Equitable Use: The design that is useful and marketable to people with diverse abilities.
Perceptible Information: The design that communicates necessary information effectively to the user, regardless of ambient conditions or the user's sensory abilities.
Tolerance for Error: The design that minimizes hazards and the adverse consequences of accidental or unintended actions.
Low Physical Effort: The design that can be used efficiently and comfortably, and with a minimum of fatigue.
Size and Space for Approach and Use: The design that provides appropriate size and space for approach, reach, ...