WPDL规范化工作流模型研究

The Implementation of WPDL Conforming Workflow Model

WPDL(WorkflowProcessDefinitionLanguage)提供了一个公共的工作流定义交换格式,使得在不同的工作流管理系统产品之间交换模型定义成为可能。但由于不同系统模型的差异,要实现模型交换,仍然需要解决许多难题。该文介绍了WPDL元模型和CIMFlow模型(CIMS工程研究中心开发的工作流管理系统)的具体结构,给出了一种WPDL规范化工作流模型的实现方法。该文所提出和实施的模型转换方法对于其他工作流模型向WPDL规范模型转换有重要的参考价值,针对WPDL规范中存在的问题提出的增补与修改建议对于完善WPDL规范有促进作用。

Workflow Process Definition Language(WPDL)facilitates the transfers of workflow process definitions between separate workflow products.Normally there is still much work to do to transfer the specific workflow model to WPDL conforming model.CIMFlow is a workflow management system developed by the National CIMS Engineering Research Center.This paper discusses the methods to make CIMFlow model conform to WPDL meta -model.Firstly,the WPDL meta-model,the CIMFlow model,and the differences between them are presented.Then,some improvements and modifica-tions to the WPDL specification are proposed.Finally,the mapping and translating methods of the entities and attributes of the two models are given.