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| Criterion |  UX Research User Interviews |  UX Design Service Blueprinting |  Product Discovery Test Card |  UX Design Customer Journey Canvas |
|---|---|---|---|---|
Purposedifferent | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | 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 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 | Low | High | Low | Medium |
Timedifferent | 30–60 min per interview | 0.5-2 Tage | 20-35 min | 1-3 h |
Participantsdifferent | 1 participant per interview | 6-12 | 1-5 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Interview Notes, Themes, Insight Summary | Service Blueprint, Fail Points, Ownership Map | Test Card with a pre-set threshold | Customer Journey Canvas, Pain Points, Experience Opportunities |
Tagsno overlap | QualitativeResearchCustomerDiscovery | Service designOperationsJourneyBlueprint | ExperimentsValidationDiscoveryHypothesis | JourneyCustomerService designCanvas |