| Entité | Attributs |
|---|---|
| IfcRoot | GlobalId, OwnerHistory, Name, Description |
| IfcObject | ObjectType |
| IfcProduct | ObjectPlacement, Representation |
| IfcStructuralActivity | AppliedLoad, GlobalOrLocal |
| IfcStructuralAction | DestabilizingLoad |
| IfcStructuralCurveAction | ProjectedOrTrue, PredefinedType |