Glossary
Searchable terminology from accessibility, web standards, and related fields.
6660 terms — page 117 of 333
- Extractive Research (Extractive UX Research)
- A critique of research practices — common in industry UX and academic HCI — in which researchers take data, insights, or stories from a community, often marginalized, without ongoing relationship, rec…
- 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…
- Extraneous Cognitive Load (Extraneous Load)
- One of three types of cognitive load identified by cognitive load theory, referring to the unnecessary mental effort caused by poor instructional design or interface presentation rather than the learn…
- Extreme Users (Lead Users, Edge Cases)
- A design methodology that focuses on a small set of users with unusual, demanding, or outlying needs rather than statistically representative users. Developed by Pullin and Newell (2007), the approach…
- Extrinsic Motivation
- Extrinsic motivation refers to engaging in an activity to achieve external rewards, avoid punishment, or meet external expectations rather than for inherent enjoyment. In accessibility and technology …
- 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 (Gaze, Gaze Direction, Visual Gaze)
- The direction and focus of a person's eyes during visual attention, used both as a communication signal and as a measurable indicator of cognitive processing. In sign language communication, eye gaze …
- Eye Gaze Communication (Gaze-Based Communication, Eye Tracking Communication)
- The use of eye movements and gaze direction as a means of communication, either naturally (making eye contact, looking at objects to indicate interest) or through technology (eye-tracking systems that…
- 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)
- Technology that detects and follows the movement of a user's eyes, enabling gaze-based interaction, attention monitoring, and foveated rendering. In accessibility contexts, eye tracking serves as an a…
- Eye Tracking (Eye-Tracking, Gaze Tracking)
- A research methodology that uses specialized hardware (such as infrared cameras) to measure where a person is looking on a screen or in an environment, recording the sequence and duration of gaze fixa…
- Eye Tracking (Gaze Tracking, Eye-Tracking)
- A research methodology and assistive technology that measures where a person looks (fixation points), how their gaze moves across a display (saccades), and how long they focus on specific areas (dwell…
- 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…
- Eye-Gaze Control (Gaze Control, Eye-Controlled Interface, Gaze-Based Input)
- An input method that uses eye-tracking technology to detect where a user is looking and translates gaze direction into control commands for computers, wheelchairs, communication devices, and other sys…
- Eye-Gaze in Sign Language (Eye Gaze, Gaze Direction)
- The use of eye direction and movement as a grammatical and communicative feature in sign languages. In American Sign Language and other sign languages, eye-gaze serves multiple linguistic functions in…
- Eye-Hand Coordination (Hand-Eye Coordination, Visuomotor Coordination, Oculomotor Coordination)
- The ability to coordinate visual input with hand movements to perform tasks requiring precision, such as reaching for objects, writing, typing, or using tools. Eye-hand coordination involves the integ…
- 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…
- Eyelid Gesture (Eyelid Interaction, Eyelid-Based Input)
- An eyelid gesture is a deliberate eye movement used as an input method for controlling digital devices, involving intentional opening and closing of one or both eyelids in specific patterns, sequences…
- Eyes-Free Interaction (Eyes-Free Computing)
- Interaction with digital devices and interfaces without requiring visual attention to a screen. Eyes-free interaction is essential for blind users but also benefits sighted users in contexts where loo…