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Selected:A/B TestingLASR (Lightweight Approach for Software Reviews)Fake Door TestATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Growth A/B Testing |  Architecture LASR (Lightweight Approach for Software Reviews) |  Product Discovery Fake Door Test |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | 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. | 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 demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. |
Complexitydifferent | High | Medium | Medium | High |
Timedifferent | 1-4 Wochen | 3–4 h for initial assessment; preparation and deeper analysis additional | 1-5 Tage | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 1-6 | 1 or a small team; particularly suitable for 3–4 people | Nutzertraffic | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Async | Workshop + async | Async | Workshop + async |
Outputdifferent | Experiment results, Decision log, Learning summary | 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 | Click Data, Interest Signal, Learning Decision | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | ExperimentsGrowthAnalyticsValidation | ArchitectureQualityRiskAssessmentLean | ValidationExperimentsDemandDiscovery | ArchitectureQualityRiskTradeoffsStakeholders |