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| Criterion |  Operations Family Tree Analysis |  Architecture arc42 |  Operations Barrier Analysis |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | For a series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. | 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. | 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. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 2-4 h | 1-2 Tage | 2-4 h | 15-45 min |
Participantsdifferent | 2-6 | 1-4 | 2-6 | 1-3 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Family Tree Diagram, Pattern Notes, Systemic Measures | Architecture Document, Context View, Runtime View, Deployment View | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | ADR File, Decision Log, Rationale |
Tagsno overlap | Root causePatternsIncidentSystemic | ArchitectureDocumentationCommunication | Root causeSafetyIncident | ArchitectureRationaleDocumentationGovernance |