【作者】 刘巍；

【导师】 金志刚；

【作者基本信息】 天津大学 ， 计算机应用技术， 2006， 硕士

【摘要】 计算机辅助设计(CAD),计算机辅助制造(CAM)等技术已经广泛地应用到国内制造业中,大大地提高了企业的劳动生产率。然而当前国内制造企业仍然面临数据集成度低,信息共享程度低和管理落后等许多问题,其原因主要是企业所使用的计算机辅助单元是一些离散孤立互不兼容的系统,这些系统不能很好地进行产品信息的传递和交换,因而无法保证产品信息在工作过程中的完整性和安全性。本文以银川柴油机厂PDM系统开发为背景,依据现代企业分布性,网络化,与原有系统集成等特点,设计了基于分布式工作流的PDM系统,该系统具备工作流程管理,项目管理,用户角色管理等功能,满足现代企业对PDM系统的新需求。本文首先分析了企业应用计算机技术的现状以及对产品数据管理的新需求,介绍了PDM中使用的技术;然后设计了基于Web Services的分布式工作流管理系统的框架并设计实现了分布式工作流引擎的关键部分,为PDM的流程控制提供了基础;最后,将分布式工作流引擎应用到我们设计的银柴分布式PDM系统,直接应用于银川柴油机厂的柴油机结构件的设计过程中。更多还原

【Abstract】 With the implementation of Computer Aided Design(CAD) and Computer Aided Manufacturing(CAM) in most of domestic manufacturing enterprises, product efficiency has been greatly improved. However, there are many problems such as low data integration, low information share and bad management, because these cells used by enterprise are isolated and incompatible systems and product data cannot be transferred and shared in such systems, so the integrity & safety of product data cannot be guaranteed in the course of their operation.Based on the research and exploration of the distributed PDM system of Yin Chuan Diesel Engine Plant, still concerning of the characteristics of modern enterprises like distribution, systematization and integration of original systems, the author designed a new distributed workflow PDM system, which function the managements of manufacturing processes, items and users’roles and so on, further meet the new need of modern enterprises to PDM system.In the first part of this thesis, the author analyzes the present state of enterprises’implementation of computer techniques and their new demands for product data management. Then in the second part, the author designs the outline of distributed workflow management system based on Web Services, and completes the key parts of distributed workflow engines which provide the platform/foundation of the control of PDM working processes. And in the last part, he demonstrates the application of distributed workflow engines into the distributed PDM systems of Yin Chuan Diesel Engine Plant. The distributed workflow engines may directly function in the designing process of diesel engine cells of Yin Chuan Diesel Engine Plant.更多还原