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| Criterion |  UX Design Service Blueprinting |  Decision Making Assumption Surfacing |  Product Discovery Learning Card |  Product Discovery Fake Door Test |
|---|---|---|---|---|
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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | 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. |
Complexitydifferent | High | Low | Low | Medium |
Timedifferent | 0.5-2 Tage | 45-90 min | 25-40 min | 1-5 Tage |
Participantsdifferent | 6-12 | 2-8 | 1-5 | Nutzertraffic |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Async |
Outputdifferent | Service Blueprint, Fail Points, Ownership Map | Assumption List, Critical Assumptions, Learning Plan | Learning Card with evidence and next action | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | Service designOperationsJourneyBlueprint | AssumptionsRiskDecisionDiscovery | ExperimentsValidationDiscoveryLearning | ValidationExperimentsDemandDiscovery |