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Selected:ATAM (Architecture Tradeoff Analysis Method)Test CardRisk StormingHypothesis Prioritization Canvas
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Product Discovery Test Card |  Architecture Risk Storming |  Product Discovery Hypothesis Prioritization Canvas |
|---|---|---|---|---|
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. | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | When many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog. |
Complexitydifferent | High | Low | Low | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 20-35 min | 60-90 min | 60-90 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 1-5 | 4-12 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
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 | Annotated Diagram, Prioritized Risk List, Action Backlog | Prioritization Canvas, Hypothesis Backlog |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | ExperimentsValidationDiscoveryHypothesis | RiskArchitectureWorkshopValidation | ExperimentsPrioritizationDiscoveryHypothesis |