Future Years Defense Program (FYDP) A massive DoD database and internal accounting system that summarizes forces and resources associated with programs approved by the Secretary of Defense (SECDEF). Its three parts are the organizations affected, appropriations accounts (Research, Development, Test and Evaluation (RDT&E), Operation and Maintenance (O&M), etc.), and the 11 major programs (strategic forces, mobility forces, R&D, etc.). The FYDP allows a crosswalk between DoD s internal system of accounting via 11 major programs and congressional appropriations. The primary data element in the FYDP is the Program Element (PE). The FYDP is updated twice during an On-Year Planning, Programming, Budgeting and Execution (PPBE) Process cycle: submission of the combined Program Objectives Memorandum (POM)/Budget Estimate Submission (BES) (usually August/September), and submission of the President s Budget (PB) (early February the year following). It is also updated by Program Change Proposals (PCPs) during the Off-Year PPBE cycle. See Major Program.