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| Criterion |  UX Design Service Blueprinting |  Product Discovery Problem Interview |  Product Discovery Riskiest Assumption Test |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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 the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | High | Medium | Medium | Medium |
Timedifferent | 0.5-2 Tage | 30-60 min je Interview | 1-2 Wochen pro Iteration | 45-60 min |
Participantsdifferent | 6-12 | 5-12 Interviews | 2-6 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Service Blueprint, Fail Points, Ownership Map | Problem Evidence, Risk Notes, Customer Segments | Prioritized Assumption List, Test Plan, Results Report | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | Service designOperationsJourneyBlueprint | DiscoveryInterviewsValidation | ExperimentsValidationDiscoveryAssumptions | AssumptionsRiskExperimentsValidation |