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Selected:Architecture Decision RecordARID (Active Reviews for Intermediate Designs)Hypothesis Prioritization CanvasTest Card
| Criterion |  Architecture Architecture Decision Record |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Hypothesis Prioritization Canvas |  Product Discovery Test Card |
|---|---|---|---|---|
Purposedifferent | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | 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 many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 15-45 min | 2–4 h review as a planning range; preparation and evaluation additional | 60-90 min | 20-35 min |
Participantsdifferent | 1-3 | Designers, developers as users, and facilitation | 3-8 | 1-5 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Prioritization Canvas, Hypothesis Backlog | Test Card with a pre-set threshold |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | ArchitectureEngineeringFeedbackValidationTasks | ExperimentsPrioritizationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |