The Class Diagram
A class diagram is used to represent the static structure of a system, in particular the types of objects manipulated in the system, their internal structure, and the relationships between them.
A class diagram includes:
• Classes, which represent the basic concepts (client, account, product, etc.).
• Associations, which define the relationships between the different classes.
• Attributes, which describe the characteristics of classes and, in certain cases, of associations.
• Operations, which can be executed on objects of the class.

Operations are not taken into account by
HOPEX Database Builder tools (synchronization, generation etc.).
Creating a Class Diagram
To create the class diagram of a package:
1. On the desktop, click the navigation menu, then Logical data.
2. In the tree to the left, click in the packages list.
The list of packages appears in the edit area.
3. Click the icon of the package concerned and select New > Class Diagram.
The new class diagram opens.
Note that when you create a package from a database, a class diagram is automatically created at the same time.