Exploring the Role of Tunnel Vision Simulation in the Design Cycle of Accessible Interfaces

Abstract

Despite the emphasis of involving users with disabilities in the development of accessible interfaces, user trials come with high costs and effort. Particularly considering the diverse range of abilities such as in the case of low vision, simulating the effect of an impairment on interaction with an interface has been approached. As a starting point to assess the role of simulation in the design cycle, this research focuses on allowing sighted individuals to experience the interface under tunnel vision using gaze-contingent simulation. We investigated its implementation reliability through the analysis of empirical tests of prototypes compared between participants under simulation and intended groups. We found that the simulation-based approach can enable developers to not only examine problems in interfaces but also be exposed to user feedback from simulated user trials with necessary evaluation measures. We discussed how the approach can complement accessibility qualities associated with user involvement at different development phases.