| Just as what Professor Yin Dingbang had said that the terminal aim of design forever is functionality and taste of beauty, the research for design is always concerned with taste of beauty and functionality. Design is a work of art, and it requires learners to keep on studying and pursuing the taste of beauty. At the same time, design is also a social work that requires learners to study the practical value of design and make design more functionality to better serve social and people. Now, as the social circumstance is undertaking world-shaking change, commercial economy has penetrated into the field of every trade, so the functional feature of design in the commercial service is becoming more and more important. On the premise of commercial economy, we should study design as a special commodity. Designers are people who produce the commodity, and customers are people who want to purchase the commodity. The problems of producing commodity that can be best sell, making commodity that satisfies customer's needs, and realizing the value of the commodity requires not only production ability of producer, but also the ability of sales promotion. If a designer understand customer's needs and motive, and also he has professional design idea and the ability to cooperate with customers, he will tend to solve customer's functional problem through design, and good idea of design will also be used widely by customers. |