"Functional" classifications are designed to classify certain transactions of producers and of three institutional sectors, namely household, general government and non-profit institutions serving households. They are described as "functional" classifications because they identify the "functions"- in the sense of "purposes" or "objectives"- for which these groups of transactors engage in certain transactions.
The classifications concerned are:
- Classification of individual consumption by purpose (COICOP),
- Classification of the functions of government (COFOG),
- Classification of the purposes of non-profit institutions serving households (COPNI) and,
- Classification of outlays of producers by purpose (COPP).