The U.S. Navy has given its final approval for Lockheed Martin to proceed with the integration and shipboard installation of the world's first, fully-open architecture Aegis weapon system for a major surface warship. February 2008. upgrades to the weapon system as they are developed in the future. with Aegis Open Architecture over the next 10 years. Aegis-equipped Arleigh Burke destroyers. hardware and open system software. through the integration of separately developed third party products. system. and control system. globe with more than 20 additional ships planned or under contract. Australia, Japan, Norway, South Korea and Spain.