Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Dementia
- A group of progressive neurological conditions that affect memory, thinking, orientation, comprehension, language, and judgment. Alzheimer's disease is the most common form. Dementia significantly impacts how people interact with digital technology, often requiring simplified…
- Dementia-Friendly(also: Dementia Friendly Community, Dementia Inclusive)
- An approach to designing environments, services, programs, and communities that are accessible, supportive, and inclusive of people living with dementia. A dementia-friendly community enables people with dementia to participate in social life, access services, and maintain…
- Design for Dynamic Diversity(also: D3, DDD)
- A design paradigm proposed by Gregor, Newell, and Zajicek (2002) that explicitly accounts for the fact that human abilities are not static but change dynamically over time, particularly as people age. Unlike traditional approaches that design for a fixed "typical" user or treat…
- Dialogue of Care(also: Care Dialogue, Care Communication)
- The ongoing exchange of information, observations, and concerns between a person receiving care and their carers — whether professional, familial, or informal. In assistive technology and telecare contexts, the dialogue of care refers to the shared understanding that develops…
- Digital Immigrant(also: Digital Non-Native)
- A person who grew up before the widespread adoption of digital technology and has had to learn digital skills later in life, as opposed to a digital native who grew up immersed in technology. In accessibility research, older adults are often characterized as digital immigrants…
- Digital Native
- A person who grew up using digital technologies such as computers, the Internet, and mobile devices from an early age. Digital natives are presumed to have intuitive familiarity with digital interfaces and often learn new technologies through trial-and-error and exploration. The…
- Digital Television(also: DTV, Digital TV, iTV)
- Television broadcasting and receiving technology that uses digital signals rather than analogue, enabling additional features such as interactive services, electronic programme guides, on-demand content, and multiple channel packages. Digital television accessibility is a…
- Digital divide(also: Digital gap, Digital inequality)
- The disparity between individuals, households, or communities in access to, use of, and benefits from information and communication technologies. For older adults and people with disabilities, the digital divide encompasses not just access to hardware and internet connectivity,…
- Driving Cessation(also: Driving Retirement, Giving Up Driving)
- The process by which a person stops driving a motor vehicle, either voluntarily or due to age-related decline in cognitive, visual, or physical abilities, medical conditions, or legal restrictions. Driving cessation disproportionately affects older adults and has significant…
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