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| Criterion |  Operations Fault Tree Analysis |  Knowledge Modeling Peer Instruction |  DevOps Blameless Postmortem |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | Peer Instruction uses group thinking to clarify difficult terms or concepts faster. The method combines individual reflection with social correction and shared precision. | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | High | Medium | Medium | Low |
Timedifferent | 2-6 h | 10-20 min je Frage | 30-90 min | 15-30 min |
Participantsdifferent | 3-8 | 6-50 | 3-12 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Concept Questions, Vote Results, Learning Notes | Postmortem Doc, Action Items, Timeline | Root cause notes, Countermeasures |
Tagsno overlap | RiskRoot causeSafety | LearningDialogueFacilitation | Site Reliability EngineeringIncidentLearningReliability | Root causeIncidentLeanProblem solving |