Making Documentation Accessible to Users With Disabilities
http://www.stc.org/ConfProceed/2003/PDFs/STC50-080.pdf

Chappell, Gail B.
STC Proceedings
2003

Abstract:

Good documentation takes into account the needs of people with disabilities. Such documentation is termed 'accessible' and provides support for the assistive technologies used by people with disabilities. For example, accessible documentation provides a text equivalent for each graphic element, such as a picture, flow diagram, or icon. This provision is necessary for users who rely on screen readers to read the documentation.