Glossary

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Calibration-Free Interface(also: Zero-Shot Interface, Plug-and-Play Interface, Cross-User Model)

An input system that works for a new user without any per-user training or calibration data, typically by relying on models trained on large multi-user datasets that capture enough physiological and behavioural variation to generalise. Voice assistants and mixed-reality hand…

Camera Mouse(also: Head-Controlled Mouse Pointer, Head Tracking Mouse)

A computer-vision-based mouse-replacement system that tracks a user's head motion through a standard webcam to control the mouse pointer on screen. Developed at Boston University by Margrit Betke and James Gips, Camera Mouse is freely available and enables people with severe…

Chairable Technology(also: Chairable Input, Chairable Devices)

Input devices and interactive technologies designed to integrate with the form of a wheelchair, analogous to how wearable technology fits with an individual's clothing. Chairable technology recognises that power wheelchair users spend most of their waking hours in their chairs…

Chording Keyboard(also: Chord Keyboard, Chorded Keyboard, Chording Input)

A text input device that generates characters by pressing multiple keys or moving multiple inputs simultaneously rather than pressing individual keys sequentially as on a standard keyboard. Similar to how piano chords combine multiple notes, each character is produced by a…

Continuous Input(also: Continuous Control, Analog Input)

Continuous input is any interaction technique in which the user varies a parameter smoothly along a range rather than selecting from a set of discrete options — adjusting a slider, dragging a brush, turning a dial, holding a gesture, or modulating vocal loudness. Continuous…

Continuous Specification(also: Continuous Positioning, Continuous Cursor Movement)

In cursor control interfaces, a positioning method where the cursor moves steadily in a given direction at a controlled rate until the user signals it to stop. This approach allows precise positioning because the user can halt movement at exactly the desired location, but it is…

Continuous Voice Control(also: Continuous Vocal Control, Proportional Voice Control)

A voice interaction paradigm in which vocal parameters such as pitch, loudness, vowel quality, and timbre are used to provide smooth, proportional, real-time control of a system, as opposed to discrete voice commands that trigger specific actions. Continuous voice control is…

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