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| Criterion |  Innovation Lean Startup |  Architecture Architecture Decision Record |  Architecture arc42 |
|---|---|---|---|
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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. |
Complexitydifferent | Medium | Low | Low |
Timedifferent | Wochen bis Monate je Lernzyklus | 15-45 min | 1-2 Tage |
Participantsdifferent | 2-8 | 1-3 | 1-4 |
Formatdifferent | Workshop + async | Async | Workshop + async |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | ADR File, Decision Log, Rationale | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | LeanStartupValidationMVP | ArchitectureRationaleDocumentationGovernance | ArchitectureDocumentationCommunication |
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