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RDF/XML

Namespaces

<rdf:RDF
    xmlns:cc='http://creativecommons.org/ns#'
    xmlns:dcterms='http://purl.org/dc/terms/'
    xmlns:foaf='http://xmlns.com/foaf/0.1/'
    xmlns:owl='http://www.w3.org/2002/07/owl#'
    xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#'
>
Prefix Name URL
cc ccREL http://creativecommons.org/ns#
dcterms DCMI Metadata Terms http://purl.org/dc/terms/
foaf FOAF Vocabulary http://xmlns.com/foaf/0.1/
owl OWL 2 http://www.w3.org/2002/07/owl#
rdf RDF XML Syntax http://www.w3.org/1999/02/22-rdf-syntax-ns#

ccREL

DCMI Metadata Terms

FOAF Vocabulary

FOAF - Wikipedia (retrieved 2023-07-20):

FOAF (an acronym of friend of a friend) is a machine-readable ontology describing persons, their activities and their relations to other people and objects.

OWL 2

[OWL 2 Web Ontology Language Document Overview (Second Edition)][owl2overiew] (retrieved 2023-07-20):

The OWL 2 Web Ontology Language, informally OWL 2, is an ontology language for the Semantic Web with formally defined meaning. OWL 2 ontologies provide classes, properties, individuals, and data values and are stored as Semantic Web documents.

RDF XML Syntax

Changes

Overview

The changes between the old legacy ccEngine RDF/XML and the new CC Legal Tools App RDF/XML aim to enhance clarity, accuracy, compatibility, and standardization of the RDF representation of Creative Commons licenses. The improvements enhance the machine-readability and semantic understanding of the licenses, enabling better integration and interpretation within digital ecosystems. A general overview of what and why changes occured:

Improved Structure and Consistency

  • What: The structure of the RDF/XML files has been improved for better clarity, consistency, and adherence to RDF standards.
  • Why: A well-defined and consistent structure makes it easier for machines to process and interpret the RDF data accurately.
  • Diff: The newer generated RDF/XML have a more organized and standardized structure compared to the older legacy RDF/XML, ensuring that elements and properties are consistently represented.

Updated License Information

  • What: License information and conditions have been updated for some of the licenses.
  • Why: Keeping license information up-to-date ensures that users and automated systems are aware of the current permissions and restrictions associated with the licenses.
  • Diff: The newer generated RDF/XML include the most recent and updated license Information.

Alignment with RDF Best Practices

  • What: Changes have been made to align the RDF/XML representation with best practices and recommendations in the RDF.
  • Why: Following best practices ensures that the RDF data is structured in a way that maximizes interoperability and compatibility with other RDF-consuming applications.
  • Diff: The newer generated RDF/XML adhere to established RDF conventions, such as using standardized namespaces, consistent naming conventions, and properly defined relationships.

2023-09-08 Added machine layer to (this) CC Legal Tools App

Fixed wrong cc:deprecatedOn on the following legal tools:

  • CC Sampling+ 1.0 BR
  • CC Sampling+ 1.0 DE
  • CC Sampling+ 1.0 TW
  • CC Sampling+ 1.0

Updated RDF namespace prefix:

  • dcterms replaced dc and dcq

Added missing license RDF/XML:

  • CC BY-NC-ND 2.1 CA
  • CC BY-NC-SA 2.1 CA
  • CC BY-NC 2.1 CA
  • CC BY-ND 2.1 CA
  • CC BY 2.1 CA
  • CC BY-NC-ND 3.0 AM
  • CC BY-NC-SA 3.0 AM
  • CC BY-NC 3.0 AM
  • CC BY-ND 3.0 AM
  • CC BY 3.0 AM
  • CC BY-NC-ND 3.0 AZ
  • CC BY-NC-SA 3.0 AZ
  • CC BY-NC 3.0 AZ
  • CC BY-ND 3.0 AZ
  • CC BY 3.0 AZ
  • CC BY-NC-ND 3.0 CA
  • CC BY-NC-SA 3.0 CA
  • CC BY-NC 3.0 CA
  • CC BY-ND 3.0 CA
  • CC BY 3.0 CA
  • CC BY-NC-ND 3.0 GE
  • CC BY-NC-SA 3.0 GE
  • CC BY-NC 3.0 GE
  • CC BY-ND 3.0 GE
  • CC BY 3.0 GE

Removed legacy ccEngine RDF/XML for nonexistent license:

  • CC BY-ND-NC 2.0 JP

Improved compatibility:

  • Added additional DCMI: DCMI Metadata Terms to RDF/XML:
    • dcterms:LicenseDocument (duplicates cc:legalcode)
    • dcterms:Jurisdiction with rdf:datatype="http://purl.org/dc/terms/ISO3166" (duplicates cc:jurisdiction except for igo which uses un and for scotland for which this element is omitted)
  • Added owl:sameAs element with HTTPS URL

Improved multilingual support:

  • Title translations now match legal code (removed title translation languages that the legal code has not yet been translated into)
  • Added xml:lang to cc:legalcode
  • Removed top level rdf:Description elements that were redundant with cc:legalcode and dcterms:LicenseDocument elements

Removed third-party license RDF/XML (the deeds and legal codes were replaced by redirects long ago):

  • /licenses/BSD/rdf
  • /licenses/GPL/2.0/rdf
  • /licenses/LGPL/2.1/rdf
  • /licenses/MIT/rdf
  • /licenses/by-nd-nc/2.0/jp/rdf

Removed unused RDF/XML files:

  • /rdf/jurisdictions.rdf
  • /rdf/selectors.rdf

More information needed

The following entries are non-exhaustive. More work is required.

2011-01-06: CC REL by Example published

2008-08-20: Received World Wide Web Consortium (W3C) team comment on ccREL

2008-07-24: cc.license component of the ccEngine entered alpha

2008-05-01: Submitted ccREL to W3C

2008-04-08: Published ccREL