W. Edwards Deming Quotes

Quotes in process thinking

The System of Profound Knowledge provides a lens. It provides a new map of theory by which to understand and optimize that we work in, and thus to make a contribution to the whole country.


Inspection does not improve the quality, nor guarantee quality. Inspection is too late. The quality, good or bad, is already in the product. As Harold F. Dodge said, “You can not inspect quality into a product.”


Training for a job must teach the customer’s needs


We cannot rely on mass inspection to improve quality, though there are times when 100 percent inspection is necessary. As Harold S. Dodge said many years ago, ‘You cannot inspect quality into a product.’ The quality is there or it isn’t by the time it’s inspected.


Cease dependence on inspection to achieve quality. Eliminate the need for inspection on a mass basis by building quality into the product in the first place.


To copy is to invite disaster.


American management thinks that they can just copy from Japan—but they don’t know what to copy!


The consumer is the most important point on the production-line.


An operational definition is a procedure agreed upon for translation of concept into measurement of some kind.


Standardization does not mean that we all wear the same color and weave of cloth, eat standard sandwiches, or live in standard rooms with standard furnishings. Homes of infinite variety of design are built with a few types of bricks, and with lumber of standard sizes, and with water and heating pipes and fittings of standard dimensions.