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| Criterion |  Operations A3 Problem Solving |  Growth Funnel Analysis |  Operations Root Cause Analysis |  Operations Failure Mode and Effects 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. | 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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Medium | Medium | Medium | High |
Timedifferent | 45-90 min | 1-3 h | 1-4 h | 2-6 h |
Participantsdifferent | 2-5 | 1-5 | 3-8 | 3-10 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Funnel report, Drop-off analysis, Optimization hypotheses | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | LeanProblem solvingCoachingOperations | AnalyticsConversionGrowth | Root causeProblem solvingQualityIncident | RiskQualityOperationsRoot cause |