When a Datum Is Not a Measurement: A Doctrinal When a Datum Is Not a Measurement: A Doctrinal Account of Metrological Traceability in Engineering Data Systems of Metrological Traceability in Engineering Data Systems. JEIDS. 2026;1(1):51-57. Accessed October 10, 2026. https://ijpress.com/jeids/article/view/88