工作流技术及其在采购管理系统中的应用研究

【作者】 程旭；

【导师】 侯开虎；

【作者基本信息】 昆明理工大学 ， 机械制造及其自动化， 2008， 硕士

【摘要】 工作流是在企业级计算中为业务过程建模和实现业务过程重组的软件技术。工作流的内容就是一系列相互衔接,自动进行的业务活动或任务。工作流管理系统是通过软件来定义、创建、管理和优化工作流执行的系统。工作流的目标是使企业中大量的任务和活动能够协调一致运行,能够在正确的时间将正确的信息传递给正确的人,从而完成正确的业务流程。工作流管理系统的应用,实现处理的自动化或部分自动化,可以加速企业内部商务和管理流程处理的速度,提高处理的效率。本文首先介绍了工作流的基本概念及工作流技术的研究现状和发展趋势,引入了工作流管理联盟(Workflow Management Coalition,WfMC)所定义的工作流管理系统的参考模型。采用基于J2EE(Java 2 Platform Enterprise Edition)技术的体系架构,用于解决系统结构和能力上的不足,能够支持异构、自治、分布的环境,支持分布式对象计算,从而整个工作流管理系统具有开放性、可移植性和可重构性。其次,对整个工作流管理系统进行总体设计,确定系统的主要功能和多层次的体系结构;分别探讨了其中的工作流模型、工作流引擎、工作流接口和功能界面等关键部分的设计,并着重对工作流模型和工作流引擎两部分进行了深入的研究。在以往工作流模型的基础上设计出了自己的工作流模型,并以EJB组件为基础构件,开发出一个轻量级的工作流引擎。在以上工作的基础上,结合信息系统的发展需要,使用面向对象的方法开发了基于J2EE技术和Web技术的工作流管理系统。最后,针对目前制造业采购管理信息系统中,对采购业务流程变更缺乏柔性的问题,将本文设计开发的工作流管理系统应用于采购管理系统中,验证了所开发的工作流管理系统及其工作流引擎技术上的可行性,为有效地解决由于采购管理部门组织结构的变动或其他因素而引起的业务流程的变更,从而导致整个系统重新构建的问题提供一种参考技术解决方案。更多还原

【Abstract】 Workflow is a type of technology which is used in operation modeling and realizating business processes re-engineering in the business calculation. The content of workflow is a serial of connection with each part, taking action of operation activity or mission automatically. Workflow manage system is a system that is designed to define, initiate, manage and optimize workflow by software. The goal of workflow is to make generous assignments and activities to coordinate well with one another and to send the correct information to the right person at exact time, which make sure to accomplish the correct operation flow. The application of workflow manage system can accelerate the internal business and management flow, rise the efficiency of dealing and realizing dispose automation or semiautomation.Basic concept and research status quo of workflow has been first introduced in this paper, the author has provided the workflow reference model defined by Workflow Management Coalition, and has designed a workflow management system based on J2EE(Java 2 Platform Enterprise Edition) and Web technologies according to the reference model and analysis of real business requirements by using object oriented method. A solution based on J2EE platform has been raised according to the reference model of workflow management system, aiming directly at the shortage of distributed workflow control system, such as the awkwardness in the aspect of workflow definition and the difficulty of the complex workflow definition and so on. Some key parts have been discussed, containing workflow model, workflow engine, workflow interface, and its functiona form. Focusing on the workflow model and the workflow engine, the author has made a detail research, has designed his own workflow model based on the former ones, has developed a EJB component-based lightweight workflow engine, and has introduced the structure and logic of the engine in detail note.A practical process of procurement has been used as an example to test the workflow management system which has been redesigned and has been developed according to this paper. The desertation has impled the coordination and sharing of information and data of manufacturing enterprises’ purchasing sector, and has promoted standardization, platform and automation of the purchasing management system. The purpose of this study is to provide a reference solution for modern manufacuring enterprises to achieve Business Process Reengineering, and enhance its operational efficiency.更多还原