16.1 WS-BPEL language basics
16.2 WS-Coordination overview
16.3 Service-oriented business process design (a step-by-step process)
The orchestration service layer provides a powerful means by which contemporary service-oriented solutions can realize some key benefits. The most significant contribution this sub-layer brings to SOA is an abstraction of logic and responsibility that alleviates underlying services from a number of design constraints.
For example, by abstracting business process logic:
• Application and business services can be freely designed to be process-agnostic ...