Zhiqing Shao

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In the early service transactions, quality of service (QoS) information was published by service provider which was not always true and credible. For better verification the trust of the QoS information was provided by the Web service. In this paper, the factual QoS running data are collected by our WS-QoS measurement tool; based on these objectivity data,(More)
—As computer systems become increasingly internetworked, a challenging problem faced by researchers and developers of distributed real-time and embedded (DRE) systems is devising and implementing an effective shedulability strategy that can meet real-time requirements in varying operational conditions. In this paper, an extended Place-timed Petri nets(More)
—QoS is of paramount importance for Web services to function. However, it is a challenging problem to construct services that meet user's QoS expectation. This paper proposes an optimization method for service selection in constructing applications through service composition. In order to make quality rating accurate, ingredients of service reputation and(More)