Glossary
Searchable terminology from accessibility, web standards, and related fields.
116 results found in technology.
- Crowdsourcing
- The practice of gathering information, data, or contributions from a large group of distributed participants, typically via the internet. In accessibility, crowdsourcing platforms like Wheelmap and Ac…
- DOM (Document Object Model)
- A programming interface that represents an HTML or XML document as a tree structure of objects, where each node corresponds to a part of the document such as elements, attributes, and text content. Th…
- De-identification (De-ID, Data De-identification)
- The process of removing or obscuring personally identifiable information from data, images, or video to protect an individual's privacy. In video contexts, de-identification may involve blurring, pixe…
- Dead Reckoning (Inertial Navigation, Pedestrian Dead Reckoning, PDR)
- Dead reckoning is a navigation technique that estimates a user's current position by tracking their movement from a known starting point, using data from inertial sensors such as accelerometers and gy…
- Deep Learning (DL)
- Deep learning is a subset of machine learning that uses artificial neural networks with multiple layers to learn complex patterns from large amounts of data. In accessibility contexts, deep learning p…
- Digital Fabrication (Digital Manufacturing, Rapid Prototyping)
- Digital fabrication encompasses manufacturing processes that use computer-controlled tools to create physical objects from digital designs. Common tools include laser cutters, 3D printers, and CNC rou…
- Digital Literacy (Digital Skills, Computer Literacy, ICT Literacy)
- The ability to find, evaluate, create, and communicate information using digital technologies. Digital literacy extends beyond basic technical skills to include understanding how to use technology saf…
- Digital Musical Instrument (DMI, Electronic Musical Instrument)
- A musical instrument that generates or controls sound through digital technology rather than purely acoustic means. Digital musical instruments separate the physical interface (how the player interact…
- Edge Computing (Edge AI, Edge Intelligence)
- Edge computing is a computing paradigm where data processing occurs on devices physically close to the user rather than in centralized cloud servers. For accessibility applications, edge computing off…
- Egocentric Camera (First-Person Camera, POV Camera)
- A camera that captures video from the wearer's point of view, typically mounted on the head, glasses, or chest. Egocentric video captures what the user sees or interacts with, making it valuable for a…
- Exif (Exchangeable Image File Format, EXIF)
- A standard metadata format embedded within image files (JPEG, TIFF, and others) that stores information about how an image was created, including camera model, date, GPS coordinates, and orientation. …
- Extended Reality (XR, Cross Reality)
- An umbrella term encompassing all immersive technologies that blend physical and virtual environments, including virtual reality (VR), augmented reality (AR), and mixed reality (MR). In accessibility,…
- Face Swap (Face Transformation, Face Replacement)
- A technology that replaces the face of a person in a video or image with a different face while attempting to preserve the original person's facial expressions, head movements, and lip synchronization…
- Fiducial Marker (AR Marker, Visual Marker, Reference Marker)
- An artificial visual landmark placed in a physical environment to serve as a reference point for image processing systems. Fiducial markers — such as QR codes, ArUco markers, and BCH matricial markers…
- Flexible Media (Object-Based Media)
- A method of producing audiovisual media in which different components of the content (such as audio tracks, video angles, and subtitle layers) are stored as separate elements and assembled at runtime …
- GPS (Global Positioning System, GNSS, Satellite Navigation)
- The Global Positioning System (GPS) is a satellite-based navigation system that provides location and time information to receivers on Earth. For accessibility, GPS is foundational to wayfinding apps …
- Gamification (Games with a Purpose, GWAP)
- The application of game design elements — such as points, levels, leaderboards, and time challenges — to non-game tasks in order to increase engagement and motivation. In accessibility, gamification h…
- Generative Adversarial Network (GAN, Adversarial Network)
- A type of deep learning architecture consisting of two neural networks — a generator and a discriminator — that are trained in competition with each other. The generator creates synthetic data (such a…
- Haptic Technology (Haptics, Touch Technology)
- Technology that creates tactile experiences through the application of forces, vibrations, or motions to the user, enabling interaction through the sense of touch. Haptic technologies range from simpl…
- Home Automation (Domotics, Smart Home Automation)
- The use of technology to automatically control household systems and appliances such as lighting, heating, ventilation, security, and entertainment. Home automation systems use sensors, timers, and pr…