Layer 2 network map, layer 3 network map, communication paths (layer 4), Switch port allocations, DHCP server map
VMware, XEN and HyperV structure maps
Exchange communication and site map,
ER diagrams for SQL Server databases
Logical structure, physical structure, group policies, visualization of group nesting
Rack diagrams, cabling maps
Communication paths, permission origin in file systems, Microsoft Exchange, and Microsoft SharePoint, system interdependencies (correlations)