ITG has sole authority to establish a trust relationship between the master domains and another domain on the Microsoft corporate network. ITG can administer all servers running Windows NT Server in a trust relationship within the Microsoft domains structure. Microsoft ITG uses the following criteria to establish a trust relationship with a second-tier domain.
For example, Apps-Word, Apps-Excel, Sys-WFW, or Sys-WinNT are second-tier domains.
For example, USA-Atlanta, USA-Chicago, FRA-Paris, and GER-Munich are resources domains.
This enables ITG to perform administrative duties and assist the domain administrator when needed. It also enables ITG to perform backups of domain servers.