Web服务QoS灰色评价模型

在分析国内外Web服务QoS定量评价的研究成果和不足之处的基础上,提出了基于灰色系统理论的Web服务QoS定量评价模型,即筛选Web服务QoS评价因子,确定因子权重集,计算各因子与参考基准的灰色关联度;通过应用从QWS数据集中提取的6个世界权威气象机构的气象信息Web服务,得出7个Web服务QoS的实际评价结果,并与其它评价方法进行比较;指出了进一步研究的方向。研究结果表明,该模型符合灰色系统理论的应用特点和Web服务应用的发展方向,作为Web服务选择时不同Web服务质量比选的定量评价工具,为Web服务的可信应用和电子商务的发展奠定了基础。

Web Service QoS Grey Evaluation Mode

Summarizes the achievement and drawbacks of the Web Quantities of Service(QoS) evaluation methods, proposes a new mode of Web service QoS quantitative evaluation based-on grey system theory. The mode selects Web service QoS evaluation factors, and determines the weight set of quality factors, and computes grey relevance degree between quality factors and perfect reference datum. By a real application, we obtain the Web service QoS about weather information from 6 weather institutes in the QWS dataset, compute out the real evaluation results of 7 Web service QoS, compare the results with other evaluation methods, and propose the future work. The resultsshows that the mode fits the application characters of grey system theory and the development direction of Web service. As the tool of Web QoS quantitative evaluation, our model becomes the foundation of Web service trustworthy application and electronic commerce.