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Selected:Causal Factor AnalysisA3 Problem SolvingLASR (Lightweight Approach for Software Reviews)Root Cause Analysis
| Criterion |  Operations Causal Factor Analysis |  Operations A3 Problem Solving |  Architecture LASR (Lightweight Approach for Software Reviews) |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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 keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | High | Medium | Medium | Medium |
Timedifferent | 2-6 h | 45-90 min | 3–4 h for initial assessment; preparation and deeper analysis additional | 1-4 h |
Participantsdifferent | 3-10 | 2-5 | 1 or a small team; particularly suitable for 3–4 people | 3-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | A3 Report, Action Plan, Root Cause Analysis | 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 | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | CausalityIncidentRoot causeTimeline | LeanProblem solvingCoachingOperations | ArchitectureQualityRiskAssessmentLean | Root causeProblem solvingQualityIncident |