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| Criterion |  UX Design Service Blueprinting |  Product Discovery Opportunity Interview |  Product Discovery Fake Door Test |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
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 opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities. | 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 several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. |
Complexitydifferent | High | Medium | Medium | Medium |
Timedifferent | 0.5-2 Tage | 30-60 min je Interview | 1-5 Tage | 45-75 min |
Participantsdifferent | 6-12 | 5-12 Interviews | Nutzertraffic | 2-8 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop |
Outputdifferent | Service Blueprint, Fail Points, Ownership Map | Interview Notes, Opportunity Themes, Customer Quotes | Click Data, Interest Signal, Learning Decision | Test Matrix, Test Plan |
Tagsno overlap | Service designOperationsJourneyBlueprint | DiscoveryInterviewsOpportunityCustomer | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryOptions |