XML Schema - Detailed introduction to Dublin Core

Dublin Core standards are a method of classifying information commonly used in libraries. The Dublin Core standard has an XML Schema that defines how to use XML to describe this type of information. Dublin Core efficiently catalogs a variety of information and makes it easy to modify, query, and use. Dublin Core's current use in information description and definition makes the Semantic Web a reality. Pass
Dublin Core standard is a method of classifying information, commonly used in libraries. The Dublin Core standard has an XML Schema that defines how to use XML to describe this type of information. Dublin Core efficiently catalogs a variety of information and makes it easy to modify, query, and use.
Dublin Core's current use in information description and definition makes the Semantic Web a reality. By using a unified standard to describe data and, more importantly, using well-designed and proven solutions to describe data in other XML documents in detail, it can be efficiently exchanged and compared between different sources information.
The Dublin Core specification has its own schema, but its purpose is to embed larger XML documents, using XML namespaces to define the DC elements needed to describe other data in the document. As an example, read Listing 10 to see how the DC classification system can be used in an RDF XML schema to describe the content of an RDF entity, such as a website. To do this, you can extend the structure from the previous RDF schema example.
Listing 10. Using DC classification system to describe the content of RDF entities in RDF XML schema

           

  <?xml version="1.0"?>

<rdf:RDF

xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"

xmlns="http://my.netscape.com/rdf/simple/0.9/"

xmlns:dc="http://purl.org/dc/elements/1.1/">

  <rss:channel rdf:about="http://www.xml.com/xml/news.rss">

    <rss:title>MCSLP</rss:title>

    <rss:link>http://www.php.cn/ </rss:link>

    <dc:description>

      MCSLP features information, projects and articles from members of the MCSLP team.

    </dc:description>

    <dc:subject>MCSLP, Grids, XML, Databases, Programming </dc:subject>

    <dc:identifier>http://www.php.cn/;/dc:identifier>

    <dc:publisher>MCSLP</dc:publisher>

    <dc:rights>Copyright 2008, MCSLP</dc:rights>





</rdf:RDF>

     

Listing 10 uses the DC element to add description, subject, publisher, copyright, and identifier information to categorize RSS feeds.
Complete Dublin Core Metadata Elements Set Includes 15 metadata elements.

Title 

    Creator 

    Subject 

    Description 

    Publisher 

    Contributor 

    Date 

    Type 

    Format 

    Identifier 

    Source 

    Language 

    Relation 

    Coverage 

    Rights

1. This provides a broad scope for describing information.                                                                                              

The above is the detailed content of XML Schema - Detailed introduction to Dublin Core. For more information, please follow other related articles on the PHP Chinese website!