Klasifikacije v simetrični input-output tabeli se skladajo s klasifikacijami v tabelah ponudbe in porabe, saj je prva tabela transformacija drugih (razen seveda klasifikacije po dejavnostih/homogenih panogah).
The classifications in the symmetric input-output table coincide with those in the supply and use tables, as the former is a transformation of the latter (except of course the classification by industry/homogeneous branch).