# 8.12.3.25 IfcPreDefinedItem

AbRV ⓘ

ABSTRACT This definition may not be instantiated

## 8.12.3.25.1 Semantic definition

A pre defined item is a qualified name given to a style or font which is determined within the data exchange specification by convention on using the Name attribute value (in contrary to externally defined items, which are agreed by an external source).

## 8.12.3.25.4 Formal representation

ENTITY IfcPreDefinedItem
ABSTRACT SUPERTYPE OF (ONEOF
(IfcPreDefinedColour
,IfcPreDefinedCurveFont
,IfcPreDefinedTextFont))
SUBTYPE OF (IfcPresentationItem);
Name : IfcLabel;
END_ENTITY;