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| Criterion |  Operations A3 Problem Solving |  Systems Thinking VUCA Scan |  Operations 5 Whys |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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 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. | 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 | Medium | Low | Low | Medium |
Timedifferent | 45-90 min | 30-90 min | 15-30 min | 2-4 h |
Participantsdifferent | 2-5 | 1-10 | 2-6 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | VUCA Map, Response Options, Signal and Learning Plan | Root cause notes, Countermeasures | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | LeanProblem solvingCoachingOperations | SensemakingUncertaintyComplexityStrategyForesight | Root causeIncidentLeanProblem solving | Root causeSafetyIncident |