Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Hapget(also: Haptically-Enhanced Widget)
- A hapget (haptically-enhanced widget) is a user interface element that combines a 3D visual representation with haptic (touch) feedback, audio cues, and descriptive metadata to enable non-visual interaction. Introduced in the 3D HapticWebBrowser project, hapgets transform…
- Heads-Up Display(also: HUD)
- A transparent or overlay display that presents information in the user's direct line of sight without requiring them to look away from their current viewpoint. Originally developed for aviation, HUDs are widely used in virtual and augmented reality to attach interface elements —…
- Human Machine Interface(also: HMI, Human-Computer Interface)
- The point of interaction between a human user and a machine, encompassing all hardware and software through which users control and receive feedback from a system. In accessible design, HMIs must support multiple modalities—visual, auditory, and haptic—to accommodate users with…
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