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| Criterion |  Operations 5 Whys |  Systems Thinking VUCA Scan |  Operations Barrier Analysis |
|---|---|---|---|
Purposedifferent | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | The VUCA Scan helps read difficult situations more precisely. Instead of treating unclarity as generally complicated, the method separates fast change, missing knowledge, systemic entanglement, and ambiguous interpretation. | 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 | Low | Medium |
Timedifferent | 15-30 min | 30-90 min | 2-4 h |
Participantsdifferent | 2-6 | 1-10 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Root cause notes, Countermeasures | VUCA Map, Response Options, Signal and Learning Plan | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | Root causeIncidentLeanProblem solving | SensemakingUncertaintyComplexityStrategyForesight | Root causeSafetyIncident |
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