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| Criterion |  Innovation Brainwriting |  Decision Making Pre-Mortem |  Decision Making Assumption Surfacing |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | When loud voices or hierarchy distort the idea search, the method creates a quiet entry into joint development. It gives everyone thinking space and gathers contributions without social brakes, making diversity more visible and easier to build on. | 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. | 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. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 15-30 min | 20–45 min | 45-90 min | 45-60 min |
Participantsdifferent | 3-12 | Small cross-functional group | 2-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Idea sheets, Expanded concepts, Prioritized list | Risk list, Mitigation plan, Assumption log | Assumption List, Critical Assumptions, Learning Plan | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | BrainstormingCollaborationInclusionIdeas | RiskDecisionFailurePlanning | AssumptionsRiskDecisionDiscovery | AssumptionsRiskExperimentsValidation |