What, not how: A generative approach to service composition

We argue that the complexity of the WS-* service stack is a barrier to the exploitation of service composition in digital ecosystems (and indeed, quite generally). As an alternative, we focus on the emerging interest in REpresentational State Transfer (REST) as an architectural style, and the Semantics of Business Vocabulary and Business Rules (SBVR) for the expression of business requirements. We describe an architecture by which declarative service requests can be dynamically generated from a pool of RESTful web services.