IfcDataOriginEnum

MEASURED: The origin of the time series data is a measurement device.
PREDICTED: The time series data are a prediction.
SIMULATED: The origin of the time series data is a simulation.
USERDEFINED: User-defined time series data origin.
NOTDEFINED: The origin of the time series data is undefined.

IfcDataOriginEnum

Definition from IAI: The IfcTimeSeriesDataGeneratedByEnum identifies the origin of the time series data:

HISTORY: New enumeration in IFC 2x2.

EXPRESS specification:

TYPE IfcDataOriginEnum = ENUMERATION OF

(	MEASURED, PREDICTED, SIMULATED, USERDEFINED, NOTDEFINED);

END_TYPE;