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Many prominent Quality Gurus have emerged within the quality field, but some have stood out as key figures of quality. Most have passed away, but their memory still lives on in the ideas, concepts, and methods that permeate our quality thinking today.
Top Quality Gurus
In no particular order, the Top Ten Quality Gurus are:
1. Dr. Walter Shewhart
First of the Top Ten Quality Gurus is Walter Shewhart. Dr. Shewhart developed the Plan, Do, Check, Act (PDCA) cycle (known as “Plan-Do-Study-Act” in some circles, as well as theories of process control and the Shewhart transformation process.
2. Dr. W. Edwards Deming
Dr. Deming developed his complete philosophy of management, which he encapsulated into his “fourteen points” and the “seven deadly diseases of management”. He advanced the state of quality, originally based on work done by Shewhart with his explanations of variation, use of control charts, and his theories on knowledge, psychology and variation.
Deming greatly helped to focus the responsibility of quality on management and popularized the PDCA cycle, which led to it being referred to as the “Deming Cycle”.
3. Dr. Joseph M. Juran
Dr. Juran developed the quality trilogy – quality planning, quality improvement, and quality control. Quality management plans quality improvements that raise the level of performance, which then must be controlled or sustained at that level in order to start the cycle again.
4. Armand V. Feigenbaum
Mr. Feigenbaum developed the idea of total quality control based on three steps to quality consisting of quality leadership, modern quality technology, and an organizational commitment to quality.
5. Dr. Kaoru Ishikawa
Dr. Ishikawa developed the Ishikawa diagram, also known as the fishbone or cause-effect diagram. He was known for popularizing the seven basic tools of quality and the philosophy of total quality.
6. Dr. Genichi Taguchi
Dr. Taguchi developed the “Taguchi methodology” of robust design, which focused on making the design less sensitive to variation in the manufacturing process, instead of trying to control manufacturing variation. This idea of ”designing in quality” has become an important tenant of six sigma today.
7. Shigeo Shingo
Shigeo Shingo developed lean concepts such as Single Minute Exchange of Die (SMED) or reduced set-up times instead of increased batch sizes, as well as Poka-Yoke (mistake proofing) to eliminate obvious opportunities for mistakes. He also worked with Taiichi Ohno to refine Just-In-Time (JIT) manufacturing into an integrated manufacturing strategy, which is widely used to define the lean manufacturing used in the Toyota production system (TPS).
8. Philip B. Crosby
Philip B. Crosby was the quality guru that developed the idea of “quality is free” which asserts that implementing quality improvement pays for itself through the savings from the improvement, increased revenue from greater customer satisfaction, and the improved competitive advantage that results. He popularized “zero defects” to define the goal of a quality program as the elimination of all defects and not the reduction of defects to an acceptable quality level.
9. Dr. Eliyahu M. Goldratt
Dr. Goldratt developed the Theory of Constraints which focuses on a single element in a process chain as having the greatest leverage for improvement (i.e., “1% can have a 99% impact”). This compares to the Pareto principle which states that 20% of the factors have an 80% effect on the process.
10. Taiichi Ohno
Last of the Top Ten Quality Gurus we will discuss is Taiichi Ohno. He developed the seven wastes (muda), which are used in lean to describe non-value-added activity. He developed various manufacturing improvements with Shigeo Shingo that evolved into the Toyota Production System.
Top Ten Quality Gurus
- Dr. Walter Shewhart
- Dr. W. Edwards Deming
- Dr. Joseph M. Juran
- Armand V. Feigenbaum
- Dr. Kaoru Ishikawa
- Dr. Genichi Taguchi
- Shigeo Shingo
- Philip B. Crosby
- Dr. Eliyahu M. Goldratt
- Taiichi Ohno