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| Criterion |  UX Design Service Blueprinting |  Product Discovery Fake Door Test |  Product Discovery Smoke Test |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | When a service experience is spread across several touchpoints, it brings frontstage and backstage together. It shows where user contact and internal responsibility must fit. | 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. | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | High | Medium | Low | Low |
Timedifferent | 0.5-2 Tage | 1-5 Tage | 1-5 Tage | 25-40 min |
Participantsdifferent | 6-12 | Nutzertraffic | Nutzertraffic | 1-5 |
Formatdifferent | Workshop | Async | Async | Workshop + async |
Outputdifferent | Service Blueprint, Fail Points, Ownership Map | Click Data, Interest Signal, Learning Decision | Interest Metrics, Conversion Signal, Learning Note | Learning Card with evidence and next action |
Tagsno overlap | Service designOperationsJourneyBlueprint | ValidationExperimentsDemandDiscovery | ValidationExperimentsDemandGrowth | ExperimentsValidationDiscoveryLearning |