This sections contains information on the following:
Creating DTDs
A document type definition (DTD) contains a set of rules that can
be used to validate an XML file. After you have created a DTD, you can manually
edit it, adding declarations that define elements, attributes, entities, and
notations, and how they can be used for any XML files that reference the DTD
file.
Importing DTDs
If you want to work with DTD files that you created outside of
the product, you can import them into the workbench and open them in the DTD
editor.
Validating DTDs
Validating a DTD file lets you verify that it is well formed and
does not contain any errors.