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Selected:Incident Timeline AnalysisLASR (Lightweight Approach for Software Reviews)Blameless PostmortemCausal Factor Analysis
| Criterion |  DevOps Incident Timeline Analysis |  Architecture LASR (Lightweight Approach for Software Reviews) |  DevOps Blameless Postmortem |  Operations Causal Factor Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | 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 an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. |
Complexitydifferent | Medium | Medium | Medium | High |
Timedifferent | 60-180 min | 3–4 h for initial assessment; preparation and deeper analysis additional | 30-90 min | 2-6 h |
Participantsdifferent | 3-10 | 1 or a small team; particularly suitable for 3–4 people | 3-12 | 3-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | 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 | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | IncidentTimelineSite Reliability Engineering | ArchitectureQualityRiskAssessmentLean | Site Reliability EngineeringIncidentLearningReliability | CausalityIncidentRoot causeTimeline |