ABSTRACT
Lord Kelvin said, “To measure is to know,” and “If you can not measure it, you can not improve it.” In fact, it is not possible to really know what is manufactured until it is measured. This has been a particular challenge in micro/mesoscale manufacturing because development of production processes has considerably outpaced development of measurement processes. Decisions that need to be made regarding a part or product being manufactured are based on measurements. These cannot be informed decisions if one does not have condence in, or does not fully understand, the uncertainty of the measurement process.
