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Selected:Learning CardARID (Active Reviews for Intermediate Designs)Assumption MappingExperiment Canvas
| Criterion |  Product Discovery Learning Card |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Assumption Mapping |  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. | 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. | 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. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 25-40 min | 2–4 h review as a planning range; preparation and evaluation additional | 45-60 min | 30-60 min |
Participantsdifferent | 1-5 | Designers, developers as users, and facilitation | 2-8 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Learning Card with evidence and next action | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Assumption map, Test backlog, Risk ranking | Completed Experiment Canvas, Success Metric |
Tags1 shared | ExperimentsValidationDiscoveryLearning | ArchitectureEngineeringFeedbackValidationTasks | AssumptionsRiskExperimentsValidation | ExperimentsValidationDiscoveryHypothesis |