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Erschienen in:
2010 | OriginalPaper | Buchkapitel
Service Composition with Pareto-Optimality of Time-Dependent QoS Attributes
verfasst von : Benjamin Klöpper, Fuyuki Ishikawa, Shinichi Honiden
Erschienen in: Service-Oriented Computing
Verlag: Springer Berlin Heidelberg
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Quality of Services (QoS) plays an essential role in realizing user tasks by service composition. Most QoS-aware service composition approaches have ignored the fact that QoS values can depend on the time of execution. Common QoS attributes such as response time may depend for instance on daytime, due to access tendency or conditional Service of Level Agreements. Application-specific QoS attributes often have tight relationships with the current state of resources, such as availability of hotel rooms. In response to these problems, this paper proposes an integrated multi-objective approach to QoS-aware service composition and selection.