Research and Development category 03 under Major Force Program 6 of the Future Years Defense Program (FYDP). Includes all efforts that have moved into development and integration of hardware for field experiments and tests. Projects in this category have a direct relevance to identified military needs. Advanced Development is system specific and includes Advanced Technology Development (ATD) used to demonstrate general military utility or cost-reduction potential of technology when applied to different types of military equipment or techniques. Efforts include evaluation of synthetic environment and proof-of-principle demonstrations in field exercises to evaluate system upgrades or provide new operational capabilities. Projects do not have to lead to subsequent development or procurement phases. Program/budget justification must identify rough order of magnitude estimates of potential additional development and production costs consistent with DoD's full funding policy.