Glossary
Searchable terminology from accessibility, web standards, and related fields.
6660 terms — page 300 of 333
- Touchpad (Touch Tablet, Touch-Sensitive Pad)
- A flat, pressure-sensitive input device that detects the position of a finger or stylus on its surface. In assistive technology contexts, touchpads are used as interactive overlays for tactile graphic…
- Touchpad Navigation (Trackpad Navigation)
- A method of interacting with digital content by dragging fingers or pressing specific positions on a smooth-surface touchpad input device. In accessibility contexts, touchpad navigation enables direct…
- Touchscreen (Touch Screen, Touch Display)
- An input and display device that detects touch gestures directly on its surface, allowing users to interact with content by tapping, swiping, pinching, or dragging. While touchscreens enable intuitive…
- Touchscreen Accessibility (Touch Interface Accessibility)
- Touchscreen accessibility refers to the design principles, techniques, and assistive technologies that make touchscreen devices usable by people with disabilities. This includes screen reader gestures…
- Touchscreen Exploration (Touch Exploration, Direct Touch Exploration)
- An accessibility interaction mode where blind and low vision users explore digital content by moving their finger across a touchscreen, receiving audio or haptic feedback about elements beneath their …
- Touchscreen text entry (Mobile typing, Virtual keyboard input)
- The process of entering text on a touchscreen device using a virtual keyboard, which presents significant accessibility challenges for blind and visually impaired users who cannot see key boundaries o…
- Tower of Hanoi (Tower of Hanoi Task, Tower Task)
- The Tower of Hanoi is a classic cognitive assessment puzzle used in neuropsychology and educational research to measure multi-step planning and executive function abilities. The task requires moving a…
- Toxic positivity (Forced positivity, Positive bypassing)
- Toxic positivity refers to the excessive promotion of optimistic or uplifting framing that dismisses, minimises, or erases negative emotions, suffering, and genuine hardship. In disability contexts, t…
- Toxicity detection (Content toxicity scoring, Toxic speech detection)
- An NLP-based content moderation technique that assigns scores to text indicating the likelihood it is rude, disrespectful, or likely to make someone leave a conversation. Research has shown that toxic…
- Trace Center (Trace Research and Development Center)
- A leading accessibility research center originally founded at the University of Wisconsin-Madison in 1971, now at the University of Maryland. The Trace Center pioneered foundational work in accessible…
- Trace R&D Center (Trace Center, Trace Research and Development Center)
- A pioneering research center focused on accessibility and assistive technology, originally established at the University of Wisconsin-Madison in 1971 and later affiliated with the University of Maryla…
- Tracheoesophageal puncture (TEP, tracheoesophageal voice prosthesis, TE puncture)
- A surgical procedure that creates a small opening (fistula) between the trachea and esophagus to restore voice production after total laryngectomy. A one-way valve is inserted that allows exhaled air …
- Tracheostomy (Tracheotomy)
- A surgical procedure that creates an opening (stoma) in the front of the neck into the trachea (windpipe), through which a tube is inserted to provide an airway for breathing. Like intubation, a trach…
- Trackball
- A trackball is a pointing device consisting of a ball housed in a stationary socket that the user rotates to move the on-screen cursor, with buttons nearby for clicking. Unlike a mouse, a trackball do…
- Tracked Captions (Speaker-following captions, Dynamic captions)
- Captions that move dynamically within the video frame to stay near the current speaker's face or mouth, rather than remaining anchored at a fixed position (typically the bottom of the video). Tracked …
- Training Data (Training Set, Training Dataset)
- The collection of labeled examples used to teach a machine learning model to perform a specific task. The quality, quantity, and diversity of training data directly determine how well a model will per…
- Training Wheels Interface (Training Wheels, Progressive Disclosure)
- An interface design pattern that reduces complexity for novice users by hiding or disabling advanced features until they are needed, then gradually revealing them as the user gains competence. Named a…
- Trajectory Analysis (Route Analysis, Path Analysis)
- The computational study of movement patterns over time and space, typically derived from GPS or other location data. Trajectory analysis involves modelling, comparing, and classifying sequences of spa…
- Trajectory Playback (Haptic Playback, Force-Guided Movement)
- A technique in haptic interfaces where a force-feedback device physically guides a user's hand through a predefined path or shape. The system applies forces to move the user along a trajectory, allowi…
- Transactional Communication Model
- The most dynamic model of communication, in which all parties are simultaneously senders and receivers, co-creating meaning through instantaneous, continuous feedback. In this model, communication is …