User-Centered Usability Evaluation of the DiaCare App for Diabetes Self-Management: A uMARS Analysis

Background: Diabetes mellitus (DM) is a common illness that requires appropriate self-management for the best health outcomes. Mobile health (mHealth) apps, such as DiaCare, can improve management of DM. However, usability issues must be solved to ensure long-term user involvement and effectiveness. Objective: To assess the usability of the DiaCare app for DM management using quantitative and qualitative approaches. Methods: A total of 100 participants took part, including fifty Type 2 diabetes (T2DM) patients and fifty healthy subjects. Data were gathered using the uMARS tool, which evaluated six domains: interaction, performance, visual appeal, information quality, perceived impact, and subjective evaluation. Results: Healthy subjects demonstrated superior ratings in all domains except perceived impact. The qualitative analysis showed the importance of a personalized, interactive app for DM control. Conclusions: While DiaCare provides benefits, more customization is required to suit the demands of T2DM patients, particularly in terms of personalization and navigation. Future research should focus on social interaction aspects to improve user assistance.