Synthesizing an Automata-based Representation of BPMN2 Choreography Diagrams

Choreographies are an emergent Service Engineering approach to compose together and coordinate distributed services. They represent a global specification of the interactions between the participant services. BPMN2 provides a dedicated notation, called Choreography Diagrams, to define choreographies. This paper presents a model transformation to automatically transform a BPMN2 choreography specification into an automata-based representation called Choreography LTS (CLTS). The latter is a LTS suitably extended to, on one side model the complex interactions that can be specified by choreography diagrams, on the other provide modelers with a means to precisely extract the not-easy-to-grasp coordination logic “hidden” into BPMN2 Choreography Diagrams. Dedicated Eclipse plugins, within the CHOReOSynt tool, have been developed to support the presented transformation.