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Selected:Assumption SurfacingA/B TestingATAM (Architecture Tradeoff Analysis Method)Experiment Canvas
| Criterion |  Decision Making Assumption Surfacing |  Growth A/B Testing |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Product Discovery Experiment Canvas |
|---|---|---|---|---|
Purposedifferent | 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 two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | 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. |
Complexitydifferent | Low | High | High | Low |
Timedifferent | 45-90 min | 1-4 Wochen | Several meetings plus preparation and analysis; total effort depends on scope | 30-60 min |
Participantsdifferent | 2-8 | 1-6 | Evaluation team, architects, and relevant stakeholders | 1-5 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | Experiment results, Decision log, Learning summary | 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 |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | ExperimentsGrowthAnalyticsValidation | ArchitectureQualityRiskTradeoffsStakeholders | ExperimentsValidationDiscoveryHypothesis |