	Background

		Origin and Aims of EA/SD

DOD in 2001 adopted a new approach for developing new weapon systems, called evolutionary acquisition with spiral development (EA/SD), as its preferred standard. EA/SD, which is referred to informally (though not entirely accurately) as spiral development, is an outgrowth of the defense acquisition reform movement of the 1990s, and is part of DOD's effort to make its acquisition system more responsive to rapid changes in threats, technology, and warfighter needs. Issues for Congress

EA/SD poses potential issues for Congress regarding DOD and congressional oversight of weapon acquisition programs.
The Department of Defense (DOD) in 2001 adopted a new approach for developing major weapon systems, called evolutionary acquisition with spiral development (EA/SD), as its preferred standard. EA/SD is intended to make DOD's acquisition system more responsive to rapid changes in military needs. EA/SD poses potentially important challenges for Congress in carrying out its legislative functions, particularly committing to and effectively overseeing DOD weapon acquisition programs. This report will be updated as events warrant.