XML Schema Guide for eB Web

In the eB Web Administrator guide it references the use of the XML Schema Guide for document creation. Where can I find a copy of this guide? I'm running 15.4.1.325 Hf 342.

The end goal is to configure a Word Document template where the information entered into the template and then drag and dropped into eB, creates the Document object from the appropriate Class/Template and updates properties, attributes and relationships.

Any and all information regarding this task is greatly appreciated!!

Patrick