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Selected:Solution InterviewAssumption SurfacingARID (Active Reviews for Intermediate Designs)Riskiest Assumption Test
| Criterion |  Product Discovery Solution Interview |  Decision Making Assumption Surfacing |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
Purposedifferent | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | 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. | 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 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 | Medium | Medium |
Timedifferent | 30-60 min je Interview | 45-90 min | 2–4 h review as a planning range; preparation and evaluation additional | 1-2 Wochen pro Iteration |
Participantsdifferent | 5-10 Interviews | 2-8 | Designers, developers as users, and facilitation | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Assumption List, Critical Assumptions, Learning Plan | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | ValidationInterviewsPrototype | AssumptionsRiskDecisionDiscovery | ArchitectureEngineeringFeedbackValidationTasks | ExperimentsValidationDiscoveryAssumptions |