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An example of DSD in its simplest form:

 <dsd xmlns="http://www.brics.dk/DSD/2.0" xmlns:my="http://example.com">   <if><element name="my:foo"/> <declare> <attribute name="first"/> <attribute name="second"/> <contents> <element name="my:bar"/> </contents> </declare> </if>   <if><element name="my:bar"/> <declare> <contents> </contents> </declare> </if>   </dsd> 

This says that element named "foo" in the XML namespace "http://example.com" may have two attributes, named "first" and "second". A "foo" element may not have any character data. It must contain one subelement, named "bar", also in the "http://example.com" namespace. A "bar" element is not allowed any attributes, character data or subelements.

One XML document that would be valid under the above DSD would be:

 <foo xmlns="http://example.com" second="2"> <bar/> </foo> 

External links

• DSD home page
• Full DSD specification
• Comparison of DTD, W3C XML Schema, and DSD