| Class |
| Diagram | Synonym |
| SuperClass | Object |
| SubClass | DiagramType |
| SubClass | RelationType |
| SubClass | SubClass |
| maps to | RDFS Class |
| has a | URN |
| is part of | Ontology |
| consists of | Attribute |
| edited by | Class Editor |
| is class of | Instance* |
| inv maps to a single | Synonym |
| inv maps to multiple | Homonym |
| displayed by | Node |
| displayed by | Explorer |
| is part of | SemTalk Model |