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| Criterion |  Decision Making Three-Point Estimation |  Operations Fishbone Diagram |  Operations Root Cause Tree Analysis |
|---|---|---|---|
Purposedifferent | A single estimate for effort, time, or risk often looks too smooth for the real uncertainty behind it. It separates options, evaluation criteria, and open risks. The result is captured as a Three-Point Estimate, Risk Range, and Assumption 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. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 10-30 min je Item | 30-60 min | 1-3 h |
Participantsdifferent | 1-8 | 2-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Three-Point Estimate, Risk Range, Assumption Notes | Fishbone Diagram, Cause Categories, Investigation Backlog | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | EstimationUncertaintyForecasting | Root causeQualityOperations | Root causeTreeIncidentQuality |
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