Iterative User-Centered Design of the Mobile Device Assessment Tool (MoDAT)

The objective of this manuscript is to describe the iterative user-centered development of the Mobile Device Assessment Tool (MoDAT) and to present early usability results involving persons with disabilities and assistive technology (AT) professionals. Smartphones have become a ubiquitous tool for use in everyday life. However, there are limited tools and resources available for AT providers to assess the needs of persons with disabilities in using smartphones. The MoDAT is being developed to help determine the most effective accessibility and AT options for smartphone use by individuals with functional limitations. A user-centered approach has been implemented, including preliminary guidance by advisory committees, focus groups, and usability testing by persons with disabilities and providers who recommend AT solutions. This process has guided the development of a pilot system that can generate personalized recommendations on smartphone device setup and configuration. The MoDAT consists of a series of simulated typical tasks completed on a smartphone application. Individuals complete these tasks to assess their functional capacity, with data regarding their performance gathered and sent to the provider portal. Data is securely stored in the portal for review to help determine accessibility settings and AT that may improve smartphone use. These results and the iterative process are described in this manuscript. Future research will focus on establishing the psychometric properties of the MoDAT as an assessment tool and outcomes.