产品数据管理系统中访问控制模型的研究

Research on Security Service of PDM System Based on Web

产品数据管理(PDM)系统是一种管理现代企业产品数据的新的思想和技术,开放的网络环境和动态的企业环境为PDM系统的实施带来了更多的安全问题。介绍了现有的访问控制技术,分析了分布的PDM系统的访问控制需求,提出了一个新的适用于PDM系统的分层混合访问控制模型。应用实例证明该访问控制模型可以增强PDM系统访问控制的灵活性和PDM系统的安全性。

As a new information management concept and technology for the enterprise to manage product data,Product Data Management(PDM)was propelled by the development of the information technology and networked manufacturing,and the system was expanded to the distribution to be im- plemented in the dynamic enterprise environment,which brought more severe security problems to the PDM system.We introduced the technique of access control,and analysed the access control require- ments of the PDM system which was implemented in the Virtual Enterprises.We presented a dynamic and distributed access control model to enhance the security of PDM.The implementation of the new model illustrates how to enhance the flexibility and the security of PDM access control.