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With the growing expansion of web services resources on the internet, more and more users come to appreciate the difficulty of searching self-gratification information from the mass information. This paper analyzes functional attributes and un-functional attributes of Web service resources, builds the mapping relationship between FQoS and QoS, and defines the index system structure of FQoS (Functional Quality of Service) and QoS (Quality of Service, also can be called non-functional attributes)based on the existing theories. It realizes QoS quantification of Web service resource by parameters numeralization and normalization, proposes a Web service description framework and selection mechanism towards balanced perceptions of FQoS and QoS, and then makes a theoretical foundation for Web service description, discovery and selection oriented equilibrium perception of FQoS and QoS.
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