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| Criterion |  Decision Making PERT Estimation |  Operations Fishbone Diagram |  Agile Three Amigos |  Facilitation Dot Estimation |
|---|---|---|---|---|
Purposedifferent | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | When story, test, and implementation could drift apart, it brings business perspective, engineering, and quality together early. It prevents a story from being read differently only late in the process. | When size or effort can only be estimated roughly, Dot Estimation condenses the group's experience into a quick range. It turns individual contributions into a visible selection. The result is captured as an Effort Heatmap, Risk Signals, and Discussion Targets. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 15-45 min | 30-60 min | 15-30 min | 5-20 min |
Participantsdifferent | 1-8 | 2-8 | 3 | 3-20 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | PERT Estimate, Expected Value, Risk Notes | Fishbone Diagram, Cause Categories, Investigation Backlog | Clarified Story, Test Examples, Open Questions | Effort Heatmap, Risk Signals, Discussion Targets |
Tagsno overlap | EstimationUncertaintyRisk | Root causeQualityOperations | CollaborationBehavior-Driven DevelopmentQualityRefinement | EstimationEffortRisk |