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QoS Analysis for Web Service Compositions with Complex Structures
PrePrint
ISSN: 1939-1374
Huiyuan Zheng, Macquarie University, Sydney
Weiliang Zhao, Macquarie University, Sydney
Jian Yang, Macquarie University, Sydney
Athman Bouguettaya, RMIT University, Melbourne
Quality of Service (QoS) is a major concern in the design and management of a composite service. In this paper, a systematic approach is proposed to calculate QoS for composite services with complex structures, taking into consideration of the probability and conditions of each execution path. Four types of basic composition patterns for composite services are discussed: sequential, parallel, loop and conditional patterns. In particular, QoS solutions are provided for unstructured conditional and loop patterns. We also show how QoS-based service selection can be conducted based on the proposed QoS calculation. Experiments have been conducted to show the effectiveness of the proposed method.
Index Terms:
Quality of Services, Composite Web Services
Citation:
Huiyuan Zheng, Weiliang Zhao, Jian Yang, Athman Bouguettaya, "QoS Analysis for Web Service Compositions with Complex Structures," IEEE Transactions on Services Computing, 21 Feb. 2012. IEEE computer Society Digital Library. IEEE Computer Society, <http://doi.ieeecomputersociety.org/10.1109/TSC.2012.7>
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