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| Criterion |  Architecture arc42 |  Operations After-Action Review |  Operations Root Cause Analysis |
|---|---|---|---|
Purposedifferent | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | 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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 1-2 Tage | 20-45 min | 1-4 h |
Participantsdifferent | 1-4 | 3-12 | 3-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Lessons learned, Action items, Event summary | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | ArchitectureDocumentationCommunication | LearningOperationsImprovement | Root causeProblem solvingQualityIncident |
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