Usability analysis of the payment method with an application of digital parking meters with younger and older users

Abstract

This research aimed to identify usability issues in the interaction with a payment application for a digital parking meter system located in Guadalajara, Mexico. A usability test was carried out by twenty participants divided into two groups—ten younger and ten older adults—. The main task evaluated was making a payment using the application. Participants were asked to do the task on two consecutive occasions. Once the interaction with the application finished the usability questionnaires A and B were administered. The results show that younger and older participants found problems and made mistakes when using the system. Younger and older participants suggested the need for modifications to the application. The paper discusses how understanding the experience and needs of both groups of users can help to develop a more accessible and usable app.