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Selected:Usability TestingSolution InterviewLASR (Lightweight Approach for Software Reviews)Assumption Mapping
| Criterion |  UX Research Usability Testing |  Product Discovery Solution Interview |  Architecture LASR (Lightweight Approach for Software Reviews) |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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 a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 1-2 h je Session | 30-60 min je Interview | 3–4 h for initial assessment; preparation and deeper analysis additional | 45-60 min |
Participantsdifferent | Based on research question | 5-10 Interviews | 1 or a small team; particularly suitable for 3–4 people | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Usability Issues, Severity List, Recommendations | Solution Feedback, Objection List, Validation Notes | 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 | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ValidationUXPrototype | ValidationInterviewsPrototype | ArchitectureQualityRiskAssessmentLean | AssumptionsRiskExperimentsValidation |