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Selected:ARID (Active Reviews for Intermediate Designs)Value Chain AnalysisAssumption SurfacingAssumption Mapping
| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Business Strategy Value Chain Analysis |  Decision Making Assumption Surfacing |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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. | Value Chain Analysis shows where value is created, costs accrue, and differentiation becomes possible along the process. It compares strengths, risks, market logic, and courses of action. The result is captured as a value-chain map and lever list. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | High | Low | Medium |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | Half day | 45-90 min | 45-60 min |
Participantsdifferent | Designers, developers as users, and facilitation | 3-8 | 2-8 | 2-8 |
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 | Value Chain Map, Lever List | Assumption List, Critical Assumptions, Learning Plan | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | StrategyBusiness modelDiagnosisAnalysis | AssumptionsRiskDecisionDiscovery | AssumptionsRiskExperimentsValidation |