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| Criterion |  Engineering Fault Isolation |  Knowledge Modeling Knowledge Mapping |  Product Discovery Hypothesis Prioritization Canvas |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | Knowledge Mapping makes knowledge, gaps, and transfer paths visible across a field. It fits when expertise should not just exist but also be findable and transferable. | When many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-180 min | 1-3 h | 60-90 min | 45-60 min |
Participantsdifferent | 1-6 | 3-12 | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Knowledge Map, Critical Knowledge Areas, Transfer Plan | Prioritization Canvas, Hypothesis Backlog | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | TroubleshootingDiagnosisEngineering | KnowledgeMappingRisk | ExperimentsPrioritizationDiscoveryHypothesis | AssumptionsRiskExperimentsValidation |