Research On Reliability Of Trustworthy Web Service

With the in-depth researches on the information services, trusted services and trustworthynetwork become the key point. Way to improve the correctness and reliability of the service in anopen and dynamic network environment has become a big challenge.In order to solve the problems, from the perspective of service provider, we propose amulti-factored trust calculation method, and on this basis, to analyze and to achieve a measure ofthe risk for the service provider, which greatly enhance the credibility of the service provider.At the same time, from the service point of view, a skyline-based dynamic and trustworthyservice selection method is proposed. Considering QoS and trust of services, we combine the twofactors, using Skyline together with projection model, to select services.Based on above, on the users’behalf, we extend SOAarchitecture, propose feedback descriptionlanguage (FBDL), modeling users’ feedbacks, in order to predict the value of service reliability,guiding user to select redundant services, ensuring the implementation of the selected servicecorrectly.We analysis the demand of trust when select a service, address the key technology to optimizeservice selection and propose the method to predict service reliability with trust.