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Selected:ARID (Active Reviews for Intermediate Designs)Request for CommentsTest CardHypothesis Prioritization Canvas
| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Architecture Request for Comments |  Product Discovery Test Card |  Product Discovery Hypothesis Prioritization Canvas |
|---|---|---|---|---|
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. | An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 1-3 Wochen vom Draft bis zur Entscheidung | 20-35 min | 60-90 min |
Participantsdifferent | Designers, developers as users, and facilitation | 3-20 Reviewer | 1-5 | 3-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Test Card with a pre-set threshold | Prioritization Canvas, Hypothesis Backlog |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | ArchitectureDecisionAsyncGovernance | ExperimentsValidationDiscoveryHypothesis | ExperimentsPrioritizationDiscoveryHypothesis |