Average statistical resultsThe obvious quality failure costs just like the tipof the iceberg in the ice river, while the iceberghidden in the bottom of the water is the obscurepart of the loss of fault quality, about 90% of thetotal loss If we can control the obvious part of quality loss.especially the obscure part, and reduce it , theenterprise's total cost can be reduced greatly, theobtained enterprise benefits and social benefitswill be very considerable
Average statistical results ◼ The obvious quality failure costs just like the tip of the iceberg in the ice river, while the iceberg hidden in the bottom of the water is the obscure part of the loss of fault quality, about 90% of the total loss。 ◼ If we can control the obvious part of quality loss, especially the obscure part, and reduce it , the enterprise's total cost can be reduced greatly, the obtained enterprise benefits and social benefits will be very considerable
Quality fluctuation and quality costThe quality fluctuation comes from two aspectsthe system factor, the accidental factor. Japanese quality experts put forward therelationship between quality fluctuation andquality loss:L(y) = k(y-m)2
Quality fluctuation and quality cost ◼ The quality fluctuation comes from two aspects: the system factor, the accidental factor. ◼ Japanese quality experts put forward the relationship between quality fluctuation and quality loss： L(y) = k(y-m)2
Quality fluctuation and costquality lossfunctionL(y)L(y) = k(y-m)2MM-△M+△L(y)-ThefluctuationlossofqualitycharacteristicsforyThe quality characteristic value of the actual measurementy-Standardvalueofqualitycharacteristic.m△Thedeviation betweentheactualvalueandthestandard valuek-Ratio constant
Quality fluctuation and cost L(y) y M-Δ M M+Δ L(y)——The fluctuation loss of quality characteristics for y. y——The quality characteristic value of the actual measurement. m——Standard value of quality characteristic. Δ——The deviation between the actual value and the standard value. k——Ratio constant. quality loss function L(y) = k(y-m)2
The basic task of quality cost managementProper standard quality lossHow to take effective measures to control andreduce the loss of qualityExpressing the work in the form of moneyAbove constitute the basic task of qualitycostmanagement
The basic task of quality cost management ◼ Proper standard quality loss ◼ How to take effective measures to control and reduce the loss of quality ◼ Expressing the work in the form of money Above constitute the basic task of quality cost management