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| Criterion |  Innovation Morphological Analysis |  Architecture C4 Model |  Architecture Architecture Decision Record |  Innovation Brainstorming |
|---|---|---|---|---|
Purposedifferent | For a search for solutions with many degrees of freedom, a grid emerges for systematic combinations. The method separates features, variants, and exclusion criteria, so the space gets explored deliberately. | 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. | 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. | 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. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-3 h | 1-4 h | 15-45 min | 30-60 min |
Participantsdifferent | 2-8 | 1-5 | 1-3 | 4-12 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | Morphological Box, Concept Combinations, Idea Shortlist | Context Diagram, Container Diagram, Component Diagram | ADR File, Decision Log, Rationale | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | IdeationInnovationCreativity | ArchitectureCommunicationVisualization | ArchitectureRationaleDocumentationGovernance | BrainstormingIdeationCreativityWorkshopDivergence |