Now we want to add two more sources of articles (
News_Service and
Editor), which we will create as subclasses of
Author.
- Select Author in the Class Hierarchy pane.
- Click the Create Class
button and rename the new class News_Service. Whenever you create a new class, it is created as a subclass of the currently highlighted class. Also notice that when you create the first subclass of a class, a
or
icon appears to its left. You can use this icon to display or hide the subclasses of a class. So that we can develop the ontology in later sections, we will create another subclass of Author.
- Select Author in the Class Browser.
- Click the Create Class
button and rename the new class Editor.