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Selected:ATAM (Architecture Tradeoff Analysis Method)ARID (Active Reviews for Intermediate Designs)Assumption SurfacingAssumption Mapping
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Architecture ARID (Active Reviews for Intermediate Designs) |  Decision Making Assumption Surfacing |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | High | Medium | Low | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 2–4 h review as a planning range; preparation and evaluation additional | 45-90 min | 45-60 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | Designers, developers as users, and facilitation | 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 development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Assumption List, Critical Assumptions, Learning Plan | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | ArchitectureEngineeringFeedbackValidationTasks | AssumptionsRiskDecisionDiscovery | AssumptionsRiskExperimentsValidation |