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| Criterion |  Decision Making PERT Estimation |  Growth A/B Testing |  Operations Fishbone Diagram |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
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 two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | 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 process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Medium | High | Low | High |
Timedifferent | 15-45 min | 1-4 Wochen | 30-60 min | 2-6 h |
Participantsdifferent | 1-8 | 1-6 | 2-8 | 3-10 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop |
Outputdifferent | PERT Estimate, Expected Value, Risk Notes | Experiment results, Decision log, Learning summary | Fishbone Diagram, Cause Categories, Investigation Backlog | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | EstimationUncertaintyRisk | ExperimentsGrowthAnalyticsValidation | Root causeQualityOperations | RiskQualityOperationsRoot cause |