An information network overlay architecture for the NSDL

Authors:
Carl Lagoze;Dean B. Krafft;Susan Jesuroga;Tim Cornwell;Ellen J. Cramer;Edwin Shin
Affiliations:
Cornell University, Ithaca, NY;Cornell University, Ithaca, NY;UCAR-NSDL, Boulder, CO;Cornell University, Ithaca, NY;Cornell University, Ithaca, NY;Cornell University, Ithaca, NY
Venue:
Proceedings of the 5th ACM/IEEE-CS joint conference on Digital libraries
Year:
2005

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Curriculum overlay model for embedding digital resources

Proceedings of the 8th ACM/IEEE-CS joint conference on Digital libraries

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Abstract

We describe the underlying data model and implementation of a new architecture for the National Science Digital Library (NSDL) by the Core Integration Team (CI). The architecture is based on the notion of an information network overlay. This network, implemented as a graph of digital objects in a Fedora repository, allows the representation of multiple information entities and their relationships. The architecture provides the framework for contextualization and reuse of resources, which we argue is essential for the utility of the NSDL as a tool for teaching and learning.