Expressing Dublin Core™ metadata using the Resource Description Framework (RDF) on DCMI

Expressing Dublin Core™ metadata using the Resource Description Framework (RDF): Release History

Mon, 02 Dec 2019 00:00:00 +0000

Release: Current Version
Release: 2007-04-02
Release: 2006-05-29
Release: 2008-01-14
Release: 2007-06-04

Expressing Dublin Core™ metadata using the Resource Description Framework (RDF)

Mon, 14 Jan 2008 00:00:00 +0000

Creator:	Mikael Nilsson KMR Group, NADA, KTH (Royal Institute of Technology), Sweden Andy Powell Eduserv Foundation, UK Pete Johnston Eduserv Foundation, UK Ambjörn Naeve KMR Group, NADA, KTH (Royal Institute of Technology), Sweden
Date Issued:	2008-01-14
Identifier:	http://dublincore.org/specifications/dublin-core/dc-rdf/2008-01-14/
Replaces:	http://dublincore.org/specifications/dublin-core/dc-rdf/2007-06-04/
Replaces:	http://dublincore.org/specifications/dublin-core/dcmes-xml/2002-07-31/
Replaces:	http://dublincore.org/specifications/dublin-core/dcq-rdf-xml/2002-05-15/
Latest Version:	http://dublincore.org/specifications/dublin-core/dc-rdf/
Status of Document:	This is a DCMI Recommendation.
Description of Document:	This document provides recommendations for expressing Dublin Core™ metadata using RDF, the Resource Description Framework.

Introduction
Summary of the RDF conceptual model
Namespace abbreviations
Representing DCAM constructs using the RDF Model
Some notes on semantics

References> Acknowledgements> Appendix A: Examples

Expressing Dublin Core™ metadata using the Resource Description Framework (RDF)

Mon, 02 Apr 2007 00:00:00 +0000

Title: Report from public comment period on Expressing Dublin Core™ 
              metadata using the Resource Description Framework (RDF)
Creator: Mikael Nilsson
Identifier: http://dublincore.org/specifications/dublin-core/2007/04/02/dc-rdf/comments-received.html
Date: 2007-06-04

The following comments and issues were raised during Public
Comment for the April 2007 version of "Expressing Dublin Core™
metadata using the Resource Description Framework (RDF)" [1].
The summary below refers to comments by Douglas Campbell [2] 
and Ivan Herman [3].

[1] http://dublincore.org/specifications/dublin-core/2007/04/02/dc-rdf/
[2] http://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind0705&L=dc-architecture&P=170
[3] http://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind0704&L=dc-architecture&P=1308

Use of dcterms: namespace

     As of June 2007, a proposal [1] to replicate the fifteen
     properties of the http://purl.org/dc/elements/1.1/ ("dc:")
     namespace in the http://purl.org/dc/terms/ ("dcterms:")
     namespace has not yet been approved or implemented.

     Proposal: To leave references to dcterms:subject and
     dcterms:title as is for now pending approval of the
     replication proposal. Status of DC-RDF will remain
     that of DCMI Proposed Recommendation.

     [1] http://dublincore.org/specifications/dublin-core/2007/02/05/domain-range/

Value-VES relationship as instance-Of v memberOf

    Could the relationship between value and VES be expressed
    as instanceOf (rdf:type) (with VES as Class) rather than
    dcam:memberOf?

    The current recommendation takes this approach but that
    has been changed:

     * to avoid confusion with "traditional" DCMI concept of VES

     * the instance-of relationship between value and VES
       created problems for integration with SKOS, where the
       relationship between a concept and a concept scheme is
       skos:inScheme, not instance-of

    Proposal: No change required.

RDF summary

    It was suggested that the RDF summary would go into an appendix

    Proposal: As the RDF terminology and graph notation is used later
    in the document, the section should probably be kept.

Include DC-TEXT in all examples

    It was suggested that DC-TEXT should be used in all examples

    Proposal: Should be done.

Wording of Section 5

    It was suggested that the language on describing "value"
    at the end of section 5 could be improved

    Proposal: Improve language.

Wording section 5

    It was suggested that the "Value classes" bullet list be 
    improved with concrete examples.

    Proposal: Should be done.

Use of dcterms:type

    It was pointed out that examples use dcterms:type but text says 
    to use rdf:type.

    Proposal: Examples are correct. References to dcterms:type in 
    DC-TEXT converted to rdf:type in RDF.

Examples description improvement

    It was suggested that plain language describing the content of 
    the metadata examples be added.

    Proposal: Should be done.

Example of multiple languages

    Add multiple language strings in multiple languages to one of the examples.

    Proposal: Should be done.

rdfs:label preferred over rdf:value

    There is an issue with finding the right label for display purposes.

    Proposal: rdfs:label is not an option, as the semantics
    does not match the definition of value string.

dcterms:type vs rdf:type

    There is an issue with declaring a sub-property
    of rdf:type. OWL-DL will not accept the assertion that
    dcterms:type is rdfs:subPropertyOf rdf:type.

    Proposal: This is really an issue for the DCMI Usage Board.
    -- Remove statement that dcterms:type is rdfs:subPropertyOf rdf:type.
    -- State that in mapping from DCAM to RDF, dcterms:type maps to rdf:type.

Usage of rdf:ID vs rdf:nodeId

    Last example not clear about the mapping of DC-TEXT IDs

    Proposal: Make clear that no URI is created in the mapping of blank 
    nodes.

Expressing Dublin Core™ metadata using the Resource Description Framework (RDF)

Mon, 02 Apr 2007 00:00:00 +0000

Title: Changes introduced 2007-04-02 draft of DC-RDF
Date: 2007-03-31

The major changes introduced in the 2007-04-02 version of
the Proposed Recommendation "Expressing Dublin Core™ metadata
using the Resource Description Framework (RDF)" [1] are:

 -- Updated summary of the DCMI Abstract Model to reflect
    the changes in the 2007-04-02 version [3].
 -- Changed all references to dcrdf:valueString to rdf:value
 -- Removed the RDF shorthand notation
 -- Introduced the notion of literal value surrogates as per the DCAM.
 -- Modified the examples to use dcterms properties; modified
    literal/non-literal examples.
 -- Changed the representation of Vocabulary Encoding Schemes
    to use the dcam:memberOf property instead of rdf:type.

The document "Notes on DCMI specifications for Dublin Core™
metadata in RDF" [2] provides additional explanatory context.

[1] http://dublincore.org/specifications/dublin-core/2007/04/02/dc-rdf/
[2] http://dublincore.org/specifications/dublin-core/2007/04/02/dc-rdf-notes/
[3] http://dublincore.org/specifications/dublin-core/2007/04/02/abstract-model/

Expressing Dublin Core™ metadata using the Resource Description Framework (RDF)

Mon, 02 Apr 2007 00:00:00 +0000

Title: Changes introduced 2007-04-02 draft of DC-RDF
Date: 2007-03-31

The major changes introduced in the 2007-04-02 version of
the Proposed Recommendation "Expressing Dublin Core™ metadata
using the Resource Description Framework (RDF)" [1] are:

 -- Updated summary of the DCMI Abstract Model to reflect
    the changes in the 2007-04-02 version [3].
 -- Changed all references to dcrdf:valueString to rdf:value
 -- Removed the RDF shorthand notation
 -- Introduced the notion of literal value surrogates as per the DCAM.
 -- Modified the examples to use dcterms properties; modified
    literal/non-literal examples.
 -- Changed the representation of Vocabulary Encoding Schemes
    to use the dcam:memberOf property instead of rdf:type.

The document "Notes on DCMI specifications for Dublin Core™
metadata in RDF" [2] provides additional explanatory context.

[1] http://dublincore.org/specifications/dublin-core/2007/04/02/dc-rdf/
[2] http://dublincore.org/specifications/dublin-core/2007/04/02/dc-rdf-notes/
[3] http://dublincore.org/specifications/dublin-core/2007/04/02/abstract-model/

Expressing Dublin Core™ metadata using the Resource Description Framework (RDF)

Mon, 29 May 2006 00:00:00 +0000

Creator:	Mikael Nilsson KMR Group, NADA, KTH (Royal Institute of Technology), Sweden Andy Powell Eduserv Foundation, UK Pete Johnston Eduserv Foundation, UK Ambjörn Naeve KMR Group, NADA, KTH (Royal Institute of Technology), Sweden
Date Issued:	2006-05-30
Identifier:	http://dublincore.org/specifications/dublin-core/dc-rdf/2006-05-29/
Replaces:	Not applicable
Is Replaced By:	Not applicable
Latest Version:	http://dublincore.org/specifications/dublin-core/dc-rdf/
Status of Document:	This is a DCMI Working Draft.
Description of Document:	This document provides draft recommendations for expressing Dublin Core™ metadata using RDF, the Resource Description Framework.

Introduction
Summary of the DCMI abstract model
Summary of the RDF conceptual model
Namespace abbreviations
Representing DCAM constructs using the RDF Model
Using domains and ranges

References> Acknowledgements> Appendix A: Examples

Expressing Dublin Core™ metadata using the Resource Description Framework (RDF) on DCMI

Expressing Dublin Core™ metadata using the Resource Description Framework (RDF): Release History

Expressing Dublin Core™ metadata using the Resource Description Framework (RDF)

Table of contents

Expressing Dublin Core™ metadata using the Resource Description Framework (RDF)

Expressing Dublin Core™ metadata using the Resource Description Framework (RDF)

Expressing Dublin Core™ metadata using the Resource Description Framework (RDF)

Expressing Dublin Core™ metadata using the Resource Description Framework (RDF)

Table of contents