XML Accessibility Guidelines
http://www.w3.org/TR/xag.html

W3C
2002

Abstract:

This document provides guidelines for designing Extensible Markup Language (XML) applications that lower barriers to Web accessibility for people with disabilities (visual, hearing, physical, cognitive, and neurological). XML, used to design applications such as XHTML, SMIL, and SVG, provides no intrinsic guarantee of the accessibility of those applications. This document explains how to include features in XML applications that promote accessibility.