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Criterion
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
Affinity Diagramming
UX Research
Affinity Diagramming
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 research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer.
Complexitysame
LowLow
Timedifferent
45-90 min45–90 min
Participantsdifferent
2-83-10
Formatdifferent
Workshop + asyncWorkshop
Outputdifferent
Assumption List, Critical Assumptions, Learning PlanTheme clusters, Insight statements, Opportunity areas
Tagsno overlap
AssumptionsRiskDecisionDiscovery
SynthesisQualitativeRoot cause
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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
Empathy Mapping
UX Research
Empathy Mapping
Paper illustration for Failure Mode and Effects Analysis
Operations
Failure Mode and Effects Analysis