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Selected:Usability TestingSolution InterviewATAM (Architecture Tradeoff Analysis Method)Risk Storming
| Criterion |  UX Research Usability Testing |  Product Discovery Solution Interview |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Architecture Risk Storming |
|---|---|---|---|---|
Purposedifferent | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | 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. | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. |
Complexitydifferent | Medium | Medium | High | Low |
Timedifferent | 1-2 h je Session | 30-60 min je Interview | Several meetings plus preparation and analysis; total effort depends on scope | 60-90 min |
Participantsdifferent | Based on research question | 5-10 Interviews | Evaluation team, architects, and relevant stakeholders | 4-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Usability Issues, Severity List, Recommendations | Solution Feedback, Objection List, Validation Notes | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Annotated Diagram, Prioritized Risk List, Action Backlog |
Tagsno overlap | ValidationUXPrototype | ValidationInterviewsPrototype | ArchitectureQualityRiskTradeoffsStakeholders | RiskArchitectureWorkshopValidation |