: Task[];
+    isAsync: boolean;
 }
\ No newline at end of file
diff --git a/src/app/core/entity/taskList.ts b/src/app/core/entity/taskList.ts
new file mode 100644
index 0000000..f03712d
--- /dev/null
+++ b/src/app/core/entity/taskList.ts
@@ -0,0 +1,9 @@
+import { Task } from "./task";
+
+export interface TaskList {
+    id: string;
+    name: string;
+    tasks: Task[],
+    achievedTasks: Task[];
+    abandonnedTasks: Task[];
+}
\ No newline at end of file