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Selected:LASR (Lightweight Approach for Software Reviews)Kepner-TregoeRoot Cause AnalysisA3 Problem Solving
| Criterion |  Architecture LASR (Lightweight Approach for Software Reviews) |  Operations Kepner-Tregoe |  Operations Root Cause Analysis |  Operations A3 Problem Solving |
|---|---|---|---|---|
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 a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | 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 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. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 3–4 h for initial assessment; preparation and deeper analysis additional | 2-8 h | 1-4 h | 45-90 min |
Participantsdifferent | 1 or a small team; particularly suitable for 3–4 people | 2-8 | 3-8 | 2-5 |
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 | Problem Analysis, Decision Analysis, Risk Plan | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | ArchitectureQualityRiskAssessmentLean | Problem solvingRoot causeDecisionOperations | Root causeProblem solvingQualityIncident | LeanProblem solvingCoachingOperations |