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| Criterion | ![]() Agile Specification by Example | ![]() Product Strategy DIBB | ![]() Product Discovery Test Card | ![]() Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
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. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 60-90 min pro Feature | 1-2 h | 20-35 min | 1-2 Wochen pro Iteration |
Participantsdifferent | 3-6 | 2-8 | 1-5 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Example Table, Acceptance Tests | DIBB document, Belief list, Bet list, Learning report | Test Card with a pre-set threshold | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | AgileRequirementsExamplesBehavior-Driven Development | StrategyDecisionAssumptionsHypothesis | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryAssumptions |



