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| Criterion |  Architecture arc42 |  Operations Change Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|
Purposedifferent | 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 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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Low | Medium | High |
Timedifferent | 1-2 Tage | 45-120 min | 2-6 h |
Participantsdifferent | 1-4 | 2-6 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Change Matrix, Cause Hypotheses, Validation Questions, Action List | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | ArchitectureDocumentationCommunication | ChangeRoot causeTroubleshootingComparison | RiskQualityOperationsRoot cause |
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