For example, use of portlets that invoke Web services at the user interface level and the implications on the functioning of that layer.

例如，在用户接口级别上调用Web服务的portlet的使用，以及在此层机能上的含意。

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The Software as a Service (SaaS) level provides an environment for the end-user to access an application and use it.

Software as a Service (SaaS) 层为最终用户提供了访问和使用应用程序的环境。

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This scheme use different authentication mechanism to authenticate users of different level to ensure the mobility and security of user account.

该方案对于不同权限级别的用户，采用分级的身份鉴别技术，充分保证了账户的移动性和访问的安全性。

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These consumerized tools enable people to better use and interpret information: they are easier to maintain, and have a higher satisfaction level with the user base than any previous generation of tools.

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