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Selected:ATAM (Architecture Tradeoff Analysis Method)Riskiest Assumption TestArchitecture Communication CanvasAssumption Surfacing
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Product Discovery Riskiest Assumption Test |  Architecture Architecture Communication Canvas |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
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. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | 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. |
Complexitydifferent | High | Medium | Medium | Low |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 1-2 Wochen pro Iteration | 60-120 min | 45-90 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 2-6 | 2-8 | 2-8 |
Formatsame | Workshop + async | 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 | Prioritized Assumption List, Test Plan, Results Report | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | ExperimentsValidationDiscoveryAssumptions | ArchitectureCommunicationStakeholdersCanvas | AssumptionsRiskDecisionDiscovery |