Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- GPS(also: 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 used by blind and low-vision travelers, enabling turn-by-turn navigation and…
- Gamification(also: 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 has been used to crowdsource tasks that are difficult to automate, such as…
- Generative Adversarial Network(also: 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 as images) while the discriminator tries to distinguish between real and…
- Geocoding(also: Geo-coding, Geographic Coding)
- The process of associating geographic coordinates (latitude and longitude) or location identifiers with objects, markers, or data points. In accessibility contexts, geocoding is used to tag physical locations with digital information that assistive technologies can use — for…
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