The WildFly Model References have moved to the WildFly documentation as of WildFly 19. Each model reference will be located under the versions documentation.
This site provides reference for the management model for the WildFly application server, as well as other application servers in the same family such as JBoss EAP 6+, JBoss EAP7 & JBoss AS 7
WildFly is the next generation of the JBoss AS application server.
JBoss EAP 7 is Red Hat's commercial offering based on WildFly code base.
JBoss EAP 6 is Red Hat's commercial offering based on the AS7 and WildFly code base.