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| Criterion |  Systems Thinking CATWOE Analysis |  DevOps Blameless Postmortem |  Operations Fishbone Diagram |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | CATWOE structures a problem from six viewpoints and prevents too narrow a view of the situation. Different experiences of the system become comparably discussable this way. | 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 has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 45-90 min | 30-90 min | 30-60 min | 1-4 h |
Participantsdifferent | 3-8 | 3-12 | 2-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints | Postmortem Doc, Action Items, Timeline | Fishbone Diagram, Cause Categories, Investigation Backlog | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | Systems thinkingFramingStakeholders | Site Reliability EngineeringIncidentLearningReliability | Root causeQualityOperations | Root causeProblem solvingQualityIncident |