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| Criterion |  Architecture Views and Beyond |  Operations Barrier Analysis |  Architecture Architecture Decision Record |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | Views and Beyond organizes architecture into several views so no single diagram has to do everything at once. This makes it possible to choose the representation that fits the stakeholder's question. | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 1-3 Tage | 2-4 h | 15-45 min | 15-30 min |
Participantsdifferent | 1-4 | 2-6 | 1-3 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | Architecture Views, Cross-view Notes, Rationale | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | ADR File, Decision Log, Rationale | Root cause notes, Countermeasures |
Tagsno overlap | DocumentationStakeholdersArchitecture | Root causeSafetyIncident | ArchitectureRationaleDocumentationGovernance | Root causeIncidentLeanProblem solving |