Modélisation des processus cognitifs et affectifs en conception amont : application aux opérations de catégorisation mentale présentes lors des phases génératives

The aim of this thesis is to explore how designers mentally categorize design information during early sketching performed in the generative phase. In conjunction with cognitive aspects of design, we proposed that cognitive and affective processes, involved in this specific phase, should be modeled through understanding designer's mental process and its relationship with early representations (sketches) together. A combination of action research approach and laboratory-based experiments was particularly appropriate for our study. Thus, first, a descriptive model of information processing involving memory theories drawn from cognitive psychology was developed. This model was refined and enriched via empirical studies with experts and novices in the product design domain. In order to formalize cognitive and affective processes of designers, we combined cognitive (concurrent verbalization protocol and questionnaires) and physiological (galvanic skin conductance and eye tracking system) methods. Subsequent analysis finally yielded a model depicting cognitive and affective processes of designers in the generative phase. As an application, based on our model, a list of specifications for developing computational tools dedicated to the generative phase has been applied and validated in the ''GENIUS'' project, which aimed to develop the system for supporting designer's activities in the early stages of design.PARIS-Arts et Métiers (751132303) / SudocSudocFranceF