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| Criterion |  Growth Funnel Analysis |  Engineering Hypothesis-Driven Troubleshooting |  Operations 8D Problem Solving |  Operations Change 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. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | 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. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 1-3 h | 30-240 min | 1-6 Wochen | 45-120 min |
Participantsdifferent | 1-5 | 1-6 | 4-10 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Funnel report, Drop-off analysis, Optimization hypotheses | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | AnalyticsConversionGrowth | TroubleshootingProblem solvingDiagnosis | QualityProblem solvingRoot cause | ChangeRoot causeTroubleshootingComparison |