| Entité | Attributs |
|---|---|
| IfcPropertyAbstraction | HasExternalReferences |
| IfcProperty | Name, Description, PartOfPset, PropertyForDependance, PropertyDependsOn, PartOfComplex, HasConstraints, HasApprovals |
| Nom | Type |
|---|---|
| UpperBoundValue | IfcValue |
| LowerBoundValue | IfcValue |
| Unit | IfcUnit |
| SetPointValue | IfcValue |