基于模态逻辑的PDM权限管理方法研究

用户权限管理是PDM系统设计的重要环节，是保证系统安全运行的基础。通过深入分析基于角色的访问控制原理，建立了权限管理模型，提出了一种可行的基于模态逻辑的动态权限设置策略，使得对权限的分配简洁明了，实现了动态权限管理，提高了用户权限管理效率。

Research of PDM Privilege Management Based on Mode Logic

User privilege management is an important part of PDM system, and safe assurance of the system. By thoroughly analyzing the principle of role-based access control, this paper sets up privilege management model, brings forward a feasible strategy of dynamic privilege setup based on mode logic, which simplifies the privilege distribution, realizes dynamic privilege management and enhances the efficiency of user privilege management.