在对等拓扑中不存在中介者的概念。

In the case of peer-to-peer topology there is no notion of a mediator service.

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对复合服务的任何改变都必须重新编写服务中介者的实现。

Any change to composite service requires explicit reprogramming of the service mediator.

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看起来实现服务中介者的最简单方式是使用通用编程语言(图5)。

It seems like the simplest way to implement a service mediator is to use a general purpose programming language (Figure 5).

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