Posts Tagged ‘inheritance semantics’:

On the Improvement and Implementation of a Role Hierarchies Relationship Model in GEO-RBAC

Secure spatial database,as a very important field in the research of information security,boasts wide applications,whose research is highly confidential since the countries with advanced information technology have been practicing the strategy of prohibiting the export of state-of-art security products to China,including database security products.Consequently,to research and develop independent security database products is a significant measure

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