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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  UX Research Tree Testing |  Architecture C4 Model |  UX Research Card Sorting |
|---|---|---|---|---|
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. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | When content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. |
Complexitydifferent | High | Medium | Low | Low |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 1-2 Tage | 1-4 h | 20-45 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | Based on research question | 1-5 | Based on research question |
Formatdifferent | Workshop + async | 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 | Findability Metrics, Path Analysis, Revised IA | Context Diagram, Container Diagram, Component Diagram | Content groups, Label set, IA hypotheses |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | Information architectureNavigationFindability | ArchitectureCommunicationVisualization | Information architectureNavigationStructure |