In the previous chapter, we used Foundational Service Patterns and Composition Implementation Patterns along with elements of a Compound Orchestration Pattern to start the gradual refactoring of a complex telecom service landscape (refer to the Design Patterns (by category) section at http://soapatterns.org/). After the initial analysis and redesign, we came up with the first working model of a service orchestration layer, and this layer is equipped with Universal Agnostic Controller; it serves both long- and short-running compositions. Although completely operational, this solution is still far from optimal. Thus, we dedicate this chapter to further optimization of solutions through continuous service-oriented analysis, identification of common problems, and application of solutions in the form of commonly approved SOA patterns.

As an immediate result, we expect the following benefits: