Glossary
Searchable terminology from accessibility, web standards, and related fields.
899 results found in Assistive Technology.
- Embossed Braille (Hard Copy Braille, Paper Braille)
- Braille text produced by physically raising dots on paper or other materials, creating a tactile surface that can be read by touch. Embossed Braille is produced using Braille embossers (printers), sla…
- Embossing (Braille Embossing, Tactile Embossing)
- The process of creating raised patterns on paper or other materials by pressing from behind, producing content that can be read by touch. In accessibility, embossing is the primary method for producin…
- End-User Programming (EUP, End-User Development, EUD)
- A design approach that enables people without formal programming training to create, modify, or combine software behaviors to suit their own needs. Typical end-user programming systems expose computat…
- Engagement Detection (Engagement Monitoring, Engagement Recognition)
- The use of sensors, computer vision, or other technologies to automatically assess whether a person is actively engaged with a task, device, or activity. Engagement detection systems typically monitor…
- Environmental Control (Environmental Control Unit, ECU, Smart Home Control)
- Technology that enables people with severe physical disabilities to independently control aspects of their environment such as lights, doors, temperature, televisions, phones, and other electronic dev…
- Environmental Control System (ECS, Electronic Aids to Daily Living, EADL, Environmental Control Unit)
- An environmental control system (ECS) is an assistive technology that enables people with physical disabilities to independently control devices and features in their environment, such as lights, door…
- Ergonomic Keyboard (Ergonomic Input Device)
- A keyboard designed to reduce physical stress, strain, and injury risk during typing by conforming to the natural posture and biomechanics of the hands, wrists, and arms. Ergonomic keyboard designs in…
- Event-Related Potential (ERP)
- An event-related potential (ERP) is a measured brain response that is the direct result of a specific sensory, cognitive, or motor event. ERPs are extracted from electroencephalography (EEG) recording…
- Explainable AI (XAI, Interpretable AI)
- A set of methods and design approaches that make the outputs and decision-making processes of artificial intelligence systems understandable to human users. Explainable AI aims to provide transparency…
- External Memory
- Information held outside the brain — in notes, calendars, photographs, voice recordings, alarms, labelled objects, or digital systems — that a person draws on to remember names, dates, tasks, procedur…
- External Metadata (Accessibility Metadata Overlay, Third-Party Metadata)
- External metadata in the context of web accessibility refers to supplementary information stored separately from a web page that can be applied to improve the page's accessibility without modifying th…
- Extractive Summarization (Extractive Text Summarization)
- Extractive summarization is a natural language processing technique that creates summaries by selecting and preserving key words, phrases, or sentences directly from the original text, rather than gen…
- Eye Cursor (Gaze Cursor)
- A visual indicator displayed on screen that shows where an eye tracking system has determined the user is currently looking. The eye cursor serves the same function as a mouse cursor but is controlled…
- Eye Gaze Technology (Eye Control Technology, Gaze Control)
- Technology that tracks and responds to eye movements, enabling users to control electronic devices using only their eyes. Eye gaze technology typically uses infrared cameras to track pupil position an…
- Eye tracking (Gaze tracking, Eye-gaze tracking, Eye Tracker)
- A technology that measures where a person is looking on a screen or in an environment by detecting eye position and movement, typically using infrared light and cameras. In accessibility, eye tracking…
- EyeDraw (Eye Draw)
- A software application developed at the University of Oregon that enables people with severe motor impairments, particularly children, to create freehand drawings using eye movements tracked by an eye…
- EyeMusic
- A visual-to-auditory sensory substitution device that converts images into sound, enabling people who are blind to perceive visual information including shape, location, and color. EyeMusic uses a lef…
- Eyes-Free Interaction (Eyes-Free, Eyes-Free Gaming, Eyes-Free Interface)
- Eyes-free interaction refers to the use of digital systems and interfaces without relying on visual output, using alternative modalities such as audio, haptic feedback, or speech. In gaming contexts, …
- Face Detection (Face Recognition, Facial Detection)
- A computer vision technology that identifies and locates human faces within digital images or video frames, typically providing bounding box coordinates around each detected face. Face detection serve…
- Face Recognition (Facial Recognition, Face Detection)
- A technology that uses computer vision and machine learning to identify or verify a person by analysing their facial features from images or video. In accessibility contexts, face recognition has sign…