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| Criterion |  Operations Failure Mode and Effects Analysis |  Product Strategy DIBB |  Operations Fishbone Diagram |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | 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. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | High | Low | Low | Medium |
Timedifferent | 2-6 h | 1-2 h | 30-60 min | 45-60 min |
Participantsdifferent | 3-10 | 2-8 | 2-8 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | FMEA Table, Risk Priority, Mitigation Actions | DIBB document, Belief list, Bet list, Learning report | Fishbone Diagram, Cause Categories, Investigation Backlog | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | RiskQualityOperationsRoot cause | StrategyDecisionAssumptionsHypothesis | Root causeQualityOperations | AssumptionsRiskExperimentsValidation |