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Selected:ARID (Active Reviews for Intermediate Designs)Learning CardAssumption SurfacingRiskiest Assumption Test
| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Learning Card |  Decision Making Assumption Surfacing |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
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 Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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 | 2–4 h review as a planning range; preparation and evaluation additional | 25-40 min | 45-90 min | 1-2 Wochen pro Iteration |
Participantsdifferent | Designers, developers as users, and facilitation | 1-5 | 2-8 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Learning Card with evidence and next action | Assumption List, Critical Assumptions, Learning Plan | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | ExperimentsValidationDiscoveryLearning | AssumptionsRiskDecisionDiscovery | ExperimentsValidationDiscoveryAssumptions |