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| Criterion |  UX Design Service Blueprinting |  Product Discovery Problem Interview |  Decision Making Assumption Surfacing |  UX Design Customer Journey Canvas |
|---|---|---|---|---|
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. | 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. | When a journey needs to be understood across several phases, it arranges experience, touchpoints, and opportunities into one picture. It makes gaps and friction along the user path clear. |
Complexitydifferent | High | Medium | Low | Medium |
Timedifferent | 0.5-2 Tage | 30-60 min je Interview | 45-90 min | 1-3 h |
Participantsdifferent | 6-12 | 5-12 Interviews | 2-8 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Service Blueprint, Fail Points, Ownership Map | Problem Evidence, Risk Notes, Customer Segments | Assumption List, Critical Assumptions, Learning Plan | Customer Journey Canvas, Pain Points, Experience Opportunities |
Tagsno overlap | Service designOperationsJourneyBlueprint | DiscoveryInterviewsValidation | AssumptionsRiskDecisionDiscovery | JourneyCustomerService designCanvas |