Evaluating PlanTEA: the practice of a UX evaluation methodology for people with ASD

Providing user-friendly software for groups with special needs is crucial. However, there is a lack of specific evaluation methods and techniques adapted to the characteristics and needs of some users, such as those with autism spectrum disorder (ASD). The main objective of this work is to validate a UX evaluation methodology that focuses specifically on the use of systems, products, and services by adults with ASD through a specific use case. This methodology was developed by taking into account the perspectives of UX experts and ASD professionals on the one hand and potential users on the other. It comprises a three-stage validated process based on the UX/ASD model. It focuses on assessing the user experience of systems used by adults with ASD by considering specific tools and techniques for effective evaluation, in contrast to the existing UX methodologies for evaluating software applications for users with ASD that are limited to the use of generic usability analysis tools. The choice of the PlanTEA application is motivated by the fact that it is designed specifically for users with ASD to assist them in their visits to medical centers by planning and anticipating those situations. However, it has not been evaluated from the ASD user experience point of view. Applying this specific methodology for users with ASD has provided significant feedback for improving their satisfaction and perception of PlanTEA before making it available to society. Moreover, the methodology has been proven to be a powerful tool in the whole process of the UX evaluation of PlanTEA, allowing for more comprehensive UX assessments and reporting.