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Glossary

Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.

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Description Logic(also: DL, Description Logics)
A family of formal knowledge representation languages used as the mathematical foundation for ontology languages like OWL. Description logics describe a domain in terms of individuals (specific entities), concepts or classes (sets of individuals with shared characteristics), and…
Document Semantics(also: Page Semantics, Web Document Semantics)
Document semantics refers to the layers of meaning embedded in a web page that go beyond the raw HTML markup — including layout semantics (spatial relationships between visual elements), content semantics (the nature and structure of textual content), interaction semantics (the…

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