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Criterion
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
Paper illustration of a calibrated five-by-five risk matrix with response cards.
Decision Making
Risk Matrix
Independent contributions form an ordered group priority list.
Facilitation
Nominal Group Technique
Purposedifferent
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.When a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List.When loud voices could dominate a round, Nominal Group Technique protects individual thinking time from group effects. It collects ideas separately first and only then enables shared weighting.
Complexitydifferent
LowLowMedium
Timedifferent
45-90 min30-60 min60-120 min
Participantsdifferent
2-83-105-12
Formatdifferent
Workshop + asyncWorkshop + asyncWorkshop
Outputdifferent
Assumption List, Critical Assumptions, Learning PlanRisk Matrix, Top Risk ListRanked Ideas, Clarified Options, Group Priority
Tagsno overlap
AssumptionsRiskDecisionDiscovery
RiskDecisionPrioritizationAssessment
FacilitationPrioritizationVotingInclusion
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Often compared together

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

Paper illustration of shared options, independently placed voting dots, and a highlighted shortlist.
Facilitation
Dot Voting
Paper illustration for 1-2-4-All.
Facilitation
1-2-4-All
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 Cost of Delay with its method-specific working model.
Delivery
Cost of Delay