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Selected:Scatter DiagramCausal Factor AnalysisFailure Mode and Effects AnalysisRoot Cause Tree Analysis
| Criterion |  Operations Scatter Diagram |  Operations Causal Factor Analysis |  Operations Failure Mode and Effects Analysis |  Operations Root Cause Tree 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 an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | 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. |
Complexitydifferent | Low | High | High | Medium |
Timedifferent | 30-90 min | 2-6 h | 2-6 h | 1-3 h |
Participantsdifferent | 1-4 | 3-10 | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Scatter Plot, Korrelationsnotiz, Hypothesenliste | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | FMEA Table, Risk Priority, Mitigation Actions | Cause Tree, Evidence Notes, Countermeasures |
Tags1 shared | Root causeQualityVisualization | CausalityIncidentRoot causeTimeline | RiskQualityOperationsRoot cause | Root causeTreeIncidentQuality |