Universal design is a design concept that recognizes, respects, values and attempts to accommodate the broadest possible spectrum of human ability in the design of all products, environments, and information systems. It requires sensitivity to and knowledge about people of all ages and abilities. Sometimes referred to as "lifespan design" or "transgenerational design," universal design encompasses and goes beyond the accessible, adaptable, and barrier-free design concepts of the past. It helps eliminate the need for special features and spaces, which for some people, are often stigmatizing, embarrassing, different looking and usually more expensive (Duncan, 2014).