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Six Sigma Black Belt Exam Prep

Category - Black Belt

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Kaoru Ishikawa worked with other quality professionals such as W.E. Deming to advance quality management. Among his philosophies was for a company to put quality as its greatest priority and not short term profits. Ishikawa is also credited with the development of:
  1. CTQ diagram
  2. kaizen diagram
  3. SWOT analysis
  4. cause-and-effect diagram
Explanation
Answer: D - Ishikawa is also credited with the development of the cause-and-effect diagram.

Key Takeaway: A cause-and-effect diagram is a quality improvement and control tool that matches a process component’s cause with its effects. The goal of this type of diagram is to provide a visual display to employees and management in understanding where in a given process problems are likely to occur and lead to defects in a product or service.
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