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| Criterion |  Product Strategy Lean Canvas |  Architecture Request for Comments |  Innovation Lean Startup |  Architecture ARID (Active Reviews for Intermediate Designs) |
|---|---|---|---|---|
Purposedifferent | 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. | An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale. | 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 | Medium |
Timedifferent | 45-90 min | 1-3 Wochen vom Draft bis zur Entscheidung | Wochen bis Monate je Lernzyklus | 2–4 h review as a planning range; preparation and evaluation additional |
Participantsdifferent | 1-6 | 3-20 Reviewer | 2-8 | Designers, developers as users, and facilitation |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | 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 |
Tagsno overlap | StartupLeanAssumptionsBusiness model | ArchitectureDecisionAsyncGovernance | LeanStartupValidationMVP | ArchitectureEngineeringFeedbackValidationTasks |