Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- NavTap
- A navigational text-entry method designed for blind mobile phone users that reduces the cognitive load associated with inputting text without visual feedback. NavTap organizes the alphabet into five rows beginning with vowels and allows users to navigate between letters using…
- Near-Miss Detection(also: Near-Miss Interaction)
- A strategy for identifying when a user almost but not quite succeeds at a device interaction, suggesting they might benefit from an accessibility accommodation. For example, if a user repeatedly attempts a double-click but falls just outside the required timing threshold, the…
- Nomadic Text Entry(also: Mobile Text Entry, On-the-Go Texting)
- The practice of inputting text on a mobile device while moving through or actively engaging with the physical environment, as opposed to typing while stationary. For people who are blind or visually impaired, nomadic text entry presents unique challenges because it requires…
- Nonvisual Interaction(also: Eyes-Free Interaction, Screenless Interaction)
- Interaction with computing devices without relying on visual feedback, using alternative channels such as audio, tactile, or proprioceptive cues. Nonvisual interaction is essential for blind and low-vision users but also benefits sighted users in eyes-busy contexts like driving…
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