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| Criterion |  Operations Barrier Analysis |  Architecture Architecture Decision Record |  Decision Making Argument Mapping |
|---|---|---|---|
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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | When statements, evidence, and counterarguments get mixed up, a debate quickly loses its structure. Argument Mapping breaks a thesis down into its reasoning and makes visible what it really rests on. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 2-4 h | 15-45 min | 1-3 h |
Participantsdifferent | 2-6 | 1-3 | 1-8 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | ADR File, Decision Log, Rationale | Argument Map, Evidence Gaps, Decision Rationale |
Tagsno overlap | Root causeSafetyIncident | ArchitectureRationaleDocumentationGovernance | SensemakingDecisionRationale |
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