THE TASK ORDER REQUIRES THE BASE LINE OF DOD PURCHASE CARDS MAPS. IT INCLUDES CREATING NEW MESSAGE TYPES FOR NAVY PURCHASE CARD. IT WILL REQUIRE DETAILED COORDINATION WITH ALL EIGHT CONSUMING SYSTEM FUNCTIONAL AND TECHNICAL SUBJECT MATTER EXPERTS (SMES). THE US BANK 810R X12 (4010) AND 821 X12 (4010) IMPLEMENTATION CONVENTIONS (IC) DIFFER FROM THE CITI BANK ICS. THESE DIFFERENCES REQUIRE ADDITIONAL COORDINATION WITH NAVY CONSUMING SYSTEM SMES TO COMPLETE THE LOGICAL MAPPING AND IDENTIFY ADDITIONAL GEX REQUIREMENTS. SYSTEMS REQUIRING UNIQUE HEADER AND TRAILER RECORDS REQUIRE ADDITIONAL REQUIREMENTS DEFINITION, MAPPING, AND GEX CORE TEAM UPDATES TO ADD THE SHARED LIBRARIES TO THE GEX CORE SOFTWARE THAT ENABLES THE HEADER AND TRAILER RECORDS. ADDITIONAL FILE ROUTING, NAMING, REPORTING AND ADMINISTRATIVE REQUIREMENTS REMAIN IN THE DEVELOPMENT PROCESS.