Interktion im WPF erweitert

DaSaSo.Domain/Services/ProjectServices/IProjectService.cs

@@ -0,0 +1,14 @@
+using DaSaSo.Domain.Model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DaSaSo.Domain.Services.ProjectServices
+{
+    public interface IProjectService
+    {
+        Task<Project> CreateProject(Client Auftraggeber);
+    }
+}