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| Criterion |  Engineering Failure Scenario Analysis |  Decision Making DACI |  Architecture Architecture Decision Record |
|---|---|---|---|
Purposedifferent | In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most damage. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | 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. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 1-3 h | 30-60 min | 15-45 min |
Participantsdifferent | 3-8 | 2-10 | 1-3 |
Formatdifferent | Workshop | Workshop + async | Async |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | DACI Matrix, Decision Owner, Decision Log | ADR File, Decision Log, Rationale |
Tagsno overlap | FailureResilienceRisk | DecisionRolesGovernanceAlignment | ArchitectureRationaleDocumentationGovernance |
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