}}
=== MetaClass & MetaProperties ===
{{UMM|MetaProperties are assigned to a MetaClasses via relations}}
[[File:IL_DOM_012.png|thumb|220 px|alt=Relation MetaClass / MetaProperty|Relation MetaClass / MetaProperty]]
[[File:IL_DOM_010.png|thumb|220 px|alt=Usage MetaClass / MetaProperty|Usage MetaClass / MetaProperty]]
* a MetaProperty can be related to multiple MetaClasses
* be used multiple times for defining a MetaClass' structure
{{UMM|MetaProperties are assigned to a MetaClasses via relations}}
=== MetaClass & Inheritance ===