Web accessibility is designing websites that provide enjoyable, efficient, learnable, predictable and memorable user experience for users who have some form of disability.
- Users who cannot see, hear, move, or able to process some types of information easily.
- Users that have difficulty reading or understanding text.
- Users who may not be able to use a keyboard or mouse.
- Users with text-only screen, a small screen or slow internet connection.
- Users who have earlier versions of a browser or different operating system.
(Publication Source: Interaction Design, by Sharp, Rogers, Preece, pg. 256)
In general, it is respectful to make Web content more usable and understandable to all audiences.