Modeling Interaction-Oriented Architectures using Choreographies

The Software architecture of a system can be regarded as a consistent set of views to describe the system. This paper focuses on the interaction between components in a system. These can be modeled as choreographies, capturing all allowed interactions between the components. In this paper, we show that it is feasible to analyze a composed set of these choreographies: a tree of choreographies in which each member may refer to another. The two major components of the analysis are correctness by structure: a choreography needs to follow strict rules to guarantee soundness. Otherwise, the choreography is transformed into a Petri net which is checked by an external tool. This paper shows the theoretical techniques to verify a composed choreography, and implements the solutions into a single educational modeler tool: INORA2