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| Criterion |  Engineering Fault Isolation |  UX Design Lean UX Canvas |  Engineering Hypothesis-Driven Troubleshooting |  Product Discovery Opportunity Solution Tree |
|---|---|---|---|---|
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. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | When discovery keeps swinging between goals, ideas, and learning loops, it creates clear steering logic. It connects the desired outcome, opportunities, and experiments into a legible structure. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-180 min | 2-3 h | 30-240 min | 1-2 h Setup, laufend |
Participantsdifferent | 1-6 | 3-8 | 1-6 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Completed Lean UX Canvas, Hypothesis list, First experiment | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Opportunity Solution Tree, Experiment Backlog, Learning Log |
Tagsno overlap | TroubleshootingDiagnosisEngineering | CanvasHypothesisOutcomesDiscovery | TroubleshootingProblem solvingDiagnosis | DiscoveryOutcomesExperimentsOpportunity |