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| Criterion |  Operations Failure Mode and Effects Analysis |  Operations Fault Tree Analysis |  Growth Funnel Analysis |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | 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. |
Complexitydifferent | High | High | Medium | High |
Timedifferent | 2-6 h | 2-6 h | 1-3 h | 1-6 Wochen |
Participantsdifferent | 3-10 | 3-8 | 1-5 | 4-10 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | FMEA Table, Risk Priority, Mitigation Actions | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Funnel report, Drop-off analysis, Optimization hypotheses | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | RiskQualityOperationsRoot cause | RiskRoot causeSafety | AnalyticsConversionGrowth | QualityProblem solvingRoot cause |