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| Criterion |  Product Discovery Pretotyping |  Operations Root Cause Analysis |  Architecture ARID (Active Reviews for Intermediate Designs) |
|---|---|---|---|
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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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. |
Complexitydifferent | Low | Medium | Medium |
Timedifferent | Stunden bis wenige Tage | 1-4 h | 2–4 h review as a planning range; preparation and evaluation additional |
Participantsdifferent | 1-4 | 3-8 | Designers, developers as users, and facilitation |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Pretotyping sketch, Test setup, Conversion data, Go or no-go decision | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions |
Tagsno overlap | ValidationDemandMVP | Root causeProblem solvingQualityIncident | ArchitectureEngineeringFeedbackValidationTasks |
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