The best XML DTD Tutorial In 2024, In this tutorial you can learn In the form of well-formed XML documents,Validate XML documents,XML DTD,XML Schema,A generic XML Validator,
XML has the correct syntax is called "good form" in XML.
DTD validation of XML through a "legal" XML.
"Well Formed" XML document has correct syntax.
Syntax rules described in the previous section:
Legal XML document is a "Well Formed" XML document, which is consistent with the Document Type Definition (DTD) rules:
In the example above, DOCTYPE declaration is a reference to an external DTD file. The following paragraphs show the contents of the file.
DTD is intended to define the structure of XML documents. It uses a series of legal elements to define the document structure:
If you want to learn DTD, please on our home page to find DTD tutorial.
W3C supports an XML-based DTD instead of who it called XML Schema:
If you want to learn XML Schema, please our home page to find Schema tutorial.
To help you check the syntax of the XML file, we have created an XML validator, so you can check syntax for any XML document.
See the next chapter.