First of all, the subject definites the factors of customer perceived value and cost related to product and service, establishes the practical foundation.
本文的主体首先界定了经济型酒店产品和服务的顾客感知价值与感知成本因素的构成，奠定了理论的实践支持。
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The paper definites input signal and feedback signal etc. conception using block diagram. Analyses decisive factor and direct effect of extreme nature for feedback.
On the first part, through the research achievements, it definites that civil litigation pattern and civil trial form are the two different concepts, but there is inner connection between them.