Conference Paper

Architecting an extensible digital repository

Academic Technol., Tufts Univ., Medford, MA, USA;
DOI: 10.1109/JCDL.2004.1336088 Conference: Digital Libraries, 2004. Proceedings of the 2004 Joint ACM/IEEE Conference on
Source: DBLP

ABSTRACT The digital collection and archives (DCA) in partnership with Academic Technology (AT) at Tufts University developed a digital library solution for long-term storage and integration of existing digital collections, such as Perseus, TUSK, Bolles and Artifact. We describe the Tufts digital library (TDL) architecture. TDL is an extensible, modular, flexible and scalable architecture that uses Fedora at its core. The extensible nature of the TDL architecture allows for seamless integration of collections that may be developed in the future, while leveraging the extensive tools that are available as part of individual digital library applications at Tufts. We describe the functionality and implementation details of the individual components of TDL. Two applications that have successfully interfaced with TDL are presented. We conclude with some remarks about the future development of TDL.

1 Bookmark
  • [Show abstract] [Hide abstract]
    ABSTRACT: The synergies of numerous emerging trends such as the development of open standards and open source software, geometric growth of blogs and podcasts, peer-to-peer networking, cross discipline collaborations, etc. provide new directions for scholarship. Likewise, digital libraries and supporting technologies have now matured to the point where their contents are incorporating complex and dynamic resources and services. Powered by network capability and fuelled by digital developments, research is becoming more data intensive in almost every discipline. The rapid pace of development poses new threats and problems. Many of these innovations, for example, may have come at the expense of simplicity, sustainability, and other commonly understood applications in the life cycle management of digital resources. Based on the University of North Texas Libraries' “Portal to Texas History” implementation experiences, this paper provides a general overview on the emerging trends and innovative usage of digital library technologies. This paper provides an overall scenario in the areas of aggregating a variety of digital formats; deploying, maintaining, and archiving digital contents; and other innovative uses of digital library technologies.
    Proceedings of the American Society for Information Science and Technology 10/2006; 42(1).
  • Source
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Users expect applications to successfully cope with the expansion of information as necessitated by the continuous inclusion of novel types of content. Given that such content may originate from ‘not-seen thus far’ data collections and/or data sources, the challenging issue is to achieve the return of investment on existing services, adapting to new information without changing existing business-logic implementation. To address this need, we introduce DOLAR (Data Object Language And Runtime), a service-neutral framework which virtualizes the information space to avoid invasive, time-consuming, and expensive source-code extensions that frequently break applications. Specifically, DOLAR automates the introduction of new business-logic objects in terms of the proposed virtual ‘content objects’. Such user-specified virtual objects align to storage artifacts and help realize uniform ‘store-to-user’ data flows atop heterogeneous sources, while offering the reverse ‘user-to-store’ flows with identical effectiveness and ease of use. In addition, the suggested virtual object composition schemes help decouple business logic from any content origin, storage and/or structural details, allowing applications to support novel types of items without modifying their service provisions. We expect that content-rich applications will benefit from our approach and demonstrate how DOLAR has assisted in the cost-effective development and gradual expansion of a production-quality digital library. Experimentation shows that our approach imposes minimal overheads and DOLAR-based applications scale as well as any underlying datastore(s). Copyright © 2011 John Wiley & Sons, Ltd.
    Software Practice and Experience 01/2011; 41:1349-1383. · 1.01 Impact Factor


Available from