Web Accessibility Guidelines
The World Wide Web Consortium (W3C) developed guidelines to safeguard the accessibility of a website: the Web Content Accessibility Guidelines: WCAG.
We are currently at version 2.
There are three levels:
- A, basic accessibility
- AA, the worldwide standard, also used for government and public service websites
- AAA, for dedicated software
WCAG is also the ISO standard 40500, and adopted in the European standard called EN 301 549.
The most well-known is the Web Content Accessibility Guidelines (WCAG)
WCAG is built around four core principles:
- Perceivable: so people can see content, and/or hear it.
- Operable: so people can use the computer by typing, or by voice.
- Understandable: so people get clear and simple language.
- Robust: so people can use different assistive technologies.
Other Guidelines
Authoring Tool Accessibility Guidelines (ATAG) which define requirements for content management systems, code editors and other software.
User Agent Accessibility Guidelines (UAAG) which defines requirements for web browsers and media players.
Accessible Rich Internet Applications (WAI-ARIA)
For help with Web Accessibility