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| Criterion |  Architecture arc42 |  Operations ALPEN Method |  DevOps Blameless Postmortem |
|---|---|---|---|
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 an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 1-2 Tage | 10-20 min daily | 30-90 min |
Participantsdifferent | 1-4 | 1 | 3-12 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Daily Plan, Time Estimates, Review Notes | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | ArchitectureDocumentationCommunication | PlanningTime managementProductivityOperations | Site Reliability EngineeringIncidentLearningReliability |
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