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Selected:Blameless PostmortemLASR (Lightweight Approach for Software Reviews)Fishbone DiagramIncident Command
| Criterion |  DevOps Blameless Postmortem |  Architecture LASR (Lightweight Approach for Software Reviews) |  Operations Fishbone Diagram |  DevOps Incident Command |
|---|---|---|---|---|
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. | LASR helps development teams identify where their software falls short of important quality goals and which improvements to consider. A small group with existing system knowledge can make an initial assessment and investigate open questions in more detail. | 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. | During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 30-90 min | 3–4 h for initial assessment; preparation and deeper analysis additional | 30-60 min | As needed |
Participantsdifferent | 3-12 | 1 or a small team; particularly suitable for 3–4 people | 2-8 | 4-15 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Lean Mission Statement describing the software’s purpose, Prioritized quality goals and evaluation criteria, Risks and estimated gaps against quality goals, More closely examined findings and open checks | Fishbone Diagram, Cause Categories, Investigation Backlog | Incident Log, Action Tracker, Stakeholder Updates |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ArchitectureQualityRiskAssessmentLean | Root causeQualityOperations | IncidentOperationsReliability |