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Using inherent service redundancy and diversity to ensure web services dependability

Lookup NU author(s): Dr Anatoliy Gorbenko, Professor Alexander Romanovsky

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Abstract

Achieving high dependability of Service-Oriented Architecture (SOA) is crucial for a number of emerging and existing critical domains, such as telecommunication, Grid, e-science, e-business, etc. One of the possible ways to improve this dependability is by employing service redundancy and diversity represented by a number of component web services with the identical or similar functionality at each level of the composite system hierarchy during service composition. Such redundancy can clearly improve web service reliability (trustworthiness) and availability. However to apply this approach we need to solve a number of problems. The paper proposes several solutions for ensuring dependable services composition when using the inherent service redundancy and diversity. We discuss several composition models reflecting different dependability objectives (enhancement of service availability, responsiveness or trustworthiness), invocation strategies of redundant services (sequential or simultaneous) and procedures of responses adjudication. © 2009 Springer Berlin Heidelberg.


Publication metadata

Author(s): Gorbenko A, Kharchenko V, Romanovsky A

Editor(s): Butler, M., Jones, C., Romanovsky, A., Troubitsyna, E.

Publication type: Book Chapter

Publication status: Published

Book Title: Methods, Models and Tools for Fault Tolerance

Year: 2009

Volume: 5454

Pages: 324-341

Print publication date: 01/01/2009

Series Title: Lecture Notes in Computer Science

Publisher: Springer

Place Published: Berlin; New York

URL: http://dx.doi.org/10.1007/978-3-642-00867-2_151007

DOI: 10.1007/978-3-642-00867-2_15

Library holdings: Search Newcastle University Library for this item

ISBN: 9783642008665


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