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| Criterion |  Decision Making Constraint Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Product Discovery Experiment Canvas |  Product Discovery Test Card |
|---|---|---|---|---|
Purposedifferent | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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 experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Low | High | Low | Low |
Timedifferent | 30-90 min | Several meetings plus preparation and analysis; total effort depends on scope | 30-60 min | 20-35 min |
Participantsdifferent | 2-8 | Evaluation team, architects, and relevant stakeholders | 1-5 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Completed Experiment Canvas, Success Metric | Test Card with a pre-set threshold |
Tagsno overlap | ConstraintsDecisionPlanningOptions | ArchitectureQualityRiskTradeoffsStakeholders | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |