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| Criterion |  Decision Making Risk Matrix |  Decision Making Assumption Surfacing |  Domain Modeling EventStorming |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | When a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. | 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 a domain consists of many events, rules, and states, it creates a shared modeling space for the team. It bundles language, flows, and boundaries before domain knowledge fragments into siloed views. | 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 | Medium | Medium |
Timedifferent | 30-60 min | 45-90 min | 2-8 h | 45-60 min |
Participantsdifferent | 3-10 | 2-8 | 5-12 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Risk Matrix, Top Risk List | Assumption List, Critical Assumptions, Learning Plan | Event Timeline, Ubiquitous Language, Boundaries, Open Questions | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | RiskDecisionPrioritizationAssessment | AssumptionsRiskDecisionDiscovery | Domain-Driven DesignEventsDiscoveryWorkshop | AssumptionsRiskExperimentsValidation |