在角色的安全访问控制模型的基础上，提出了基于角色控制的安全工作流模型，使文档在工作流引擎的驱动下，在网络环境中流向正确用户。

And it presents a secure office workflow based on our designed secure access control model to make the document flow to the right figure user in network by workflow engine.

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作为对基于标签的访问控制(LBAC)的DB 2 Viper 2数据库角色增强的一部分，可以对一个角色或组授予或收回安全标签或豁免权。

As part of the DB2 9.5 database roles enhancement to Label-based access control (LBAC), you might grant or revoke security labels or exemptions to or from a role or a group.

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在AIX 6.1中，IBM引入了基于角色的访问控制(RBAC)，这解决了sudo的许多安全和审计问题。

In AIX 6.1, IBM introduced Role Based Access Control (RBAC), which addresses many of the security and auditing concerns of sudo.

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