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Purpose of XML Namespaces

Posted By:Deepika Haridas       Posted Date: September 25, 2009    Points: 25    Category: XML    URL: http://www.dotnetspark.com  
 

An XML Namespace is collection of element types and attribute names. It consists of two parts :

1) The first part is the URI used to identify the namespace
2) The second part is the element type or attribute name itself.

Together they form a unique name. 

The various purpose of XML Namespace are
1. Combine fragments from different documents without any naming conflicts. 
2. Write reusable code modules that can be invoked for specific elements and attributes. Universally unique names guarantee that 
such modules are invoked only for the correct elements and attributes. 
3. Define elements and attributes that can be reused in other schemas or instance documents without fear of name collisions. 

For 
example, you might use XHTML elements in a parts catalog of shopping cart to provide part descriptions. Or you might use the nil attribute 
defined in XML Schemas to indicate a missing value.



XYZ

Gold Street. 7
Ahmedabad< /addr:City>
gujarat< /addr:State>
India< /addr:Country>
D-64285


OurWebServer< /serv:Name>
123.45.67.8

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