Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- SGML(also: Standard Generalized Markup Language)
- An international standard (ISO 8879:1986) metalanguage for defining markup languages that describe the structure and content of electronic documents. SGML introduced foundational concepts including descriptive markup (tagging what content is, not how it should look), document…
- SMILES(also: Simplified Molecular-Input Line-Entry System)
- A text-based notation system that represents chemical molecular structures as short character strings, making them both machine-readable and human-readable. For accessibility, SMILES is significant because it provides a linear, non-visual way to represent chemical structural…
- Semantic Tagging(also: Structural Tagging, PDF Semantic Markup)
- The process of marking up content within a PDF document with tags that convey the semantic meaning and structural role of each element — such as headings, paragraphs, lists, tables, figures, and links — rather than just visual formatting. Proper semantic tagging ensures that…
- Single-Source Publishing(also: Single-Source Authoring, Multi-Channel Publishing)
- An authoring and publishing methodology where content is written and maintained in one master source and then automatically transformed into multiple output formats such as HTML, PDF, Braille, or mobile-optimized views. This approach is significant for accessibility because it…
- Slide Deck Accessibility(also: Presentation Accessibility)
- The practice of designing slide presentations to be usable by people with diverse disabilities, encompassing visual design choices (font size, colour contrast, background colour), structural elements (reading order, alt text for images, slide numbers), content considerations…
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