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| Criterion |  Facilitation 1-2-4-All |  Architecture Architecture Decision Record |  Architecture C4 Model |  Innovation Round Robin Brainstorming |
|---|---|---|---|---|
Purposedifferent | When many people in a group too rarely get to speak, 1-2-4-All distributes thinking time more fairly. The format builds participation step by step and makes quiet or still-unformed thoughts usable faster. | 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. | 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. | With unevenly distributed speaking time, the method brings every person into the contribution one after another. It prevents early voices from setting the direction while still producing a shared idea space. This makes participation plannable and the team's diversity visible. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 10-20 min | 15-45 min | 1-4 h | 20-45 min |
Participantsdifferent | 4-100+ | 1-3 | 1-5 | 4-10 |
Formatdifferent | Workshop | Async | Workshop + async | Workshop |
Outputdifferent | Idea List, Shared Insights, Emergent Themes | ADR File, Decision Log, Rationale | Context Diagram, Container Diagram, Component Diagram | Idea List, Cluster, Shortlist |
Tagsno overlap | FacilitationInclusionIdeation | ArchitectureRationaleDocumentationGovernance | ArchitectureCommunicationVisualization | BrainstormingIdeationFacilitationInclusionCreativity |