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| Criterion |  Architecture Architecture Decision Record |  Decision Making Decision Matrix |  Product Strategy ICE Scoring |
|---|---|---|---|
Purposedifferent | 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 several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. | 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. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 15-45 min | 45-90 min | 30-60 min |
Participantsdifferent | 1-3 | 2-8 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Decision Matrix, Scoring Rationale, Selected Option | ICE Table, Top Idea List |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | DecisionCriteriaScoringTradeoffs | PrioritizationScoringGrowthDecision |
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