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| Criterion |  Operations 5 Whys |  Operations Kepner-Tregoe |  UX Design Service Blueprinting |
|---|---|---|---|
Purposedifferent | 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. | When a service experience is spread across several touchpoints, it brings frontstage and backstage together. It shows where user contact and internal responsibility must fit. |
Complexitydifferent | Low | High | High |
Timedifferent | 15-30 min | 2-8 h | 0.5-2 Tage |
Participantsdifferent | 2-6 | 2-8 | 6-12 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Root cause notes, Countermeasures | Problem Analysis, Decision Analysis, Risk Plan | Service Blueprint, Fail Points, Ownership Map |
Tagsno overlap | Root causeIncidentLeanProblem solving | Problem solvingRoot causeDecisionOperations | Service designOperationsJourneyBlueprint |
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