You can view your data with a derived nomenclature/version using automatic conversion system between several nomenclatures and versions in WITS. By choosing a common nomenclature/version for all selected years, countries and/or types of data, you can have a data consistent among several years, and/or countries and/or types of data. The Product Concordances tool provides the following information:
It indicates available derived nomenclatures for any native nomenclature
At the concordance level, the Total Rows information reveals the coverage of the concordance
It details matching product codes between the two selected nomenclatures. This information is helpful while working on a specific sector to obtain where products of interest are in a derived nomenclature.