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| Criterion |  Operations A3 Problem Solving |  Operations Kaizen Event |  Growth Funnel Analysis |  Operations 5 Whys |
|---|---|---|---|---|
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. | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | When many visitors or users drop off along the way, the reason behind the number often stays hidden. Funnel Analysis exposes these transitions and makes visible exactly where the path collapses. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 45-90 min | 0.5-5 Tage | 1-3 h | 15-30 min |
Participantsdifferent | 2-5 | 4-10 | 1-5 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | Funnel report, Drop-off analysis, Optimization hypotheses | Root cause notes, Countermeasures |
Tagsno overlap | LeanProblem solvingCoachingOperations | LeanContinuous improvementOperations | AnalyticsConversionGrowth | Root causeIncidentLeanProblem solving |