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| Criterion |  Operations Scatter Diagram |  Operations Failure Mode and Effects Analysis |  Growth A/B Testing |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | When the question is whether two measures are related, the method makes patterns in the data picture visible. It separates felt correlations from relationships that actually show up in the data. | 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. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | 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 | Low | High | High | High |
Timedifferent | 30-90 min | 2-6 h | 1-4 Wochen | 1-6 Wochen |
Participantsdifferent | 1-4 | 3-10 | 1-6 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | Scatter Plot, Korrelationsnotiz, Hypothesenliste | FMEA Table, Risk Priority, Mitigation Actions | Experiment results, Decision log, Learning summary | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Root causeQualityVisualization | RiskQualityOperationsRoot cause | ExperimentsGrowthAnalyticsValidation | QualityProblem solvingRoot cause |