HOW PROTOTYPES ARE USED
Physical prototypes are used in myriad ways to solve problems and develop a better understanding of design requirements. In conjunction with sketches and other design methods they aid in: idea exploration, user testing, communication, design verification, and standards testing. A single prototype often has more than one function: for example, exploration often involves some simple user testing as well. The following categorizations are not meant to be prescriptive, but rather draw attention to the many uses of prototypes.