它形成表中的第四个原则。
同时，应根据培训内容，明确培训应遵循的四个原则。
According to the training content, We should follow four principles in the meantime.
关于服务设计，John Evdemon指出四个原则，并总结出这个文档所表达的目的。
John Evdemon refers to the four tenets regarding service design and summarizes the intent of the paper as follows.
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