在直接连接的模式中有两个角色：启动者(initiator)(在我们的情况中是Microsoft Word的宏)和提供者(provider)(在我们的情况中是提供数据的J2EE应用程序)。

In the Direct Connection pattern, there are two roles: the initiator (in our case, the Microsoft Word macro) and the provider (in our case, the J2EE application that is serving the data).

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有时客户已经在其环境中定义了一些服务(也许是通过合作伙伴)，不过是直接连接的服务；这种情况导致缺乏灵活性并增加管理成本。

Sometimes clients already have some services defined in their environment (maybe via partners), though directly connected; this leads to lack of flexibility and increased management costs.

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注：默认情况是一个链接连接到子类别，没有显示关系。

Note: Default is a link to the child category, with no relationship exhibited.

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