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| Criterion |  DevOps Incident Timeline Analysis |  Architecture Architecture Decision Record |  DevOps Incident Command |  Architecture arc42 |
|---|---|---|---|---|
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. | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 60-180 min | 15-45 min | As needed | 1-2 Tage |
Participantsdifferent | 3-10 | 1-3 | 4-15 | 1-4 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | ADR File, Decision Log, Rationale | Incident Log, Action Tracker, Stakeholder Updates | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | IncidentTimelineSite Reliability Engineering | ArchitectureRationaleDocumentationGovernance | IncidentOperationsReliability | ArchitectureDocumentationCommunication |