RADion, and the higher level vocabularies that build upon it, are
intended as a model that facilitates federation
and co-operation. It is not the primary intention that repository owners
redesign or convert their current systems and data to conform to RADion, but
rather that it acts as a common layer among repositories that want to
exchange data.
Status of this document
This section describes the status of this document at the time of its publication. Other documents may supersede it.
This document has been reviewed by representatives of the Member States of the European Union,
PSI
publishers, and by other interested parties.
Publication of this Final Draft does not imply endorsement by the European Commission or its representatives.
This is a draft document and may be updated, replaced or made obsolete by other documents at any time. It is inappropriate to cite this
document as other than work in progress. The Working Group will seek further endorsement by the
Member State representatives in the ISA Coordination Group or the Trusted Information Exchange Cluster.
Comments on the vocabulary are invited via the
forum
.
Table of Contents
Introduction
The Repository Asset Distribution (RADion) was developed under the European
Commission's
ISA Programme
. This is the namespace document, generated
from the associated RDF schema. Full documentation is provided in the
RADion RDF Schema
specification document itself. This includes background information,
use cases, the conceptual model and full definitions for all terms used.
Namespace
The URI for this vocabulary is
http://www.example.org/ns/rad#
When abbreviating terms the suggested prefix is
rad
Each class or property in the vocabulary has a URI constructed by appending a term name to the vocabulary URI. For example:
This section provides the formal definition of each class in the vocabulary.
Class
Repository
Type of Term
Class
QName
rad:Repository
URI
http://www.example.org/ns/rad#Repository
Definition
A Repository is a system or service that provides facilities for storage and
maintenance of descriptions of Assets and Distributions. A Repository will typically contain descriptions
of several Assets and functionality that allows users to search and access these descriptions. The
Distributions - the actual files themselves - will typically be available from the Repository or
elsewhere on the World Wide Web.
Class
Asset
Type of Term
Class
QName
rad:Asset
URI
http://www.example.org/ns/rad#Asset
Definition
An Asset represents the conceptual content of a resource. A particular
Asset may have zero or more Distributions in different formats.
Class
Distribution
Type of Term
Class
QName
rad:Distribution
URI
http://www.example.org/ns/rad#Distribution
Definition
A Distribution is a particular representation or concretisation of an
Asset in the form of a downloadable computer file that implements the intellectual content of an
Asset. A particular Distribution is typically associated with one Asset.
Class
Agent
Type of Term
Class
QName
dcterms:Agent
URI
http://purl.org/dc/terms/Agent
Definition
A resource that acts or has the power to act.
Usage Note
The dcterms:Agent class (or a sub class of it) is used in RADion to represent the publisher of a Repository or its components.
Class
Location
Type of Term
Class
QName
dcterms:Location
URI
http://purl.org/dc/terms/Location
Definition
The dcterms:Location class fully represents the RADion class of Geographic Coverage.
The dcterms:LinguisticSystem class fully represents the RADion concept of Language.
Usage Note
Used in RADion to provide the language of textual information within an Asset, e.g. the language of the terms in a controlled vocabulary (ideally the set of tags defined by RFC 3066 ) or the language that a specification is written in.
Class
File Format
Type of Term
Class
QName
dcterms:FileFormat
URI
http://purl.org/dc/terms/FileFormat
Definition
The dcterms:FileFormat class fully represents the RADion concept of a file format.
Usage Note
Used in RADion to provide the technical format that a Distribution is available in, e.g. PDF for a document, XML for a schema.
Class
License
Type of Term
Class
QName
dcterms:LicenseDocument
URI
http://purl.org/dc/terms/LicenseDocument
Definition
The dcterms:LicenseDocument class fully represents the RADion concept of a Licence
Usage Note
Used in RADion to provide the conditions or restrictions that apply to the use of a Distribution, e.g. whether it is in the public domain, or that some restrictions apply like in cases attribution is required, or the Asset can only be used for non-commercial purposes etc.
Class
string, URI, dateTime, text
Type of Term
Class
QName
rdfs:Literal
URI
http://www.w3.org/2000/01/rdf-schema#Literal
Definition
At the conceptual level, the rdfs:Literal datatype fully represents the RADion datatypes of
a string (an untyped literal) and text (string plus language tag). The RADion datatype of
dateTime is also served since that requires a string conformant with ISO 8601:2004 which is
true of all relevant xsd datatypes. Likewise a Literal datatyped as xsd:anyURI will fulfil
the needs of RADion's URI data type.
Class
Code
Type of Term
Class
QName
skos:Concept
URI
http://www.w3.org/2004/02/skos/core#Concept
Definition
The Conceptual Model includes a 'Code' datatype that
is used by several classes. This is expressed using the
SKOS vocabulary
with
a particular 'code' usually being a skos:Concept that is part of a scheme.
The intention is that the skos:Concept class be used as follows;
for the content property, use skos:notation
the 'list' property will be taken care of by means of the skos:inScheme property;
the list agency property is likely to be applied to the scheme as a whole for which dcterms:creator is appropriate;
The dcterms:alternative property fully represents the RADion property of Alternative Name.
Usage Note
Used in RADion to provide an alternative name for the Asset: this information may be used to provide additional access points, e.g. allowing indexing of any acronyms, nicknames, shorthand notations or other identifying information that a user might expect to find the Asset under. The range of dcterms:alternative is rdfs:Literal
Property
current version
Type of Term
Property
QName
xhv:last
URI
http://www.w3.org/1999/xhtml/vocab#last
Definition
The xhv:last property fully represents the RADion relationship of Current version
Usage Note
RADion uses the XHTML 'last' property to link an Asset to the most recent (i.e. current) version.
Property
date created
Type of Term
Property
QName
dcterms:created
URI
http://purl.org/dc/terms/created
Definition
The dcterms:created property fully represents the RADion property of Date of Creation.
Usage Note
RADion uses this to provide the creation date of this version of the Repository, Asset or Distribution. RADion expects a datatyped value and for it to be conformant with ISO 8601, preferably using an xsd data type.
Property
date modified
Type of Term
Property
QName
dcterms:modified
URI
http://purl.org/dc/terms/modified
Definition
The dcterms:modified property fully represents the RADion property Date of Last Modification.
Usage Note
RADion uses this to provide the date of latest update of the Repository, Asset or Distribution. RADion expects a datatyped value and for it to be conformant with ISO 8601, preferably using an xsd data type.
Property
description
Type of Term
Property
QName
dcterms:description
URI
http://purl.org/dc/terms/description
Definition
The dcterms:description property fully covers the RADion property of the same name.
Usage Note
Used in RADion to provide descriptive text for the Repository, Asset or Distribution.
Property
distribution
Type of Term
Property
QName
rad:distribution
URI
http://www.example.org/ns/rad#distribution
Domain
#Asset
Range
#Distribution
Definition
The distribution relationship associates an Asset (its domain) with a Distribution (its range). It is the inverse of distributionOf
Property
distributionOf
Type of Term
Property
QName
rad:distributionOf
URI
http://www.example.org/ns/rad#distributionOf
Domain
#Distribution
Range
#Asset
Definition
The distributionOf relationship associates a Distribution (its domain) with the Asset (its range) of which it is a Distribution. It is the inverse of distribution
Property
format
Type of Term
Property
QName
dcterms:format
URI
http://purl.org/dc/terms/format
Definition
The dcterms:format property fully represents the RADion relationship of the same name
Usage Note
Used in RADion to link to the format that the Distribution is available in (e.g. PDF, XML, RDF/XML, HTML) which is provided as a property of dcterms:FileFormat
Property
includes
Type of Term
Property
QName
dcterms:hasPart
URI
http://purl.org/dc/terms/hasPart
Definition
The dcterms:hasPart property fully represents the RADion relationship of includes.
Usage Note
RADion uses dcterms:hasPart to link a Repository to an Asset.
Property
keyword
Type of Term
Property
QName
rad:keyword
URI
http://www.example.org/ns/rad#keyword
Range
http://www.w3.org/2000/01/rdf-schema#Literal
Definition
A word or phrase used to succinctly descibe the Asset
Property
label or name
Type of Term
Property
QName
rdfs:label
URI
http://www.w3.org/2000/01/rdf-schema#label
Definition
The rdfs:label property fully represents the RADion properties of name and label.
Usage Note
RADion uses this to provide the name or label of any class.
Property
language
Type of Term
Property
QName
dcterms:language
URI
http://purl.org/dc/terms/language
Definition
The dcterms:language property fully represents the RADion property of the same name.
Usage Note
RADion uses this to provide the language of the Asset.
Property
license
Type of Term
Property
QName
dcterms:license
URI
http://purl.org/dc/terms/license
Definition
The dcterms:license property fully represents the RADion relationship of the same name.
Usage Note
Used in RADion to link to the conditions or restrictions for (re-use) of the Distribution. Note that the range is dcterms:LicenseDocument
Property
next version
Type of Term
Property
QName
xhv:next
URI
http://www.w3.org/1999/xhtml/vocab#next
Definition
The xhv:next property fully represents the RADion relationship of Next version
Usage Note
RADion uses the XHTML 'next' property to link an Asset to the next most recent version.
Property
previous version
Type of Term
Property
QName
xhv:prev
URI
http://www.w3.org/1999/xhtml/vocab#prev
Definition
The xhv:prev property fully represents the RADion relationship of Previous version
Usage Note
RADion uses the XHTML 'previous' property to link an Asset to the previous version.
Property
publisher
Type of Term
Property
QName
dcterms:publisher
URI
http://purl.org/dc/terms/publisher
Definition
The dcterms:publisher property fully represents the RADion relationship of the same name
Usage Note
Used in RADion to link to the organisation responsible for the publication of the Asset, Repository or Distribution. Note that the range is dcterms:Agent.
Property
relation
Type of Term
Property
QName
dcterms:relation
URI
http://purl.org/dc/terms/relation
Definition
The dcterms:relation property fully represents the RADion related asset property.
Usage Note
Used in RADion to link any Asset to any other related Asset. RADion expects the object to be of type rad:Asset.
Property
repository origin
Type of Term
Property
QName
dcterms:isPartOf
URI
http://purl.org/dc/terms/isPartOf
Definition
The dcterms:isPartOf property fully represents the RADion relationship of repository origin..
Usage Note
RADion uses dcterms:isPartOf to link an Asset to a Repository.
Property
spatial coverage
Type of Term
Property
QName
dcterms:spatial
URI
http://purl.org/dc/terms/spatial
Definition
The dcterms:spatial property fully represents the RADion relationship of spatial coverage.
Usage Note
RADion uses this to link to the geographic region or jurisdiction that the Asset or Repository applies to. Note that the range is dcterms:Location.
Property
theme, theme taxonomy
Type of Term
Property
QName
dcterms:subject
URI
http://purl.org/dc/terms/subject
Definition
The dcterms:subject property fully represents the RADion properties of theme and theme taxonomy.
Usage Note
The theme relationship associates an Asset with a specific Theme and theme taxonomy
does the same job for the repository as a whole. Themes are typically, but not necessarily,
encoded as a skos:Concept, arranged in a skos:ConceptScheme.
Property
type
Type of Term
Property
QName
dcterms:type
URI
http://purl.org/dc/terms/type
Definition
The dcterms:type property fully represents the RADion property of type.
Usage Note
Used in RADion to link a Licence or Publisher to its type.
Property
version
Type of Term
Property
QName
rad:version
URI
http://www.example.org/ns/rad#version
Range
http://www.w3.org/2000/01/rdf-schema#Literal
Definition
The version number or other designation of the Asset; the value should be a free text string
Property
version notes
Type of Term
Property
QName
rad:versionNotes
URI
http://www.example.org/ns/rad#versionNotes
Range
http://www.w3.org/2000/01/rdf-schema#Literal
Definition
Notes on the particular version of the Asset.
Conformance Statement
A conformant implementation of this vocabulary MUST understand all vocabulary terms defined in this document.
Document generated from the RDF schema using
this XSLT
