Working with Namespaces in XML Schema

Dare Obasanjo discusses various aspects of W3C XML Schema and how they are affected by namespaces. Topics covered include proper usage of the targetNamespace, elementFormDefault and attributeFormDefault attributes, as well as the include, import, and redefine elements within a schema.

http://msdn.microsoft.com/library/en-us/dnexxml/html/xml08192002.asp?frame=true