View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion | ![]() Product Discovery Assumption Mapping | ![]() Decision Making Pre-Mortem | ![]() Operations Barrier Analysis | ![]() Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | 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 | Medium | Low | Medium | Low |
Timedifferent | 45-60 min | 20–45 min | 2-4 h | 45-90 min |
Participantsdifferent | 2-8 | Small cross-functional group | 2-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Assumption map, Test backlog, Risk ranking | Risk list, Mitigation plan, Assumption log | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | AssumptionsRiskExperimentsValidation | RiskDecisionFailurePlanning | Root causeSafetyIncident | AssumptionsRiskDecisionDiscovery |



