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Criterion
Paper illustration for DACI
Decision Making
DACI
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
Paper illustration for RAPID
Decision Making
RAPID
Purposedifferent
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.Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it.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
LowLowMedium
Timedifferent
30-60 min45-90 min45-90 min
Participantsdifferent
2-102-83-12
Formatsame
Workshop + asyncWorkshop + asyncWorkshop + async
Outputdifferent
DACI Matrix, Decision Owner, Decision LogAssumption List, Critical Assumptions, Learning PlanRAPID Role Map, Recommendation, Decision Log
Tags1 shared
DecisionRolesGovernanceAlignment
AssumptionsRiskDecisionDiscovery
DecisionRolesGovernance
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Often compared together

Methods with strong topical overlap with the current selection, not yet in the comparison.

Paper illustration of Decision Rights Mapping with its method-specific working model.
Decision Making
Decision Rights Mapping
Paper illustration of a calm four-quadrant Assumption Map with hypothesis cards and emphasis on important assumptions with little evidence.
Product Discovery
Assumption Mapping
Paper illustration of DIBB with its method-specific working model.
Product Strategy
DIBB
A hypothetical failure makes concrete risks, signals, and fitting mitigations visible.
Decision Making
Pre-Mortem