例如，对于队列，使用一个MQQUEUE概要文件来控制对该队列的访问，但是mqadmin类中的其他概要文件用于控制上下文和用户安全性。
For example, for a queue, an MQQUEUE profile is used to control MQI access to the queue, but other profiles in the MQADMIN class are used to control context and alternate user security.
在第二个阶段，每个登录模块提交它的登录的结果，用在登录阶段获取的凭证更新当前访问控制上下文的JAAS Subject。
In the second phase, each login module commits the outcome of its login, updating the JAAS Subject of the current access control context with credentials acquired during the login phase.
讨论了数据库细粒度访问控制的几种常见技术，并结合实例介绍了如何使用VPD、应用上下文和视图来构建企业细粒度访问控制体系。
The paper describes the theory of several technologies, such as VPD, Application Context and View, of Fine-grained Access and how they work together with the explanation of an example.
通过实际应用来看，应用上下文技术可以用于提高细粒度访问控制的性能，从而提高数据库的安全性。
Application context can be useful for the purposes of enforcing fine-grained access control and enhances the security of database.
本文提出了一个上下文感知的访问控制模型(DCAAC)，D CAAC扩展了RBAC模型，增加了上下文约束。
In this paper, we present an access control scheme that can resolve these issues, and propose a dynamic context-aware access control model (DCAAC) which extends RBAC with context constraints.
该模型从用户证书、时间约束、XML文档分类等方面对传统的RBAC模型进行了扩展，以实现基于内容的时间上下文敏感的多粒度访问控制。
This model extends the traditional RBAC model with user credentials, temporal constraints and XML document classification to enforce a content-based time-aware multi-granularity access control.
该模型从用户证书、时间约束、XML文档分类等方面对传统的RBAC模型进行了扩展，以实现基于内容的时间上下文敏感的多粒度访问控制。
This model extends the traditional RBAC model with user credentials, temporal constraints and XML document classification to enforce a content-based time-aware multi-granularity access control.
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