Web Data Management
For XML document to be valid ?

document validity has no relationship with well formedness
document need to be well formed & valid
document need not to be well formed
document need to be well formed also

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Web Data Management
The use of a DTD in XML development is ?

used to direct conversion using an XSLT processor
no longer necessary after the XML editor has been customized
a good guide to populating a templates to be filled in when generating an XML document automatically
required when validating XML documents

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