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Selected:Assumption SurfacingALPEN MethodARID (Active Reviews for Intermediate Designs)Assumption Mapping
| Criterion |  Decision Making Assumption Surfacing |  Operations ALPEN Method |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | 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. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | 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. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 45-90 min | 10-20 min daily | 2–4 h review as a planning range; preparation and evaluation additional | 45-60 min |
Participantsdifferent | 2-8 | 1 | Designers, developers as users, and facilitation | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | Daily Plan, Time Estimates, Review Notes | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | PlanningTime managementProductivityOperations | ArchitectureEngineeringFeedbackValidationTasks | AssumptionsRiskExperimentsValidation |