《A paper prototype usability study of a chronic disease self-managementsystem for older adults》.pdf

A Paper Prototype Usability Study of a Chronic Disease Self-management System for Older Adults D. Tao, C. K. L. Or Department of Industrial and Manufacturing Systems Engineering, The University of Hong Kong, Pokfulam, Hong Kong (taodahuoniao@hku.hk; klor@hku.hk) Abstract - To increase the usability of a new chronic disease evaluated the usability problems and weaknesses of the self-management system, we conducted a usability study of system using a paper prototype test. The main focus was the system among older adults with chronic diseases (n=33) use performance and satisfaction with the system’s using a paper prototype based on the think-aloud approach. interface design among older adults with chronic diseases. The metrics used to judge system usability were the task The evaluation provides guidelines and directions for the incompletion rate, task completion time, frequency of error, modification of the system design and for future system frequency of help, satisfaction, perceived usefulness, and perceived ease of use. We also interviewed the participants analysis. to elicit their comments on the system design. The quantitative data were analyzed using descriptive statistics, and the interview data were content analyzed. Overall, the II. METHODOLOGY participants were able to carry out the self-management tasks with the current design, but several usability issues A. Self-management System Paper P