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Investigation de l’impact de l’interaction sociale vocale sur l’expérience utilisateur dans les environnements 3D temps-réel immersif

Abstract : User experience has recently become a central issue regarding to the design of products or services. With the democratization of Virtual Reality (VR), more and more economic actors start to being aware of the potential of VR in their respective sectors.In this increasingly dynamic context, user experience (UX) allows the anticipation of users’ and designers’ expectations in order to offer the most satisfying experience as possible. In addition, through the anticipation of user experience, we are able to predict more precisely the adoption level of a technological solution by future users. We have understood today that the only technological dimension is no longer enough to ensure the success of a hardware and/or software product. However, this must fit to the use that user will have of it, and more, it must provide a unique experience, through sensations, perceptions, emotions and thinking, inducing the highest satisfaction possible.A consensus has been established since a long time about the fact that play, create, learn together are more effective and fun than a lonely activity. Share and communicate is a primary need, it is through social interactions with our peers that we are able to fulfill many of our needs, from the most pragmatic to the most ethereal. We have, through the empirical study conducted as part of this thesis, brought a better understanding of the impact of social interactions (vocal mode) on the user experience process in a 3D-IVE (3D Immersive Virtual Environment). Through a literature review based on existing studies of the impact of social interaction on virtual presence (feeling of being there) or on users’ engagement (flow), we propose a more holistic view of this impact by a study focused on the overall user experience.With this aim, we have conducted three experiments immersing pairs of users in a 3D-IVE. By the division of participants into two samples, one being able to vocally communicate, the other not being so, we were able to compare quantitative and qualitative data to highlight the impact of social interactions (voice) on the user experience. Obtained quantitative results have confirmed our assumptions regarding the beneficial impact of social interaction (voice) on user performance. Surprisingly, we also observed that the perceived virtual presence tended to be higher when participants that were not able to communicate vocally, relied on the natural phenomenon of “translucence”. However, we had to balance these results, given to focus groups that have arisen differences regarding to the apprehension of performances, virtual and social presence. This triangulation between objective quantitative, subjective quantitative and qualitative data has confirmed the variable nature of the UX (depending on the user and time) and the strong influence of the nature of the activity of the experimentation.Our studies have validated the ability of simple immersive environments (Minecraft game software) to generate a high level of virtual presence and engagement, and in general, a high level of satisfaction among users. We also provide an insight into methods to be used in this type of context regarding to the design of tasks. Indeed, the same task presented differently can induce a quite dissimilar experience. Despite the difficulty to generalize a result due to the highly variable nature of user experience, we believe that our work will contribute to a greater understanding of the impact of vocal social interactions on UX in 3D-IVEs.
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Submitted on : Tuesday, May 17, 2016 - 5:23:12 PM
Last modification on : Friday, August 5, 2022 - 2:54:00 PM
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  • HAL Id : tel-01316868, version 1


Rémy Eynard. Investigation de l’impact de l’interaction sociale vocale sur l’expérience utilisateur dans les environnements 3D temps-réel immersif. Génie des procédés. Ecole nationale supérieure d'arts et métiers - ENSAM, 2016. Français. ⟨NNT : 2016ENAM0013⟩. ⟨tel-01316868⟩



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