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Dynamic service selection in workflows using performance data

Walker, David William, Huang, Lican, Rana, Omer Farooq and Huang, Yan 2007. Dynamic service selection in workflows using performance data. Scientific programming 15 (4) , pp. 235-247.

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Abstract

An approach to dynamic workflow management and optimisation using near-realtime performance data is presented. Strategies are discussed for choosing an optimal service (based on user-specified criteria) from several semantically equivalent Web services. Such an approach may involve finding "similar" services, by first pruning the set of discovered services based on service metadata, and subsequently selecting an optimal service based on performance data. The current implementation of the prototype workflow framework is described, and demonstrated with a simple workflow. Performance results are presented that show the performance benefits of dynamic service selection. A statistical analysis based on the first order statistic is used to investigate the likely improvement in service response time arising from dynamic service selection.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Computer Science & Informatics
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Publisher: IOS Press
ISSN: 1058-9244
Last Modified: 04 Jun 2017 04:34
URI: http://orca.cf.ac.uk/id/eprint/41300

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