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| Criterion |  UX Design Service Blueprinting |  Decision Making Delphi Method |  Decision Making Assumption Surfacing |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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. | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | High | High | Low | Medium |
Timedifferent | 0.5-2 Tage | 1-4 Wochen | 45-90 min | 45-60 min |
Participantsdifferent | 6-12 | 6-30 Experten | 2-8 | 2-8 |
Formatdifferent | Workshop | Async | Workshop + async | Workshop + async |
Outputdifferent | Service Blueprint, Fail Points, Ownership Map | Expert Forecast, Consensus Range, Assumption Notes | Assumption List, Critical Assumptions, Learning Plan | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | Service designOperationsJourneyBlueprint | ForecastingExpertsDecisionStrategy | AssumptionsRiskDecisionDiscovery | AssumptionsRiskExperimentsValidation |