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| Criterion |  Operations Theory of Constraints |  Operations Process Mapping |  Systems Thinking Current Reality Tree |  Operations Bottleneck Analysis |
|---|---|---|---|---|
Purposedifferent | For a system that does not get faster despite effort, the method directs attention to the bottleneck. It concentrates improvement on the point that actually limits throughput. | With a confusing workflow that has many handoffs, the method makes the actual process visible. It shows where work is passed on, delayed, or duplicated, so improvement targets the right spots. | 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. | 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. |
Complexitydifferent | High | Medium | High | Medium |
Timedifferent | 2-4 h Analyse, laufend | 1-3 h | 2-6 h | 1-3 h |
Participantsdifferent | 3-12 | 3-10 | 3-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Constraint Map, Improvement Plan, Flow Metrics | Process Map, Handoff List, Improvement Backlog | Current Reality Tree, Core Problems, Intervention Ideas | Bottleneck Map, Flow Metrics, Improvement Options, Follow-up Measures |
Tagsno overlap | OperationsConstraintsFlowImprovement | ProcessOperationsImprovement | Systems thinkingRoot causeConstraintsCausality | FlowMeasurementConstraints |