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| Criterion |  DevOps Blameless Postmortem |  Operations Root Cause Analysis |  Decision Making Force Field Analysis |
|---|---|---|---|
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 problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | In change initiatives, supporting and restraining forces sit at the table at the same time. Force Field Analysis makes these tensions explicit and shows where change can be pushed forward by strengthening or relieving. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 30-90 min | 1-4 h | 45-90 min |
Participantsdifferent | 3-12 | 3-8 | 3-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Force Field Map, Change Levers, Risk Notes |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | Root causeProblem solvingQualityIncident | ChangeDecisionStrategy |
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