The newly created module is selected in the left-hand area and the "Diagram" tab is selected in the right-hand area.

From the "Toolbox" displayed there, the model elements "Class" or "Enumeration" can now be dragged into the diagram.

A dialog opens for entering a name and creating the new model element.

Classes define typical domain objects (entities) with their properties. Enumerations, on the other hand, define enumerations with several selection options that have no properties other than the respective name (e.g. status lists).

In the example, a new class "Ticket" is created:

If the new class is selected (by clicking on it), a context menu opens with the function "create Property" for defining the individual properties of the class:

When creating a new property, a unique technical name (ID) and the data type are specified:

In the same way as the Ticket class before, a new enumeration (enumeration) "Status" can also be created. For this purpose, a new enumeration is dragged from the toolbox into the diagram:

In the dialog that opens as a result, the technical name for the new enumeration is assigned and the elements of the enumeration are defined in the "Classifiers" area.