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| Criterion |  Product Strategy DIBB |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Test Card |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
Purposedifferent | 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. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | 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 | Low | Medium | Low | Medium |
Timedifferent | 1-2 h | 2–4 h review as a planning range; preparation and evaluation additional | 20-35 min | 1-2 Wochen pro Iteration |
Participantsdifferent | 2-8 | Designers, developers as users, and facilitation | 1-5 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | DIBB document, Belief list, Bet list, Learning report | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Test Card with a pre-set threshold | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | StrategyDecisionAssumptionsHypothesis | ArchitectureEngineeringFeedbackValidationTasks | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryAssumptions |