An increasing number of web developers are aware of the Web Content Accessibility Guidelines (WCAG) (though they don’t necessarily use them in their work). But another set of accessibility guidelines seem to be almost completely overlooked – the Authoring Tool Accessibility Guidelines (ATAG).

Where WCAG addresses the information and functionality of a website, ATAG addresses software that is used to create websites or manage the content of websites. There are two versions of ATAG; ATAG 1.0, which was made a recommendation on 3 February 2000 (yes, over ten years ago), and ATAG 2.0, which is currently in Working Draft status. Since a lot has happened on the Web in ten years, ATAG 2.0 is what I am basing the information in this article on.

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