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| Criterion |  DevOps Incident Timeline Analysis |  Architecture Architecture Decision Record |  Operations Barrier Analysis |
|---|---|---|---|
Purposedifferent | For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. | 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. | 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 | Medium |
Timedifferent | 60-180 min | 15-45 min | 2-4 h |
Participantsdifferent | 3-10 | 1-3 | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | ADR File, Decision Log, Rationale | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | IncidentTimelineSite Reliability Engineering | ArchitectureRationaleDocumentationGovernance | Root causeSafetyIncident |
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