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| Criterion |  Operations Bottleneck Analysis |  Systems Thinking Current Reality Tree |  Systems Thinking Future Reality Tree |  Operations Change Analysis |
|---|---|---|---|---|
Purposedifferent | For a flow that backs up at one point, the method looks for the capacity limit with the greatest leverage. It explains why extra effort elsewhere barely improves throughput. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | 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 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 | Medium | High | High | Medium |
Timedifferent | 1-3 h | 2-6 h | 2-4 h | 45-120 min |
Participantsdifferent | 3-8 | 3-8 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Bottleneck Map, Flow Metrics, Improvement Options, Follow-up Measures | Current Reality Tree, Core Problems, Intervention Ideas | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | FlowMeasurementConstraints | Systems thinkingRoot causeConstraintsCausality | Theory of ConstraintsSystems thinkingChange | ChangeRoot causeTroubleshootingComparison |