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| Criterion |  Operations Visual Management |  UX Research Contextual Inquiry |  Operations Fault Tree Analysis |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | With high tempo and many parallel topics, the method makes status, deviations, and priorities visible at a glance. It reduces search effort and prevents what matters from getting lost in daily work. | 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. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | Low | Medium | High | Medium |
Timedifferent | Ongoing | 1-3 Wochen | 2-6 h | 2-4 h |
Participantsdifferent | 1-20 | 4-12 Beobachtungen | 3-8 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Visual Board, Status Indicators, Exception Cues | Field Notes, Workflow Insights, Pain Points | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | SignalsOperationsVisual management | UX researchObservationContext | RiskRoot causeSafety | Root causeSafetyIncident |