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| Criterion |  Operations Bottleneck Analysis |  Knowledge Modeling Teach-back |  Operations 5 Whys |  Operations Barrier 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. | Teach-back checks whether an explanation actually got through to the other person. The method makes misunderstandings visible early and strengthens shared understanding in advisory and learning situations. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | 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. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 1-3 h | 5-20 min | 15-30 min | 2-4 h |
Participantsdifferent | 3-8 | 2-8 | 2-6 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Bottleneck Map, Flow Metrics, Improvement Options, Follow-up Measures | Understanding Check, Clarification Notes, Learning Gaps | Root cause notes, Countermeasures | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | FlowMeasurementConstraints | LearningUnderstandingCommunication | Root causeIncidentLeanProblem solving | Root causeSafetyIncident |