Embodiments of the present invention provide systems and methods of managing hierarchical reference data. According to one embodiment of the present invention, a hierarchical data management program can maintain a master set of reference data corresponding to the reference data being managed. From the...http://www.google.com.hk/patents/US8073814?utm_source=gb-gplus-share專利 US8073814 - Hierarchical reference data management system and method