Abstract
The aim of this study is to investigate the problems and needs of users with advanced age and cognitive impairment regarding the design and operation of daily living products. Television remote controls and an electric rice cooker were applied as the research tools, and focus group interviews with control older adults and interviews with individuals with MCI or mild dementia were conducted regarding the operation of the products. The control participants stressed that the operating procedures should not be excessively complex, the number of functions and buttons should not be overly high, and buttons and text should be enlarged. For those with MCI or mild dementia, in addition to the size and number of buttons, text size, and functions, their operation of product interfaces was affected by the complexity of the operating procedures. The solutions recommended by the participants included interface design involving direct operation and voice control.
Highlights
Interface Design for Products forOlder adults attract the attention of designers
Focus groups and individual interviews were conducted with control older adults, older adults with mild cognitive impairment (MCI), and older adults with mild dementia living with family to understand their user needs and the problems they have encountered in using daily living products
The results revealed that the control participants considered the operating interface The results revealed that the control participants considered the operating interface design of technological products primarily from the perspectives of ease of operation (e.g., design of technological products primarily from the perspectives of ease of operation, functions, and prior user experience, whereas the participants with button and text size), functions, and prior user experience, whereas the participants with mild dementia, who were unfamiliar with the operating procedures, preferred clear operating instructions
Summary
Older adults attract the attention of designers. Factors affecting the daily living of older adults, in addition to the decline in personal cognition and motor functions with age, include dementia. Dementia affects the cognitive abilities and short-term memory of many older adults [1,2], along with daily living activities such as social and physical activities [2]. Mild cognitive impairment (MCI) is considered an early symptom of dementia. MCI is a transitional stage from general aging to dementia. The prevalence of MCI has increased substantially [3].
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