RODRIGUES, Erick Santana.
Résumé:
Studies involving the evaluation of the usability of the product interface are usually based only on the direct observation of the user-product interactive process and on the administration of survey instruments, such as
questionnaires or interviews. However, the use of these techniques for data collection does not fill gaps regarding the visual behavior of user. Based on this premise, the objective of this research was to propose a methodological approach for evaluating the usability of software interfaces based on three product views (industry view; expert view; and user view) and the incorporation of eye tracking techniques. To validate this approach, a case study was carried out involving the game Don’t Starve, in which a usability trial was conducted with thirty participants of both genders. Sixteen participants were classified as inexperienced and fourteen as experienced. Five tasks were proposed and data collected from performance measurements, subjective satisfaction survey and eye tracking of participants. The results allow us to infer that the eye tracking indicators are more effective in finding representative differences between the categories of participants than the performance indicators and that there are no correlations between theses indicators in most tasks. Eye tracking indicators also provide data about the visual behavior of participants and
how they process visual information. Finally, the results of the usability assessment allow the detection of issues related to the target product’s interface.
