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Selected:Assumption SurfacingAffinity DiagrammingFailure Mode and Effects AnalysisAssumption Mapping
| Criterion |  Decision Making Assumption Surfacing |  UX Research Affinity Diagramming |  Operations Failure Mode and Effects Analysis |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Low | High | Medium |
Timedifferent | 45-90 min | 45–90 min | 2-6 h | 45-60 min |
Participantsdifferent | 2-8 | 3-10 | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | Theme clusters, Insight statements, Opportunity areas | FMEA Table, Risk Priority, Mitigation Actions | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | SynthesisQualitativeRoot cause | RiskQualityOperationsRoot cause | AssumptionsRiskExperimentsValidation |