# YANG NetConf/YANG is defined by O-RAN Alliance Interface Spcification v2 as protocol for Configuration Management for FCAPS functions (accept the A: Accounting) for the disaggregated RAN. As some of the data models in working progress subfolders are used to distinglish "working" and "published". The folder "sim" is used exclusively by the [O-RAN-SC SIM project](https://wiki.o-ran-sc.org/display/SIM/SIM?src=sidebar) project.