View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
Selected:ARID (Active Reviews for Intermediate Designs)Request for CommentsTest CardExperiment Canvas
| Criterion | ![]() Architecture ARID (Active Reviews for Intermediate Designs) | ![]() Architecture Request for Comments | ![]() Product Discovery Test Card | ![]() Product Discovery Experiment 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 experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 1-3 Wochen vom Draft bis zur Entscheidung | 20-35 min | 30-60 min |
Participantsdifferent | Designers, developers as users, and facilitation | 3-20 Reviewer | 1-5 | 1-5 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
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 | Completed Experiment Canvas, Success Metric |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | ArchitectureDecisionAsyncGovernance | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |



