Glossary

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Non-Visual Interaction(also: Non-Visual Access, Non-Visual Interface)

Methods of interacting with computer systems and digital content without relying on visual display. Non-visual interaction encompasses screen reader output, speech interfaces, keyboard navigation with audio feedback, braille displays, and haptic feedback. The Raman Principle…

Non-Visual Mental Model(also: Non-Visual Representation, Tactile Mental Model)

A cognitive representation of concepts, objects, or systems built through non-visual sensory channels — primarily touch, hearing, and proprioception — rather than through sight. People who are blind develop non-visual mental models that may differ structurally from visual models…

Non-Visual Navigation(also: Eyes-Free Navigation, Non-Visual Wayfinding)

Strategies and technologies that enable people who are blind or have low vision to navigate physical environments without relying on visual information. Non-visual navigation uses a combination of tactile cues (textured ground surfaces, cane feedback), auditory cues (traffic…

Non-Visual Reading(also: Audio Reading, Tactile Reading)

Methods of accessing written content without relying on visual perception, including braille reading, screen reader audio output, and text-to-speech technology. Non-visual reading is essential for blind users but presents unique challenges for navigation, skimming, and…

Non-visual Display(also: Nonvisual Display, Non-visual Interface)

A non-visual display presents information to a user through senses other than vision — most commonly hearing (synthesized speech, earcons, sonification), touch (Braille output, vibrotactile patterns, force-feedback haptics), or combinations thereof. Non-visual displays are…

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