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| Criterion |  Architecture C4 Model |  Operations Eat the Frog |  Operations ALPEN Method |  Operations Ivy Lee 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. | The method protects energy and attention for the task that creates the largest progress and is often postponed. | 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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 1-4 h | 15-90 min daily | 10-20 min daily | 5-10 min daily |
Participantsdifferent | 1-5 | 1 | 1 | 1 |
Formatdifferent | Workshop + async | Async | Async | Async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Priority Task, Completion Note, Daily Focus | Daily Plan, Time Estimates, Review Notes | Daily Priority List, Completion Notes |
Tagsno overlap | ArchitectureCommunicationVisualization | PrioritizationProductivityFocusExecution | PlanningTime managementProductivityOperations | PrioritizationProductivityExecution |