5 research outputs found

    Current Developments and Future Trends for the OAI Protocol for Metadata Harvesting

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    The Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) has been widely adopted since its initial release in 2001. Initially developed as a means to federate access to diverse e-print archives through metadata harvesting and aggregation, the protocol has demonstrated its potential usefulness to a broad range of communities. Two years out from the release of the stable production version of the protocol (2.0), there are many interesting developments within the OAI community. Communities of interest have begun to use the protocol to aggregate metadata relative to their needs. The development of a registry of OAI data providers with browsing and searching capabilities as well as accessibility to machine processing is helping to provide a scalable solution to the question of who is providing what via the OAI protocol. Work is progressing on the technical infrastructure for extending the OAI protocol beyond the traditional harvesting structure. However, serious challenges, particularly for service providers, still exist. This paper provides an overview of the current OAI environment and speculates on future directions for the protocol and OAI community.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/59513/1/Shreevesetal_576-589_LT_53_4.pd

    Contexts and Contributions: Building the Distributed Library

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    This report updates and expands on A Survey of Digital Library Aggregation Services, originally commissioned by the DLF as an internal report in summer 2003, and released to the public later that year. It highlights major developments affecting the ecosystem of scholarly communications and digital libraries since the last survey and provides an analysis of OAI implementation demographics, based on a comparative review of repository registries and cross-archive search services. Secondly, it reviews the state-of-practice for a cohort of digital library aggregation services, grouping them in the context of the problem space to which they most closely adhere. Based in part on responses collected in fall 2005 from an online survey distributed to the original core services, the report investigates the purpose, function and challenges of next-generation aggregation services. On a case-by-case basis, the advances in each service are of interest in isolation from each other, but the report also attempts to situate these services in a larger context and to understand how they fit into a multi-dimensional and interdependent ecosystem supporting the worldwide community of scholars. Finally, the report summarizes the contributions of these services thus far and identifies obstacles requiring further attention to realize the goal of an open, distributed digital library system
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