基于模型驱动架构的工作流管理系统开发研究

摘要

针对企业在导入或转换新的工作流平台时重新建模的问题,提出基于MDA的工作流管理系统开发架构.此架构中工作流程的建模分成两个阶段,首先设计了工作流程的PIM元模型并进行PIM建模,然后将PIM转换成PSM模型,最后再由PSM自动产生流程定义文件,这样在转移工作流程平台时,流程的PIM模型可以保留并以模型转换技术对应至新平台的PSM模型.给出了由PIM元模型转换为WfMC PSM模型的程序以及由WfMC PSM模型转换为XPDL流程定义的程序,并以电子订单工作流程为例进行了验证.此开发架构降低了流程平台转移时的成本与复杂度,提高了工作流程模型的可重用性.%Facing the problem of modeling renewably when importing or switching to a new workflow platform,propose a workflow management system developing architecture based on MDA( Model-Driven Architecture). The architecture divides the modeling procedure into two phases. First phase is PIM modeling, then PIM to PSM and PSM to workflow definitions. So PIM can be kept and transferred to new platform' s PSM. Introduce the program of PIM to WfMC PSM and WfMC PSM to XPDL, and validate the architecture with an electronic order workflow. The architecture reduces the transition cost and complexity, and enhances the model reusability.