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| Criterion |  Systems Thinking Iceberg Model |  Systems Thinking Evaporating Cloud |  Operations Root Cause Tree Analysis |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | 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 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 | Medium | Medium | High |
Timedifferent | 30-60 min | 60-120 min | 1-3 h | 1-6 Wochen |
Participantsdifferent | 2-10 | 2-8 | 2-8 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Iceberg Worksheet, Pattern Notes, Intervention Ideas | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Cause Tree, Evidence Notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Systems thinkingRoot causePatterns | Theory of ConstraintsAssumptionsSystems thinking | Root causeTreeIncidentQuality | QualityProblem solvingRoot cause |