It can be argued that the study of pricing should precede the study of measurement, because the objective of measurement is to permit pricing to be done, and that one should therefore know how to measure it. As a matter of practical fact, the measurement and pricing processes are interdependent to such an extent that it is immaterial which is tackled first; ideally, they should be considered simultaneously. However, it is expedient to separate them for one important reason, i.e. measurements for a particular project do not change with respect to time whereas the costs associated with pricing change. If the project, for some reason, is taken up for execution, on a fairly later occasion, costs would have changed considerably and the pricing part alone, but not the measurements part of the estimate, needs to be revised.
Measurement is a relatively simple exercise - as compared to pricing. While measurement is almost totally based on almost frozen drawings and specifications, pricing involves consideration of large number of parameters. Measurement remain constant for a given project but pricing (especially, relating to labour and equipment) can vary from place to place and from time to time.
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