Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Accelerometer
- A sensor that measures acceleration forces, including the constant force of gravity, along one or more axes. Accelerometers in smartphones and wearable devices detect device orientation, movement, and gestures. In accessibility applications, accelerometer data enables…
- Alternative input device(also: Alternative access method, Switch access)
- Any input method that replaces or supplements standard keyboard, mouse, or joystick interfaces to enable people with motor impairments to operate computers, wheelchairs, and other technology. Examples include sip-and-puff controllers, eye-tracking systems, head switches, voice…
- Augmented reality(also: AR)
- A technology that overlays digital information — such as text, images, highlights, or 3D objects — onto the user's view of the real world, typically through smart glasses, head-mounted displays, or smartphone cameras. In accessibility applications, augmented reality can…
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