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| Criterion |  Growth Funnel Analysis |  Operations 8D Problem Solving |  Product Discovery Assumption Mapping |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | 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 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. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 1-3 h | 1-6 Wochen | 45-60 min | 1-4 h |
Participantsdifferent | 1-5 | 4-10 | 2-8 | 3-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Funnel report, Drop-off analysis, Optimization hypotheses | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Assumption map, Test backlog, Risk ranking | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | AnalyticsConversionGrowth | QualityProblem solvingRoot cause | AssumptionsRiskExperimentsValidation | Root causeProblem solvingQualityIncident |