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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  UX Research Affinity Diagramming |  UX Research User Interviews |  UX Research Personas |
|---|---|---|---|---|
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 research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | When target groups stay too vague and teams talk about the same people differently, personas create a shared, solid picture of usage. Condensed profiles make needs, contexts, and differences tangible enough for decisions. |
Complexitydifferent | High | Low | Low | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 45–90 min | 30–60 min per interview | 1-3 Tage |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 3-10 | 1 participant per interview | Internes Team |
Formatdifferent | Workshop + async | Workshop | 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 | Theme clusters, Insight statements, Opportunity areas | Interview Notes, Themes, Insight Summary | Persona Profiles, Needs Summary, Scenario Notes |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | SynthesisQualitativeRoot cause | QualitativeResearchCustomerDiscovery | ResearchCustomerSynthesis |