基于Web的PDM系统中安全服务的研究

Research on security service of PDM system based on Web

PDM系统是管理现代企业产品数据的一种新的思想和技术,在信息技术和网络化制造技术的发展的驱动下,PDM的思想内涵和外延不断扩大,体系结构也转向基于Web的分布式多层结构。构建于Internet的开放的网络环境上的PDM系统无疑面临着更严峻的安全考验。本文探讨了网络环境下为动态联盟等虚拟企业提供产品信息管理功能的PDM系统的安全问题。分析了国内外PDM系统安全服务的不足之处后,提出了具体的安全需求。详细介绍了Internet环境下增强的PDM安全服务构架,强调了适用于虚拟企业联盟的PDM系统的身份认证和访问控制技术的具体实现方案。

PDM is a new information management concept and technology for the enterprise to manage product data. Propelled by the development of the information technology and networked manufacturing, the concept of the PDM is extended and the system is expanded to the distribution, which bring more severe security problems to the PDM system. We analysis the security problems of the PDM system which implemented in the Virtual Enterprises or Dynamic Alliance, and present the detailed security requirements based on the analysis of the shortcoming of the current PDM security. We also present the enhanced security services for the internet based PDM system. The approach of the authentication and authorization for the PDM in the virtual enterprise is also proposed in the end.