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| Criterion |  Operations Barrier Analysis |  Knowledge Modeling Event Modeling |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | 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. | Event Modeling connects business workflows with commands, events, and views into one coherent mental model. It helps design behavior, UI, and technical slices from the same underlying logic. | 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. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 2-4 h | 2-6 h | 15-30 min |
Participantsdifferent | 2-6 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Event Model, UI Flow, Commands, Read Models | Root cause notes, Countermeasures |
Tagsno overlap | Root causeSafetyIncident | EventsBlueprintDomain-Driven DesignBehavior | Root causeIncidentLeanProblem solving |
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