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| Criterion |  Decision Making Assumption Surfacing |  Operations Failure Mode and Effects Analysis |  Product Strategy DIBB |  Operations Kepner-Tregoe |
|---|---|---|---|---|
Purposedifferent | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Low | High | Low | High |
Timedifferent | 45-90 min | 2-6 h | 1-2 h | 2-8 h |
Participantsdifferent | 2-8 | 3-10 | 2-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | FMEA Table, Risk Priority, Mitigation Actions | DIBB document, Belief list, Bet list, Learning report | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | RiskQualityOperationsRoot cause | StrategyDecisionAssumptionsHypothesis | Problem solvingRoot causeDecisionOperations |