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| Criterion |  Product Discovery Pretotyping |  Architecture ARID (Active Reviews for Intermediate Designs) |  Engineering Goal Question Metric |
|---|---|---|---|
Purposedifferent | Pretotyping clarifies whether a customer problem and solution idea create enough real demand. It separates problem, assumption, solution, and evidence, and captures the result as a pretotyping sketch, test setup, and conversion data. | 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. | Helps clarify technical problems, hypotheses, and next steps in concrete terms. It breaks a technical problem into testable parts. The result is captured as a GQM table and metric briefs. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | Stunden bis wenige Tage | 2–4 h review as a planning range; preparation and evaluation additional | 90-180 min |
Participantsdifferent | 1-4 | Designers, developers as users, and facilitation | 3-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Pretotyping sketch, Test setup, Conversion data, Go or no-go decision | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | GQM Table, Metric Profiles |
Tagsno overlap | ValidationDemandMVP | ArchitectureEngineeringFeedbackValidationTasks | MetricsMeasurementEngineeringAlignment |
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