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Selected:LASR (Lightweight Approach for Software Reviews)Incident Timeline AnalysisRoot Cause AnalysisCausal Factor Analysis
| Criterion |  Architecture LASR (Lightweight Approach for Software Reviews) |  DevOps Incident Timeline Analysis |  Operations Root Cause Analysis |  Operations Causal Factor Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. | 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 | 3–4 h for initial assessment; preparation and deeper analysis additional | 60-180 min | 1-4 h | 2-6 h |
Participantsdifferent | 1 or a small team; particularly suitable for 3–4 people | 3-10 | 3-8 | 3-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | 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 | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | ArchitectureQualityRiskAssessmentLean | IncidentTimelineSite Reliability Engineering | Root causeProblem solvingQualityIncident | CausalityIncidentRoot causeTimeline |