The DBAdmin system at the core is just a simple database an can be used in and of itself. There are approximately 100+ tables that make up the Oracle DBAdmin database and it currently runs on a VM and non-RAC version of Oracle. Each database is accessed by the Oracle database through the use of gateways that allow seemless access to the database(s) housed on remote systems. A free web-based application environment that comes imbedded in every Oracle database since 10g called APEX, was used to provide a reporting and user friendly GUI to the data. Currently this tool only runs on the Oracle database platform.
Interaction between various scripts and other hosts, as well as other databases can easily interact with Oracle as such interactions between Oracle and other platforms are very common and easily configured.