Generating a Diagram from the XML Schema
You can generate a UML diagram from the XML Schema, if you want to represent the schema in a diagram.
To generate a diagram from the XML schema:

Right-click the schema name and select
New Generate a diagram.
You can generate two types of diagram:
• a 1 level class diagram: describes the first level of classes associated with any association classes, the first level of inheritance and the first level of implemented interfaces
• a fanout diagram: describes n levels of classes associated with any association classes (recursion stops if a class C does not belong to the same package as the described class but if c is included in the diagram), the first level of inheritance and the first level of implemented interfaces.
You can also build the diagram yourself.

Right-click the schema and select
New Diagram.

In the dialog box that opens, select "Class Diagram" and click on
Create.
The diagram that opens is empty.

You can drag the desired elements from the XML Navigator directly into the class diagram.
The buttons on the left are used to create the classes, associations, etc. representing the XML schemas. See the HOPEX UML guide for the functionalities of UML modeling.
From this diagram you can access the properties of schema elements.

Right-click the desired object in the diagram.

Select
Properties.
Its dialog box appears. You can specify and modify the properties of the element.