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| Criterion |  Decision Making Constraint Analysis |  Architecture Software Architecture Canvas |  Decision Making DACI |  Architecture Request for Comments |
|---|---|---|---|---|
Purposedifferent | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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. | 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. | 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 | Low | Medium |
Timedifferent | 30-90 min | 1-2 h | 30-60 min | 1-3 Wochen vom Draft bis zur Entscheidung |
Participantsdifferent | 2-8 | 3-10 | 2-10 | 3-20 Reviewer |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Architecture Canvas, Goals, Constraints, Quality Attributes | DACI Matrix, Decision Owner, Decision Log | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets |
Tagsno overlap | ConstraintsDecisionPlanningOptions | CanvasArchitectureAlignmentWorkshop | DecisionRolesGovernanceAlignment | ArchitectureDecisionAsyncGovernance |