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| Criterion |  Systems Thinking Future Reality Tree |  Systems Thinking Iceberg Model |  Operations Causal Factor 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. | 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 an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. |
Complexitydifferent | High | Low | High |
Timedifferent | 2-4 h | 30-60 min | 2-6 h |
Participantsdifferent | 3-8 | 2-10 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Iceberg Worksheet, Pattern Notes, Intervention Ideas | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | Systems thinkingRoot causePatterns | CausalityIncidentRoot causeTimeline |
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