Glossary
Searchable terminology from accessibility, web standards, and related fields.
899 results found in Assistive Technology.
- Coloured Overlay (Colored Overlay, Tinted Overlay, Reading Overlay)
- A transparent coloured sheet placed over text or a digital colour filter applied to a screen to reduce visual stress and improve reading comfort for some people with dyslexia, Meares-Irlen syndrome, o…
- Comic Strip Conversations (CSC)
- A visual-support technique developed by Carol Gray (1994) for autistic children and adolescents, in which a social interaction is illustrated as a short comic strip with simple stick figures, speech b…
- Command Recognition (Command Classification, Input Recognition)
- The process by which a computer system interprets and classifies a user's input action — such as a gesture, voice command, or key press — as a specific intended command from a predefined vocabulary of…
- Communication Access Realtime Translation (CART, Realtime Captioning, Stenographic Captioning)
- A captioning service where a trained professional uses a stenographic keyboard to transcribe spoken language into text in real time, producing near-verbatim captions. CART provides the highest accurac…
- Communication Partner Training (Conversation Partner Training)
- Structured training for the people who regularly communicate with an AAC user — including family members, caregivers, teachers, and peers — to help them support effective communication. Communication …
- Computer Braille (Computer Braille Code, CBC)
- Computer Braille is a specialized braille notation system that includes characters for symbols commonly used in computing, such as brackets, braces, semicolons, and other punctuation not found in stan…
- Computer Feedback System (CFS, Computerized Feedback System)
- A technology system that detects a user's behavior — such as vocalizations, movements, or physiological signals — and provides immediate audio, visual, or haptic responses mapped to that behavior. In …
- Computer Use Agent (CUA, computer-using agent, desktop agent)
- A computer use agent is an AI system powered by multimodal large language models that operates a computer by taking screenshots and performing mouse, keyboard, and scroll actions — mirroring the inter…
- Computer-Aided Instruction (CAI, Computer-Assisted Learning, Computer-Based Instruction)
- Computer-Aided Instruction (CAI) is the use of computer software to deliver educational content, practice exercises, and assessment in a structured learning environment. In accessibility contexts, CAI…
- Computer-Based Intervention (CBI, Technology-Based Intervention, Digital Intervention)
- A structured programme delivered through computer technology that aims to teach, rehabilitate, or support skill development. In accessibility contexts, computer-based interventions use software applic…
- Computer-Based Speech Training (CBST, Computer-Aided Speech Training, CAST, Speech Training Software)
- Computer-based speech training (CBST) refers to software systems designed to help individuals improve their speech production through automated exercises, feedback, and practice. These systems typical…
- Computer-Using Agent (CUA)
- An AI agent, typically built on a Large Multimodal Model, that perceives a computer's graphical user interface through screenshots, reasons about on-screen context, and directly manipulates the interf…
- Computerized Visual Communication (C-VIC)
- A computer-based assistive technology system that enables people with aphasia to communicate by arranging icons and images on screen to form sentences, which can then be translated into spoken or writ…
- Concatenated Speech Synthesis (Concatenative Synthesis, Unit Selection Synthesis)
- A method of producing synthetic speech by connecting pre-recorded segments of human speech, typically diphones (transitions between phonemes) or demi-syllables, to form complete words and sentences. C…
- Concatenative Synthesis (Unit Selection Synthesis)
- A text-to-speech method that generates synthetic speech by concatenating (joining together) pre-recorded segments of human speech. These segments, called units, may be phonemes, diphones, syllables, o…
- Concurrent Speech (Simultaneous Speech, Parallel Audio)
- The presentation of multiple audio streams simultaneously, leveraging the human ability to selectively attend to one stream while monitoring others — known as the cocktail party effect. In accessibili…
- Conductive Filament (Conductive 3D printing filament, Conductive PLA)
- A specialized 3D printing material that conducts electricity, enabling printed objects to interact with capacitive touchscreens. In accessibility applications, conductive filament can be embedded in o…
- Conductive Ink (Conductive Paint, Electrically Conductive Ink)
- An ink or paint formulated with electrically conductive materials such as silver, carbon, or graphene that can carry an electrical signal when applied to a surface. In accessibility applications, cond…
- Confidence Indicator (Confidence Score, Uncertainty Indicator)
- An interface element that communicates how certain an AI or automated system is about a given output, helping users decide how much to trust the result. In accessibility tools for blind and low-vision…
- Confusion Matrix (Error Matrix)
- A table used to characterize the accuracy of an input system by showing the probability that an intended signal will be correctly recognized versus misinterpreted as a different signal. In assistive t…