Abstract:

Web services can not be used without the QoS information. The values of Web services’ QoS attributes are dynamic, such as user experience time. With respect to the static QoS attribute values, the dynamic QoS attribute values can reflect the actual quality status better. A new dynamic updating method, called HDBQoSDPM, of user experience time of Web services is proposed. Classic Web services model does not include the QoS information. In order to verify the correctness of the method, a Web services model, named QoSBWSA, is proposed. In the QoSBWSA model, QoS information processing function is included. The experiment shows that the proposed updating method is feasible and correct.

Key words: web services;QoS;dynamic update;feedback;experience time