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| Criterion |  Operations Scatter Diagram |  Systems Thinking Iceberg Model |  Operations Root Cause Tree Analysis |  Operations 5 Whys |
|---|---|---|---|---|
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. | The Iceberg Model separates visible events from patterns, structures, and mental models. This turns a single observation into a deeper understanding of why a problem keeps recurring. | 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. | 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 | Low | Low | Medium | Low |
Timedifferent | 30-90 min | 30-60 min | 1-3 h | 15-30 min |
Participantsdifferent | 1-4 | 2-10 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Scatter Plot, Korrelationsnotiz, Hypothesenliste | Iceberg Worksheet, Pattern Notes, Intervention Ideas | Cause Tree, Evidence Notes, Countermeasures | Root cause notes, Countermeasures |
Tags1 shared | Root causeQualityVisualization | Systems thinkingRoot causePatterns | Root causeTreeIncidentQuality | Root causeIncidentLeanProblem solving |