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Selected:Assumption MappingARID (Active Reviews for Intermediate Designs)Counter MetricsRiskiest Assumption Test
| Criterion |  Product Discovery Assumption Mapping |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Strategy Counter Metrics |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
Purposedifferent | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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 a headline metric could mask side effects, it adds guardrail signals against unwanted outcomes. It connects customer value, product logic, and decision priorities. The result is captured as a counter-metric list and guardrail definitions. | 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 | Medium | Low | Medium |
Timedifferent | 45-60 min | 2–4 h review as a planning range; preparation and evaluation additional | 30-60 min | 1-2 Wochen pro Iteration |
Participantsdifferent | 2-8 | Designers, developers as users, and facilitation | 2-6 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Assumption map, Test backlog, Risk ranking | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Counter Metric List, Guardrail Definitions | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | AssumptionsRiskExperimentsValidation | ArchitectureEngineeringFeedbackValidationTasks | MetricsMeasurementStrategyExperiments | ExperimentsValidationDiscoveryAssumptions |