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| Criterion |  Systems Thinking Future Reality Tree |  Operations MORT Analysis |  Operations Kepner-Tregoe |
|---|---|---|---|
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 safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitysame | High | High | High |
Timedifferent | 2-4 h | Mehrere Tage bis Wochen | 2-8 h |
Participantsdifferent | 3-8 | 2-6 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | Root causeSafetySystemicIncident | Problem solvingRoot causeDecisionOperations |
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