RDF instance
RDF instance
This is one of a few lines of a CD list:
标题 | 艺术家 | 国家 | 公司 | 价格 | 年份 |
---|---|---|---|---|---|
Empire Burlesque | Bob Dylan | USA | Columbia | 10.90 | 1985 |
Hide your heart | Bonnie Tyler | UK | CBS Records | 9.90 | 1988 |
This is one of a few lines of an RDF document:
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:cd="http://www.recshop.fake/cd#">
<rdf:Description
rdf:about="http://www.recshop.fake/cd/Empire Burlesque">
<cd:artist>Bob Dylan</cd:artist>
<cd:country>USA</cd:country>
<cd:company>Columbia</cd:company>
<cd:price>10.90</cd:price>
<cd:year>1985</cd:year>
</rdf:Description>
<rdf:Description
rdf:about="http://www.recshop.fake/cd/Hide your heart">
<cd:artist>Bonnie Tyler</cd:artist>
<cd:country>UK</cd:country>
<cd:company>CBS Records</cd:company>
<cd:price>9.90</cd:price>
<cd:year>1988</cd:year>
</rdf:Description>
.
.
.
</rdf:RDF>
This document is the first line of RDF XML declaration. After this declaration is the root element RDF XML document: <rdf: RDF>.
xmlns: rdf namespace defines the elements with the prefix rdf from namespace "http://www.w3.org/1999/02/22-rdf-syntax-ns#".
xmlns: cd namespace, specifies the elements with the prefix cd from the namespace "http: //www.recshop.fake/cd#".
<rdf: Description> element contains to be rdf: about attribute identifies the resource description.
Element: <cd: artist>, < cd: country>, <cd: company> and so is the property of this resource.
RDF validator Online
The W3C RDF validation service is very helpful when you learn RDF. Here you can test RDF file.
RDF online validator can resolve your RDF document, which checks the syntax and generates tabular and graphical views for your RDF document.
Copy and paste the following example to the W3C RDF validator:
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:si="http://www.w3schools.com/rdf/">
<rdf:Description rdf:about="http://www.w3schools.com">
<si:title>W3Schools.com</si:title>
<si:author>Jan Egil Refsnes</si:author>
</rdf:Description>
</rdf:RDF>
After you parse the example above, the result will be like this.