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PK0-004 · Question #61

A project manager is trying to ensure the quality of the design and reduce the number of potential defects. The project manager would like to use the fishbone diagram to perform this analysis. This…

The correct answer is C. Causes of a specific event. The fishbone (Ishikawa) diagram is a quality tool that maps potential causes leading to a specific effect or defect. It is used in root cause analysis to visualize contributing factors.

Tools and documentation

Question

A project manager is trying to ensure the quality of the design and reduce the number of potential defects. The project manager would like to use the fishbone diagram to perform this analysis. This type of modeling relies on:

Options

  • APrioritizing the specific event.
  • BVariance in the process over time.
  • CCauses of a specific event.
  • DDetermining the number of events.

How the community answered

(27 responses)
  • B
    4% (1)
  • C
    93% (25)
  • D
    4% (1)

Why each option

The fishbone (Ishikawa) diagram is a quality tool that maps potential causes leading to a specific effect or defect. It is used in root cause analysis to visualize contributing factors.

APrioritizing the specific event.

Prioritizing specific events is associated with Pareto chart analysis, not the fishbone diagram, which organizes causes rather than ranking events by frequency.

BVariance in the process over time.

Variance in a process over time is measured using a control chart, not a fishbone diagram.

CCauses of a specific event.Correct

The fishbone diagram, also called the Ishikawa or cause-and-effect diagram, is specifically designed to identify and categorize the potential causes of a specific event or problem. It visually maps contributing factors along categorical 'bones' leading to a single 'head' effect, making it a standard quality tool for defect prevention and reduction.

DDetermining the number of events.

Determining the number of events is a function of a check sheet or histogram, not a fishbone diagram.

Concept tested: Fishbone diagram cause-and-effect quality analysis

Source: https://www.pmi.org/learning/library/cause-effect-diagram-improvement-tool-8035

Topics

#fishbone diagram#Ishikawa diagram#cause and effect#quality analysis

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