Description Set profiles

Mikael Nilsson < [email_address] > DC 2007, Singapore Aug 27-31, 2007 Description Set Profiles

DC Application Profiles - traditional definition “ A Dublin Core Application Profile (DCAP) is a declaration specifying which metadata terms an organization, information provider, or user community uses in its metadata. By definition, a DCAP identifies the source of metadata terms used—whether they have been defined in formally maintained standards such as Dublin Core, in less formally defined element sets and vocabularies, or by the creator of the DCAP itself for local use in an application. Optionally, a DCAP may provide additional documentation on how the terms are constrained, encoded or interpreted for application-specific purposes.” -- CEN CWA 14855:2003

Machine-readable constraints? XML Schema? Not applicable to RDF Not applicable to HTML Not applicable to .... CEN Guidelines Not based on DCAM No support for Description Sets Needed something new “ Dublin Core Description Set Profile”

Envisioned usages as a formal representation of the constraints of a Dublin Core Application Profile as configuration for databases as configuration for metadata editing tools etc.

Scope of a DSP spec Information model: Structural constraints on a description set: what descriptions may occur what properties may be used what ways might a value surrogate be given XML expression

Out of scope Human-readable documentation Definition of vocabularies Version control etc.

DC Application Profiles - new definition (in progress) A DCAM-conformant Application Profile (“DC Application Profile”) is packet of documentation which consists of: Functional requirements (mandatory) Domain model (mandatory) Description Set Profile (DSP) (mandatory) Usage guidelines (optional) Encoding syntax guidelines (optional)

Foundation standards Domain standards Application Profile

First working draft http://dublincore.org/architecturewiki/DescriptionSetProfile Comments on DC-ARCHITECTURE Publication schedule not defined

Example: The book AP A book: a literal title a creator, described separately A creator a literal name

Statement template: literal title dcterms:title Literal value Language SES Property: Statement template: creator dcterms:creator Value string Language SES Property: Value URI Vocabulary Encoding Scheme Description reference: Creator Statement template: literal name foaf:name Literal value Language SES Property: standalone:no Description Template: Book Description Template: Creator

{{{#!DSP == Description template: Book == DT=(min="1" max="1" standalone="yes" identifier="book") === Title === ST=(max="1" type="literal" PC={http://purl.org/dc/terms/title}) || Definition || A name given to the resource. || LC=(LangC=(occurrence="optional") SESConstraint=(occurrence="disallowed") ) === Creator === ST=(max="1" type="nonliteral" PC={http://purl.org/dc/terms/creator}) || Definition || An entity primarily responsible for making the resource. || NLC=(VURIConstraint=(occurrence="disallowed") VESConstraint=(occurrence="disallowed") VStringConstraint=(max="1" LangC=(occurrence="disallowed") SESConstraint=(occurrence="disallowed")) description="creator" ) == Description template: Creator == DT=(min="1" max="1" standalone="no" identifier="creator") === Name === ST=(max="1" type="literal" PC={http://xmlns.com/foaf/0.1/name}) || Definition || A name for some thing. || LC=(LangC=(occurrence="disallowed") SESConstraint=(occurrence="disallowed") ) }}} http://knowware.nada.kth.se/DCWiki/TheBookAP?action=raw http://knowware.nada.kth.se/DCWiki/TheBookAP http://knowware.nada.kth.se/DCWiki/TheBookAP?action=DSP2XML Link

http://knowware.nada.kth.se/DCWiki/TheBookAP?action=raw http://knowware.nada.kth.se/DCWiki/TheBookAP http://knowware.nada.kth.se/DCWiki/TheBookAP?action=DSP2XML

<?xml version="1.0"?> <DescriptionSetTemplate> <DescriptionTemplate maxOccur="1" minOccur="1"> <StatementTemplate maxOccur="1" type="literal"> <Property>http://purl.org/dc/terms/title</Property> <LiteralConstraint> <SyntaxEncodingSchemeOccurrence>disallowed</SyntaxEncodingSchemeOccurrence> <LanguageOccurrence>optional</LanguageOccurrence> </LiteralConstraint> </StatementTemplate> <StatementTemplate maxOccur="1" type="nonliteral"> <Property>http://purl.org/dc/terms/creator</Property> <NonliteralConstraint descriptionTemplateID="creator"> <ValueURIOccurrence>disallowed</ValueURIOccurrence> <VocabularyEncodingSchemeOccurrence>disallowed</VocabularyEncodingSchemeOccurrence> <ValueStringConstraint maxOccur="1"> <SyntaxEncodingSchemeOccurrence>disallowed</SyntaxEncodingSchemeOccurrence> <LanguageOccurrence>disallowed</LanguageOccurrence> </ValueStringConstraint> </NonliteralConstraint> </StatementTemplate> </DescriptionTemplate> <DescriptionTemplate maxOccur="1" minOccur="1"> <StatementTemplate maxOccur="1" type="literal"> <Property>http://xmlns.com/foaf/0.1/name</Property> <LiteralConstraint> <SyntaxEncodingSchemeOccurrence>disallowed</SyntaxEncodingSchemeOccurrence> <LanguageOccurrence>disallowed</LanguageOccurrence> </LiteralConstraint> </StatementTemplate> </DescriptionTemplate> </DescriptionSetTemplate> http://knowware.nada.kth.se/DCWiki/TheBookAP?action=raw http://knowware.nada.kth.se/DCWiki/TheBookAP http://knowware.nada.kth.se/DCWiki/TheBookAP?action=DSP2XML

Putting DSPs to work The SHAME demo Takes DSP-XML Generates an RDF editor on the fly RDF conforms to DSP constraints

Description Set profiles

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Description Set profiles