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Criterion
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
Paper illustration for PERT Estimation.
Decision Making
PERT Estimation
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.On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes.
Complexitydifferent
LowMedium
Timedifferent
45-90 min15-45 min
Participantsdifferent
2-81-8
Formatsame
Workshop + asyncWorkshop + async
Outputdifferent
Assumption List, Critical Assumptions, Learning PlanPERT Estimate, Expected Value, Risk Notes
Tags1 shared
AssumptionsRiskDecisionDiscovery
EstimationUncertaintyRisk
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Often compared together

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

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
Paper illustration for Dot Estimation.
Facilitation
Dot Estimation
A hypothetical failure makes concrete risks, signals, and fitting mitigations visible.
Decision Making
Pre-Mortem