Journal
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
Volume 19, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/ijerph19042391
Keywords
smart home; interface design; touch button; user performance
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This study investigated the effects of button features on user performance in smart home interfaces. The results showed that button size and graphics/text ratio significantly influenced user performance in both age groups, while icon style only affected the senior group. Elderly participants preferred larger buttons with larger texts and skeuomorphic icons, while young participants preferred equal-sized graphics and text.
Touch technology-based smart homes have become increasingly prevalent, as they can help people with independent daily life, especially for the elderly. The aim of this study was to investigate the effects of button features (i.e., button size, graphics/text ratio, and icon style) in smart home interfaces on user performance across two age groups. Participants in the young group (n = 15) and senior group (n = 15) completed a clicking task. Button size ranged from 10 mm to 25 mm with 5 mm increments. The three levels of graphics/text ratio were 3:1, 1:1, and 1:3, while icon style was either flat or skeuomorphic. Results showed that button size and graphics/text ratio had significant effects on user performance in both groups, whereas icon style only had an effect in the senior group. It was observed that the elderly were fond of buttons with a larger size of 20 mm with larger texts and skeuomorphic icons, whereas the young preferred a button size of 15 mm with equal-sized graphics and text. These results may help to improve the accessibility and usability of smart home interface design.
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