Using an interactive approach, we gradually constructed our first SOA framework that is responsible for holding, running, and maintaining our Enterprise Business Flows (in Oracle's AIA notation). Although AIA denotes this framework as optional, in reality it's the most common and heaviest element of the integration infrastructure in almost any enterprise. Consequently, the source of practically all the problems in this framework is the understanding of business flows as part of a solid integration, sometimes point-to-point and not service collaboration.

Orchestration, according to the SOA pattern catalog, is the biggest compound pattern, comprising many atomic patterns that are responsible for turning the integration approach into a more agile service-oriented computing. As demonstrated in this chapter, the first step would be the proper categorization and decoupling of our bulky services according to their models and levels of granularity. Reassembling these services into managed...