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| Criterion |  Product Strategy ICE Scoring |  Architecture C4 Model |  Architecture Architecture Decision Record |
|---|---|---|---|
Purposedifferent | When ideas need sorting quickly, it condenses impact, confidence, and effort into one compact score. It connects customer value, product logic, and decision priorities. The result is captured as an ICE table and top-ideas list. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 30-60 min | 1-4 h | 15-45 min |
Participantsdifferent | 2-8 | 1-5 | 1-3 |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | ICE Table, Top Idea List | Context Diagram, Container Diagram, Component Diagram | ADR File, Decision Log, Rationale |
Tagsno overlap | PrioritizationScoringGrowthDecision | ArchitectureCommunicationVisualization | ArchitectureRationaleDocumentationGovernance |
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