You need not worry about how the classes of your task layer will be integrated into your business workflow application.

至于任务层的类要如何集成到业务工作流程应用程序中，您不必过问。

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The BPEL file contains links to partner services that implement the task layer.

BPEL文件包含实现任务层的合作伙伴服务链接。

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Typically, these methods are called within the Task layer.

一般情况下，这些方法在Task层中进行调用。

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The spread of computers through companies has added a third layer of complexity: the task of managing the information systems themselves.

ECONOMIST: Men and machines