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| Criterion |  Architecture C4 Model |  Operations Accountability Ladder |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|
Purposedifferent | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | With defensive reactions to problems, the method shifts the view from justification to ownership. It makes visible which reaction stage a person or team is currently stuck on. | 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 | Low | High |
Timedifferent | 1-4 h | 20-45 min | 2-6 h |
Participantsdifferent | 1-5 | 1-8 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Ownership Reflection, Action Commitment, Coaching Notes | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | ArchitectureCommunicationVisualization | ResponsibilityLeadershipTeam | RiskQualityOperationsRoot cause |
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