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| Criterion |  DevOps Incident Command |  Architecture LASR (Lightweight Approach for Software Reviews) |  DevOps Blameless Postmortem |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | As needed | 3–4 h for initial assessment; preparation and deeper analysis additional | 30-90 min | 15-30 min |
Participantsdifferent | 4-15 | 1 or a small team; particularly suitable for 3–4 people | 3-12 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Incident Log, Action Tracker, Stakeholder Updates | 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 | Postmortem Doc, Action Items, Timeline | Root cause notes, Countermeasures |
Tagsno overlap | IncidentOperationsReliability | ArchitectureQualityRiskAssessmentLean | Site Reliability EngineeringIncidentLearningReliability | Root causeIncidentLeanProblem solving |