Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Accessibility Annotation(also: A-Annotation, Accessibility Metadata)
- External metadata added to a web page to describe its visual layout structure, content groupings, and element roles for the purpose of improving accessibility without modifying the original page. Accessibility annotations typically identify visually distinct groups on a page,…
- Accessibility Commons(also: AC Repository, AC Metadata Repository)
- A shared metadata repository and schema proposed in 2008 by IBM, the University of Washington, Stony Brook University, and the University of Manchester to let accessibility-remediation research projects publish and reuse externally authored fixes for inaccessible web content. An…
- Accessibility Metadata(also: A11y Metadata, Accessibility Annotations)
- Structured information that describes the accessibility features, hazards, or access modes of digital content. Accessibility metadata can be embedded within content (such as alt text in HTML) or stored externally in separate databases or annotation systems. External…
- Application Profile(also: Metadata Application Profile)
- A customization of an existing metadata standard that selects, constrains, or extends elements to meet the requirements of a particular community or application. In accessibility, application profiles are used to add accessibility-specific properties to general-purpose metadata…
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