Interaction Protocols and Capabilities: A Preliminary Report

摘要: A typical problem of the research area on Service-Oriented Architectures is composition a set existing services with aim executing complex task. The selection and are based description themselves can exploit an abstract their interactions. Interaction protocols (or choreographies) capture interaction as whole, defining rules that entities should respect in order to guarantee interoperability; they do not refer specific but specify roles communication among roles. Policies (behavioral interfaces web service terminology), instead, focus from point view individual services. In this paper we present preliminary study aimed allow use public choreography specifications for generating executable policies peers would like take part interaction. Usually only interactive behavior system whole. We propose enrich by requirements capabilities parties exhibit, where term “capability” mean skill doing something or making some condition become true. Such have twofold connecting be shown role-player its internal state policy executable. possible extension WS-CDL capability proposed.