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Selected:Assumption SurfacingCurrent Reality TreeFailure Mode and Effects Analysis8D Problem Solving
| Criterion |  Decision Making Assumption Surfacing |  Systems Thinking Current Reality Tree |  Operations Failure Mode and Effects Analysis |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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 | Low | High | High | High |
Timedifferent | 45-90 min | 2-6 h | 2-6 h | 1-6 Wochen |
Participantsdifferent | 2-8 | 3-8 | 3-10 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Assumption List, Critical Assumptions, Learning Plan | Current Reality Tree, Core Problems, Intervention Ideas | FMEA Table, Risk Priority, Mitigation Actions | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | Systems thinkingRoot causeConstraintsCausality | RiskQualityOperationsRoot cause | QualityProblem solvingRoot cause |