一种基于演进规则的工作流引擎

尽管当前工作流技术的使用已比较广泛，但对于工作流引擎的形式化模型却很少定义．为此．提出了一种工作流引擎的框架结构，其中包含有利用XML语言实现的工作流过程定义模型、一个基于关系结构的工作流引擎的控制模型以及可以用来支持复杂的业务逻辑的工作流引擎的演进规则．详细论述了这些模型及规则的设计原理以及实现方法．并通过实例论述如何通过演进规则实现工作流引擎的演进推理过程。

A Workflow Engine Based on Evolutional Rule

Although the workflow technique has been applied commonly,the definition of formalized mathematical model about working flow engine is made rarely.Therefor,this paper presents a framework of a workflow engine,including a workflow process definiation model realized using XML ,a control model of workflow engine based on relationship structure and a evolutional rule of workflow engine to support complex transaction logic. The design principle and the implementation method of the models and rules are given.And the implementation of the evolutional and reasoning process of workflow engine using the evolutional rule is also discussed.