The medical mission of the Department of Defense (DoD) is: (a) to maintain and provide readiness, to provide medical services and support to the armed forces during military operations; and (b) to provide medical services and support to members of the armed forces, their dependents, and other beneficiaries entitled to DoD health care. The Military Health Services System (MHSS) Automated Information System (AIS) program is designed to provide health care professionals, managers and administrators at all levels with reliable, responsive, high-quality electronic data integration and information support needed to effectively treat patients and manage the cost and quality of health care delivery. The MHSS AIS program consists of existing or planned medical AISs representing DoD candidate migration systems, Service-wide systems, and Service-specific systems, as well as overall program infrastructure support activities.