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Unformatted text preview: 60s - 1980s) 10 Walter A. Shewhart
Pioneer of modern quality control
Recognized the need to separate variation into assignable
and unassignable causes (defined “in control”.)
Founder of the control chart” (e.g. X-bar and R chart).
Originator of the plan-do-check-act cycle.
Perhaps the first to successfully integrate statistics,
engineering, and economics.
Defined quality in terms of objective and subjective quality
objective quality: quality of a thing independent of people.
subjective quality: quality is relative to how people perceive
it. (value) W. Edwards Deming
Taught engineering, physics in the
1920s, finished PhD in 1928
Met Walter Shewhart at Western
Long career in government
statistics, USDA, Bureau of the
During WWII, he worked with US
defense contractors, deploying
Sent to Japan after WWII to work
on the census 11 Deming
Deming was asked by JUSE to lecture on statistical
quality control to management
Japanese adopted many aspects of Deming’s
Deming stressed “continual never-ending improvement”
Deming lectured widely in North America during the
1980s; he died 24 December 1993 Deming’s 14 Points
Create constancy of purpose toward improvement
2. Adopt a new philosophy, recognize that we are in a time
of change, a new economic age
3. Cease reliance on mass inspection to improve quality
4. End the practice of awarding business on the basis of
5. Improve constantly and forever the system of production
6. Institute training
7. Improve leadership, recognize that the aim of
supervision is help people and equipment to do a better
8. Drive out fear
9. Break down barriers between departments 12 Deming’s 14 Points
Eliminate slogans and targets for the workforce such as
11. Eliminate work standards
12. Remove barriers that rob workers of the right...
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- Spring '14