Mobile Application Design for the Elderly to Check Subjective Cognitive Change

Abstract

This study aimed to detect changes in cognitive levels early and design a user interface (UI) for mobile applications. This helps prevent cognitive degradation by continuously assessing cognitive changes in the elderly through changes in activities of daily living. Case studies were conducted prior to the application of the UI design. The concept and functions of the application were classified as 'everyday check,' 'easy for everyone,' and 'comfortable to see' according to the evaluation function, UI, and graphical UI design and were carried out based on previous design guidelines. After prototyping, the application prototypes were produced through the design tool Adobe XD. The usability evaluation was conducted with a heuristic test checklist based on Jakob Nielsen's heuristics. Through this evaluation, positive results of high-quality application design were achieved. This was marked by creating beautiful icons and images and customizing them for the elderly, considering their visual and perceptive characteristics. This study is expected to help prevent mild cognitive impairment and dementia by checking cognitive changes through their daily life patterns and using them periodically.