<HTML> <HEAD> <TITLE>PVVMUD - World server</TITLE> <LINK REL=STYLESHEET HREF="/pvvmud/pvvmud.css" TYPE="text/css"> </HEAD> <BODY> <H1>World server</H1> <H2>ERD</H2> <IMG SRC="erd_worldsrv.png"> <H2>Object hierarchy</H2> <IMG SRC="objecthierarchyworld.png"> </BODY> </HTML>