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| Criterion |  Agile Specification by Example |  Product Discovery Assumption Mapping |  Product Discovery Experiment Canvas |  Product Discovery Test Card |
|---|---|---|---|---|
Purposedifferent | When business rules need to become precise, it ties language, example, and test together. It sorts work by value, risk, and delivery ability. The result is captured as an Example Table and Acceptance Tests. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 60-90 min pro Feature | 45-60 min | 30-60 min | 20-35 min |
Participantsdifferent | 3-6 | 2-8 | 1-5 | 1-5 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Example Table, Acceptance Tests | Assumption map, Test backlog, Risk ranking | Completed Experiment Canvas, Success Metric | Test Card with a pre-set threshold |
Tagsno overlap | AgileRequirementsExamplesBehavior-Driven Development | AssumptionsRiskExperimentsValidation | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |