Product design quality F-G evaluation in life cycle

It is proved that the quality and cost of production is affected by the product design quality to a large extend, so the evaluation on product design is very necessary. The problem of traditional evaluation method is analyzed in this paper, and the conception of product design quality evaluation in life cycle is proposed. A flexible hierarchy evaluation index system structure is set up to support the computer-aided evaluation. According to the characteristic of evaluation index system the method of F-G (Fuzzy and Grey theory) evaluation is used, which provide a new method to realize the comprehensive evaluation of product design quality.