This section provides an initial introduction to the Oracle SOA Suite and its various components, and gives the reader a fast paced hands-on introduction to each of the key components in turn.

Service-Oriented Architecture (SOA) may consist of many interconnected components. As a result of this, the Oracle SOA Suite is a large piece of software that initially seems to be overwhelmingly complex. In this chapter, we will provide a roadmap for your understanding of the SOA Suite and provide a reference architecture to help you understand how to apply SOA principles with the SOA Suite.

Download it from here Oracle SOA Suite 11gR1 Developer’s Guide