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| Criterion |  UX Design Service Blueprinting |  Decision Making Three-Point Estimation |  Operations 8D Problem Solving |
|---|---|---|---|
Purposedifferent | 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. | A single estimate for effort, time, or risk often looks too smooth for the real uncertainty behind it. It separates options, evaluation criteria, and open risks. The result is captured as a Three-Point Estimate, Risk Range, and Assumption Notes. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | High | Medium | High |
Timedifferent | 0.5-2 Tage | 10-30 min je Item | 1-6 Wochen |
Participantsdifferent | 6-12 | 1-8 | 4-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Service Blueprint, Fail Points, Ownership Map | Three-Point Estimate, Risk Range, Assumption Notes | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Service designOperationsJourneyBlueprint | EstimationUncertaintyForecasting | QualityProblem solvingRoot cause |
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