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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  UX Research Tree Testing |  UX Research First-click Testing |
|---|---|---|---|
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 a navigation exists but search paths still fail, tree testing checks findability without visual distraction. The method shows whether labels, levels, and paths really lead to the intended destination. | When users immediately turn the wrong way on a screen or wireframe, first click testing checks initial orientation at high speed. The first click shows early whether expectation, labeling, and wayfinding fit together. |
Complexitydifferent | High | Medium | Low |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 1-2 Tage | 1-2 Tage |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | Based on research question | 10-30 |
Formatdifferent | Workshop + async | Async | 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 | Findability Metrics, Path Analysis, Revised IA | Click Heatmap, Success Rate, Design Recommendations |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | Information architectureNavigationFindability | UXNavigationFindabilityValidation |
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