Glossary
Searchable terminology from accessibility, web standards, and related fields.
899 results found in Assistive Technology.
- Constructive Exploration
- Constructive exploration is an interactive learning method in which a user is guided by a computer system to physically build a representation of spatial information using building blocks or other tan…
- Content Description (contentDescription, Android Content Description)
- A text attribute on Android UI elements that provides an accessible label for screen readers like TalkBack. Content descriptions serve the same purpose as alt text on web images — they convey the mean…
- Content Extraction (Web Content Extraction, Text Extraction)
- The process of separating meaningful content from the surrounding structural markup, navigation elements, and boilerplate text on a web page. For assistive technology users, content extraction is valu…
- Content Transcoding (Content Adaptation, Content Transformation)
- The process of automatically modifying web content to make it more accessible or usable for specific users or devices. Content transcoding can involve restructuring HTML, modifying CSS styles, replaci…
- Context-Appropriate Technology (Appropriate Technology, Context-Appropriate AT)
- Technology, particularly assistive technology, that is designed or selected to fit the specific social, economic, cultural, and environmental context in which it will be used. Context-appropriate tech…
- Contextual Reinforcement (Header Reinforcement)
- A technique in aural and non-visual rendering of tabular data where column headers, row labels, or other structural context is repeated alongside data values to help users understand the relationships…
- Continuous Voice Control (Continuous Vocal Control, Proportional Voice Control)
- A voice interaction paradigm in which vocal parameters such as pitch, loudness, vowel quality, and timbre are used to provide smooth, proportional, real-time control of a system, as opposed to discret…
- Conversational Assistant (Voice Assistant, Virtual Assistant, Intelligent Personal Assistant)
- A software application that uses natural language processing and speech recognition to interact with users through spoken or typed conversation, providing information, performing tasks, and controllin…
- Conversational Interface (Conversational UI, Conversational User Interface, Chat Interface)
- An interface that enables interaction through natural language dialogue, either spoken or text-based, rather than through traditional graphical controls like buttons and menus. Conversational interfac…
- Cooperative Evaluation (Cooperative Usability Evaluation, Modified Think-Aloud)
- A usability evaluation method in which the researcher and participant work together as collaborators rather than following a strict observer-subject protocol. Unlike standard controlled experiments, c…
- Copilot (Shared Control) (Gaming Copilot, Assistive Copilot)
- In shared-control video gaming, the copilot is the secondary actor who supports the pilot (the primary player, typically a person with a disability) by taking over game actions the pilot cannot perfor…
- Coping Strategies (Coping Tactics, Workaround Strategies)
- The techniques and approaches that users with disabilities develop to navigate around accessibility barriers they encounter on the web and in digital interfaces. Expert screen reader users, for exampl…
- Core Haptics
- Apple's iOS framework for designing and playing custom vibrotactile patterns on iPhone using the Taptic Engine. Core Haptics lets developers synthesize transient 'taps' and continuous vibrations, vary…
- Corneal Reflection (Pupil-Center Corneal Reflection, PCCR)
- An eye tracking technique that works by shining a near-infrared light at the eye and measuring the relationship between the reflection off the cornea (the bright spot called the glint) and the center …
- Cross-Modal Transfer (Cross-Modal Perception, Sensory Substitution)
- Cross-modal transfer refers to the ability to recognize or process information received through one sensory modality (such as touch or hearing) based on experience gained through a different modality …
- Cross-Representation Highlighting (Synchronized Highlighting, Linked Highlighting)
- A user interface technique that synchronizes selections across multiple representations of the same data, so that selecting an element in one view automatically highlights the corresponding element in…
- Crossing-Based Interaction (Goal Crossing)
- An alternative to traditional point-and-click interaction where users select a target by dragging across its boundary rather than tapping or clicking on it. Instead of requiring a precise tap within a…
- Crowd Accessibility (Crowdsourcing for Accessibility, Human-Powered Access Technology)
- An approach that combines human intelligence with machine intelligence to create accessible content and services for people with disabilities. In crowd accessibility, micro-tasks that automated system…
- Cueing (External Cueing, Sensory Cueing)
- In rehabilitation, cueing is the delivery of external sensory stimuli - visual, auditory, or somatosensory - that guide or trigger a motor action. Cueing is used most prominently in Parkinson's diseas…
- Cultural Heritage Accessibility (Heritage Accessibility, Accessible Cultural Heritage)
- The practice of making cultural heritage sites, monuments, museums, and artifacts accessible to people with disabilities through physical modifications, assistive technologies, and alternative formats…