Ounsa Roudiès

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Composing Web services is a convenient means of dealing with complex requests. However, the number of Web services on the Internet is increasing. This explains the growing interest in composing Web services automatically. Nevertheless, the Web services' semantics is necessary for any dynamic composition process. In this article, we present an MDA approach(More)
This paper describes a ViewPoint Oriented design approach and proposes a UML metamodel extension to support this approach. The suggested method uses the concept of viewpoint and a correspondence relationship between modelings elements to guide the designer in the identification of overlappings design models. To support the direct correspondence and the(More)
A lot of works has been especially interested to the functional aspect of Web services. Nevertheless, it is necessary to describe their non-functional properties such as the security characteristics and the quality of service. The WS-Policy standard was recommended in 2007 to describe Web services policies including the non-functional properties. However,(More)
The WS (Web services) description is an important step in the services consumption's cycle. Semantic WS extends the capabilities of a WS by associating semantic concepts in order to enable better search, discovery, selection, composition and integration. Several WS description approaches have been proposed to present a detailed description exceeding the(More)
The current components' retrieval tools offer few services to facilitate a relevant search of these components. They are intended for experts having already a good knowledge of the components' catalogs. However, they are still limited for inexperienced users. In this context, the present contribution aims at analysing and comparing some existing retrieval(More)
Web services Description has been recognized as an interesting paradigm that attracted significant attention from the research community. Currently, several WS description approaches have been presented to complete a detailed description with all the required aspects. The WSDL standard remains incomplete to provide a sufficiently rich description to service(More)