This package describes data values of something that can be measured or calculated - see the following figure.
This package contains types for data values (see following subclauses) and adds additional quality and error information to these types.
The “DataValue” class is an abstract class i.e. shall be specialised by other classes such as those given in this package. It provides the following quality and error information for each specialised data value:
Information on data error and reason for it
Accuracy and computation method
Number of input values used and number of incomplete inputs
Smoothing factor and standard deviation
Information on supplier calculated data quality (in percent)
A measured or calculated value of the application rate of a substance.
A measured or calculated value of direction as a bearing.
A measured or calculated value of direction as a point of the compass.
A measured or calculated value of distance in metres in a floating point format.
A measured or calculated value of road surface friction.
A measured or calculated value of distance in whole metres.
A measured or calculated value of concentration of a substance in kilograms per unit volume.
A measured or calculated value of concentration of a substance in micrograms per unit volume.
A measured or calculated value expressed as a percentage.
A measured or calculated value of the accumulation rate of precipitation.
A measured or calculated value of atmospheric pressure.
A measured or calculated value of speed.
A measured or calculated value of temperature.
A measured or calculated value of the flow rate of vehicles.
A measured or calculated value of wind speed.