Tutorial: Getting Started with Protege-Frames
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Creating Classes
The Protege-Frames main window consists of tabs that display the knowledge model's various aspects. The most important tab when you start a project is the Classes tab. Usually classes will correspond to objects, or types of objects, in the domain. In the newspaper example, classes include people, such as editors, reporters, and salespeople, components of the newspaper layout, such as sections, and newspaper content, such as advertisements and articles.

Classes in Protege-Frames are shown in an inheritance hierarchy, displayed in the Class Browser in the left part of the Classes tab. The properties of the class currently selected in the tree are displayed in the Class Editor to the right.

In this section, you will learn how to create classes, subclasses, modify the class hierarchy, make classes abstract, and add additional superclasses to existing classes.