Definition from IAI: The IfcRoot is the most abstract and
root class for all IFC entity definitions that roots in the kernel or in
subsequent layers of the IFC object model. It is therefore the common supertype
all all IFC entities, beside those defined in an IFC resource schema.
The IfcRoot assigns the globally unique ID, and the ownership and
history information to the entity. In addition it may provide for a name and a
description about the concepts.
HISTORY New entity in IFC
ISSUE See issue and change log for changes made in IFC Release
1.5 and 2x.
|| Assignment of a globally unique identifier within the entire software world.
|| Assignment of the information about the current ownership of that object, including owning actor, application,
local identification and information captured about the recent changes of the object, NOTE: only the
last modification in stored.
|| Optional name for use by the participating software systems or users. For some subtypes of IfcRoot the
insertion of the Name attribute may be required. This would be enforced by a where rule.
|| Optional description, provided for exchanging informative comments.