Definition from buildingSMART: This objectified relationship
(IfcRelDefinesByType) defines the relationships between an object type
The IfcRelDefinesByType is a 1-to-N relationship, as it allows
for the assignment of one type information to a single or to many objects.
Those objects then share the same object type.
HISTORY: New entity in IFC
|| Reference to the type (or style) information for that object or set of objects.