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| Criterion |  DevOps Blameless Postmortem |  Architecture C4 Model |  Operations Scatter Diagram |  Operations Root Cause 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. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | When the question is whether two measures are related, the method makes patterns in the data picture visible. It separates felt correlations from relationships that actually show up in the data. | 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 | Low | Low | Medium |
Timedifferent | 30-90 min | 1-4 h | 30-90 min | 1-4 h |
Participantsdifferent | 3-12 | 1-5 | 1-4 | 3-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Context Diagram, Container Diagram, Component Diagram | Scatter Plot, Korrelationsnotiz, Hypothesenliste | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ArchitectureCommunicationVisualization | Root causeQualityVisualization | Root causeProblem solvingQualityIncident |