毕业设计（论文）-基于J2EE的工作流引擎技术的研究与实现.doc

*****大学本科毕业论文
基于J2EE的
工作流引擎技术的研究与实现
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摘要
工作流技术为工作流自动化和构建流程应用提供基础平台,实现了流程逻辑
与业务逻辑的分离,支持业务流程的分析和规范化定义以及业务单元的自动组装,
降低了复杂流程应用的开发难度,提高应用系统的管理效率。
在工作流管理联盟(Workflow Management Coalition,WfMC) 给出的参考模型中,工作流引擎是工作流管理系统的核心,是企业经营过程的任务调度器和企业资源分配器。在采用工作流支持其经营过程的企业,工作流引擎可以看成是企业的业务操作系统,它的功能包括解析过程定义、创建过程实例并控制其执行、调度各项活动等,因此工作流引擎的性能和可靠性就直接决定了企业经营过程的运行效率和安全性。
论文首先介绍了工作流相关概念、应用领域,以及工作流引擎的分析与设计;然后描述了JBPM的工作原理,详细介绍了OA系统公文流转部分的实现;最后,给出对工作流引擎开发的总结和展望。

关键词:工作流;工作流引擎;OA;JAVAEE

ABSTRACT
The workflow technology provides the foundation platform for the workflow automation and the construction of application. It has realized the separation of the process logic and the business logic. It supports the analysis of business process and the standardized definition as well as the automatic assembly of service unit. And it reduces difficulty of the development of plex application. It raises managerial effectiveness of application system.
According to the reference model giving by anization of the Workflow Management Coalition, Workflow engine is the core of Workflow Management System, which is the Task scheduler and Distributor resources of the enterprise business process. In the enterprise of which business process supported by Workflow, Workflow engine can be seen business operating system of the enterprise, which interprets the process description, controls the instantiation of processes and sequencing of activities, and so on. Therefore the performance and reliability of Workflow engine determine the efficiency and security of the enterprise business process directly.
This paper firstly introduces relevant theory and applied field of Workflow, and the analysis and design of Workflow engine. And then the paper explains the principle of the workflow engine JBPM (Java Business Process Management) and the detail implementation of the operation of the document. Finally, the summary and the prospect of the workflow engine software are given.