Browsing by Author "Talantikite, Hassina"

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    SAWSDL et médiation pour la découverte des services Web
    (2008-04-28) Benna, Amel; Boudjlida, Nacer; Talantikite, Hassina
    Les services Web ont été adoptés par les plus grandes organisations industrielles et commerciales pour l’interopérabilité des systèmes distribués. L’interaction entre leurs composants s’effectue à travers la publication, la recherche et la découverte puis l’invocation. Cependant, leur publication dans l’UDDI ne propose pas une description du service sur la base de ce qu'il offre. L’idée rapportée dans cet article, est d’effectuer une description sémantique des services Web (en SAWSDL) et un stockage des fonctionnalités des services Web, lors de la phase de publication, dans un registre que nous avons appelé base de liens sémantiques. La découverte des services revient à l’interrogation de cette base, qui représente le médiateur entre demandeur et fournisseur de services, et du registre UDDI. Le résultat retourné peut servir de point d’entrée pour une autre interrogation.
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    SAWSDL, mediation and XQUERY for web services discovery
    (ACM, 2008-06) Benna, Amel; Boudjlida, Nacer; Talantikite, Hassina
    Web services have been adopted by large industrial and commercial organizations to achieve interoperability between distributed systems. The interaction between web services components is done through publication, research, discovery and then invocation based on the service's description. However, their publication in an UDDI registry doesn't offer enough description of the service offering. The main idea described in this paper is about having a semantic description of web services (using SAWSDL) and then storing their functionality, during the publication phase, in a register named 'semantic links base'. This base represents the mediator between the service requestor and the service provider and would minimize the search time during the discovery step, because the mapping between the request concepts and the Web services are known in advance. The Web services discovery process is about finding these mappings between the user query, which is defined in a unified manner by referring to an ontology, and the web services functionality. The user request is translated into a query on the 'semantic links base' as well as the UDDI registry. The result returned can then be used as entry point for another query.