Designing Pages Accessible to Limited Textual Comprehension Users

Many pages relating to web accessibility address the needs of web users who have sensory limitations -- the classic example of accessible web authoring is the proper use of the ALT attribute of the IMG (image) tag to provide a textual equivalent that benefits, among others, web users with visual impairments. Similarly, keyboard-accessible techniques can open up the World Wide Web to users who are unable to use a mouse or other 'traditional' input device due to motor or dexterity disabilities.

Bartlett, Kynn. Kynn (1999). Design>Web Design>Accessibility