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| Criterion |  Operations After-Action Review |  Architecture C4 Model |  Knowledge Modeling Feynman Technique |  Operations Learning Review |
|---|---|---|---|---|
Purposedifferent | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | 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 Feynman Technique checks understanding by explaining a topic so that it stays easy for others to understand. It makes knowledge gaps visible before they become costly in everyday work. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 20-45 min | 1-4 h | 20-60 min | 1-3 h |
Participantsdifferent | 3-12 | 1-5 | 1 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | Lessons learned, Action items, Event summary | Context Diagram, Container Diagram, Component Diagram | Plain-language Explanation, Knowledge Gaps, Study Notes | Learning Review Notes, System Factors, Improvement Actions |
Tagsno overlap | LearningOperationsImprovement | ArchitectureCommunicationVisualization | LearningKnowledgeUnderstanding | LearningRetrospectiveIncidentOperations |