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| Criterion |  Product Discovery Jobs to Be Done |  Operations 5 Whys |  Operations Kepner-Tregoe |  Operations Barrier 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. | 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. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | Medium | Low | High | Medium |
Timedifferent | 1-3 Wochen | 15-30 min | 2-8 h | 2-4 h |
Participantsdifferent | 5-12 Interviews | 2-6 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Job Stories, Outcome Statements, Opportunity List | Root cause notes, Countermeasures | Problem Analysis, Decision Analysis, Risk Plan | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | CustomerOutcomesNeeds | Root causeIncidentLeanProblem solving | Problem solvingRoot causeDecisionOperations | Root causeSafetyIncident |