Creating an Application Service
Use
Application services contain the business logic of your application. You can also use application services to present data to the user interface.
Prerequisites
You have opened the Composite Application perspective in SAP NetWeaver Developer Studio.
Procedure
...
1. Open the carpool application in the SAP NetWeaver Developer Studio.
2. In the Composite Application Explorer view, click modeled package with the secondary mouse button and choose New → Application Service.
3. In the Application Service Name field, enter TravelLocationApp and choose Finish.
4. In the Composite Application Explorer view, double-click the TravelLocationApp service and open the Dependencies tab page.
5.
From the Existing Objects tree, navigate to carpool → modeled
→ Business Obejcts
→ TravelLocation and
choose 
with the quick info text Add Dependency.
The new object appears under the Dependent Objects list.
Result
You have created your first application service and it appears in the Composite Application Explorer view.
Step 5: