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Selected:ATAM (Architecture Tradeoff Analysis Method)Learning CardAssumption SurfacingFake Door Test
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Product Discovery Learning Card |  Decision Making Assumption Surfacing |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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 | High | Low | Low | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 25-40 min | 45-90 min | 1-5 Tage |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 1-5 | 2-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Learning Card with evidence and next action | Assumption List, Critical Assumptions, Learning Plan | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | ExperimentsValidationDiscoveryLearning | AssumptionsRiskDecisionDiscovery | ValidationExperimentsDemandDiscovery |