This tutorial summarizes some features of SAP NetWeaver CE 7.1’s composite application framework (CAF). You may learn how to create a CAF project and to model business objects. The document explains then handling of dependencies between development components and the use and purpose of CAF application services. Get to know the integration of service with the help of the service registry and see how fast and easy own business logic can be implemented in the CAF development. Last but not least this paper discusses the re-use of application service as Web Services.