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Management of Scenarized User-centric Service Compositions for Collaborative Pervasive Environments.

Abstract : Pervasive (or ubiquitous) computing is a paradigm for environments containing distributed interconnected devices that embed electronics. These devices provide a remote access to numerous functionalities that assist us in our daily life. Service-Oriented Architectures are suitable to design software for pervasive environments. Indeed, each device provides its own set of functionalities as services. Without any extra mechanism, users can only use a single service at a time. Nevertheless, their needs usually correspond to scenarios which involve a composition of multiple services, provided by multiple devices. In this thesis, we advocate that a pervasive system must, on the one hand, enable users to easily express their needs through scenario creation and, on the other hand, propose to users a representation of their context so that they can benefit from both their environment and its changes. In addition, the presence of several users implies that users must be able to collaborate. Our contribution, named SaS (Scenarios as Services), fulfills these requirements. It proposes an interoperable approach that adapts to its environment. It provides users with a customizable and persistent representation of their context and includes a scenario description language targetted to users. Scenarios are easy to control, customize and reuse. SaS schedules the step-by-step execution of scenarios to adapt to environmental changes and benefit from user mobility (scenario execution splitted over time on successive distinct sites). Finally, SaS includes scenario sharing mechanisms which are a basis for collaboration. A prototype of SaS, based on industrial standards (e.g., OSGi), proves the feasibility of our contribution and serves for its evaluation on a simple use case.
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https://tel.archives-ouvertes.fr/tel-00790156
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Submitted on : Tuesday, February 19, 2013 - 3:06:22 PM
Last modification on : Sunday, November 20, 2022 - 2:29:49 PM
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  • HAL Id : tel-00790156, version 1

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Matthieu Faure. Management of Scenarized User-centric Service Compositions for Collaborative Pervasive Environments.. Ubiquitous Computing. Université Montpellier II - Sciences et Techniques du Languedoc, 2012. English. ⟨NNT : ⟩. ⟨tel-00790156⟩

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