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{{Short description|Archival standards}}
The [[Open Archives Initiative]] '''Object Reuse and Exchange''' (OAI-ORE) defines standards for the description and exchange of aggregations of [[web resource]]s. The OAI-ORE specification implements the '''ORE Model''' which introduces the [[resource map]] (ReM) that makes it possible to associate an identity with aggregations of resources and make assertions about their structure and semantics.
These aggregations (sometimes called ''[[compound digital object]]s'' or ''compound information objects'') may combine distributed resources together, and with multiple media types including text, images, data, and video. The goal of OAI-ORE is to expose the rich content in aggregations to applications that support authoring, deposit, exchange, [[Information visualization|visualization]], reuse, and [[digital preservation|preservation]].
The [[Andrew W. Mellon Foundation]] funded two years of work on the OAI-ORE project in
== Introduction ==
The ORE standard is concerned with the description of aggregations of web resources. It defines 4 entities:
* the Aggregation itself, identified by its [[URI]] but without any corresponding concrete resource. It is a conceptual resource. Being uniquely identified it can enter into relationships with other resources, in particular aggregations of
* the Aggregated Resource: any resource part of an aggregation, identified by its URI
* the Resource Map: a resource describing an aggregation based on a set of assertions. A mandatory assertion indicates which aggregation the Resource Map itself is describing. Other assertions indicate the aggregated resource(s). Certain metadata are mandatory as well, such as the map creator. [[Dublin Core]] terms are used for this purpose.
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== See also ==
* [[Atom (standard)]]
==Notes==
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| title = Compound Information Objects: The OAI-ORE Perspective
}}
* {{cite
| last1 = Lagoze | first1 = Carl
| title = Object Re-Use & Exchange: A Resource-Centric Approach
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== External links ==
* [http://www.openarchives.org/ore/ ORE website]
* [http://www.openarchives.org/ore/1.0/atom-validator ORE Atom Resource Map Validator] (currently broken, since June 2010). <!-- as of 17 July 2010 -->
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