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| Criterion |  Operations 8D Problem Solving |  Product Discovery Concierge MVP |  Decision Making Assumption Surfacing |  Operations Kepner-Tregoe |
|---|---|---|---|---|
Purposedifferent | 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. | When an idea can first fail or grow through genuine hands-on support, it relies on manual work instead of automation. It shows whether user value holds up even under manual execution. | 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. | 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. |
Complexitydifferent | High | Medium | Low | High |
Timedifferent | 1-6 Wochen | 1-4 Wochen | 45-90 min | 2-8 h |
Participantsdifferent | 4-10 | 3-10 Kunden | 2-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Concierge Learnings, Service Blueprint, MVP Risks | Assumption List, Critical Assumptions, Learning Plan | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | QualityProblem solvingRoot cause | MVPValidationServiceDiscovery | AssumptionsRiskDecisionDiscovery | Problem solvingRoot causeDecisionOperations |