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| Criterion |  Decision Making Three-Point Estimation |  Decision Making PERT Estimation |  UX Design Service Blueprinting |  UX Design Customer Journey Canvas |
|---|---|---|---|---|
Purposedifferent | 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. | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | 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. | When a journey needs to be understood across several phases, it arranges experience, touchpoints, and opportunities into one picture. It makes gaps and friction along the user path clear. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 10-30 min je Item | 15-45 min | 0.5-2 Tage | 1-3 h |
Participantsdifferent | 1-8 | 1-8 | 6-12 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Three-Point Estimate, Risk Range, Assumption Notes | PERT Estimate, Expected Value, Risk Notes | Service Blueprint, Fail Points, Ownership Map | Customer Journey Canvas, Pain Points, Experience Opportunities |
Tagsno overlap | EstimationUncertaintyForecasting | EstimationUncertaintyRisk | Service designOperationsJourneyBlueprint | JourneyCustomerService designCanvas |