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| Criterion |  Architecture arc42 |  Operations ALPEN Method |  Operations After-Action Review |  Architecture Architecture Decision Record |
|---|---|---|---|---|
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. | 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. | 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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 1-2 Tage | 10-20 min daily | 20-45 min | 15-45 min |
Participantsdifferent | 1-4 | 1 | 3-12 | 1-3 |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Daily Plan, Time Estimates, Review Notes | Lessons learned, Action items, Event summary | ADR File, Decision Log, Rationale |
Tagsno overlap | ArchitectureDocumentationCommunication | PlanningTime managementProductivityOperations | LearningOperationsImprovement | ArchitectureRationaleDocumentationGovernance |