ISO/TR 12888:2011描述了被测特性为连续变量的测量过程。本文件未处理相关特性为属性（即通过/失败）的测量过程。 ISO/TR 12888:2011提供了简单测量系统的示例，并给出了工业中使用的可用结果，其中有两个主要因素导致测量结果的变化，例如操作员或估价师之间以及操作员或估价师内部的变化。

ISO/TR 12888:2011 describes the measurement process where the characteristic(s) being measured is a continuous variable. Measurement processes where the characteristic(s) of interest is an attribute (i.e. pass/fail) are not treated in this document. ISO/TR 12888:2011 provides examples of simple measurement systems and gives usable results as used in industry where there are two major factors contributing to the variation of the measurement results, such as variation between operators or appraisers and within operators or appraisers.