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Selected:Fault IsolationHypothesis-Driven TroubleshootingLean UX CanvasHypothesis Prioritization Canvas
| Criterion |  Engineering Fault Isolation |  Engineering Hypothesis-Driven Troubleshooting |  UX Design Lean UX Canvas |  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. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | 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. | 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. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-180 min | 30-240 min | 2-3 h | 60-90 min |
Participantsdifferent | 1-6 | 1-6 | 3-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Completed Lean UX Canvas, Hypothesis list, First experiment | Prioritization Canvas, Hypothesis Backlog |
Tagsno overlap | TroubleshootingDiagnosisEngineering | TroubleshootingProblem solvingDiagnosis | CanvasHypothesisOutcomesDiscovery | ExperimentsPrioritizationDiscoveryHypothesis |