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| Criterion |  UX Design Service Blueprinting |  Product Discovery Test Card |  Product Discovery Fake Door 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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 | High | Low | Medium | Low |
Timedifferent | 0.5-2 Tage | 20-35 min | 1-5 Tage | 25-40 min |
Participantsdifferent | 6-12 | 1-5 | Nutzertraffic | 1-5 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | Service Blueprint, Fail Points, Ownership Map | Test Card with a pre-set threshold | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action |
Tagsno overlap | Service designOperationsJourneyBlueprint | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning |