ABS Nautical Systems (NS), a division of ABS, a classification society, announced a series of senior management changes and established a new client-centered operational structure to strengthen its portfolio of fleet management software services for the marine and offshore industries. Karen Hughey, who joined NS in January as Senior Vice President, has been appointed President and Chief Operating Officer, replacing Jack Kitchura who has retired after leading Nautical Systems for the past ten years. Hughey had previously served as Vice President of Application Development for ABS.