Glossary
Searchable terminology from accessibility, web standards, and related fields.
154 results found in interaction design.
- Touch Exploration (Explore by Touch, Touch-Based Exploration)
- An interaction method that allows users to discover on-screen content by moving their finger across a touchscreen, receiving audio feedback about elements under the fingertip. Touch exploration is fun…
- Touch Target Size (Tap Target Size, Target Size)
- The physical area of an interactive element on a touchscreen that responds to user input. Adequate touch target sizing is critical for accessibility, particularly for users with motor impairments who …
- Touch target (Tap target, Touch target size, Target size)
- The interactive area on a touchscreen or pen-based display that responds to user input when tapped or pressed. Touch target size is a critical accessibility consideration because targets that are too …
- Touch-to-Explore (Touch Exploration, Explore by Touch)
- An interaction mode used by touchscreen screen readers (such as VoiceOver on iOS and TalkBack on Android) where users drag their finger across the screen to discover and hear descriptions of interface…
- 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 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…
- Unistroke Gesture (Single-Stroke Gesture, Unistroke)
- A unistroke gesture is a shape or symbol drawn in a single continuous stroke on a touch screen or digitizer, which is then recognized by software as a specific command or input. In accessible interfac…
- Verification Mechanism (Verification System)
- A feature or process that allows users to confirm that a system has correctly understood and executed their intended action. In accessible calendar design, verification mechanisms are critical because…
- Voice Control (Voice Command, Voice-Activated Control)
- The ability to operate devices, applications, or systems using spoken commands. Voice control is a key accessibility feature in smart home technology, enabling people with mobility impairments, visual…
- Voice Interface (Voice User Interface, VUI)
- A user interface that accepts spoken language as input and typically provides audio output, enabling hands-free, eyes-free interaction with technology. Voice interfaces are used in voice-activated per…
- Voice User Interface (VUI)
- A user interface that enables interaction with a device or system through spoken voice commands and audio responses. Voice user interfaces use speech recognition to interpret user input and text-to-sp…
- Wake Word (Hotword, Trigger Word, Activation Word)
- A specific word or phrase that activates a voice-controlled device, such as "Hey Google," "Alexa," or "Hey Siri." The wake word must be spoken before any command for the device to begin listening. Wak…
- Zero-Touch Interaction (Touchless Interaction, Hands-Free Interaction)
- An interaction paradigm that allows users to control devices or systems without physically touching them, typically through voice commands, gestures detected by cameras or sensors, or ambient sensing.…