基于 PDM的权限管理研究

权限管理是产品数据管理(PDM)系统的重要组成部分。PDM系统自身的复杂性决定了权限管理是多种要素共同作用的结果，在实施过程中要充分考虑各种要素的影响。这里给出了权限管理的定义，以人员、数据、位置、状态和操作作为权限管理的基本组成要素，分析了各种要素在权限管理中的不同影响，以及各要素间的相互关系；并在此基础上提出了权限管理的三条基本原则。

Research on access control management based on PDM

The management of access control is a primary aspect in produ ct data management (PDM) system. The complexity of PDM system decides that the m anagement of access control is made up of many elements. In the implementation o f PDM, the influences of all the elements should be considered. This paper gives the definition of the management of access control, and puts participants, data , positions, states, and actions forward as the basic elements of the management of access control. In this paper, the effects and relations of the elements are also analyzed, and three principles are summarized based on all the analyses be fore.