DIMHRS was being developed through the use of a commercial-off-the-shelf (or COTS) based enterprise system. The DoD procured PeopleSoft as the COTS solution to provide the basic database software for DIMHRS. The DIMHRS Enterprise Program Management Office (EPMO) under the oversight and direction of the Business Transformation Agency (BTA) will oversee the developer implementor, Northrop Grumman Information Technology, through the key phases of the DIMHRS lifecycle, to include: design and build, system development and demonstration, developmental test and evaluation, operational test and evaluation, fielding decision, deployment and training.