A Framework for the Semantic Composition of Web Services Handling User ConstraintsReportar como inadecuado




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Abstract : In this paper, we present a model of composition for semantic web services based on statechart. The environment is based on a distributed architecture and on semantic and uniform based-ontology and community service descriptions. Thus, the community constitutes a unified, a homogeneous and a consistent access interface for existing heterogeneous e-services. Moreover, based on the OWL-S language, a rich expressivity both in services and user constraints descriptions is provided. In our work, the composition is realized in two steps: the composition of semantic descriptions and then the composition of the underlying e-services instances executions. In this paper, we present the semantic composition which is based on statechart models deduced from OWL-S service descriptions concerning by user request. The purpose is to define the statechart model corresponding to the user request. This model provides a set of strategies of composition execution by taking into account the nondeterministic behaviors of e-services instances and the user constraints.





Autor: Youssef Gamha - Nacéra Bennacer - Guy Vidal-Naquet - Béchir Ayeb - Lofti Benromdhane -

Fuente: https://hal.archives-ouvertes.fr/



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