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| Criterion |  Product Discovery Test Card |  Delivery Cost of Delay |  Product Discovery Fake Door Test |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | Helps clarify scope, order, and delivery flow in concrete terms. It makes work, constraints, and sequence manageable. The result is captured as a Cost of Delay table and prioritization sequence. | 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 Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Low | High | Medium | Low |
Timedifferent | 20-35 min | 90-180 min | 1-5 Tage | 25-40 min |
Participantsdifferent | 1-5 | 3-8 | Nutzertraffic | 1-5 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | Test Card with a pre-set threshold | CoD Table, Prioritization Sequence | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action |
Tagsno overlap | ExperimentsValidationDiscoveryHypothesis | PrioritizationDeliveryEconomicsDecision | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning |