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| Criterion |  DevOps Blameless Postmortem |  Knowledge Modeling Feynman Technique |  Operations ALPEN Method |  DevOps Game Day |
|---|---|---|---|---|
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. | The Feynman Technique checks understanding by explaining a topic so that it stays easy for others to understand. It makes knowledge gaps visible before they become costly in everyday work. | 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. | In preparing for rare incidents, the method tests response capability under controlled conditions. It shows where assumptions about stability, roles, and recovery are too optimistic. |
Complexitydifferent | Medium | Low | Low | High |
Timedifferent | 30-90 min | 20-60 min | 10-20 min daily | Halber Tag |
Participantsdifferent | 3-12 | 1 | 1 | 5-20 |
Formatdifferent | Workshop + async | Async | Async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Plain-language Explanation, Knowledge Gaps, Study Notes | Daily Plan, Time Estimates, Review Notes | Simulation Notes, Gaps List, Updated Runbooks |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | LearningKnowledgeUnderstanding | PlanningTime managementProductivityOperations | ResilienceOperationsIncident |