HP-UX 11i v3 comes in four different Operating Environments (OE) packages designed to ease your high availability UNIX experience: Base OE (BOE), Virtualisation Server OE (VSE-OE), High Availability OE (HA-OE), and Data Center OE (DC-OE)
which combines the VSE and HA OEs. These software stacks run on the full range of Integrity systems and come pre-integrated and tested by HP engineering, so you can be assured that your UNIX computing environment is complete and built to work together. You don´t need to buy and integrate the software yourself, or obtain costly external services and manage the additional software and its support separately.
For more details on these operating environments and when to use them, please refer to the HP-UX 11i v3 Operating Environments data sheet
(PDF 376 KB), Mar 2013