Glossary
Searchable terminology from accessibility, web standards, and related fields.
154 results found in interaction design.
- Error correction strategy (Text correction, Input error recovery)
- The methods and behaviours users employ to detect and fix errors during text input, including backspace deletion, cursor repositioning, autocorrect, and retyping. For blind and visually impaired users…
- Explore by Touch (Touch Exploration)
- A screen reader interaction mode on touchscreen devices in which users drag their finger across the screen to discover and hear descriptions of interface elements beneath their fingertip. When Explore…
- 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…
- Eyes-free interaction (Eyes-free interface, Non-visual interaction)
- An interaction paradigm in which users operate technology without relying on visual feedback, instead receiving information through auditory, haptic, or other non-visual channels. Eyes-free interfaces…
- Feedforward (Anticipatory Feedback)
- Design information that tells users what to expect before they take an action, guiding them toward intended functionality by communicating expected results. Unlike feedback (which confirms what happen…
- Finger Reading (Touch Scanning, Tactile Scanning)
- A touch interaction technique used on accessible touchscreen interfaces where users continuously pan or slide their finger across the screen to explore content, receiving feedback for every position t…
- Fitts' Law (Fitts Law)
- A predictive model of human movement in human-computer interaction that states the time required to move to a target area is a function of the distance to the target and the size of the target. Specif…
- Fluid Traversal (Fluid Navigation)
- A navigation design principle for screen reader interfaces that aims to mirror the flexibility of sighted visual attention. Fluid traversal has two key properties: it should be concise (requiring mini…
- Foot-Based Interaction (Foot Input, Foot Gesture Interaction)
- An interaction technique that uses foot movements and gestures as input for controlling digital devices. Foot-based interaction is particularly relevant for people with upper body motor impairments wh…
- Free-Roam Locomotion (Room-Scale VR, Physical Locomotion)
- A VR locomotion method where the user's real-world physical movement is directly mapped to movement in the virtual environment—walking forward in the real room moves the user forward in VR. While free…
- Frequency mapping (Pitch mapping, Frequency-position mapping)
- A sonification technique that encodes spatial position or data values as changes in audio frequency (pitch), creating an intuitive correspondence between vertical position and pitch height — low posit…
- Gestural Interface (Gesture-Based Interface, Gestural Controller)
- An input device or system that interprets body movements, hand gestures, or physical expressions as control signals for digital systems. In accessibility and music contexts, gestural interfaces are pa…
- Gesture Elicitation (User-Defined Gestures)
- Gesture elicitation is a participatory design method where end users are asked to invent gestures for a set of device functions, rather than having gestures predetermined by designers or engineers. Pa…
- Gesture Elicitation Study (Gesture Elicitation, User-Defined Gestures)
- A research methodology in which participants are presented with the effects or outcomes of actions (called referents) and asked to propose gestures they would naturally perform to trigger those effect…
- Gesture Input (Gesture Recognition, Gesture-Based Interaction)
- An input method that uses physical movements of the body — typically hands, fingers, arms, or head — to interact with digital systems. Gesture input includes touchscreen gestures (swipes, taps, pinche…
- Gesture Input (Gestural Input, Gesture-Based Input)
- A form of human-computer interaction where users perform physical movements—such as swipes, taps, pinches, or mid-air hand motions—to issue commands or provide input to a digital device. Gesture input…
- Gesture Set Design (Gesture Vocabulary Design)
- The process of selecting and defining a collection of gestures that users will perform to interact with a system, including decisions about which physical movements map to which functions. Effective g…
- Gesture vocabulary (Gesture set, Interaction gesture repertoire)
- The complete set of touch gestures recognized and used by a device or application, including single-stroke gestures (swipes, flicks), multistroke gestures (multi-tap, draw-then-tap), and multitouch ge…
- Gesture-Based Interface (Gestural Interface, Gesture Recognition Interface)
- An interaction system that interprets human gestures—such as hand movements, body poses, or finger motions—as input commands. Gesture-based interfaces can use cameras, accelerometers, touch surfaces, …
- Gesture-based interaction (Gestural interface, Touchless interaction)
- An interaction modality where users control technology through body movements, hand gestures, or postures detected by sensors such as depth cameras, rather than through traditional input devices like …