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| Criterion |  Domain Modeling EventStorming |  Knowledge Modeling Knowledge Mapping |  Product Discovery Test Card |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | 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. | Knowledge Mapping makes knowledge, gaps, and transfer paths visible across a field. It fits when expertise should not just exist but also be findable and transferable. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 2-8 h | 1-3 h | 20-35 min | 45-60 min |
Participantsdifferent | 5-12 | 3-12 | 1-5 | 2-8 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Event Timeline, Ubiquitous Language, Boundaries, Open Questions | Knowledge Map, Critical Knowledge Areas, Transfer Plan | Test Card with a pre-set threshold | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | Domain-Driven DesignEventsDiscoveryWorkshop | KnowledgeMappingRisk | ExperimentsValidationDiscoveryHypothesis | AssumptionsRiskExperimentsValidation |