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| Criterion |  DevOps Incident Timeline Analysis |  Decision Making Assumption Surfacing |  DevOps Blameless Postmortem |  Product Strategy DIBB |
|---|---|---|---|---|
Purposedifferent | 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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 60-180 min | 45-90 min | 30-90 min | 1-2 h |
Participantsdifferent | 3-10 | 2-8 | 3-12 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Assumption List, Critical Assumptions, Learning Plan | Postmortem Doc, Action Items, Timeline | DIBB document, Belief list, Bet list, Learning report |
Tagsno overlap | IncidentTimelineSite Reliability Engineering | AssumptionsRiskDecisionDiscovery | Site Reliability EngineeringIncidentLearningReliability | StrategyDecisionAssumptionsHypothesis |