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Selected:Scatter DiagramFailure Mode and Effects AnalysisRoot Cause Tree AnalysisRoot Cause Analysis
| Criterion |  Operations Scatter Diagram |  Operations Failure Mode and Effects Analysis |  Operations Root Cause Tree Analysis |  Operations Root Cause Analysis |
|---|---|---|---|---|
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. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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 | Low | High | Medium | Medium |
Timedifferent | 30-90 min | 2-6 h | 1-3 h | 1-4 h |
Participantsdifferent | 1-4 | 3-10 | 2-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Scatter Plot, Korrelationsnotiz, Hypothesenliste | FMEA Table, Risk Priority, Mitigation Actions | Cause Tree, Evidence Notes, Countermeasures | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tags2 shared | Root causeQualityVisualization | RiskQualityOperationsRoot cause | Root causeTreeIncidentQuality | Root causeProblem solvingQualityIncident |