Glossary
Searchable terminology from accessibility, web standards, and related fields.
6660 terms — page 5 of 333
- AI-Generated Content (AIGC)
- An umbrella term for text, images, audio, video, and other media produced by generative AI systems — especially large language models and diffusion-based text-to-image or text-to-video models — in res…
- AI-Generated Speech (Synthetic Speech, AI Speech)
- Speech audio produced by artificial intelligence systems — typically neural text-to-speech or voice cloning models — rather than recorded from a human speaker. Deaf and hard-of-hearing content creator…
- AI-Mediated Communication (AI-Assisted Communication)
- Communication that is facilitated, enhanced, or generated with the assistance of artificial intelligence tools. This includes AI-powered text generation, speech-to-text transcription, real-time transl…
- AI-Mediated Dialogue
- A paradigm in which a large language model (or similar conversational agent) stands between a user and a task, simulated social situation, or another user — either producing the conversational partner…
- AJAX (Ajax, Asynchronous JavaScript and XML)
- AJAX is a set of web development techniques that allow web pages to communicate with a server and update portions of the page content without requiring a full page reload. AJAX poses major accessibili…
- ALTO (Analyzed Layout and Text Object, ALTO XML)
- An open XML format maintained by the US Library of Congress that stores the output of OCR (optical character recognition) together with the layout information of the scanned pages: character positions…
- AODA (Accessibility for Ontarians with Disabilities Act)
- Canadian provincial legislation enacted in 2005 that sets out a roadmap to make Ontario fully accessible by 2025. AODA establishes mandatory accessibility standards across five areas: customer service…
- APK (Android Package, Android Application Package)
- The file format used to distribute and install Android applications, containing compiled code, resources, assets, certificates, and a manifest describing the app's components and permissions. Accessib…
- AR Marker (Fiducial marker, Augmented reality marker)
- A printed visual pattern (often a square with a distinctive black-and-white code) placed in the environment that a smartphone or AR headset camera can recognise to determine its own position and orien…
- ARASAAC (Aragonese Portal of Augmentative and Alternative Communication)
- A publicly funded open pictogram library maintained by the Government of Aragon, Spain, providing nearly 12,000 colour and black-and-white pictograms licensed under Creative Commons (BY-NC-SA). ARASAA…
- ARIA (Accessible Rich Internet Applications, WAI-ARIA)
- A W3C specification that provides a framework of roles, states, and properties to make dynamic web content and custom user interface controls accessible to assistive technologies. ARIA supplements HTM…
- ARIA Hidden (aria-hidden Attribute)
- An WAI-ARIA attribute (aria-hidden="true") that removes an element and its descendants from the accessibility tree, making them invisible to screen readers and other assistive technologies while poten…
- ARIA Live Region (Live Region, ARIA Live)
- An ARIA live region is a section of a web page marked with the aria-live attribute that announces dynamic content changes to assistive technologies without requiring user focus to move to the updated …
- ARIA Live Region (Live Region, aria-live)
- A section of a web page marked with the aria-live attribute that is dynamically updated and should be announced by assistive technologies when changes occur, even if the user's focus is elsewhere. Liv…
- ARIA Live Regions (Live Regions, aria-live)
- ARIA live regions are areas of a web page that dynamically update with new content and use WAI-ARIA attributes to communicate those changes to assistive technologies. The aria-live attribute (with val…
- ARKit (Apple ARKit)
- ARKit is Apple's augmented reality development framework for iOS that enables developers to create AR experiences for iPhone and iPad. It uses the device's camera, motion sensors, and processor to det…
- ASCII (American Standard Code for Information Interchange)
- A character encoding standard that uses numeric codes to represent letters, digits, punctuation, and control characters in computers and communication equipment. ASCII assigns values 0-127 to 128 char…
- ASL (American Sign Language)
- Abbreviation for American Sign Language, the primary sign language used by Deaf communities in the United States and much of Canada. ASL is a complete, natural language with its own grammar, vocabular…
- ASL Dictionary (Sign Language Dictionary, ASL Lexicon)
- A reference resource for looking up American Sign Language signs and their meanings. Unlike dictionaries for written languages, ASL dictionaries face unique challenges because signs cannot be typed as…
- ASL Gloss (Sign Language Gloss, Glossing)
- A written notation system used to transcribe sign language by representing each sign with an English word written in capital letters. ASL gloss is used primarily for linguistic research, teaching, and…