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Selected:User InterviewsLASR (Lightweight Approach for Software Reviews)Constraint AnalysisATAM (Architecture Tradeoff Analysis Method)
| Criterion |  UX Research User Interviews |  Architecture LASR (Lightweight Approach for Software Reviews) |  Decision Making Constraint 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. | LASR helps development teams identify where their software falls short of important quality goals and which improvements to consider. A small group with existing system knowledge can make an initial assessment and investigate open questions in more detail. | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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 | Medium | Low | High |
Timedifferent | 30–60 min per interview | 3–4 h for initial assessment; preparation and deeper analysis additional | 30-90 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 1 participant per interview | 1 or a small team; particularly suitable for 3–4 people | 2-8 | Evaluation team, architects, and relevant stakeholders |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Lean Mission Statement describing the software’s purpose, Prioritized quality goals and evaluation criteria, Risks and estimated gaps against quality goals, More closely examined findings and open checks | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | 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 | ArchitectureQualityRiskAssessmentLean | ConstraintsDecisionPlanningOptions | ArchitectureQualityRiskTradeoffsStakeholders |