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QoS Aware Semantic Web Service Composition Approach Considering Pre/Postconditions

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2 Author(s)
Bartalos, P. ; Fac. of Inf. & Inf. Technol., Slovak Univ. of Technol. in Bratislava, Bratislava, Slovakia ; Bieliková, M.

Web service composition is a topic bringing several issues to be resolved. Our work deals with the effectiveness and scalability of service composition. During composition we consider QoS and pre-/post-conditions of single services to create a composite service satisfying the user needs the best. Regarding pre-/post-conditions we propose an approach to fast determination of which services produce results expected by the user, i.e. the post-condition of which services implicates the desired condition defined in the user goal. This paper proposes also an approach to restriction on the service space which provided a dramatic improvement in terms of composition time.

Published in:

Web Services (ICWS), 2010 IEEE International Conference on

Date of Conference:

5-10 July 2010