第一个方法只是设置要访问的目标对象。

The first method just sets a target object to be accessed.

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然后使用所展示的方法来访问并迭代所有目标数据。

Then use the methods shown to access and iterate over all the target data.

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目标是要创建一组信息服务，以它们作为访问企业信息的权威的、唯一且一致的方法。

The goal is to create a set of information services that becomes the authoritative, unique, and consistent way to access the enterprise information.

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