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| Criterion |  DevOps Blameless Postmortem |  Knowledge Modeling Concept Mapping |  DevOps Incident Timeline Analysis |  Knowledge Modeling Feynman Technique |
|---|---|---|---|---|
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. | Concept Mapping arranges terms and relationships in a network that makes subject-matter connections tangible. It fits when a topic needs to be understood structurally rather than linearly. | For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 30-90 min | 1-2 h | 60-180 min | 20-60 min |
Participantsdifferent | 3-12 | 1-8 | 3-10 | 1 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Concept Map, Relationship Labels, Knowledge Gaps | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Plain-language Explanation, Knowledge Gaps, Study Notes |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | KnowledgeConceptsMappingSensemaking | IncidentTimelineSite Reliability Engineering | LearningKnowledgeUnderstanding |