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| Criterion |  Innovation Double Diamond |  Decision Making DACI |  Architecture Request for Comments |  Decision Making RAPID |
|---|---|---|---|---|
Purposedifferent | For complex problems with a fuzzy situation, the method cleanly separates search space and decision. It first creates breadth in understanding and then focus in elaboration. This brings open questions, problem definition, and solution path into a traceable movement. | 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. | An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale. | 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. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | Wochen bis Monate | 30-60 min | 1-3 Wochen vom Draft bis zur Entscheidung | 45-90 min |
Participantsdifferent | 3-12 | 2-10 | 3-20 Reviewer | 3-12 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | DACI Matrix, Decision Owner, Decision Log | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | RAPID Role Map, Recommendation, Decision Log |
Tagsno overlap | ProcessDivergenceInnovation | DecisionRolesGovernanceAlignment | ArchitectureDecisionAsyncGovernance | DecisionRolesGovernance |