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| Criterion |  UX Research User Interviews |  Operations MORT Analysis |  UX Research Personas |
|---|---|---|---|
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. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | When target groups stay too vague and teams talk about the same people differently, personas create a shared, solid picture of usage. Condensed profiles make needs, contexts, and differences tangible enough for decisions. |
Complexitydifferent | Low | High | Medium |
Timedifferent | 30–60 min per interview | Mehrere Tage bis Wochen | 1-3 Tage |
Participantsdifferent | 1 participant per interview | 2-6 | Internes Team |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Persona Profiles, Needs Summary, Scenario Notes |
Tagsno overlap | QualitativeResearchCustomerDiscovery | Root causeSafetySystemicIncident | ResearchCustomerSynthesis |
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