Annex A aims to support the mapping of categories of the three core classifications of SHA 2011 with international economic classifications used within the frameworks of the System of National Accounts (SNA) and the European System of Social Protection Statistics (ESSPROS).
Each of the three core classifications of SHA 2011 ‐ ICHA‐HC, ICHA‐HP and ICHA‐HF ‐ focuses on specific characteristics of actors (organisations) and transactions that differ from those of the other classifications. This annex briefly
discusses some of the conceptual issues involved and then presents correspondence tables with the classification categories of the SNA and ESSPROS. Despite similar terms and some overlap with the main categories, there is no one‐to‐one relationship between the classifications
of SHA and those of the two other statistical systems. Both users and compilers should also be aware that the international classifications undergo regular revisions and can be differently applied by countries. The same holds for the actors (organisations) used as statistical
units in SHA and the economic entities (institutional units) used in SNA. The cross‐tables of this annex, therefore, can only serve as a tentative guide to map the different classifications. Furthermore, the classifications discussed are not
the only available classifications in the statistical systems of the countries.