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A symbolic approach for the verification and the test of service choreographiesNguyễn, Huu Nghia (Hữu Nghĩa) 31 October 2013 (has links) (PDF)
Service-oriented engineering is an emerging software development paradigm for distributed collaborative applications. Such an application is made up of several entities abstracted as services, each of them being for example a Web application, a Web service, or even a human. The services can be developed independently and are composed to achieve common requirements through interactions among them. Service choreographies define such requirements from a global perspective, based on interactions among a set of participants. This thesis aims to formalize the problems and attempts to develop a framework by which service choreographies can be developed correctly for both top-down and bottom-up approaches. It consists in analyzing the relation between a choreography specification and a choreography implementation at both model level and real implementation level. Particularly, it concerns the composition/decomposition service design, the verification, and the testing of choreography implementation. The first key point of our framework is to support value-passing among services by using symbolic technique and SMT solver. It overcomes false negatives or state space explosion issues due by abstracting or limiting the data domain of value-passing in existing approaches. The second key point is the black-box passive testing of choreography implementation. It does not require neither to access to source codes nor to make the implementation unavailable during the testing process. Our framework is fully implemented in our toolchains, which can be downloaded or used online at address: http://schora.lri.fr.
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A symbolic approach for the verification and the test of service choreographies / Une approche symbolique pour la vérification et le test des chorégraphies de servicesNguyễn, Hữu Nghĩa 31 October 2013 (has links)
L'ingénierie orientée services est un nouveau paradigme pour développer des logiciels distribués et collaboratifs. Un tel logiciel se compose de plusieurs entités, appelés services, chacun d'entre eux étant par exemple une application Web, un service Web, ou même un humain. Les services peuvent être développés indépendamment et sont composés pour atteindre quelques exigences. Les chorégraphies de service définissent ces exigences avec une perspective globale, basée sur les interactions entre des participants qui sont implémentés en tant que services. Cette thèse vise à formaliser des problèmes et tente d'élaborer un environnement intégré avec lequel les chorégraphies de services peuvent être développés correctement pour les deux types d'approches de développement: l'approche descendante et l'approche ascendante. Elle consiste à analyser la relation entre une spécification de chorégraphie et une implémentation de la chorégraphie au niveau du modèle et aussi au niveau de l'implémentation réelle. Particulièrement, il s'agit de la composition/décomposition des services, la vérification, et le test de l'implémentation de chorégraphie. Le premier point-clé de notre environnement intégré est de représenter le passage de valeurs entre les services en utilisant la technique symbolique et un solveur SMT. Cette technique nous permet de réduire les faux négatifs et de contourner le problème d'explosion combinatoire de l'espace d'états, ces problèmes sont durs à l'abstraction et à l'énumération des valeurs pour les approches existantes basées données. Le second point-clé est le test passif boîte noire de l'implémentation de chorégraphie. Il ne nécessite pas d'accéder au code source, ni de rendre indisponible l'implémentation pendant le processus de test. Notre environnement intégré est mis en œuvre dans nos outils qui sont disponibles en téléchargement ou à utiliser en ligne à l’adresse http://schora.lri.fr. / Service-oriented engineering is an emerging software development paradigm for distributed collaborative applications. Such an application is made up of several entities abstracted as services, each of them being for example a Web application, a Web service, or even a human. The services can be developed independently and are composed to achieve common requirements through interactions among them. Service choreographies define such requirements from a global perspective, based on interactions among a set of participants. This thesis aims to formalize the problems and attempts to develop a framework by which service choreographies can be developed correctly for both top-down and bottom-up approaches. It consists in analyzing the relation between a choreography specification and a choreography implementation at both model level and real implementation level. Particularly, it concerns the composition/decomposition service design, the verification, and the testing of choreography implementation. The first key point of our framework is to support value-passing among services by using symbolic technique and SMT solver. It overcomes false negatives or state space explosion issues due by abstracting or limiting the data domain of value-passing in existing approaches. The second key point is the black-box passive testing of choreography implementation. It does not require neither to access to source codes nor to make the implementation unavailable during the testing process. Our framework is fully implemented in our toolchains, which can be downloaded or used online at address: http://schora.lri.fr.
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