Research On Method Of Design & Development Of Extensional Product In Product System

Facing the product competition pressure, the extensional product becomes a newborn strength gradually to find own position in the market to receive favourite from the enterprise and the consumer. The extensional product is the new product type which is from the concept of the product system. Its characteristic and the design method in the industrial design domain are the new research content. The extensional product has the very big market potential and the development space, therefore the research of the design method of the extensional product has the positive theory significance and the practice significance.The paper has firstly been clear about the product and the product system concept, and analyzed in the product system three constituent parts namely: the original product, the ontic product and the extensional product and has carried on the explanation to three new concepts. Then based on the foundational knowledge of the product system characteristic, the paper has analyzed the product system theory constitution as well as the reciprocity between them. These ideas lay the rationale to discuss the extensional product about the design and development in the back.The extension product is key point in the research, therefore the article introduces in detail the extensional product definition, summarizes the extensional product four major characteristics: the dependence, the interaction, the subdivides and the development. The extensional product design and development needs a clear theory of conduction. At present, the product design methods still have positive significance, but still have the limitation. This article based on the consumer psychology demand characteristic as well as the extensional product characteristics and the design development principles, penetrates these actual problems, proposed a solution to the extensional product design and development question: the function action method and the experience action method, to instruct the design and development of the extensional product. The design & development five principles are: the integrity, the resources optimize, the more pleasant, the time principle and the instruction. The design principles can make all design suitable to the trend of design and market.Moreover, the article proposes the extensional product design & development model. The methods of FA and EA as well as the principles will be used in this model. It will be power to practice. The theory knowledge becomes the direction and the basis for the research of extensional product design method and development.Finally, the article takes the extensional products of automobile as an example, apply the function action method and the experience action method to analysis the method of design and development, to proof the design method being rationality and validity, and places hopes onto the application prospect.