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| Criterion |  Operations Process Mapping |  Operations Theory of Constraints |  Systems Thinking Current Reality Tree |  Operations Causal Factor Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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 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 | Medium | High | High | High |
Timedifferent | 1-3 h | 2-4 h Analyse, laufend | 2-6 h | 2-6 h |
Participantsdifferent | 3-10 | 3-12 | 3-8 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Process Map, Handoff List, Improvement Backlog | Constraint Map, Improvement Plan, Flow Metrics | Current Reality Tree, Core Problems, Intervention Ideas | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | ProcessOperationsImprovement | OperationsConstraintsFlowImprovement | Systems thinkingRoot causeConstraintsCausality | CausalityIncidentRoot causeTimeline |