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Selected:Decision MatrixAssumption SurfacingProblem InterviewATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Decision Making Decision Matrix |  Decision Making Assumption Surfacing |  Product Discovery Problem Interview |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | When several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. | 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 the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | 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. |
Complexitydifferent | Medium | Low | Medium | High |
Timedifferent | 45-90 min | 45-90 min | 30-60 min je Interview | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 2-8 | 2-8 | 5-12 Interviews | Evaluation team, architects, and relevant stakeholders |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Decision Matrix, Scoring Rationale, Selected Option | Assumption List, Critical Assumptions, Learning Plan | Problem Evidence, Risk Notes, Customer Segments | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | DecisionCriteriaScoringTradeoffs | AssumptionsRiskDecisionDiscovery | DiscoveryInterviewsValidation | ArchitectureQualityRiskTradeoffsStakeholders |