Service Interaction Patterns: A Conflgurable Framework

In this paper we present a framework for describing a series of pattern variants encountered in the context of Service Interaction. The original Service Interaction Patterns (9) only covered 13 interactions sce- narios. Moreover, some important aspects of service interaction of a bilat- eral and multilateral nature are not addressed in (9). Furthermore, these patterns allow for ambiguous interpretation due to the absence of a formal semantics. The scope of the patterns generated by means of the framework described in this paper is much broader. To avoid ambiguities we formalize the semantics of the patterns by means of Colored Petri Nets (CPN). In addition, we propose an intuitive graphical notation that can be used to denote the various pattern variants. This paper also provides an evaluation of WS-BPEL v2.0 standard using these patterns.