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| Criterion |  Operations Change Analysis |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Experiment Canvas |
|---|---|---|---|
Purposedifferent | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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 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 |
Timedifferent | 45-120 min | 2–4 h review as a planning range; preparation and evaluation additional | 30-60 min |
Participantsdifferent | 2-6 | Designers, developers as users, and facilitation | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Completed Experiment Canvas, Success Metric |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | ArchitectureEngineeringFeedbackValidationTasks | ExperimentsValidationDiscoveryHypothesis |
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