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| Criterion |  Innovation Brainwriting |  Architecture C4 Model |  Decision Making DACI |
|---|---|---|---|
Purposedifferent | When loud voices or hierarchy distort the idea search, the method creates a quiet entry into joint development. It gives everyone thinking space and gathers contributions without social brakes, making diversity more visible and easier to build on. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 15-30 min | 1-4 h | 30-60 min |
Participantsdifferent | 3-12 | 1-5 | 2-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Idea sheets, Expanded concepts, Prioritized list | Context Diagram, Container Diagram, Component Diagram | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | BrainstormingCollaborationInclusionIdeas | ArchitectureCommunicationVisualization | DecisionRolesGovernanceAlignment |
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