Speeding up web service composition with volatile external information

Authors:
John Harney;Prashant Doshi
Affiliations:
University of Georgia, GA;University of Georgia, GA
Venue:
Proceedings of the 2008 international workshop on Context enabled source and service selection, integration and adaptation: organized with the 17th International World Wide Web Conference (WWW 2008)
Year:
2008

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Abstract

Existing methods for composing Web services assume that compositions are fixed. However, in practice, service environments are often volatile and parameters of participating services may change during the composition. This paper introduces a novel method for composing Web services in the presence of external volatile information. Our approach, which we call the informed-presumptive is compared to previous state-of-the-art approaches for Web service composition in volatile environments. We show empirically that the informed-presumptive strategy produces compositions in significantly less time than the other strategies with lesser backtracks.