Glossary

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Enhanced Area Touch(also: Area Touch, Expanded Touch Area)

A touchscreen interaction technique that enlarges the effective touch point from a single pixel to a larger circular area, expanding both the motor space (the physical area the user needs to target) and the visual space (the on-screen representation of targets). When multiple…

Error correction strategy(also: Text correction, Input error recovery)

The methods and behaviours users employ to detect and fix errors during text input, including backspace deletion, cursor repositioning, autocorrect, and retyping. For blind and visually impaired users, error correction is disproportionately costly because detecting errors…

Explore by Touch(also: Touch Exploration)

A screen reader interaction mode on touchscreen devices in which users drag their finger across the screen to discover and hear descriptions of interface elements beneath their fingertip. When Explore by Touch is active, a single tap does not activate a control — instead, the…

Eyes-free Interaction(also: Eyes-free Input, Nonvisual Interaction, Eyes-free Interface)

Interaction techniques that allow users to operate devices without looking at the screen or interface. Eyes-free interaction is essential for people who are blind, but also benefits sighted users in contexts where visual attention is unavailable or dangerous, such as while…

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