Weapon Systems Acquisition: DOD Needs Better Planning to Attain Benefits of Modular Open Systems
GAO found that 14 of the 20 programs it reviewed reported implementing a MOSA to at least some extent.
Implementing a Modular Open Systems Approach in Department of Defense Programs
This guidebook provides the Department of Defense (DoD) community, including Military Services, civilians, and DoD support contractors with information to help ensure programs incorporate a modular open systems approach (MOSA) as part of the defense acquisition program life cycle.