GIS中基于角色的图元授权粒度控制研究

Role-based Geographic Entities’ Authorized Granularity Control in GIS

对深入到图元的细粒度控制进行了研究 ,分析了图元授权粒度需要考虑的各个方面 ,在RBAC理论基础上 ,对该控制做了全面而细致的设计。实践证明 。

This paper gives an analysis of several aspects which should be considered in controlling entities, and makes a thorough and careful design of entities’ authorized granularity control based on the theory of RBAC. The practice has proved that the research of role-based geographic entities authorized granularity control in GIS is really practicable.