Glossary
Searchable terminology from accessibility, web standards, and related fields.
9 results found in Interaction.
- Delegation (Human-Robot Interaction) (Delegation, Task delegation to robot)
- In human-robot interaction, the explicit transfer of a task or decision from a human to a robot. Delegation is a form of shared control in which authority for a specific subtask — for example, asking …
- Gestural Interaction (Gesture-Based Interaction)
- A mode of human-computer interaction in which users control systems through movements of the body — hands, arms, head, eyes, or whole body — captured by sensors such as accelerometers, cameras, IMUs, …
- Guiard's Theory of Asymmetric Bimanual Action (Guiard kinematic chain model, Asymmetric bimanual action model)
- Yves Guiard's 1987 model describing how the two hands typically take complementary, asymmetric roles in everyday manual tasks. The non-dominant hand sets a coarse spatial frame of reference that the d…
- Haptic Magnetism (Force Attraction, Haptic Gravity)
- A technique used in haptic interfaces where virtual attractive forces pull a haptic device (such as a stylus) toward nearby virtual objects, simulating a magnetic or gravitational effect. In accessibl…
- Indirect Text Entry (Indirect Selection, Indirect Text Composition)
- A text input method where the number of available input controls (such as switches or keys) is significantly smaller than the number of characters that can be entered. The user selects characters thro…
- Object Localisation (Object Localization, Spatial Localisation)
- The process of determining the position and location of an object within a physical or virtual space. In accessibility, object localisation is a key challenge for blind and visually impaired users int…
- Passive Haptic Feedback (Passive tactile feedback)
- Tactile information provided to a user by the inherent physical properties of a device or interface, without any active actuation. Examples include the raised bezel around a touch screen, the tactile …
- Scanning (Switch Scanning, Automatic Scanning)
- An indirect selection method used in augmentative and alternative communication (AAC) and assistive technology where items (letters, words, or commands) are highlighted sequentially by the system, and…
- Visual Context Switching (Visual Attention Switching, Gaze Switching)
- The act of shifting visual focus between multiple sources of information, such as between a sign language interpreter and a presentation screen, or between captions and a speaker's face. For deaf and …