You can create an XML definition by importing a flat file definition from the repository. If you import more than one flat file definition, the Designer creates an XML definition with a view for each flat file. The views have no relationship to each other in the XML definition. If you choose to create a root view, the Designer creates the views with foreign keys to the root.
The following figure shows a sample XML source definition from flat files orders and products:
Products and Orders have a foreign key to the root view, and are highlighted.