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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.

Tools and documentation

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)
  • A
    4% (2)
  • B
    92% (48)
  • C
    2% (1)
  • D
    2% (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.

ARun charts

Run charts display data over time and are used to identify trends or shifts, not specifically root causes.

BIshikawa diagramsCorrect

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.

CHistograms

Histograms show the frequency distribution of a dataset and are used to understand data spread and central tendency, not direct root causes.

DPareto charts

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

Topics

#Ishikawa diagrams#root cause analysis#quality control tools

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