工作流管理系统的体系结构研究

目前对于WFMS体系结构的研究主要集中在具体的应用上,尚不存在一种完全通用的WFMS体系结构。虽然工作流管理联盟为此制定了标准,但它所关注的仅仅是抽象的顶层结构,并没有涉及到底层模块的详细设计。本文采用自上而下的分层设计策略,提出了一种完备的通用WFMS体系结构。我们把WFMS分解为三个主要部分:设计模块、服务器模块和客户端模块,并分别对三者进行了详细论述。除此之外,为解决分布异构环境中的系统功能扩展问题,我们还设计了扩展模块;为克服工作流客户端的不断移动所产生的消极影响,我们使WFMS与其他平台之间的接口实现了标准化,从而保证了WFMS具有很好的灵活性和可扩展性。

Research on Architecture of Workflow Management System

Research on WFMS architecture mostly focuses on concrete application presently,and there is no a complete and general WFMS architecture.Though workflow Management cooperation have developed standards for WFMS,it only concerns abstract top WFMS architecture,and does not include detailed software architecture.In this paper,we,using a top-down design strategy,provide a complete and general WFMS architecture.We divide WFMS into three modules:workflow design,workflow server and workflow clients,which all are designed in detail.Furthermore,we design extension modules to extend system function in heterogeneous environments,and standardize the interfaces between WFMS and other platforms to overcome negative effect of mobile workflow client,so as to ensure flexibility and extensibility of WFMS.