Glossary
Searchable terminology from accessibility, web standards, and related fields.
113 results found in human-computer interaction.
- User model (User modeling, User modelling)
- A computational representation of a user's characteristics, abilities, preferences, and behavior patterns, used to predict how they will interact with a system or to adapt an interface to their needs.…
- Value Sensitive Design (VSD)
- A design methodology that accounts for human values in a principled and systematic way throughout the technology design process. Value Sensitive Design integrates three types of investigation: concept…
- Virtual reality (VR, Immersive virtual environment)
- A computer-generated simulation of a three-dimensional environment that users can interact with using specialized hardware such as head-mounted displays and motion controllers. Virtual reality present…
- Vision-based Page Segmentation (VIPS)
- A web page segmentation algorithm that uses both the source code and the visual presentation of a web page to divide it into hierarchical visual blocks. VIPS produces a tree structure where the root n…
- Visual Attention Split (Split Attention, Divided Visual Attention)
- The cognitive challenge of needing to divide visual focus between two or more sources of information simultaneously. For deaf and hard of hearing people, visual attention split is a pervasive accessib…
- Visual search
- The perceptual task of scanning a visual scene to locate a specific target among distractors. Visual search is significantly affected by low vision, visual field loss, and other visual impairments, as…
- Voice Interaction (Voice User Interface, VUI, Voice-Based Interaction)
- An interaction paradigm where users communicate with technology primarily through spoken commands and receive audio responses, rather than using visual displays, keyboards, or touch screens. Voice int…
- Voice-First Design (Voice-First Interface, Audio-First Design)
- A design approach for applications and interfaces where voice is the primary input and output modality, with visual elements being secondary or absent. Voice-first design is particularly relevant for …
- Web Page Segmentation (Page Segmentation, Visual Page Segmentation)
- The process of dividing a web page into its constituent visual blocks or semantic regions, such as headers, navigation menus, content areas, sidebars, and footers. Segmentation algorithms analyse both…
- Webcam-Based Interaction (Camera-Based Interaction, Video-Based Input)
- An interaction paradigm where users communicate with a computer system through a webcam or camera, using gestures, sign language, facial expressions, or body movements as input. In accessibility conte…
- Wizard of Oz Study (WOZ Study, Wizard of Oz Method)
- A research method in which participants interact with what they believe is an automated system, but which is actually operated in whole or in part by a human "wizard" hidden from view. The method is u…
- Wizard-of-Oz study (WoZ study, Wizard of Oz method)
- A research methodology in which participants interact with a system they believe is automated, but which is actually operated partially or fully by a hidden human operator (the "wizard"). This approac…
- Workspace Awareness (Collaborator Awareness, Shared Workspace Awareness)
- The up-to-the-moment understanding of another person's interactions within a shared workspace, including their location, actions, and intentions. In collaborative software development, workspace aware…