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| Criterion |  Operations Theory of Constraints |  Operations Causal Factor Analysis |  Operations Barrier Analysis |  Operations After-Action Review |
|---|---|---|---|---|
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. | 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. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. |
Complexitydifferent | High | High | Medium | Low |
Timedifferent | 2-4 h Analyse, laufend | 2-6 h | 2-4 h | 20-45 min |
Participantsdifferent | 3-12 | 3-10 | 2-6 | 3-12 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Constraint Map, Improvement Plan, Flow Metrics | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Lessons learned, Action items, Event summary |
Tagsno overlap | OperationsConstraintsFlowImprovement | CausalityIncidentRoot causeTimeline | Root causeSafetyIncident | LearningOperationsImprovement |