QoS Information of Interval Number in Web Service Selection

For the accurate QoS information service selection does not reflect the uncertainty of QoS problems, firstly, to analyze the Web service QoS information uncertainty in Web services selection, and describes the QoS bulletin value, demand value and weight constraints of uncertain representation. Then, using interval numbers comparison of methods and close to ideal point multiple attribute decision making method, establish Web services selection based on uncertain QoS information model and simulation experiments. Experimental results:(1) Along with the service each item of QoS attribute optimization, its composite index rises gradually, and becomes the most superior choice from the worst service.(2) The service has the superiority in some attribute, takes the degree along with the consumer the attribute the gradual increase, the service quality synthetic evaluation index also gradually increases. Two results are proved valid QoS information of Web service selection for interval number is correct.