OAI-ORE

From MPDLMediaWiki

Open Archives Initiative - Object Reuse and Exchange

Contents 1 General 2 Basic Principles 2.1 Aggregation (A) 2.2 Resource Map (ReM) 2.3 Data model 3 Advantages 3.1 General 3.2 Possible new Features 3.3 Tools 4 Steps 5 OAI-ORE in use 6 Related Material

General

OAI-ORE defines standards to identify and describe aggregations on the web to describe and. Taking a publication as an example, it mostly consists of multiple resources (publisher pdf, supplementary material, metadata etc.), therefore what we 'see' as an publication is actually the aggregation of multiple resources.

Aggregations should be modelled in respect of the core foundations of the Web

• Resource, an item of interest.
• URI, a global identifier for a Resource.
• Representation
• Link, a directed connection between two Resources.

Basic Principles

Image from: http://www.slideshare.net/hvdsomp/the-oaiore-interoperability-framework

Aggregation (A)

A non-information resource.

Resource Map (ReM)

An information resource that describes an aggregation

Data model

RDF Graph using name spaces:

• dc (http://purl.org/dc/elements/1.1/)
• dcterms (http://purl.org/dc/terms/)
• foaf (http://xmlns.com/foaf/0.1/)
• ore (http://www.openarchives.org/ore/terms/)
• owl (http://www.w3.org/2002/07/owl#)
• rdf (http://www.w3.org/1999/02/22-rdf-syntax-ns#)

Advantages

General

• Improve interoperability
• Using a (soon?) standard for modelling our relations
• Detection and processing of relation information, within and outside eSciDoc
• Following the principles of Linked Data (share structured data on the Web)
• Addressing Cool URI and content negotiation

Possible new Features

• One step towards the 'research data continuum'? If we can model faces, ViRR, PubMan data in ore, we can easily create new Aggregations containing data from different solutions.
• Visualize data with Foresite

Tools

• Java Library (for constructing, parsing, manipulating and serializing OAI-ORE Resource Maps. ATOM, RDF/XML, N3, N-Triples, Turtle and RDFa)
• Foresite Explorer (Visualization of Relations)
• WordPress plug-in (creating Resource Maps for WordPress posts and pages)

Steps

The basic steps to integrate OAI-ORE to eSciDoc (regarding publication data for start) would be:

1. Create mapping from eSciDoc Publication Item to ore
2. Create mapping from ore to eSciDoc Publication Item
3. Make sure that every resource has its own URI
4. Expose oai_ore over OAI-PMH
5. Implement http part
6. Enable SWORD deposit of ore data

OAI-ORE in use

This is just an extract of systems supporting OAI-ORE:

• EPrints
• Fedora
• DSpace
• Microsoft Zentity
• MyExperiment.org
• arXiv.org
• Flickr
• Oxford Research Archive
• Word Press
• Amazon

Related Material

• Official oai-ore website
• ore 1.0 Specification
• oai-ore tutorial at OAI6 by Herbert van de Sompel
• Screencast on oai-ore
• Linked Data
• More on Linked Data
• Cool URI
• Intern:
  • Previous CoLab entry on OAI-ORE
  • OAI-ORE for eSciDoc Publication Items
• Enhanced Publications Model