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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Product Discovery Test Card |  Innovation Design Sprint |  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 Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | When the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. | 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 | High | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 20-35 min | 4-5 Tage | 1-5 Tage |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 1-5 | 5-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop | 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 | Test Card with a pre-set threshold | Prototype, Test Findings, Decision Rationale | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | ExperimentsValidationDiscoveryHypothesis | Design sprintPrototypeValidationInnovation | ValidationExperimentsDemandDiscovery |