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| Criterion |  Knowledge Modeling Competency Questions |  Product Discovery Fake Door Test |  Product Discovery Test Card |
|---|---|---|---|
Purposedifferent | Competency Questions translate a domain model into concrete questions that it must be able to answer. The method keeps the model's scope clean and prevents pretty but useless structures. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 2-4 h | 1-5 Tage | 20-35 min |
Participantsdifferent | 2-8 | Nutzertraffic | 1-5 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Competency Question Set, Required Concepts, Test Queries, Coverage Matrix | Click Data, Interest Signal, Learning Decision | Test Card with a pre-set threshold |
Tagsno overlap | OntologyKnowledge graphScopeRequirementsSemantic | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryHypothesis |
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