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| Criterion |  UX Research User Interviews |  Decision Making Delphi Method |  UX Research Customer Journey Mapping |  Product Discovery Concierge MVP |
|---|---|---|---|---|
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 knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | When a user journey falls apart across many touchpoints, customer journey mapping makes the experience visible as a coherent arc. Phases, emotions, and breaks become legible enough to prioritize critical moments deliberately. | When an idea can first fail or grow through genuine hands-on support, it relies on manual work instead of automation. It shows whether user value holds up even under manual execution. |
Complexitydifferent | Low | High | Medium | Medium |
Timedifferent | 30–60 min per interview | 1-4 Wochen | 2-4 h | 1-4 Wochen |
Participantsdifferent | 1 participant per interview | 6-30 Experten | 4-10 | 3-10 Kunden |
Formatdifferent | Workshop + async | Async | Workshop | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Expert Forecast, Consensus Range, Assumption Notes | Journey Map, Pain-point List, Opportunity Backlog | Concierge Learnings, Service Blueprint, MVP Risks |
Tagsno overlap | QualitativeResearchCustomerDiscovery | ForecastingExpertsDecisionStrategy | JourneyServiceService design | MVPValidationServiceDiscovery |