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| Criterion |  Engineering Fault Isolation |  UX Design Lean UX Canvas |  Product Discovery Learning Card |  Product Discovery Hypothesis Prioritization Canvas |
|---|---|---|---|---|
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. | The Lean UX Canvas helps clarify user behavior, touchpoints, and concept decisions. It makes assumptions and desired outcomes visible and captures the result as a completed canvas, hypothesis list, and first experiment. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 30-180 min | 2-3 h | 25-40 min | 60-90 min |
Participantsdifferent | 1-6 | 3-8 | 1-5 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Completed Lean UX Canvas, Hypothesis list, First experiment | Learning Card with evidence and next action | Prioritization Canvas, Hypothesis Backlog |
Tagsno overlap | TroubleshootingDiagnosisEngineering | CanvasHypothesisOutcomesDiscovery | ExperimentsValidationDiscoveryLearning | ExperimentsPrioritizationDiscoveryHypothesis |