Glossary

Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.

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Technical Agency: Technical agency, in the context of augmentative and alternative communication (AAC), refers to an individual's ability to actively participate in and contribute to a conversation through direct actions such as speaking, gesturing, or vocalizing. It is distinguished from…
Text Gloss(also: Text Glosses): In Augmentative and Alternative Communication (AAC), a text label or annotation associated with a visual symbol (such as an icon or pictogram) on a communication device. The text gloss serves two purposes: it provides a written description to help communication partners…
Trigram(also: 3-gram): A sequence of three consecutive words used in statistical language modeling for word prediction. Trigram models predict the next word based on the two preceding words, capturing more context than simpler unigram (single word) or bigram (two word) models. In AAC word prediction,…
Turn Taking(also: Conversational Turn-Taking, Turn-Taking): The pragmatic skill of alternating speaking and listening roles during conversation, including knowing when to speak, how long to speak, and how to signal readiness to yield or take a turn. Turn taking is a fundamental component of social communication that children typically…

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