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Selected:Problem InterviewRisk MatrixARID (Active Reviews for Intermediate Designs)Assumption Surfacing
| Criterion |  Product Discovery Problem Interview |  Decision Making Risk Matrix |  Architecture ARID (Active Reviews for Intermediate Designs) |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | When a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. | 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. | 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. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 30-60 min je Interview | 30-60 min | 2–4 h review as a planning range; preparation and evaluation additional | 45-90 min |
Participantsdifferent | 5-12 Interviews | 3-10 | Designers, developers as users, and facilitation | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Risk Matrix, Top Risk List | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | DiscoveryInterviewsValidation | RiskDecisionPrioritizationAssessment | ArchitectureEngineeringFeedbackValidationTasks | AssumptionsRiskDecisionDiscovery |