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VERS UNE CONCEPTION CENTRÉE SUR L'UTILITÉ : Une analyse de la co-construction participative et continue des besoins dans le contexte des technologies émergentes

Abstract : The main objective of this thesis is to assist and to improve the consideration of the usefulness in the design process of artifacts in the context of emerging technologies. It was realized in the context of an Action-Research led in the context of a real design project called 3DChild, which managed to the software named "Appli-Viz‟3D". Two main lines led our work. The first one was to analyze how usefulness and requirement are taken into account in design. From this viewpoint, we were interested in models, methods and tools used or advocated in marketing, industrial engineering, requirement engineering, software engineering, design and ergonomics of design activities. We also explored representations of designer‟s profiles on the usefulness and key elements of the process of construction of requirements. The second main line was to study the effective contribution of actors - designers and users - to the design of innovative artifacts through empirical studies which first aimed to analyze the global dynamics of the process of participative and continuous co-construction of requirements. We then focused on more specific issues of the process. Particularly, we were interested in identifying requirements and in the proposal of specifications by different designer‟s profiles. We then studied the prioritization of requirements by different user‟s profiles and development of requirements during sessions of evaluation of the software Appli-Viz'3D in a participative context. After discussing the results of our studies, we propose a model that formalizes the relationship between the retrospective and the prospective universes of the usefulness, the potential usefulness and the real usefulness of the artifact. In conclusion, we summarize the main contributions of this research and the perspectives they open. Our theoretical contributions concern the demonstration of a lack of a totally shared representation by the designers of the concepts of usefulness and requirements; the highlighting of the complementary nature of models, methods and tools, used or advocated, associated to an usefulness-centered design process, and the characterization of the process of participative and continuous co-construction of requirements. Our methodological contribution is the extension of the I²I method. The three perspectives are the broadening of the scope of our model, the validation of the proposed extension of the I²I method and the creation of a Living Lab in Laval.
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Submitted on : Tuesday, October 16, 2012 - 2:31:26 PM
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  • HAL Id : tel-00742444, version 1

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Emilie Loup-Escande. VERS UNE CONCEPTION CENTRÉE SUR L'UTILITÉ : Une analyse de la co-construction participative et continue des besoins dans le contexte des technologies émergentes. Autre. Université d'Angers, 2010. Français. ⟨NNT : ⟩. ⟨tel-00742444⟩

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