There are many theories and theorists in quality management. Of all, Joesph Juran, Edward Deming, and Phillip Crosby and their quality theories are most popular. Let’s look at them one by one…
Joseph M Juran
- Proposed the 80/20 principle or Pareto Principle – roughly 80% of the effects come from 20% of the causes.
- Defines Quality as “Fitness for use”.
- Juran advocated involvement Top Management of the organization in promoting, developing and controlling quality.
W. Edwards Deming
- He advocated the Plan-Do-Study-Act (PDSA) cycle or Plan-Do-Check-Act (PDCA) cycle for quality improvement.
- He is popular with his work called ” 14 points for Management”. In Quality management world they say its 14 points for Total Quality Management or Deming’s 14 points.
- He believed that Quality is “Conformance to Requirements”.
- He advocated 1) Zero defects 2) Prevention over Inspection (Quality must be planned in , Not inspected in).
- He proposed the concept of “Cost of Poor Quality”.