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| Criterion |  DevOps Blameless Postmortem |  Knowledge Modeling IBIS |  DevOps Incident Timeline Analysis |  Decision Making Argument Mapping |
|---|---|---|---|---|
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. | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | 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. | When statements, evidence, and counterarguments get mixed up, a debate quickly loses its structure. Argument Mapping breaks a thesis down into its reasoning and makes visible what it really rests on. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-90 min | 1-3 h | 60-180 min | 1-3 h |
Participantsdifferent | 3-12 | 2-8 | 3-10 | 1-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Issue Map, Positions, Argument Notes | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Argument Map, Evidence Gaps, Decision Rationale |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | RationaleKnowledgeDecision | IncidentTimelineSite Reliability Engineering | SensemakingDecisionRationale |