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| Criterion |  Operations ABC Analysis |  UX Research Contextual Inquiry |  Operations Fault Tree Analysis |
|---|---|---|---|
Purposedifferent | 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 work processes are known only from accounts and the real context stays hidden, Contextual Inquiry makes behavior at the workplace visible. Observation and follow-up questions together show how people actually work, get interrupted, and improvise. | 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 | Low | Medium | High |
Timedifferent | 30-60 min | 1-3 Wochen | 2-6 h |
Participantsdifferent | 1-5 | 4-12 Beobachtungen | 3-8 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | ABC Classification, Focus Rules, Control List | Field Notes, Workflow Insights, Pain Points | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | PrioritizationOperationsPortfolio | UX researchObservationContext | RiskRoot causeSafety |
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