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| Criterion |  Operations Change Analysis |  Delivery RAID Log |  Architecture Architecture Decision Record |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | Helps clarify scope, sequence, and delivery flow in concrete terms. It makes work, boundaries, and order steerable. The result is captured as a RAID Log and a source for status reporting. | 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. | 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 | Low | Low |
Timedifferent | 45-120 min | 30 min Setup, dann laufend | 15-45 min | 1-2 Tage |
Participantsdifferent | 2-6 | 1-3 maintaining, briefing for everyone | 1-3 | 1-4 |
Formatdifferent | Workshop + async | Async | Async | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | RAID Log, Status Report Source | ADR File, Decision Log, Rationale | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | RiskTrackingStakeholdersGovernance | ArchitectureRationaleDocumentationGovernance | ArchitectureDocumentationCommunication |