Title :
QoS-Aware Services Replacement of Web Service Composition
Author :
Yin, Keting ; Zhou, Bo ; Zhang, Shuai ; Xu, Bin ; Chen, Yixi
Author_Institution :
Dept. of Comput. Sci. & Eng., Zhejiang Univ., Hangzhou, China
Abstract :
The component service in Web service composition may fail or degrade in QoS thus needs to be replaced. In this paper, we propose a novel approach for services replacement of the composition. The target service could be replaced individually, or it could be replaced with its related services in the composition as a whole by a more complex service. In this way, far more choices will be available to repair the composition. We also present a mechanism to select the optimal service for replacement based on QoS in two phases: preliminary selection and ranking. Evaluation shows the effectiveness of our approach.
Keywords :
Web services; quality of service; QoS-aware service replacement technique; Web service composition; optimal service; preliminary ranking; preliminary selection; Computer science; Costs; Degradation; Information technology; Intserv networks; Linear programming; Service oriented architecture; Web services; QoS; service replacement; web service composition;
Conference_Titel :
Information Technology and Computer Science, 2009. ITCS 2009. International Conference on
Conference_Location :
Kiev
Print_ISBN :
978-0-7695-3688-0
DOI :
10.1109/ITCS.2009.191
