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| Criterion |  Product Discovery Learning Card |  Architecture LASR (Lightweight Approach for Software Reviews) |  Product Discovery Test Card |  Product Discovery Experiment Canvas |
|---|---|---|---|---|
Purposedifferent | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | When experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 25-40 min | 3–4 h for initial assessment; preparation and deeper analysis additional | 20-35 min | 30-60 min |
Participantsdifferent | 1-5 | 1 or a small team; particularly suitable for 3–4 people | 1-5 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Learning Card with evidence and next action | 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 | Test Card with a pre-set threshold | Completed Experiment Canvas, Success Metric |
Tagsno overlap | ExperimentsValidationDiscoveryLearning | ArchitectureQualityRiskAssessmentLean | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |