Principle One: Equitable Use
“The design is useful and marketable to people with diverse abilities. Provide the same means of use for all users: identical whenever possible; equivalent when not.” The virtual environment is far more flexible than the physical one. A single book cannot serve multiple readers because of the limitations of the printed page. An online book can be made larger, smaller, colored, copied, printed, read aloud. The flexibility of the web provides an excellent opportunity to design for “same means of use.”