PK0-003 · Question #221
Which of the following can aid in the identification of root causes of defects?
The correct answer is B. Ishikawa diagrams. Ishikawa diagrams, also known as fishbone or cause-and-effect diagrams, are specifically designed to help identify the potential root causes of a problem or defect.
Question
Which of the following can aid in the identification of root causes of defects?
Options
- ARun charts
- BIshikawa diagrams
- CHistograms
- DPareto charts
How the community answered
(52 responses)- A4% (2)
- B92% (48)
- C2% (1)
- D2% (1)
Why each option
Ishikawa diagrams, also known as fishbone or cause-and-effect diagrams, are specifically designed to help identify the potential root causes of a problem or defect.
Run charts display data over time and are used to identify trends or shifts, not specifically root causes.
Ishikawa diagrams visually map out all potential causes of a problem, categorized into areas like people, process, equipment, environment, and materials, making them effective for root cause analysis of defects. By systematically exploring contributing factors, these diagrams facilitate a comprehensive understanding of why a defect occurred.
Histograms show the frequency distribution of a dataset and are used to understand data spread and central tendency, not direct root causes.
Pareto charts show the relative frequency of problems or causes in descending order, helping identify the most significant issues, but not the underlying root causes themselves.
Concept tested: Root cause analysis using Ishikawa diagrams
Source: https://asq.org/quality-resources/fishbone
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