An approach to the quantitative evaluation of Grid services: Research Articles

Authors:
Sergio Andreozzi;Paolo Ciancarini;Danilo Montesi;Rocco Moretti
Affiliations:
INFN-CNAF, 40127 Bologna, Italy and Department of Computer Science, University of Bologna, 40127 Bologna, Italy;Department of Computer Science, University of Bologna, 40127 Bologna, Italy;Department of Mathematics and Informatics, University of Camerino, 62032 Camerino, Italy;Department of Computer Science, University of Bologna, 40127 Bologna, Italy
Venue:
Concurrency and Computation: Practice & Experience - First International Workshop on Emerging Technologies for Next-generation GRID (ETNGRID 2004)
Year:
2006

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Abstract

In the context of the progressive incarnation of Grid systems in terms of a Service Oriented Architecture, it is essential to improve the automatic evaluation and selection of Grid services. Current mechanisms for service evaluation lack expressiveness as regards the representation of service requesters' expectations. In this paper, we present a model for the quantitative expression of service attributes, for the association of the possible values of these attributes with the requester satisfaction and for the aggregation of a set of satisfactions in an overall score by means of different aggregation logics. The proposed approach enriches the expressiveness of the mechanisms for the evaluation of Grid services. Copyright © 2005 John Wiley & Sons, Ltd.