ADL-R: The CORDRA core The CORDRA project postulates an open, standards-based model for how to design and implement software systems for the purposes of discovery, sharing and reuse of learning content through the establishment of interoperable federations of learning content repositories. At the heart of this project lies the ability to build aggregated registries of content, repositories, registries and even federations. The initial building block of this self adapting highly scalable open standards based component is the ADL-R. This talk will describe the CORDRA project and how the ADL-R enable its core capabilities. We will also explore the characteristics of the ADL-R that make it a suitable match for the CORDRA needs, and how it integrates open standards to enable the collection, registration, indexing and aggregation of digital resources to make the CORDRA goals a reality. Henry Jerez holds a PhD. in Computer Engineering from the University of New Mexico where his research in the area of distributed Digital Object repositories, load balancing and wireless communications was funded by AISTI, Hewlett Packard, Microsoft and Sun Microsystems Latin America. Dr. Jerez has contributed to the area of digital libraries and Digital Object repository architecture as a member of the Prototyping team for the Research library at Los Alamos National Laboratory where he worked from 2002 to 2005 performing research and development in the new architecture for the LANL digital object architecture. Dr. Jerez has served as faculty member, conference reviewer, enterprise consultant and international advisor to several companies and universities across Latin and North America. His contributions to the fields of Digital libraries, Advanced Networks and Wireless communications are reflected in several conference and journal articles, international presentations and a book chapter.