Research on comprehensive quality evaluation method of oriented-product life cycle

Seeing that the influence quality factors of product life cycle are multi-object, multi-level, interconnection and interaction, which possess uncertainty and fuzziness obviously, in order to product quality, quality evaluation mathematical model based on Fuzzy Analytical Hierarchy Process (FAHP) and Fuzzy Comprehensive Evaluation (FCE) was proposed to evaluate product quality. This method introduced the triangular fuzzy number to represent experts' judgment information of product quality and used the AHP to rank these influence quality factors. At last, FCE was used to make the results of product quality evaluation more scientific and effective. The product of some Heavy Machinery Enterprise (coal grinding mill) was introduced as an example to demonstrate the rationality and validity of the method.