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| Criterion | ![]() Decision Making Constraint Analysis | ![]() Product Discovery Fake Door Test | ![]() Product Discovery Learning Card | ![]() Product Discovery Smoke Test |
|---|---|---|---|---|
Purposedifferent | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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. | When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 30-90 min | 1-5 Tage | 25-40 min | 1-5 Tage |
Participantsdifferent | 2-8 | Nutzertraffic | 1-5 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action | Interest Metrics, Conversion Signal, Learning Note |
Tagsno overlap | ConstraintsDecisionPlanningOptions | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning | ValidationExperimentsDemandGrowth |



