Glossary

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Haptic Consent(also: Vibrotactile Consent)

A consent model in which the request for, agreement to, and revocation of consent are communicated through touch or vibration rather than speech. Haptic consent is motivated by accessibility: many neurodivergent people, Deaf and hard-of-hearing people, and people in high-emotion…

Haptic Feedback(also: Tactile Feedback, Touch Feedback)

Information conveyed through the sense of touch, typically using vibrations, force, or texture changes to communicate data or system states to a user. In accessibility, haptic feedback provides non-visual, non-auditory confirmation of actions and can convey spatial information,…

Haptic Feedback(also: Tactile Feedback, Haptics)

Technology that communicates information through the sense of touch, using vibrations, pressure, or motion applied to the user's body. In accessibility, haptic feedback provides a non-visual, non-auditory channel for conveying alerts, navigation cues, or interface responses —…

Haptic Icon(also: Hapticon)

A short, structured vibrotactile or force pattern designed to carry meaning in the same way a graphical icon or audio earcon does, allowing users to recognize a category of information — an alert, material, identity, or state — through touch alone. The concept generalizes…

Human-Machine Interface(also: HMI, Human-Computer Interface)

The point of interaction between a human user and a machine, system, or device, encompassing the hardware and software through which users communicate with and control technology. In the context of accessible design, HMIs include physical controls (buttons, levers, keypads),…

Human-Vehicle Interaction(also: HVI, Vehicle-pedestrian interaction)

The field studying how people communicate, negotiate, and coordinate with vehicles and their occupants — including drivers, passengers, and, increasingly, automated systems. Human-vehicle interaction encompasses internal interfaces (dashboards, voice assistants,…

Human-computer interaction(also: HCI, Human-machine interaction)

The interdisciplinary study of the design, evaluation, and use of interactive computing systems by humans, drawing on computer science, psychology, design, and social science. HCI research encompasses how people use technology, how interfaces should be designed for usability and…

Hybrid Interaction(also: Multimodal Hybrid Approach)

An interaction design approach that combines multiple input and output modalities, allowing users to switch between them based on task requirements, context, and personal preferences. In accessibility research, the "voice for speed, screen for verification" principle exemplifies…

Hybrid automaton(also: Hybrid state machine)

A computational model that combines discrete state transitions with continuous dynamics, used in interactive systems to govern object behaviours based on multiple users's simultaneous inputs. In collaborative virtual environments for autism intervention, hybrid automata control…

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