The SNA network discovery is carried out using /PARMS group AUTOSNACNTL.
OS: z/OS
On OML $RSNDPR (Network Automation Discovery Process), near line 360, the comment says:
/*****************************************************************/
/* WE DO NOT WANT TO DISCOVER APPL MODELS */
/*****************************************************************/
So, application models and applications based on models (dynamic applications) are intentionally not discovered, because they cannot
be monitored reliably, based on the received VTAM message traffic.
Please see additional information regarding the discovery of dynamic applications at this NetMaster 12.2 tech docs topic: