Strictlyspeaking,QFD is just athought,akindof methodology of product developmentmanagement and quality assurance.As for howto decompose step by step and configuratcustomers'reguirements into the each pcess ofproduct development, it has no fixed patternand decomposition model,we can decomposeand configurat it according to different purposeand different routes,mode decomposition anddecompositionmodel.E-mail:cunrong_li@163.com2025/8/7
Strictly speaking, QFD is just a thought, a kind of methodology of product development management and quality assurance. As for how to decompose step by step and configurat customers' requirements into the each pcess of product development, it has no fixed pattern and decomposition model, we can decompose and configurat it according to different purpose and different routes, mode decomposition and decomposition model. 2025/8/7 E-mail:cunrong_li@163.com
Typical QFD model forthe waterfall decompositionProducttechnicalKeyequiremen顾客斋求tsKeycomponenProductcharacterisprocessKeyprocess/qualityticsplanning关键零件特妆control parametermatrixcomponent关键工艺步顶Prcocess/planningProcessmatrixplanningqualitymatrixcontrolmatrixE-mail:cunrong_li@163.com2025/8/717
Product planning matrix 顾 客 需 求 Product technical requiremen ts component planning matrix 产 品 技 术 需 求 Key component characteris tics Process/ quality control matrix 关 键 工 艺 步 骤 Process planning matrix 关 键 零 件 特 性 Key process Typical QFD model for the waterfall decomposition Key process/quality control parameter 2025/8/7 17 E-mail:cunrong_li@163.com
Several typical QFD waterfalldecomposition modelo1.Decomposed into5qualityhouse matrices;CustomerneedsSupplierdetailedtechnicalreguirementsSystem detailedtechnicalrequirementsSubsystemdetailedtechnicalrequirementsManufacturingComponentE-mail:cunrong_li@163.comprocess detaildetailtechnicaltechnical2025/8/718requirementsrequirements
Several typical QFD waterfall decomposition model 1. Decomposed into 5 quality house matrices; Subsystem detailed technical requirements Supplier detailed technical requirements System detailed technical requirements Manufacturing process detail technical requirements Component detail technical requirements 2025/8/7 18 E-mail:cunrong_li@163.com Customer needs
QFD waterfall decomposition model2.According to customer demand (Decomposed into5qualityhouse matrices)Technical reguirements (important,difficultand new performance requirements)Subsystem / component characteristics(important, difficult and new subsystemcomponent technology requirements)-Manufacturing process requirements(important, difficult and new manufacturingprocess technical requirements)Statistical process control(important, difficult and new process controlE-mail:cunrong_li@163.com2025parameters)19
QFD waterfall decomposition model 2. According to customer demand（Decomposed into 5 quality house matrices ） →Technical requirements (important, difficult and new performance requirements) →Subsystem / component characteristics (important, difficult and new subsystem / component technology requirements) →Manufacturing process requirements (important, difficult and new manufacturing process technical requirements) →Statistical process control (important, difficult and new process control parameters). 2025/8/7 E-mail:cunrong_li@163.com 19
QFD waterfall decomposition model3. According to customer requirements (It isdecomposed into four hoq matrix)Productdemand-ComponentfeatureProcesssteps→Technology and quality controlparameters.E-mail:cunrong_li@163.com2025/8/720
QFD waterfall decomposition model 3. According to customer requirements (It is decomposed into four hoq matrix) →Product demand →Component feature →Process steps →Technology and quality control parameters. 2025/8/7 20 E-mail:cunrong_li@163.com