The Class Diagram is a graphical representation for both classes and their relationships. With the specialized editor, modifications can be made to both the appearance and class structures. A toolbox also known as UML Designer Toolbox provides the ability to add new diagram elements. Any changes to the appearance of the diagram are lost without a save. All structural changes are saved immediately.
The Class Diagram Editor is a graphical editor that helps you to document and maintain a selection of classes. They are added with a name to any class (including the model) and can be organised using Folders and other Class Diagrams.
The changes made to the Class Diagram are immediately reflected in the class view, and the changes made in the Class View immediately affect the appearance of the Class Diagram Editor.
The Class Diagram Editor is used to modify and manipulate class diagrams. The modifications that you can make in Class Diagram Editor are:
Adding and removing classes as diagram members.
Specifying properties of diagram members, such as name and description.
Adding and removing attributes and methods from diagram members.
Adding and removing relationships between diagram members.
Specifying properties of relationships between diagram members.
Specifying the appearance of diagram members in terms of font type, line style, and fill color.
Specifying the display of diagram members in terms of the inclusion of attributes, methods, kind, visibility, and initial value.
Specifying the spatial layout of diagram members.
Refer to Manipulating Entities and Entity Properties for more information.
The modifications that you make in Class Diagram Editor are persistent and are reflected in the other model views, such as the Properties window or Class View as soon as each discrete operation is performed.
Note: The modifications that affect the model is reflected immediately whereas to reflect the appearace changes such as font type or font color requires an explicit Save.