Ensuring conformance in an evolving choreography

Choreography models provide structure for overall behavioral constraints and capture the context of the implementing services. Choreography models, however, are not static and evolve as business partners change over time. In order to increase the robustness of these, typically inter-organizational, business processes, we propose to make services adaptive to these kinds of changes. In this paper, we present a model-based approach on how choreographic changes can be automatically resolved in the implementing orchestration. We demonstrate our conceptual approach by providing an implementation that adapts an orchestrator to changes in the ordering of business objectives.