Some use cases
- Web Content: http://www.w3.org/TR/WCAG10
- For content.
- Authoring Tools: http://www.w3.org/TR/ATAG10
- For all tools producing content.
- User Agent: http://www.w3.org/TR/UAAG10
- For browsers and plugins.
- XML Guidelines: http://www.w3.org/TR/xag
- For new languages or formats
