OR08 Publications

The aDORe Federation Architecture

Van de Sompel, H., Ryan, R. and Balakireva, L. (2008) The aDORe Federation Architecture. In: Third International Conference on Open Repositories 2008, 1-4 April 2008, Southampton, United Kingdom.

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This paper describes the aDORe repository federation architecture, an outcome of the aDORe research and development effort by the Digital Library Research & Prototyping Team of the Los Alamos National Laboratory (LANL). The goal of the aDORe federation architecture is to facilitate a uniform manner for client applications to discover and access content objects available in a group of distributed repositories. This is achieved by means of a 3-Tier architecture. Tier-3 provides client applications with a single point of access to all content available in the federation, irrespective of the actual location of that content in federated repositories. In order to realize this, the architecture requires all federated repositories to implement the same, minimal set of machine interfaces to make their content accessible. These repository interfaces constitute Tier-1 of the architecture. Moreover, the architecture requires the introduction of a middle Tier, Tier-2, consisting of two shared infrastructure components that keep the books on content objects, repositories, and repository interfaces in the federation. These shared infrastructure components minimally expose one machine interface each. In order to respond to client requests, the federation’s single point of access interacts with these interfaces as well as with the interfaces exposed by the content repositories.

Item Type:Conference or Workshop Item (Paper)
Creators:Herbert Van de Sompel, Ryan Ryan, Lyudmila Balakireva
Subjects:Main Conference > Wednesday 2nd April > 6b - Models, Architectures & Frameworks
ID Code:28
Deposited By: Leslie Carr
Deposited On:27 Mar 2008 19:46
Last Modified:26 Oct 2011 16:07


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