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Criterion
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
Paper illustration for NoEstimates.
Agile
NoEstimates
Paper illustration for Wideband Delphi.
Decision Making
Wideband Delphi
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 estimating slows a team down more than it helps, it shifts the focus to flow, small slices, and real lead time. It sorts work by value, risk, and delivery ability. The result is captured as Throughput Data, Flow Forecast, and Slicing Rules.A single opinion rarely holds up for planning when the future is genuinely uncertain. It separates options, evaluation criteria, and open risks. The result is captured as an Estimate Range, Assumption Log, and Expert Consensus Notes.
Complexitydifferent
LowMediumHigh
Timedifferent
45-90 minlaufend1-4 h or multiple rounds
Participantsdifferent
2-82-124-12 Experten
Formatsame
Workshop + asyncWorkshop + asyncWorkshop + async
Outputdifferent
Assumption List, Critical Assumptions, Learning PlanThroughput Data, Flow Forecast, Slicing RulesEstimate Range, Assumption Log, Expert Consensus Notes
Tagsno overlap
AssumptionsRiskDecisionDiscovery
EstimationForecastingFlow
EstimationExpertsForecasting
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Methods with strong topical overlap with the current selection, not yet in the comparison.

Anonymous individual judgments pass through feedback loops to form a distribution.
Decision Making
Delphi Method
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