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| Criterion |  Product Discovery Learning Card |  Product Discovery MVP Test Matrix |  Architecture LASR (Lightweight Approach for Software Reviews) |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. | 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. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 25-40 min | 45-75 min | 3–4 h for initial assessment; preparation and deeper analysis additional | 1-5 Tage |
Participantsdifferent | 1-5 | 2-8 | 1 or a small team; particularly suitable for 3–4 people | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Learning Card with evidence and next action | Test Matrix, Test Plan | 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 |
Tagsno overlap | ExperimentsValidationDiscoveryLearning | ExperimentsValidationDiscoveryOptions | ArchitectureQualityRiskAssessmentLean | ValidationExperimentsDemandDiscovery |