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| Criterion |  Knowledge Modeling IBIS |  Innovation Lean Startup |  Architecture Request for Comments |  Architecture ARID (Active Reviews for Intermediate Designs) |
|---|---|---|---|---|
Purposedifferent | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | 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. | 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. | 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 | 1-3 h | Wochen bis Monate je Lernzyklus | 1-3 Wochen vom Draft bis zur Entscheidung | 2–4 h review as a planning range; preparation and evaluation additional |
Participantsdifferent | 2-8 | 2-8 | 3-20 Reviewer | Designers, developers as users, and facilitation |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions |
Tagsno overlap | RationaleKnowledgeDecision | LeanStartupValidationMVP | ArchitectureDecisionAsyncGovernance | ArchitectureEngineeringFeedbackValidationTasks |