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| Criterion |  Architecture Architecture Decision Record |  Product Discovery Context Canvas |  Architecture Request for Comments |
|---|---|---|---|
Purposedifferent | 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. | When an environment of users, systems, and constraints is hard to grasp, it puts the context compactly on the table. It creates a clear reading of influence, boundary, and dependency. | 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. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 15-45 min | 45-90 min | 1-3 Wochen vom Draft bis zur Entscheidung |
Participantsdifferent | 1-3 | 3-10 | 3-20 Reviewer |
Formatdifferent | Async | Workshop | Async |
Outputdifferent | ADR File, Decision Log, Rationale | Context canvas, Open questions, Shared context notes | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | ContextFramingRequirementsCanvas | ArchitectureDecisionAsyncGovernance |
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