Scheduling ProActive activities with a XPDL-based Workflow Engine

Composition represents today one of the most challenging approach to design complex software systems, especially in distributed environments. While two different views (in time and in space) are considered by researchers to compose applications, we aim at applying these two views in an integrated approach. In particular, we believe that large-scale composition in an open world is simplified by using composition in time, whereas, in the closed environment of a cluster, composition in space is more effective. In the paper, we propose the integration of a workflow engine with ProActive objects to support together the two kinds of composition at different scale-level. The paper shows the first results of this integration and highlights the plan for achieving a stronger integration with the use of GCM components