Title
aDORe: A Modular, Standards-Based Digital Object Repository
Abstract
This paper describes the aDORe repository architecture designed and implemented for ingesting, storing, and accessing a vast collection of Digital Objects at the Research Library of the Los Alamos National Laboratory. The aDORe architecture is highly modular and standards-based. In the architecture, the MPEG-21 Digital Item Declaration Language is used as the XML-based format to represent Digital Objects that can consist of multiple datastreams as Open Archival Information System Archival Information Packages (OAIS AIPs). Through an ingestion process, these OAIS AIPs are stored in a multitude of autonomous repositories. A Repository Index keeps track of the creation and location of all the autonomous repositories, whereas an Identifier Locator reflects in which autonomous repository a given Digital Object or OAIS AIP resides. A front-end to the complete environment---the OAI-PMH Federator---is introduced for requesting OAIS Dissmination Information Packages (OAIS DIPs). These OAIS DIPs can be the stored OAIS AIPs themselves, or transformations thereof. This front-end allows OAI-PMH harvesters to recurrently and selectively collect batches of OAIS DIPs from aDORe, and hence to create multiple, parallel services using the collected objects. Another front-end---the OpenURL Resolver---is introduced for requesting OAIS Result Sets. An OAIS Result Set is a dissemination of an individual Digital Object or of its constituent datastreams. Both front-ends make use of an MPEG-21 Digital Item Processing engine to apply those services to OAIS AIPs, Digital Objects, or constituent datastreams that were specified in a dissemination request.
Year
DOI
Venue
2005
10.1093/comjnl/bxh114
The Computer Journal
Keywords
DocType
Volume
oais aips,oais result,oais dissmination information packages,autonomous repository,standards-based digital object repository,oais aip resides,constituent datastreams,oais dips,digital objects,oais result sets,digital object,front end,indexation,digital library,process engineering
Journal
48
Issue
ISSN
Citations 
5
0010-4620
23
PageRank 
References 
Authors
1.62
4
5
Name
Order
Citations
PageRank
Herbert Van De Sompel11667173.97
Jeroen Bekaert213517.92
Xiaoming Liu346139.13
Luda Balakireva4231.95
Thorsten Schwander5231.62