在安全方面，采用基于角色的权限管理，增强了系统运行的安全性。
In terms of security, role-based rights management enhances the security of the system in the run.
文章介绍了基于角色的权限管理模型的基本思想及工作原理，并分析了航天器故障诊断系统中权限管理的特征。
This paper analyzes the characteristics of Spacecraft Fault Diagnosis System and the basic idea and principle of Role-Based Access Control model.
论文在对自主访问控制、强制访问控制和基于角色的访问控制的访问控制策略及机制分析、研究基础上，选择并实现了基于角色的权限管理系统。
This paper chooses and realizes the privilege system role-based based on the further research between discretionary access control, mandatory access control and role-based access control.
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