Abstract: Design for product family is an efficient way to guarantee the idea of mass customization to be implemented successfully, which is also an extension onto the conventional methodology of product design. A kind of methodology of product family design, which aims to provide methodological guidance for manufacturers who plan to implement strategy of product family design, is presented. In contrast with the conventional methodology of designing for single product, the methods of requirement modeling, function- principle modeling, and structure modeling in details according to the different design stage are respectively illustrated.

Key words: Product platform, Mass customization, Product family