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| Criterion |  Innovation Solo Brainstorming |  Decision Making RAPID |  Architecture Architecture Decision Record |  Decision Making DACI |
|---|---|---|---|---|
Purposedifferent | For an individual thinking problem with no counterpart immediately available, the method creates a protected space for one's own approaches. It prevents outside opinions from narrowing thinking too early. This lets ideas mature before they go into a group format. | In complex management decisions, clarity is often missing about who recommends, who agrees, and who makes the decision. RAPID creates this assignment and stabilizes decisions across several levels. | 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. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 15-60 min | 45-90 min | 15-45 min | 30-60 min |
Participantsdifferent | 1 | 3-12 | 1-3 | 2-10 |
Formatdifferent | Async | Workshop + async | Async | Workshop + async |
Outputdifferent | Personal Idea List, Sketches or Mind Map, Pre-Read for Group Session | RAPID Role Map, Recommendation, Decision Log | ADR File, Decision Log, Rationale | DACI Matrix, Decision Owner, Decision Log |
Tagsno overlap | BrainstormingIdeationAsync | DecisionRolesGovernance | ArchitectureRationaleDocumentationGovernance | DecisionRolesGovernanceAlignment |