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| Criterion |  Domain Modeling Bounded Context Canvas |  Knowledge Modeling IBIS |  Architecture Request for Comments |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | When a business context is still loosely outlined, it shapes language, responsibility, and integration space. It clarifies what belongs together and where a boundary needs to hold. | 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. | 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. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 1-3 h | 1-3 h | 1-3 Wochen vom Draft bis zur Entscheidung | 15-45 min |
Participantsdifferent | 3-8 | 2-8 | 3-20 Reviewer | 1-3 |
Formatdifferent | Workshop + async | Workshop + async | Async | Async |
Outputdifferent | Context Canvas, Glossary, Integration Notes | Issue Map, Positions, Argument Notes | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | ADR File, Decision Log, Rationale |
Tagsno overlap | Domain-Driven DesignBoundariesModeling | RationaleKnowledgeDecision | ArchitectureDecisionAsyncGovernance | ArchitectureRationaleDocumentationGovernance |