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| Criterion |  DevOps Blameless Postmortem |  Architecture SAAM (Software Architecture Analysis Method) |  Operations Fishbone Diagram |
|---|---|---|---|
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. | SAAM helps teams judge an architecture’s suitability for selected tasks and changes. It is particularly useful for examining modifiability and comparing architecture alternatives with clear reasoning. | 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. |
Complexitydifferent | Medium | High | Low |
Timedifferent | 30-90 min | Preparation, scenario analysis, and findings review; effort depends on scope | 30-60 min |
Participantsdifferent | 3-12 | Architecture experts and stakeholders for scenarios and weighting | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Domain functions mapped to components and connections, Quality attributes and evaluation criteria, Typical tasks and their effects on the architecture, Reasoned evaluation or comparison of alternatives | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ArchitectureChangeAnalysisComparisonQuality | Root causeQualityOperations |
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