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| Criterion |  UX Research Personas |  Operations Failure Mode and Effects Analysis |  Operations Fault Tree Analysis |
|---|---|---|---|
Purposedifferent | 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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. |
Complexitydifferent | Medium | High | High |
Timedifferent | 1-3 Tage | 2-6 h | 2-6 h |
Participantsdifferent | Internes Team | 3-10 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Persona Profiles, Needs Summary, Scenario Notes | FMEA Table, Risk Priority, Mitigation Actions | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | ResearchCustomerSynthesis | RiskQualityOperationsRoot cause | RiskRoot causeSafety |
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