INTERVIEW QUESTIONS XML RDF DETAILS

Question: What is the RDF Schema?

Answer: We can also write RDF Schema in short RDFS.
Basically, We don't use RDF Schema allow for actual application-specific classes and properties.
We can say that RDF classes are same as classes thatwe defined in Object Oriented Programming Language. This enable resources to define the subclasses of class and instance of classes.
Example:
<?xml version="1.0"?>
<rdf:RDF
xmlns:rdf= "http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
xml:base="http://www.abc.com/animals#">
<rdf:Description rdf:ID="animal">
<rdf:type
rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/>
</rdf:Description>
<rdf:Description rdf:ID="lion">
<rdf:type
rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/>
<rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>
In the above example we use the resource "lion"
as a subclass of "animal" class.

We can also write RDF Schema in short RDFS.
Basically, We don't use RDF Schema allow for actual application-specific classes and properties.
We can say that RDF classes are same as classes thatwe defined in Object Oriented Programming Language. This enable resources to define the subclasses of class and instance of classes.
Example:
<?xml version="1.0"?>
<rdf:RDF
xmlns:rdf= "http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
xml:base="http://www.abc.com/animals#">
<rdf:Description rdf:ID="animal">
<rdf:type
rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/>
</rdf:Description>
<rdf:Description rdf:ID="lion">
<rdf:type
rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/>
<rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>
In the above example we use the resource "lion"
as a subclass of "animal" class. Source: CoolInterview.com

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