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| Criterion |  Operations Getting Things Done |  DevOps Blameless Postmortem |  Architecture arc42 |  Operations ALPEN Method |
|---|---|---|---|---|
Purposedifferent | With many open commitments and ideas in daily life, a reliable external storage system emerges. The method relieves the mind so priority and context don't have to compete in memory. | 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 | Medium | Low | Low |
Timedifferent | 1-2 h Setup, laufend | 30-90 min | 1-2 Tage | 10-20 min daily |
Participantsdifferent | 1 | 3-12 | 1-4 | 1 |
Formatdifferent | Async | Workshop + async | Workshop + async | Async |
Outputdifferent | Action Lists, Project List, Review Routine | Postmortem Doc, Action Items, Timeline | Architecture Document, Context View, Runtime View, Deployment View | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | ProductivityPlanningTasksExecution | Site Reliability EngineeringIncidentLearningReliability | ArchitectureDocumentationCommunication | PlanningTime managementProductivityOperations |