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| Criterion |  Operations ALPEN Method |  Architecture C4 Model |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|
Purposedifferent | 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. | 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. | 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 | 10-20 min daily | 1-4 h | 2-6 h |
Participantsdifferent | 1 | 1-5 | 3-10 |
Formatdifferent | Async | Workshop + async | Workshop |
Outputdifferent | Daily Plan, Time Estimates, Review Notes | Context Diagram, Container Diagram, Component Diagram | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | PlanningTime managementProductivityOperations | ArchitectureCommunicationVisualization | RiskQualityOperationsRoot cause |
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