Authors: Michael Witt, Aswathy Sivaram

The Open Archives Initiative Object Reuse and Exchange (ORE) defines a standard for the description and exchange of aggregations of Web resources. Work is currently underway to develop an OAI-ORE implementation for HUBzero as part of the Open Parks Grid, which is a hub launched by Clemson University in collaboration with the National Parks Service, Purdue University, and the Georgia, North and South Carolina State Parks to serve the parks professionals community. A brief tutorial on ORE will introduce its underlying technology (e.g., web architecture, Resource Description Framework, Linked Data), abstract data model, and how to express, serialize, and expose ORE resource maps. Our project design, implementation ideas, and project status will be presented. Two use-cases will be presented as examples and as applications that will be developed and released as free, open source software in the future. In the first use-case, ORE will be used to replicate the digital objects, metadata, and semantics of the Open Parks Grid to a Fedora preservation repository. In the second use-case, a new tool will be developed to enable HUB users to create their own custom collections of digital objects from the web and publish them on the HUB as ORE aggregations. A goal of sharing and discussing this project in its early stages is to identify and collaborate with other HUB developers who are interested in ORE and other Semantic Web technologies. This project is sponsored by the Institute of Museum and Library Services (IMLS LG-05-10-0117-10).

Michael Witt (website, http://www.lib.purdue.edu/research/witt) is an assistant professor of library science and Interdisciplinary Research Librarian at Purdue University. His interests include research data curation and the development of new tools, protocols, and practices for librarians and the producers and users of digital information in non-traditional formats and platforms such as cyberinfrastructure. He is affiliated with the Distributed Data Curation Center (D2C2) of the Purdue University Libraries.

Aswathy Sivaram is a Masters candidate in the School of Civil Engineering at Purdue University. She is a Graduate Research Assistant, working with Dr. Michael Witt on exposing hub objects as resource maps. Her interests include designing and building low cost housing, geophysical modeling of soil, and programming.

Researchers should cite this work as follows:

• Michael Witt; Aswathy Sivaram (2011), "Exposing HUB Objects for Aggregation Using OAI-ORE and Linked Data," https://help.hubzero.org/resources/439.

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