22. The medium of claim 9 , wherein one of the plurality of data values of the primary data stream, one of the plurality of data values of the low limit data stream, one of the plurality of data values of the high limit data stream and one of the plurality of data values of the target value data stream are each associated with a particular one of the plurality of time stamps and are recorded at a time represented by the particular one of the plurality of time stamps.
28. The medium of claim 22 , wherein the primary data stream is a data stream representing a measured value of a pump flow rate, a fluid level or a level of viscosity.