NCIt definition : A form of encryption where identifiable parts of personal data are replaced with unique
artificial identifiers in order to de-identify the data within a specific context.;
Alternative definition : CDISC-GLOSS: A privacy preservation technique that both replaces the direct association
with a data subject and adds an association between a particular set of characteristics
relating to the data subject and one or more pseudonyms. Typically, pseudonymization
is implemented by replacing direct identifiers (like the subject's name) with a pseudonym
such as a randomly generated value. [ISO/TS 25237:2008]; MRCT-Ctr: Replace personal details with a code so that data are protected. (https://mrctcenter.org/glossaryterm/pseudonymized/);