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Selected:A3 Problem SolvingLASR (Lightweight Approach for Software Reviews)A/B TestingFailure Mode and Effects Analysis
| Criterion |  Operations A3 Problem Solving |  Architecture LASR (Lightweight Approach for Software Reviews) |  Growth A/B Testing |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | 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 two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Medium | Medium | High | High |
Timedifferent | 45-90 min | 3–4 h for initial assessment; preparation and deeper analysis additional | 1-4 Wochen | 2-6 h |
Participantsdifferent | 2-5 | 1 or a small team; particularly suitable for 3–4 people | 1-6 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | 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 | Experiment results, Decision log, Learning summary | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | LeanProblem solvingCoachingOperations | ArchitectureQualityRiskAssessmentLean | ExperimentsGrowthAnalyticsValidation | RiskQualityOperationsRoot cause |