German to English Art/Literary Philosophy Decision theory

The whole sentence reads: 'Als explanans der Veränderung eines Systems taugt der Verweis auf solche Entscheidungen aber nur, wenn sie nicht mit dessen Systemstruktur zusammenfallen.' This is a philosophical book by a Swiss academic author. So far I have: 'As the explanans for a change in a system, however, ????????? only if they do not fit in with its systemic structure.'
I have not come across this use of 'taugen auf' before.