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| Criterion |  Knowledge Modeling IBIS |  Architecture Software Architecture Canvas |  Architecture Request for Comments |  Decision Making DACI |
|---|---|---|---|---|
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. | The Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. | 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. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 1-3 h | 1-2 h | 1-3 Wochen vom Draft bis zur Entscheidung | 30-60 min |
Participantsdifferent | 2-8 | 3-10 | 3-20 Reviewer | 2-10 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Architecture Canvas, Goals, Constraints, Quality Attributes | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | RationaleKnowledgeDecision | CanvasArchitectureAlignmentWorkshop | ArchitectureDecisionAsyncGovernance | DecisionRolesGovernanceAlignment |