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| Criterion |  Product Discovery Learning Card |  Product Discovery Fake Door Test |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Product Discovery MVP Test Matrix |
|---|---|---|---|---|
Purposedifferent | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | 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. | 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. |
Complexitydifferent | Low | Medium | High | Medium |
Timedifferent | 25-40 min | 1-5 Tage | Several meetings plus preparation and analysis; total effort depends on scope | 45-75 min |
Participantsdifferent | 1-5 | Nutzertraffic | Evaluation team, architects, and relevant stakeholders | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Learning Card with evidence and next action | 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 | Test Matrix, Test Plan |
Tagsno overlap | ExperimentsValidationDiscoveryLearning | ValidationExperimentsDemandDiscovery | ArchitectureQualityRiskTradeoffsStakeholders | ExperimentsValidationDiscoveryOptions |