Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Gaze Typing(also: Eye Typing, Gaze-Based Text Entry, Eye-Typing)
- A text input method that uses eye tracking technology to allow users to type by looking at keys on a virtual on-screen keyboard. The most common technique is dwell-based selection, where the user fixates on a letter for a set duration (typically 300-1000 milliseconds) to select…
- Gaze-Based Communication(also: Eye Gaze Communication, Gaze-Based AAC)
- A form of augmentative and alternative communication that uses eye movement tracking to enable people with severe motor and speech impairments to select words, phrases, symbols, or commands on a screen. Users make selections by fixating their gaze on a target for a set dwell…
- German Sign Language(also: DGS, Deutsche Gebärdensprache)
- The sign language used by the deaf community in Germany, recognised as an independent natural language with its own grammar, syntax, and vocabulary distinct from spoken German. Like other sign languages worldwide, German Sign Language is a visual-spatial language that uses…
- Gloss(also: Sign Gloss, Gloss Notation)
- A form of transliteration used in sign language research where written words from a spoken language (typically the dominant spoken language of the region, such as English) are used as labels to represent individual signs. Glosses are written in capital letters by convention…
- Gricean maxims(also: Conversational maxims, Cooperative principle)
- A set of principles proposed by philosopher Paul Grice that describe the implicit rules governing cooperative conversation: quantity (be informative but not over-informative), quality (be truthful), relation (be relevant), and manner (be clear and orderly). Gricean maxims are…
- Grid Display(also: Symbol Grid, Grid-Based AAC)
- A common AAC layout format that presents communication options as symbols, icons, or words arranged in a grid pattern of rows and columns. Grid displays are widely used in speech-generating devices and AAC apps, allowing users to construct messages by selecting individual…
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