Composition-oriented Service Discovery. Sara Corfini

Composition-oriented Service Discovery



Download Composition-oriented Service Discovery



Composition-oriented Service Discovery Sara Corfini ebook pdf
Publisher: VDM Verlag
Language: English
Page: 16
ISBN: 3639041569, 9783639041569

Web services are emerging as a promising technology for the development of next generation distributed heterogeneous software systems. Some prominent challenges for Web services are the discovery of services which match some given requirements, the composition of services into new complex applications, and the safe replacement of (sub)services.The primary objective of this thesis is to define a suitable technique for a semantics- and behaviour-aware service discovery, capable of satisfying complex client requests which specify the ontology-annotated inputs and outputs, and (possibly) the expected behaviour of the service to be found.We tackle the discovery, composition and replacement of services advertised by OWL-S descriptions. First, we present a functional analysis that automatically generates sets of services satisfying the functional requirements of client requests. Next, we describe a behavioural analysis that generates a non-locking composite service by suitably composing the services in a given set. A notion of behavioural congruence for Web services is introduced to check whether the composite service satisfies the behavioural requirements of the query.

About the Author

Sara Corfini is a research fellow at the Department of Computer Science of the University of Pisa, Italy. She obtained her Ph.D. in computer science from the University of Pisa in 2008. Her research interests include service-oriented computing and P2P systems.



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