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| Criterion |  Knowledge Modeling Competency Questions |  Systems Thinking Evaporating Cloud |  Systems Thinking Current Reality Tree |  Systems Thinking Future Reality Tree |
|---|---|---|---|---|
Purposedifferent | Competency Questions translate a domain model into concrete questions that it must be able to answer. The method keeps the model's scope clean and prevents pretty but useless structures. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | 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. | 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. |
Complexitydifferent | Medium | Medium | High | High |
Timedifferent | 2-4 h | 60-120 min | 2-6 h | 2-4 h |
Participantsdifferent | 2-8 | 2-8 | 3-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Competency Question Set, Required Concepts, Test Queries, Coverage Matrix | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Current Reality Tree, Core Problems, Intervention Ideas | Future Reality Tree, Negative Branches, Assumption List, Improved Injections |
Tagsno overlap | OntologyKnowledge graphScopeRequirementsSemantic | Theory of ConstraintsAssumptionsSystems thinking | Systems thinkingRoot causeConstraintsCausality | Theory of ConstraintsSystems thinkingChange |