Objectives of QFD Identify exactly what the design goals are and how they are going to be achieved ■I.e,translate“customer requirements”into workable “engineering solutions” a Forces "fresh eyes"on the design problem;prevents getting stuck prematurely with preconceived concepts Reduces risks of delay in new product introduction due to poor specifications,unrecognized interdependencies of specifications,etc... Provides formal record of conceptual design process for documentary,legal,management,benchmarking,etc. Shanghai Jiao Tong University 6
Shanghai Jiao Tong University 6 Objectives of QFD n Identify exactly what the design goals are and how they are going to be achieved n I.e., translate “customer requirements” into workable “engineering solutions” n Forces “fresh eyes” on the design problem; prevents getting stuck prematurely with preconceived concepts n Reduces risks of delay in new product introduction due to poor specifications, unrecognized interdependencies of specifications, etc… n Provides formal record of conceptual design process for documentary, legal, management, benchmarking, etc
CAs and ECs Customer Attributes(CAs):Customers use to describe products and product characteristics. What do customers want? Engineering Characteristics(ECs): Engineers use to describe the products. How can we change the product? Shanghai Jiao Tong University 7
Shanghai Jiao Tong University 7 CAs and ECs n Customer Attributes(CAs) : Customers use to describe products and product characteristics. What do customers want? n Engineering Characteristics(ECs): Engineers use to describe the products. How can we change the product?
The General Process Customer requirements Design requirements Part characteristics Manufacturing operations Production requirements Shanghai Jiao Tong University 8
Shanghai Jiao Tong University 8 The General Process Customer requirements Part characteristics Manufacturing operations Production requirements Design requirements
Building the House ■For a car door Customer Attributes(CAs) Good operation and use Good appearance Shanghai Jiao Tong University 9
Shanghai Jiao Tong University 9 Building the House n For a car door Customer Attributes(CAs) Good operation and use Good appearance
Customer Attributes(CAs Good operation and use -Easy to open and close door Isolation ■Arm rest a Good appearance ■Clean ▣Fit Shanghai Jiao Tong University 10
Shanghai Jiao Tong University 10 Customer Attributes(CAs) n Good operation and use n Easy to open and close door n Isolation n Arm rest n …… n Good appearance n Clean n Fit n ……