Evolution of Quality Concepts:

History of Quality Concepts

1875 Taylorism (inspect, detect defects)
1925 Shewhart (statistical process control)
1930s Dodge/Roming acceptance sampling methods
1950s Deming's approach to quality and productivity management
1950s Taguchi's robust design
1980s The U.S. organizations recognize Deming's approach
1990s Turkish organizations recognize Deming's approach
2000s Many Turkish organizations excel at TQM, but building quality upstream is not emphasized yet

Walter A. Shewhart

pioneer and visionary of modern quality control
developed control charts (e.g., X-bar and R charts)
statistical contributions
define two common aspects of quality
objective quality: independent of existence of man
subjective quality: relative to what man thinks, feels or senses

W. Edwards Deming

described the "chain reaction", Out of Crisis

 
proposed a 14-point quality architecture, Out of Crisis
  1. Create and publish to all employees a statement of the aims and purposes of the company or other organization. The management must demonstrate constantly their commitment to this statement.
  2. Learn the new philosophy, top management and everybody.
  3. Understand the purpose of inspection for improvement of process and reduction of cost.
  4.   End the practice of awarding business on the basis of price tag alone.
  5. Improve constantly and forever the system of production and service.
  6. Institute training.
  7. Teach and institute leadership.
  8. Drive out fear. Create trust. Create a climate for innovation.
  9. Optimize toward the aims and purposes of the company the efforts of teams, groups, staff areas.
  10. Eliminate exhortations for the workforce.
  11. a)Eliminate numerical quotas for production. Instead learn and institute methods or improvement.

11 b)Eliminate management by objective. Instead, learn the capabilities of process, and how to improve them.

12. Remove barriers that rob people of pride of workmanship.

13. Encourage education and self-improvement for everyone.

14. Take action to accomplish the transformation.

Witness how Deming influenced Japanase and US manufacturers bu watching this video and its successors.

 

 

creating a work environment that is conducive to quality improvement and pride in workmanship
stressed process stability and system changes as keys to quality improvement
understanding and use of statistical tools
developed the PDCA cycle (Plan, Do, Check, Act)
 
  You may find more on Deming at Deming Web Site.

Joseph M. Juran

quality management
Juran trilogy, Juran on Leadership for Quality
  1. quality planning
  2. quality control
  3. quality improvement
basics of QFD (Quality Function Deployment)

Philip B. Crosby

 

Author of the book:
"Quality is Free"
Crosby's quality philosophy, Quality Without Tears
  1. Quality is defined as conformance to requirements, not goodness or elegance.
  2. The system for causing quality is prevention, not appraisal.
  3. The performance standard must be zero defects, not "that's close enough".
  4. The measurement of quality is the price of nonconformance, not indexes.
14-step program, Quality is Free
  1. Management commitment
  2. Quality improvement team
  3. Quality measurement
  4. Cost-of-quality innovation
  5. Quality awareness
  6. Corrective action
  7. Ad-hoc committee for the zero defects program
  8. Supervisor training
  9. Zero defects day
  10. Goal-setting
  11. Error-cause removal
  12. Recognition
  13. Quality councils
  14. Do it over again

 

SubjectsContents PageEvolution of quality concepts cont'd (Fiegenbaum, Ishikawa, Taguchi, Shingo)


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