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| Criterion |  Operations Visual Management |  Operations 5 Whys |  Operations Theory of Constraints |  Operations 8D Problem Solving |
|---|---|---|---|---|
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. | 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 system that does not get faster despite effort, the method directs attention to the bottleneck. It concentrates improvement on the point that actually limits throughput. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Low | Low | High | High |
Timedifferent | Ongoing | 15-30 min | 2-4 h Analyse, laufend | 1-6 Wochen |
Participantsdifferent | 1-20 | 2-6 | 3-12 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Visual Board, Status Indicators, Exception Cues | Root cause notes, Countermeasures | Constraint Map, Improvement Plan, Flow Metrics | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | SignalsOperationsVisual management | Root causeIncidentLeanProblem solving | OperationsConstraintsFlowImprovement | QualityProblem solvingRoot cause |