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1·Business Policies and Rules are peer entities which can be derived and used together to implement Business Policy Directives.

业务策略和规则是对等实体，它们可以一起派生和用来实现业务策略指令。

2·Peer to peer trust model is used in the authorization system, and the trust relationship among entities in grid environment is assessed with trust degree.

系统采用平等信任模型，通过信任度评估网格实体之间的信任关系。