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Towards Improving the Availability of Service Compositions
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2007 (English)In: Digital EcoSystems and Technologies Conference, 2007. DEST '07. Inaugural IEEE-IES, IEEE Press, 2007, 1, , 3 p.Conference paper, (Refereed)
Abstract [en]

The proliferation of open Internet-scale service-oriented platforms based on standards, such as WSDL, SOAP and BPEL, enables the composition of independent Web services into new value-added services. Such service compositions define the information flows between autonomous and potentially heterogeneous services across the boundaries of independent provider organisations. The availability of individual services in such digital ecosystems is likely to be variable due to fluctuating usage load and resource limitations imposed by a service provider's infrastructure. This problem becomes more acute as the number of services in a composition increases. This paper presents a mediation model for improving the availability of composed services. The mediation model masks failures in a service composition by transparently selecting (and executing) an alternative composition at runtime. Service consumers use a common interface to a set of functionally equivalent service compositions while a selection mechanism identifies the most suitable (alternative) service composition. An evaluation of our implementation of the proposed mediation model demonstrates that the consumer perceived availability of value-added services can be improved significantly

Place, publisher, year, edition, pages
IEEE Press, 2007, 1. , 3 p.
National Category
Computer and Information Science
Identifiers
URN: urn:nbn:se:ri:diva-22305DOI: 10.1109/DEST.2007.371948ISBN: 1-4244-0470-3 (print)OAI: oai:DiVA.org:ri-22305DiVA: diva2:1041850
Conference
IEEE International Conference on Digital Ecosystems and Technologies (DEST'07), 21-23 Feb 2007, Cairns, Australia
Available from: 2016-10-31 Created: 2016-10-31 Last updated: 2017-08-10Bibliographically approved

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CiteExportLink to record
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Citation style
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Output format
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