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| Criterion |  DevOps Blameless Postmortem |  Architecture arc42 |  Operations ALPEN Method |
|---|---|---|---|
Purposedifferent | 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. | 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. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | 30-90 min | 1-2 Tage | 10-20 min daily |
Participantsdifferent | 3-12 | 1-4 | 1 |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Architecture Document, Context View, Runtime View, Deployment View | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ArchitectureDocumentationCommunication | PlanningTime managementProductivityOperations |
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