Security is another major area of change with the transition from the WebSphere security authorization model to role-based security.

安全性是更改的另一个主要方面，它体现在从WebSphere安全性授权模型到基于角色安全性的转变中。

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Joint authorization of cloud providers results in a common security risk model that can be leveraged across the Federal Government.

FORBES: Homeland Security Moves To Cloud through GSA IaaS BPA