Freeway patterns for SOA systems

Business processes typically contain multiple process steps. In a service oriented landscape, these process steps are realized as services. An implementation of a business process is hence composed of multiple service invocations. In a service oriented landscape, a process model doesn't exist in isolation; it is supplemented by other paradigms which allow the process model to be executed. This paper presents all of these as patterns, and describes how these can be tied together to create a dynamic service oriented landscape. The patterns that this paper describes are: - Service orchestration -- the modeling of a business process as a set of process steps - Service registry -- a mapping of process steps to service endpoints - Service monitor -- a mechanism to monitor the health of an endpoint