Dieter Rams is a German industrial designer and retired academic closely associated with the consumer products company Braun and the functionalist school of industrial design. His unobtrusive approach and belief in "less but better" design generated a timeless quality in his products and have influenced the design of many products, which also secured Rams worldwide recognition and appreciation. There are 10 design principles to design any humen interaction design. 1. is innovative – The possibilities for progression are not, by any means, exhausted. Technological development is always offering new opportunities for original designs. But imaginative design always develops in tandem with improving technology, and can never be an end in itself. 2. makes a product useful – A product is bought to be used. It has to satisfy not only functional, but also psychological and aesthetic criteria. Good design emphasizes the usefulness of a product whilst disregarding anything that co...