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| Criterion |  Operations Change Analysis |  Operations Root Cause Tree Analysis |  Operations Scatter Diagram |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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. | 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 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 single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 45-120 min | 1-3 h | 30-90 min | 15-30 min |
Participantsdifferent | 2-6 | 2-8 | 1-4 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Cause Tree, Evidence Notes, Countermeasures | Scatter Plot, Korrelationsnotiz, Hypothesenliste | Root cause notes, Countermeasures |
Tags1 shared | ChangeRoot causeTroubleshootingComparison | Root causeTreeIncidentQuality | Root causeQualityVisualization | Root causeIncidentLeanProblem solving |