A Quantitative Evaluation Model of Group User Experience

This paper explores the problem of user experience evaluation, in particular the quantitative evaluation of group user experience, in the ubiquitous computing environments. Firstly, the classification and definition of four different categories of user groups are proposed and the notion of group user experience is introduced. Secondly, we analyze the quantitative evaluation of group user experience for different user groups and establish a uniform evaluation model for group user experience. Particularly, we employ two quantitative metrics, user rating and user attention duration, as the main criteria for evaluating user experience. At the same time, the intercommunication and differences among group members in the capacity of information acquisition, the degree of correlation with other members and the weight of impact to the overall group user experience are taken into account to form a general quantitative evaluation model of group user experience for different user groups. Finally, we evaluate the effectiveness of the proposed model with preliminary experiments.