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| Criterion |  Product Strategy Lean Canvas |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Product Discovery Test Card |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | High | Low | Medium |
Timedifferent | 45-90 min | Several meetings plus preparation and analysis; total effort depends on scope | 20-35 min | 45-60 min |
Participantsdifferent | 1-6 | Evaluation team, architects, and relevant stakeholders | 1-5 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | 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 | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | StartupLeanAssumptionsBusiness model | ArchitectureQualityRiskTradeoffsStakeholders | ExperimentsValidationDiscoveryHypothesis | AssumptionsRiskExperimentsValidation |