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| Criterion |  Engineering Fault Isolation |  Growth Hooked Model |  Operations 5 Whys |
|---|---|---|---|
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 Hooked Model helps clarify engagement loops, user behavior, and experiments. It makes repeat behavior measurable and captures the result as a hooked loop, trigger map, and reward design. | 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. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 30-180 min | Multiple workshops over several weeks | 15-30 min |
Participantsdifferent | 1-6 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Hooked loop, Trigger map, Reward design, Ethics check | Root cause notes, Countermeasures |
Tagsno overlap | TroubleshootingDiagnosisEngineering | GrowthBehaviorRetention | Root causeIncidentLeanProblem solving |
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