消息传递在基于Web的工作流系统中应用

针对目前许多工作流产品协作性弱的实际问题,提出了将消息传递应用在基于Web的工作流系统的模型。文中首先介绍了工作流的基本概念,产品分类及发展趋势;然后分析了基于Web的工作流系统的软件体系结构,给出了工作流模型及消息传递的形式化定义;最后通过一个基于该体系结构的应用实例加以说明。该应用以Exchange2000Server作为邮件服务器进行消息传递;利用关系型数据库保存工作流工作过程的业务信息及流程信息,并可对整个流转过程进行跟踪、记录与控制,以提高工作流系统的协作与监控能力。

Message Applied in Workfiow System based on Web

In order to enhance cooperativity of the current workflow system,in this paper,a model of workflow system based on Web with new message mechanism is put forward.First,the workflow's concept ,classification and trend are in-troduced.Then the authors analyse the software architecture of the workflow system based on Web and give a formaliza-tion definition of workflow model and message transfer.At last,a workflow application instance based on Web is given as an example of the new model.In this application,Exchange2000Server,as mail server,is responsible for message transfer.Business information and route message of the workflow process are stored in the relational database so as to track,record and control the total process.It will improve cooperativity and management of the system.