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Selected:User Interviewsarc42Failure Mode and Effects AnalysisATAM (Architecture Tradeoff Analysis Method)
| Criterion |  UX Research User Interviews |  Architecture arc42 |  Operations Failure Mode and Effects Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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 | Low | Low | High | High |
Timedifferent | 30–60 min per interview | 1-2 Tage | 2-6 h | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 1 participant per interview | 1-4 | 3-10 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Architecture Document, Context View, Runtime View, Deployment View | FMEA Table, Risk Priority, Mitigation Actions | 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 | QualitativeResearchCustomerDiscovery | ArchitectureDocumentationCommunication | RiskQualityOperationsRoot cause | ArchitectureQualityRiskTradeoffsStakeholders |