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| Criterion |  DevOps Blameless Postmortem |  Facilitation Six Thinking Hats |  Facilitation Decision Jam |  Operations 5 Whys |
|---|---|---|---|---|
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. | When a topic gets stuck too quickly in the same thinking mode, Six Thinking Hats deliberately separates the perspectives. This means facts, risks, creativity, and emotional signals get worked through one after another instead of mixed together. | When a decision is stuck, Decision Jam loosens the knot through structured separation of problem, idea, and selection. The format creates movement without jumping prematurely at the first seemingly elegant answer. | 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 | Medium | Medium | Low | Low |
Timedifferent | 30-90 min | 45-90 min | 60-90 min | 15-30 min |
Participantsdifferent | 3-12 | 4-12 | 4-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Perspective Notes, Decision Inputs, Action Items | Problem Cluster, Prioritized Challenge, Experiment | Root cause notes, Countermeasures |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | FacilitationOptionsDecision | FacilitationDecisionProblem solvingWorkshop | Root causeIncidentLeanProblem solving |