In order to improve system performance, MSDA introduces access decision cache.
为了提高系统性能，MSDA在客体管理器中引入了访问判定缓存。
In addition, MSDA adopts access context stack to support controlled access mechanisms such as views and stored procedures.
此外还引入了访问上下文栈来支持视图和存储过程这类的受控访问机制。
MSDA not only solves the problem of fine-grained access control and controlled access mechanisms, but also minimizes the influence on the original system structure and system performance.
MSDA主要解决了多策略框架对细粒度访问控制和受控访问机制支持不足的问题，并把体系结构实施对原有系统结构和对系统性能的影响控制在较小的范围内。
MSDA not only solves the problem of fine-grained access control and controlled access mechanisms, but also minimizes the influence on the original system structure and system performance.
MSDA主要解决了多策略框架对细粒度访问控制和受控访问机制支持不足的问题，并把体系结构实施对原有系统结构和对系统性能的影响控制在较小的范围内。
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