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| Criterion |  Operations Family Tree Analysis |  Systems Thinking Iceberg Model |  Operations A3 Problem Solving |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | For a series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. | 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 complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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 | Medium | Low | Medium | Medium |
Timedifferent | 2-4 h | 30-60 min | 45-90 min | 1-4 h |
Participantsdifferent | 2-6 | 2-10 | 2-5 | 3-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Family Tree Diagram, Pattern Notes, Systemic Measures | Iceberg Worksheet, Pattern Notes, Intervention Ideas | A3 Report, Action Plan, Root Cause Analysis | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | Root causePatternsIncidentSystemic | Systems thinkingRoot causePatterns | LeanProblem solvingCoachingOperations | Root causeProblem solvingQualityIncident |