La prise en compte des affects dans le domaine des interactions homme-machines : quels modèles, quelles méthodes, quels bénéfices ?
Le Travail Humain
Taking into account affects in the design and evaluation of technologies has become an important topic during the last few years. Nevertheless, this approach still raises numerous theoretical and methodological questions. This article aims at contributing to identify the foundations of such an approach. The first part examines the affects contribution in technologies evaluation through an analysis of the main models in the field: usability model, technology acceptance model and user experience. It is shown that user experience seems the most relevant approach to give an account of the complexity of affective reactions in human-computer interactions, despite some limits which are also mentioned. The second part of the article is focused on the relation between pragmatic qualities of the system (usability) and users' affective reactions: are they independent, complementary, etc.? Finally, methodological issues are examined. The choice of affects measurement used to conduct assessments is a critical point. In fact, knowledge about users' affective reactions in human-computer interactions is still limited. Moreover, it appears important to capture emotions dynamic and to have an access to emotions antecedents / factors. In order to contribute to these issues, the benefits and limits of different kind of affects measures are discussed (non verbal measures, combination between physiologic measures and questionnaire, and interviews). The last part presents perspectives about the study of affects in human- computer interactions.