基于XML和关系型数据库的分布式通用工作流引擎

针对关键业务的应用开发离不开工作流技术的支持。通过对关键业务的实际开发需求的分析，在传统的关系数据库的基础上。结合XHL的结构化、层次化的特征，提出了一个适用于关键业务开发的基于XHL和关系型数据库的分布式通用工作流引擎的框架结构。此工作流模型由信息模型和控制模型两部分组成。文中详细地给出了相关的信息模型和控制模型的设计原理以及具体的表示和实现方法。其原型已经应用于实际系统中，实践证明，利用此工作流引擎可以显著地缩短关键业务的开发周期。

XML and Relation DB-Based Distributed Common Workflow Engine

Workflow technology plays an important role in the development of critical business applications. According to the analysis of the requirements to develop critical business applications, this paper presents a framework of a XML and relation DB-based distributed common workflow engine, which is built over the conventional relational database system and XML structure. It consists of two components, namely: information model and control model. This paper sets forth the principle to design, the representation of and the way to implement the information and control model of the workflow engine, respectively. A prototype of this workflow engine has been applied to two project, which shows the application of the workflow engine can markedly shorten the cycle of the development critical business applications.