亨利觀點：校正、迴歸與校正回歸

adjustment 是調整的意思。
在計量學（量測科學）上 calibration 才是校正。

校正：為指定條件下的操作，其在第一個步驟裡，建立一個(含有由量測標準提供量測不確定度之)量值和(含有量測不確定度之)對應指示間的關係；而在第二步驟裡，使用上述資訊從一個指示得到量測結果。

2.39 (6.11)
calibration 校正
operation that, under specified conditions, in a first step establishes a relation between the quantity values
with measurement uncertainties provided by measurement standards and corresponding indications with
associated measurement uncertainties and, in a second step, uses this information to establish a relation for
obtaining a measurement result from an indication
Note 1 A calibration may be expressed by a statement, calibration function, calibration diagram,
calibration curve, or calibration table. In some cases it may consist of an additive or multiplicative
correction of the indication with associated measurement uncertainty.
Note 2 Calibration should not be confused with adjustment of a measuring system, often mistakenly
called “self-calibration”, nor with verification of calibration.
Note 3 Often, the first step alone in the above definition is perceived as being calibration.

計量追溯(Metrological traceability)(VIM 3 第 2.41 節)：
計量追溯為量測結果之屬性，透過文件化之不間斷的校正鏈，使量測結果與參考基準有關聯；而鏈的每個環節均對量測不確定度有貢獻。
備註：VIM 3 第 2.4.1 條明列「參考基準」可以是「透過實際體現的量測單位定
義、內含量測單位以描述特殊量值的量測程序、亦或是量測標準。」
ISO/IEC 17025:2005[2]與 ISO 15189:2012[3]所稱「追溯」或「量測追溯」一詞與
VIM 的「計量追溯」相同，本政策則統一採用「計量追溯」一詞。