The Class Diagram Toolbox is used to create objects and links between objects on a class diagram. This toolbox is shown in the following figure:

To add an object to a class diagram, click on the required icon and put it on the diagram. Set an object name and its properties by double clicking on this object.

To add a link, click on the required icon. In the class diagram, click on the first end object and drag to the second end object. Set a link name and its properties by double clicking on this link.

To delete an object or link from the class diagram, right-click the object or link and select Delete From Diagram or Delete From Model . If you choose Delete From Diagram you still can see the object or link in the outline view, because the object or link is only deleted from the graphical view.