Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Variable Pointing Performance(also: Variable Pointing Ability, Intermittent Pointing Difficulty)
- A condition where a person's ability to accurately use a pointing device (such as a mouse, trackpad, or touchscreen) fluctuates over time due to factors like physical impairments, fatigue, medication effects, aging, or environmental conditions. Unlike permanent severe motor…
- Virtual Keyboard(also: On-screen keyboard, Soft keyboard, OSK)
- A software-rendered keyboard displayed on screen that allows users to input text by clicking, tapping, or hovering over virtual keys using a mouse, trackball, touchscreen, eye tracker, or other pointing device. Virtual keyboards are essential assistive technology for people with…
- Vocal Programming(also: Voice Coding, Speech-Based Programming, Voice Programming)
- The practice of writing, editing, and navigating computer code using speech recognition rather than keyboard input. Vocal programming is an important accessibility concern because conventional software development tools implicitly require the use of a keyboard, creating a…
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