Associating XML Schemas with XML Instance Documents

This tutorial covers how to associate one or more XML schemas with an XML instance document in Stylus Studio for the purpose of editing and validating the XML data. Specifically, the following topics are covered: Associating an External Schema With a Document, Having Stylus Studio Generate a Schema then associate it, Validating XML Documents, Updating a Document's XML Schema, and Removing the Association Between a Document and an XML Schema.

http://www.stylusstudio.com/docs/v62/d_edit9.html