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| Criterion |  Architecture C4 Model |  Innovation Round Robin Brainstorming |  Innovation Reverse Brainstorming |  Innovation Brainstorming |
|---|---|---|---|---|
Purposedifferent | 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. | For persistent errors or blockages, the method shifts the view to the opposite of the desired effect. It exposes the mechanics of failure and makes hidden causes easier to grasp. This makes improvement more concrete and the problem clearer. | When a team faces an open question with many obvious directions, the method first creates breadth instead of premature commitment. It separates idea flow from evaluation and makes lines of thought visible, creating a pool for selection and further development. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 1-4 h | 20-45 min | 30-60 min | 30-60 min |
Participantsdifferent | 1-5 | 4-10 | 3-12 | 4-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Idea List, Cluster, Shortlist | Reverse Ideas, Risk Themes, Solution Ideas | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | ArchitectureCommunicationVisualization | BrainstormingIdeationFacilitationInclusionCreativity | BrainstormingIdeationCreativityRisk | BrainstormingIdeationCreativityWorkshopDivergence |