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| Criterion |  Product Discovery Solution Interview |  Innovation Lean Startup |  Architecture ARID (Active Reviews for Intermediate Designs) |
|---|---|---|---|
Purposedifferent | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | 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. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 30-60 min je Interview | Wochen bis Monate je Lernzyklus | 2–4 h review as a planning range; preparation and evaluation additional |
Participantsdifferent | 5-10 Interviews | 2-8 | Designers, developers as users, and facilitation |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions |
Tags1 shared | ValidationInterviewsPrototype | LeanStartupValidationMVP | ArchitectureEngineeringFeedbackValidationTasks |
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