Building extensible composite applications with SAP : [explains how to develop extensible composite applications in Java describes Web services and Java EE 5 (EJB 3.0) in SAP NetWeaver: includes numerous screenshots and code examples to support quick learning] Design principles of modern Java applications Fundamentals of extensibility concepts Extensibility based on Java class loading Extensibility based on Java enterprise beans Extensibility based on web services Introducing an extensibility framework