Three Yardsticks of Product Design

The basic thought of three yardsticks of product design was put forward, combining the classical theory of our country's ancient scientific and technological work and the developing trend of modern design. Yardsticks not only means the superficial "hard yardstick " of material here but also means the " soft yardstick " of serve and the " latent yardstick " of culture symbolized. Hard yardstick, soft yardstick, latent yardstick form three yardsticks system of product design together.