最后是简单参与者，它完全依赖于全部参与者。

Finally, there is the Simple Participant, which is entirely dependent on a Full Participant.

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最简单的方法是让参与者通过中央服务注册其 FOAF 文件的 URL，然后中央服务执行聚集。

The simplest way is to have participants register the URL of their FOAF file with a central service, which then does the aggregation.

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争取涉及参与者及产品间的简单交流模式。

Strive for a simple communication model between the involved actors and the product.

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