Diane Hillmann, currently Director of Metadata Initiatives for the Information Institute of Syracuse (formerly Research Librarian, Cornell University Library and Director of Library Services and Operations of the National Science Digital Library (NSDL)) has been involved with Dublin Core since its inception. She is the editor of "Using Dublin Core," former administrator of the AskDCMI Service, co-moderator of the DC Education Community, and former member of the DCMI Usage Board. She is active in the library standards community, having served several terms on the MARC Standards Advisory Committee (MARBI) as a liaison from the law library community and as a LITA representative. She currently represents the Dublin Core Metadata Initiative on the ALA Committee on Cataloging: Description and Access (CC:DA) discussing the new Resource Description and Access (RDA) standard [RDA]. In addition, she serves as the Standards Coordinator for the Library Information Technology Association (a division of the American Library Association) and was recently appointed to the NISO Content and Collection Management Topic Committee. While at NSDL she was responsible for the NSDL Metadata Primer and participated in the Digital Library Federation OAI and Shareable Metadata Best Practices Working Group. She was co-PI with Dr. Stuart Sutton for the first phase of the NSDL Registry and continues to work on registry development. Hillmann has worked extensively in digital library development for the past decade, and has brings important project management and metadata experience to MMA projects.

Jon Phipps is the Technical Lead/Designer of the NSDL Metadata Registry project (formerly located at Cornell University Library) and the PI of the recently concluded extension project. He has previously served the technical lead for the NSDL Core Integration Group at Cornell, where he was primarily responsible for the NSDL Collection Registration System and the Metadata Repository. He has been the Co-Moderator of the DC Registry Community since 2006, and is also a member of the Semantic Web Deployment Working Group, co-editor of the W3C "SKOS Use Cases and Requirements" note, and co-editor of the update to the W3C "Best Practice Recipes for Publishing RDF Vocabularies" technical report. Phipps brings both important technical skills in digital library development experience and a strong sense of how open participation can be built into software.

Major Papers

Analyzing Metadata for Effective Use and Re-Use

Naomi Dushay and Diane I. Hillmann. Paper presented at DC2003 conference, Seattle, Wa.

Abstract: Using a commercially available visual graphical analysis tool, the National Science Digital Library (NSDL) has developed techniques to expedite evaluation of large batches of metadata. These techniques allow efficient and thorough review of large quantities of XML metadata, thus enabling the focus of limited resources on evaluation and manipulation tasks that are most important in our context. In the NSDL, metadata is evaluated for aggregation, but these techniques are applicable to any situation where batches of metadata need to be evaluated. This paper discusses the motivations for this approach and the techniques themselves. Available at: hdl.handle.net—7896

Improving Metadata Quality: Augmentation and Recombination

Diane I. Hillmann, Naomi Dushay, and Jon Phipps. Paper presented at the DC2004 Conference, October 2004, Shanghai, China.

Abstract: Digital libraries have, in the main, adopted the traditional library notion of the metadata 'record' as the basic unit of management and exchange. Although this simplifies the harvest and re-exposure of metadata, it limits the ability of metadata aggregators to improve the quality of metadata and to share specifics of those improvements with others. The National Science Digital Library (NSDL) is exploring options for augmenting harvested metadata and re-exposing the augmented metadata to downstream users with detailed information on how it was created and by whom. The key to this augmentation process involves changing the basic metadata unit from 'record' to 'statement.' Available at: hdl.handle.net—7897

Orchestrating Metadata Enhancement Services: Introducing Lenny

Jon Phipps, Diane I. Hillmann, and Gordon Paynter. Paper presented at the DC2005 Conference, Sept. 2005, Madrid, Spain.

ABSTRACT: Harvested metadata often suffers from uneven quality to the point that utility is compromised. Although some aggregators have developed methods for evaluating and repairing specific metadata problems, it has been unclear how these methods might be scaled into services that can be used within an automated production environment. The National Science Digital Library (NSDL), as part of its work with INFOMINE, has developed a model of service interaction that enables loosely-coupled third party services to provide metadata enhancements to a central repository, with interactions orchestrated by a centralized software application. This application is launched by an editor, then works to define collections by requesting web services from allied projects. In this paper, the service orchestration process is described from both perspectives. Available at: arxiv.org—0501083 or International Journal of Metadata, Semantics and Ontologies, v. 1, issue 3, 2006, p. 189-197.

A Metadata Registry from Vocabularies UP: The NSDL Registry Project

Diane I. Hillmann, Stuart Sutton, Jon Phipps, Ryan Laundry. Paper presented at the DC2006 Conference, Oct. 2006, Manzanillo, Mexico.

Abstract: The NSDL Metadata Registry is designed to provide humans and machines with the means to discover, create, access and manage metadata schemes, schemas, application profiles, crosswalks and concept mappings. This paper describes the general goals and architecture of the NSDL Metadata Registry as well as issues encountered during the first year of the project's implementation. Available at: arxiv.org—0605111

Application Profiles: Exposing and Enforcing Metadata Quality

Diane I. Hillmann and Jon Phipps. Paper presented at the DC2007 Conference, Aug./Sept. 2007, Singapore.

Abstract: In this paper, we explore a range of issues yet to be addressed in the large-scale use of application profiles. While considerable attention has been paid to human-readable application profiles, there is a growing need for machine-readable application profiles that can support quality control mechanisms including, but not limited to, data validation. We examine these issues in the context of the evolving Semantic Web and the DCMI commitment to RDF and the challenges presented. We frame the discussion in terms of select functions to be served by application profiles and our notion of data profiles. While much remains to be done to address these issues, positive movement toward solutions is dependent on the appropriate framing of those issues in terms of the needs of large-scale applications such as metadata aggregators. Available at: hdl.handle.net—9371

Additional publications and presentations ...