This may be helpful somewhere. While an interesting exercise, I do not feel that this is needed in the document itself. I would also suggest that there are needs for people with physical difficulties. A good place to start is to think about what it would take to make a Web site accessible to individuals who are both deaf and blind. An individual who is deaf-blind cannot hear or see and therefore are unable to access Web content, which usually assumes both visual and auditory senses.
Braille displays allow Web users who are deaf-blind to receive braille information from computers.
Special software can take text from the Web site and output it, line by line to a braille display that raises or lowers dot patterns representing the braille characters. For example, considering a video with accompanying audio. One must generate a text transcript that describes the sounds, visual actions, and spoken dialogue. When text equivalents for the various non-text components have been generateed and organized for Web delivery, the person can access the content via the braille display. Fortunately, when one has brought down the access barriers for individuals who are deaf-blind, one has gone most of the distance for people in other disability groups.