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Abstract: User-s perception of product, by essence subjective, is a major topic inmarketing and industrial design. Many methods, based on users- tests, are usedso as to characterise this perception. We are interested in three main methods:multidimensional scaling, semantic differential method, and preference mapping.These methods are used to built a perceptual space, in order to position thenew product, to specify requirements by the study of user-s preferences, toevaluate some product attributes, related in particular to style (aesthetic).These early stages of the design are primordial for a good orientation of theproject. In parallel, virtual reality tools and interfaces are more and moreefficient for suggesting to the user complex feelings, and creating in this wayvarious levels of perceptions. In this article, we present on an example theuse of multidimensional scaling, semantic differential method and preferencemapping for the subjective assessment of virtual products. These products,which geometrical form is variable, are defined with a CAD model and areproposed to the user with a spacemouse and stereoscopic glasses. Advantages andlimitations of such evaluation is next discussed





Author: Jean-Fran├žois Petiot (IRCCyN), Damien Chablat (IRCCyN)

Source: https://arxiv.org/



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