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| Criterion |  Innovation Lean Startup |  Decision Making RAPID |  Architecture ARID (Active Reviews for Intermediate Designs) |  Architecture Request for Comments |
|---|---|---|---|---|
Purposedifferent | 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. | In complex management decisions, clarity is often missing about who recommends, who agrees, and who makes the decision. RAPID creates this assignment and stabilizes decisions across several levels. | 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. | 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. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | Wochen bis Monate je Lernzyklus | 45-90 min | 2–4 h review as a planning range; preparation and evaluation additional | 1-3 Wochen vom Draft bis zur Entscheidung |
Participantsdifferent | 2-8 | 3-12 | Designers, developers as users, and facilitation | 3-20 Reviewer |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | RAPID Role Map, Recommendation, Decision Log | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets |
Tagsno overlap | LeanStartupValidationMVP | DecisionRolesGovernance | ArchitectureEngineeringFeedbackValidationTasks | ArchitectureDecisionAsyncGovernance |