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| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Strategy Lean Canvas |  Innovation Design Sprint |  Innovation Lean Startup |
|---|---|---|---|---|
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. | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | When the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. | 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. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 45-90 min | 4-5 Tage | Wochen bis Monate je Lernzyklus |
Participantsdifferent | Designers, developers as users, and facilitation | 1-6 | 5-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Lean Canvas, Core Assumptions, Experiment Backlog | Prototype, Test Findings, Decision Rationale | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | StartupLeanAssumptionsBusiness model | Design sprintPrototypeValidationInnovation | LeanStartupValidationMVP |