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| Criterion |  Architecture C4 Model |  Operations Fishbone Diagram |  Operations ALPEN Method |
|---|---|---|---|
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. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. |
Complexitysame | Low | Low | Low |
Timedifferent | 1-4 h | 30-60 min | 10-20 min daily |
Participantsdifferent | 1-5 | 2-8 | 1 |
Formatdifferent | Workshop + async | Workshop | Async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Fishbone Diagram, Cause Categories, Investigation Backlog | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | ArchitectureCommunicationVisualization | Root causeQualityOperations | PlanningTime managementProductivityOperations |
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