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Project Management & Agile · Advanced

Tornado Diagram

A bar chart used in sensitivity analysis that ranks variables by their effect on an outcome, with the largest at the top.

Definition

Its funnel shape shows which uncertainties matter most, guiding where to focus risk responses.

Example

The top bar shows hardware cost uncertainty swings total cost by plus or minus $300k.

Exam tip

Identify the most influential risk by the widest (top) bar.

Related terms