For a major global payments processor we executed a detailed analysis on their core transaction processing technology architecture to establish a comprehensive requirements definition for a 6-year, multi-phase, EFT payments platform modernization project. Phase 1 of the project involved consolidation of two discrete debit platforms to a third one, and included moving 2 dozen EFT network links, thousands of ATMs, and hundreds of core banking interfaces from the deprecated platforms to the target platform. It also involved creation of advanced API middleware technology and CSS based GUIs for uniform user access to platform functionality.