QoS-aware Middleware for Web Services Composition
Zeng, Liangzhao, Benatallah, Boualem, Ngu, Anne, Dumas, Marlon, Kalagnanam, Jayant, & Chang, Henry (2004) QoS-aware Middleware for Web Services Composition. IEEE Transactions on Software Engineering, 30(5), pp. 311-327.
The paradigmatic shift from a Web of manual interactions to a Web of programmatic interactions driven by Web services is creating unprecedented opportunities for the formation of online Business-to-Business (B2B) collaborations. In particular, the creation of value-added services by composition of existing ones is gaining a significant momentum. Since many available Web services provide overlapping or identical functionality, albeit with different Quality of Service (QoS), a choice needs to be made to determine which services are to participate in a given composite service. This paper presents a middleware platform which addresses the issue of selecting Web services for the purpose of their composition in a way that maximizes user satisfaction expressed as utility functions over QoS attributes, while satisfying the constraints set by the user and by the structure of the composite service. Two selection approaches are described and compared: one based on local (task-level) selection of services and the other based on global allocation of tasks to services using integer programming.
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|Item Type:||Journal Article|
|Keywords:||Web Services, Service, oriented Architecture, Quality of Service|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2004 Institute of Electrical and Electronics Engineers|
|Copyright Statement:||Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.|
|Deposited On:||13 Jul 2006|
|Last Modified:||29 Feb 2012 13:08|
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