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| Criterion |  Product Discovery Jobs to Be Done |  Engineering Fault Isolation |  Operations Causal Factor Analysis |  Operations Change Analysis |
|---|---|---|---|---|
Purposedifferent | When switching motives and progress are unclear, it reconstructs the situation from real customer circumstances. It shows why a switch happens and what kind of progress is being sought. | 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. | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 1-3 Wochen | 30-180 min | 2-6 h | 45-120 min |
Participantsdifferent | 5-12 Interviews | 1-6 | 3-10 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Job Stories, Outcome Statements, Opportunity List | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | CustomerOutcomesNeeds | TroubleshootingDiagnosisEngineering | CausalityIncidentRoot causeTimeline | ChangeRoot causeTroubleshootingComparison |