WAIM 2004: Advances in Web-Age Information Management pp 478-488 | Cite as
Modeling QoS for Semantic Equivalent Web Services
Abstract
Quality of Service (QoS) is an important factor for selecting a better Web service from numerous semantic equivalent Web services in Web services composition. In this paper, a QoS model (e_QoS) for evaluating semantic equivalent Web services is proposed, In which, the factors used to evaluate Web Services include Accessed Times, Invoked Success Rate, Average Responding Time, Stability Variance, and Customers Estimation. The performance of Web services in Latest Period of Time, the performance in history and the performance estimated by customers are considered together. By experiments, we concluded that e_QoS is effective for estimating Web services, and can improve the quality of web services composition greatly.
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