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Selected:ARID (Active Reviews for Intermediate Designs)Test CardLearning CardHypothesis Prioritization Canvas
| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Test Card |  Product Discovery Learning Card |  Product Discovery Hypothesis Prioritization Canvas |
|---|---|---|---|---|
Purposedifferent | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | When many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 20-35 min | 25-40 min | 60-90 min |
Participantsdifferent | Designers, developers as users, and facilitation | 1-5 | 1-5 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Test Card with a pre-set threshold | Learning Card with evidence and next action | Prioritization Canvas, Hypothesis Backlog |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryLearning | ExperimentsPrioritizationDiscoveryHypothesis |