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| Criterion |  UX Research Usability Testing |  Growth A/B Testing |  Architecture LASR (Lightweight Approach for Software Reviews) |  Architecture Risk Storming |
|---|---|---|---|---|
Purposedifferent | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | 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. | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 1-2 h je Session | 1-4 Wochen | 3–4 h for initial assessment; preparation and deeper analysis additional | 60-90 min |
Participantsdifferent | Based on research question | 1-6 | 1 or a small team; particularly suitable for 3–4 people | 4-12 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Usability Issues, Severity List, Recommendations | Experiment results, Decision log, Learning 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 | Annotated Diagram, Prioritized Risk List, Action Backlog |
Tagsno overlap | ValidationUXPrototype | ExperimentsGrowthAnalyticsValidation | ArchitectureQualityRiskAssessmentLean | RiskArchitectureWorkshopValidation |