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| Criterion |  Product Discovery Fake Door Test |  Growth A/B Testing |  Architecture LASR (Lightweight Approach for Software Reviews) |
|---|---|---|---|
Purposedifferent | 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. | 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. |
Complexitydifferent | Medium | High | Medium |
Timedifferent | 1-5 Tage | 1-4 Wochen | 3–4 h for initial assessment; preparation and deeper analysis additional |
Participantsdifferent | Nutzertraffic | 1-6 | 1 or a small team; particularly suitable for 3–4 people |
Formatdifferent | Async | Async | Workshop + async |
Outputdifferent | Click Data, Interest Signal, Learning Decision | 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 |
Tagsno overlap | ValidationExperimentsDemandDiscovery | ExperimentsGrowthAnalyticsValidation | ArchitectureQualityRiskAssessmentLean |
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