PMI CAPM (Certified Associate in Project Management) Examination Content OutlineQuality Management and Continuous Process ImprovementHard
A project is experiencing frequent delays due to miscommunications between the design and development teams, leading to rework. The project manager wants to implement a solution that not only addresses the current issue but also prevents similar problems from occurring in future projects. Which continuous improvement tool or technique would be MOST appropriate for identifying the underlying systemic cause of these miscommunications?
- AScatter Diagram
- BPareto Chart
- CControl Chart
- DFishbone Diagram
Show answer & explanationAnswer & explanation
Correct answer: D. Fishbone Diagram
A Fishbone Diagram (also known as an Ishikawa or Cause-and-Effect Diagram) is specifically designed to help teams systematically identify and categorize the potential root causes of a problem or effect. It's ideal for a situation like miscommunications where multiple factors (people, process, equipment, environment, etc.) might be contributing.
Why the other options are wrong
- A. A Scatter Diagram shows the relationship between two variables, useful for correlation, but not for brainstorming multiple potential root causes.
- B. A Pareto Chart helps prioritize problems by showing the frequency of occurrences, but doesn't inherently identify the root causes.
- C. A Control Chart is used to determine if a process is in statistical control, not to identify root causes of a specific problem.
Fishbone Diagram (Cause-and-Effect)
A visual tool used to explore and identify the potential root causes of a specific problem or effect.
- Organizes causes into categories (e.g., Man, Machine, Material, Method, Measurement, Environment).
- Helps in brainstorming and structuring root cause analysis.
- Also known as Ishikawa Diagram.
Memory trick: To find 'why', use Fishbone to identify causes that lie.