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| Criterion |  Delivery Cost of Delay |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|
Purposedifferent | Helps clarify scope, order, and delivery flow in concrete terms. It makes work, constraints, and sequence manageable. The result is captured as a Cost of Delay table and prioritization sequence. | 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 | High | Medium | Medium |
Timedifferent | 90-180 min | 2–4 h review as a planning range; preparation and evaluation additional | 1-2 Wochen pro Iteration |
Participantsdifferent | 3-8 | Designers, developers as users, and facilitation | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | CoD Table, Prioritization Sequence | 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 | PrioritizationDeliveryEconomicsDecision | ArchitectureEngineeringFeedbackValidationTasks | ExperimentsValidationDiscoveryAssumptions |
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