XML Validate

Is it necessary to validate XML file against a DTD? Justify

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preeti.tankwal

  • Mar 2nd, 2010
 

No it is not mandatory to use DTD always.

The preferred approach is to validate XML documents against XML schema definitions (XSD schemas). However, you can also validate XML against DTD's or XML-Data Reduced Schemas (XDR) schemas.
Validation introduces additional performance overhead. If there is a strong likelihood that clients will pass invalid XML to your application, you should validate and reject bad data early to minimize redundant processing effort.

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