Principles

Seven principles of universal design:

• Equitable use - the design is able to be used by people of all abilities.
   
• Flexibility in use - the design accommodates a variety of individual abilities.
   
• Simple and intuitive use - using the design is easy to understand regardless of an individual's experience, knowledge, language skills, or current concentration level.
   
• Perceptible information - the design effectively communicates necessary information to the user.
   
• Tolerance for error - the design minimizes hazards and adverse consequences of accidental or intended actions.
   
• Low physical effort - the design can be used comfortably and efficiently, with minimal effort.
   
• Size and space for approach and use - sufficient size and space is provided for reaching, approaching, and manipulating objects regardless of users' body size, posture, or mobility.