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| Criterion |  Systems Thinking Future Reality Tree |  Operations A3 Problem Solving |  Operations Family Tree Analysis |  Systems Thinking Iceberg Model |
|---|---|---|---|---|
Purposedifferent | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | 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. | 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. |
Complexitydifferent | High | Medium | Medium | Low |
Timedifferent | 2-4 h | 45-90 min | 2-4 h | 30-60 min |
Participantsdifferent | 3-8 | 2-5 | 2-6 | 2-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | A3 Report, Action Plan, Root Cause Analysis | Family Tree Diagram, Pattern Notes, Systemic Measures | Iceberg Worksheet, Pattern Notes, Intervention Ideas |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | LeanProblem solvingCoachingOperations | Root causePatternsIncidentSystemic | Systems thinkingRoot causePatterns |