Allowed values (enum constraints)
bSDD data type, e.g. "Boolean", "Real", "String"
Human-readable description
Whether this property is from the IFC standard dictionary
Property name, e.g. "IsExternal"
Name of the property set this property belongs to (null = entity attribute)
Units (e.g. ["m"], ["m²"])
URI of the property definition
A property definition from the bSDD for a given IFC class