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Selected:Architecture Decision RecordOpportunity Solution TreeAssumption MappingAssumption Surfacing
| Criterion |  Architecture Architecture Decision Record |  Product Discovery Opportunity Solution Tree |  Product Discovery Assumption Mapping |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | When discovery keeps swinging between goals, ideas, and learning loops, it creates clear steering logic. It connects the desired outcome, opportunities, and experiments into a legible structure. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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 | Low | Medium | Medium | Low |
Timedifferent | 15-45 min | 1-2 h Setup, laufend | 45-60 min | 45-90 min |
Participantsdifferent | 1-3 | 2-6 | 2-8 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Opportunity Solution Tree, Experiment Backlog, Learning Log | Assumption map, Test backlog, Risk ranking | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | DiscoveryOutcomesExperimentsOpportunity | AssumptionsRiskExperimentsValidation | AssumptionsRiskDecisionDiscovery |