计算机工程与科学2013，Vol.35Issue(1)：72-76,5.DOI:10.3969/j.issn.1007-130X.2013.01.012
一种面向PDM系统基于权限位的访问控制方法
An access control method for PDM system based on permission bits
摘要
Abstract
Access control is an important security technology to protect the information system. In this paper, we review the existing access control models and propose the PDM-RBAC model. This model is designed to solve the problems such as inefficiency and difficult management, which exist in the PDM system and are caused by huge amount of data, fine-grained control of data and too many user levels. We use user group hierarchy instead of role hierarchy to decrease permission configuration data and introduce permission hierarchy to manage data permission. Under the application in an enterprise PDM system, we also propose an access control algorithm based on permission bits to solve the conflict caused by negative permissions.关键词
产品数据管理/基于角色的访问控制/访问控制Key words
PDM/ RBAC/ access control分类
信息技术与安全科学引用本文复制引用
刘智,吴刚..一种面向PDM系统基于权限位的访问控制方法[J].计算机工程与科学,2013,35(1):72-76,5.
