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| Criterion |  UX Research User Interviews |  Operations ABC Analysis |  UX Design Service Blueprinting |  Product Discovery Kano Model |
|---|---|---|---|---|
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. | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. | 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 features need to be distinguished by their effect on satisfaction, it makes expectations and surprises comparable. It separates basic needs, performance contribution, and delight. |
Complexitydifferent | Low | Low | High | Medium |
Timedifferent | 30–60 min per interview | 30-60 min | 0.5-2 Tage | 1-2 Tage |
Participantsdifferent | 1 participant per interview | 1-5 | 6-12 | 10-50 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | ABC Classification, Focus Rules, Control List | Service Blueprint, Fail Points, Ownership Map | Kano Matrix, Feature Classes, Priority Themes |
Tagsno overlap | QualitativeResearchCustomerDiscovery | PrioritizationOperationsPortfolio | Service designOperationsJourneyBlueprint | SatisfactionPrioritizationCustomer |