Consistency maintenance for constraint in role-based access control model

• Published in: Journal of Zhejiang University. Science Vol. 3; no. 3; pp. 292 - 297
• Main Author: 韩伟力 陈刚 尹建伟 董金祥
• Format: Journal Article
• Language: English
• Published: 2002
• Subjects: 一致性维护; 产品数据管理; 多用户系统; 数据安全; 访问控制
• ISSN: 1009-3095
• DOI: 10.1631/jzus.2002.0292

Constraint is an important aspect of role-based access control and is sometimes argued to be the principal motivation for role-based access control (RBAC). But so far'few authors have discussed consistency maintenance for constraint in RBAC model. Based on researches of constraints among roles and types of inconsistency among constraints, this paper introduces correaponding formal rules, rulebased reasoning and corresponding methods to detect, avoid and resolve these inconsistencies. Finally,the paper introduces briefly the application of consistency maintenance in ZD-PDM, an enterprise-ori-ented product data management (PDM) system.