基于质量功能配置和欧氏范数的产品方案评价

Evaluating Product Scheme Method Based on QFD and Euclid Norm

摘要:

为建立面向顾客满意的贯穿产品全生命周期的方案评价模型,对传统质量功能配置进行了改进,实现了产品全生命周期的瀑布式分解.由于方案中属性权重的确定对后续评价起着至关重要的作用,利用IQFDE(improved quality function deployment and entropy)方法获取指标权重值,达到了主客观相结合的目的.由于备选方案存在模糊性,所以采用模糊理论中的欧氏范数对备选方案进行排序.实例结果表明,基于IQFDE和欧氏范数的产品方案评价方法能够得到面向顾客满意的最优方案.

Abstract:

In order to establish the scheme evaluation model oriented to customer satisfaction through the product life cycle,the traditional quality function deployment(QFD) is improved to actualize the waterfall disassembling.Since the attribute weight plays a vital role in the following evaluation,IQFDE method is brought forward to acquire the weight of each attribute.Analytic hierarchy process(AHP) is used to get the first weight,then the entropy theory is used to obtain the revised weight.In this way,the purpose of combing the subjective and objective weight together is fulfilled.Because the spare schemes own the fuzzy characteristic,the Euclid norm is used to sequence the schemes.It can be testified by the case that the method of IQFDE and Euclid norm can acquire the best scheme oriented to the customer satisfaction.