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| Criterion |  Systems Thinking Future Reality Tree |  Systems Thinking Systems Mapping |  Operations Barrier Analysis |  Operations Change Analysis |
|---|---|---|---|---|
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. | Systems Mapping arranges elements, relationships, and boundaries so a complex field becomes legible at a glance. The overview stabilizes the overall picture before detail work or steering begins. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | 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. |
Complexitydifferent | High | Medium | Medium | Medium |
Timedifferent | 2-4 h | 1-3 h | 2-4 h | 45-120 min |
Participantsdifferent | 3-8 | 3-12 | 2-6 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | System Map, Dependencies, Leverage Points | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | Systems thinkingMappingBoundariesChange | Root causeSafetyIncident | ChangeRoot causeTroubleshootingComparison |