Draw TRBAC who haves time constraint control pattern, and uniting the practice put up the system access control based on characters.

引入含有时间约束的TRBAC控制模型，结合实践构筑了系统的基于角色的访问控制。

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However, this is not necessarily a security concern since the file system access control mechanism usually provides sufficient protection.

不过您也不必担心安全问题，因为文件系统访问控制机制通常都可以提供充分的保护。

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The primary value of this approach is to control file system access by applications.

这种方法的主要价值在于控制应用程序对文件系统的访问。

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And for those who also opt for the Voice-Activated Navigation System, AppLink will integrate app access and control through the system's 8-inch touch screen.

ENGADGET: Ford SYNC AppLink hands-on in a little green Fiesta

The elites in any system not only have more political and economic power, they also have more access to information and control the distribution of information in any given system.

FORBES: The Mutual Knowledge Revolution

Furthermore, the COOLPIX P7700's intuitive ergonomics and control system allows the user to easily access menus and manual controls, ensuring fluid operation.

ENGADGET: Nikon intros flagship Coolpix P7700 for prosumers, diminutive Coolpix S01 for fashionistas