Property name constraint
OptionaldataOptional data type constraint (e.g., "IFCLABEL", "IFCREAL")
OptionalinstructionsIDS 1.1 PREVIEW. Only set by parseIDS(xml, { preview: { ids11: true } }).
Property set name constraint
OptionaluriOn a requirement facet this is IDS 1.0 and parseIDS always reads it.
On an applicability or nested facet it is IDS 1.1 PREVIEW, only set by
parseIDS(xml, { preview: { ids11: true } }).
OptionalvalueOptional value constraint
Property facet - match by property set and property value