A methodology for assessing UX dimensions in standardized questionnaires

User Experience (UX) encompasses many and diverse variables, which contributes to making its evaluation a complex task. Self-evaluation through questionnaires is one of the most commonly used ways to evaluate UX, both in isolation and combined with other instruments or techniques, and there are currently many standardized and validated questionnaires that can be readily applied. Our work suggests a set of dimensions to describe different aspects of UX, and then proposes a methodology to quantify and compare how much different questionnaires emphasize each of these dimensions. We then select a set of ten questionnaires to exemplify the use of our methodology by comparing them in a particular case study. The results show that all selected questionnaires focus on only a few of the dimensions. Our research reinforces the importance of knowing different instruments and being able to compare them, choosing the one best suited to the context of use.