QFD（质量功能展开）工具的使用.ppt

Developed 1960s in Japan First Industrial application Mitsubishi’s Kobe shipyard Toyota developed the concept further shortly after1977. Xerox and Ford initiated use of QFD in 1986 Today used successfully by: GM, Motorola, Kodak, IBM, ProcterGamble Customer Satisfaction – existing products fulfilling specified requirements. Improvement Ratio = Planned Performance / Existing Performance Sales Point – weight for marketability Overall Weighting = Importance Weighting x Improvement Ratio X Sales Point Compare performance to 2 key competitors, scale of 1-5. Connect with red line for visual. Ideally, use focus groups or unbiased testing. * What is QFD Goals of QFD Prioritize spoken and unspoken customer wows, wants, and needs Translate these needs into technical characteristics and specifications Build and deliver a quality product or service by focusing everybody toward customer satisfaction History of QFD What is achieved using QFD? Technical correlation matrix used to identify where technical requirements support or impede each other in the product design. This shows if design features are incompatible. Technical requirements (NEED) a structured set of relevant and measurable product characteristics. This the translation of the VOC. It is good practice to be a one-to-one match. Planning matrix depicts customer perceptions observed in market surveys. Contains importance of customer requirements, company and competitor performance in meeting these requirements. Technical priorities, benchmarks and targets records priorities assigned to technical requirements by the matrix, measures of technical performance achieved by competitive products and the degree of difficulty involved in developing each requirement. The final output is a set of target values for each technical requirement to be met, which are linked to the VOC. Customer requirements (WANT) a structured list of requirements derived from customer statements. This is very close to the VOC if you have liste