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| Criterion |  Product Discovery Solution Interview |  UX Research Usability Testing |  Architecture LASR (Lightweight Approach for Software Reviews) |
|---|---|---|---|
Purposedifferent | 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. | 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. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 30-60 min je Interview | 1-2 h je Session | 3–4 h for initial assessment; preparation and deeper analysis additional |
Participantsdifferent | 5-10 Interviews | Based on research question | 1 or a small team; particularly suitable for 3–4 people |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Usability Issues, Severity List, Recommendations | 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 |
Tagsno overlap | ValidationInterviewsPrototype | ValidationUXPrototype | ArchitectureQualityRiskAssessmentLean |
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