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| Criterion |  Operations 5 Whys |  Product Discovery Assumption Mapping |
|---|---|---|
Purposedifferent | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Medium |
Timedifferent | 15-30 min | 45-60 min |
Participantsdifferent | 2-6 | 2-8 |
Formatdifferent | Workshop | Workshop + async |
Outputdifferent | Root cause notes, Countermeasures | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | Root causeIncidentLeanProblem solving | AssumptionsRiskExperimentsValidation |
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