The IG-RBAC model is a part of the research work of the Vega Information Grid.

IG - RBAC模型是织女星信息网格研究的一个组成部分。

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This dissertation is based on the research work of the Vega Information Grid project, and addresses the access control mechanism of the information grid.

信息安全很重要的一点就是对关键 信息的 访问进行控制， 访问控制是针对越权使用资源的防御措施。

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This paper is based on the research work of the Vega Information Grid, and investigate the full lifecycle of information grid object-effective relation? virtual relation and physical relation.

文章结合中科院计算所织女星信息网格的工作，对信息网格客体——有效关系、虚拟关系和物理关系，运用全生命周期的方法进行了研究。

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