OCL-Constraints for UMM Business Collaborations

Recently, a trend towards business processes in Business-to-Business e-Commerce (B2B) is apparent. One of the most promising approaches is UN/CEFACT’s modeling methodology (UMM) based on UML. However, developing a new UMM model for each small variation in a business process would lead in a multitude of “similar” business processes. Thus, a more generic UMM model together with well-defined constraints for different business environments is a better approach to ensure unambiguity. In this paper we develop templates for such constraints based on an extended version of OCL.