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Selected:ARID (Active Reviews for Intermediate Designs)Risk StormingAssumption SurfacingRiskiest Assumption Test
| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Architecture Risk Storming |  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. | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | 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 | 60-90 min | 45-90 min | 1-2 Wochen pro Iteration |
Participantsdifferent | Designers, developers as users, and facilitation | 4-12 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Annotated Diagram, Prioritized Risk List, Action Backlog | Assumption List, Critical Assumptions, Learning Plan | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | RiskArchitectureWorkshopValidation | AssumptionsRiskDecisionDiscovery | ExperimentsValidationDiscoveryAssumptions |