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C720 Questions and Correct Answers
Crosby Ans: Used the phrase, "do it right the first time".
Wrote a book in 1979 entitled, "Quality is Free" and concept of
zero defects as a measurable object.
Emphasized the importance of considering all costs of quality.
Juran Ans: Focus was on the customer's perception of quality.
Quality must be built on three elements: quality planning, quality
control, and quality improvement.
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Focused on Fitness for use and Pareto Principle
Taguchi Ans: - Used Robust Design and Parabolic Quality Loss
Function
- Perfecting of experiments to create higher quality products and
processes
- Argues that quality must be designed into a product
Deming Ans: - Had 14-point quality plan and focused on
Statistical Process Control (SPC)
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- "system" caused defects, not employees and Endorsed the
elimination of fear in the organization
-Modified Walter Shewart's Plan "Do-Check-Act (PDCA)" to "Plan-
Do-Study-Analyze (PDSA)"
Ishikawa Ans: - Developed Fishbone Chart aka cause and effect
diagram
- teamwork is essential for quality leadership
- Developed quality circles to solve problems lead by a champion
(sr. manager) to oversee & approve
© 2025 All rights reserved
C720 Questions and Correct Answers
Crosby Ans: Used the phrase, "do it right the first time".
Wrote a book in 1979 entitled, "Quality is Free" and concept of
zero defects as a measurable object.
Emphasized the importance of considering all costs of quality.
Juran Ans: Focus was on the customer's perception of quality.
Quality must be built on three elements: quality planning, quality
control, and quality improvement.
© 2025 All rights reserved
, 2 | Page
Focused on Fitness for use and Pareto Principle
Taguchi Ans: - Used Robust Design and Parabolic Quality Loss
Function
- Perfecting of experiments to create higher quality products and
processes
- Argues that quality must be designed into a product
Deming Ans: - Had 14-point quality plan and focused on
Statistical Process Control (SPC)
© 2025 All rights reserved
, 3 | Page
- "system" caused defects, not employees and Endorsed the
elimination of fear in the organization
-Modified Walter Shewart's Plan "Do-Check-Act (PDCA)" to "Plan-
Do-Study-Analyze (PDSA)"
Ishikawa Ans: - Developed Fishbone Chart aka cause and effect
diagram
- teamwork is essential for quality leadership
- Developed quality circles to solve problems lead by a champion
(sr. manager) to oversee & approve
© 2025 All rights reserved
