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| Criterion |  Systems Thinking Future Reality Tree |  Decision Making Pre-Mortem |  Systems Thinking Current Reality Tree |  Decision Making Constraint Analysis |
|---|---|---|---|---|
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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | 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. | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. |
Complexitydifferent | High | Low | High | Low |
Timedifferent | 2-4 h | 20–45 min | 2-6 h | 30-90 min |
Participantsdifferent | 3-8 | Small cross-functional group | 3-8 | 2-8 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Risk list, Mitigation plan, Assumption log | Current Reality Tree, Core Problems, Intervention Ideas | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | RiskDecisionFailurePlanning | Systems thinkingRoot causeConstraintsCausality | ConstraintsDecisionPlanningOptions |