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| Criterion |  Systems Thinking Future Reality Tree |  Decision Making Assumption Surfacing |  Operations 8D Problem Solving |
|---|---|---|---|
Purposedifferent | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | 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 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 | Low | High |
Timedifferent | 2-4 h | 45-90 min | 1-6 Wochen |
Participantsdifferent | 3-8 | 2-8 | 4-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Assumption List, Critical Assumptions, Learning Plan | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | AssumptionsRiskDecisionDiscovery | QualityProblem solvingRoot cause |
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