The role-based user management and the multi-version mechanism were used to support collaborative ontology development of users.
它们分别采用基于角色的用户管理和多版本机制来支持多用户协同的本体开发；
Based on careful research, a project of user management is designed, which can implements dynamic role management, dynamic authorization management, and have a flexible authorization way.
在深入调查研究的基础上，设计了一个能够实现动态角色管理、动态权限管理、授权方式灵活的用户管理方案。
Based on the idea of Role-Based Access Control, this paper presents a user-privilege management method using VJ, which is advantageous for its simplicity, flexibility and security.
借鉴基于角色的访问控制基本思想，结合开发实践，提出了一种用VJ实现用户权限管理的方法。
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