Supporting Evolution in Workflow Definition Languages

摘要

Workflow definition languages are evolving rapidly. However, there is not any agreed-upon standard for such languages. In this paper we address the problem of how to develop a workflow system that is able to cope with the constant changes in these languages. We address the definition aspect of workflow systems by distinguishing between fron-tend and backend languages. This way, a workflow system can be developed based on the backend language whereas the frontend language can change.