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| Criterion |  Systems Thinking Soft Systems Methodology |  DevOps Incident Timeline Analysis |  DevOps Game Day |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | Soft Systems Methodology helps explore unclear or politically charged problems systematically. Instead of forcing a quick answer, the method builds a shared understanding of perspectives and room for action. | 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. | In preparing for rare incidents, the method tests response capability under controlled conditions. It shows where assumptions about stability, roles, and recovery are too optimistic. | 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. |
Complexitydifferent | High | Medium | High | Medium |
Timedifferent | 0.5-3 Tage | 60-180 min | Halber Tag | 30-90 min |
Participantsdifferent | 5-15 | 3-10 | 5-20 | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Rich Picture, Root Definitions, Conceptual Models, Change Agenda | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Simulation Notes, Gaps List, Updated Runbooks | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | Soft systemsComplexitySensemakingSystems thinking | IncidentTimelineSite Reliability Engineering | ResilienceOperationsIncident | Site Reliability EngineeringIncidentLearningReliability |