Principle 3 SIMPLE AND INTUITIVE USE
Understanding how to use the design is easy, regardless of the user's experience, knowledge, language skills, or concentration level.
These products are NO more complicated than necessary, and put NO users at a DISadvantage. They are about what you would expect (or can figure out), and usable whether OR NOT you speak or read the language used in the directions. The products also give clues to help users know they’re on the right track during and after completing the task.
Sources: The Center for Universal Design,
North Carolina State University, Raleigh, NC, and The Lighthouse, New
Designers: Robert Wise and Kathleen Campisano, Century Products Co., with Thomas McLinden and W. Daniel Haberstich of Anderson Design Associates, Plainville, CT.