Evolutionary Acquisition and Spiral Development in DOD Programs: Policy Issues for Congress [Updated May 17, 2006] [open pdf - 49KB]
From the Summary: "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."
CRS Report for Congress, RS21195