View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Operations Fault Tree Analysis |  Product Discovery Assumption Mapping |  Product Discovery Learning Card |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | 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. |
Complexitydifferent | High | Medium | Low | Low |
Timedifferent | 2-6 h | 45-60 min | 25-40 min | 45-90 min |
Participantsdifferent | 3-8 | 2-8 | 1-5 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Assumption map, Test backlog, Risk ranking | Learning Card with evidence and next action | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | RiskRoot causeSafety | AssumptionsRiskExperimentsValidation | ExperimentsValidationDiscoveryLearning | AssumptionsRiskDecisionDiscovery |