Defining classes
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Adding an attribute to a class
An attribute is a named property of an object that defines the characteristics
of the object.
You can add attributes that already exist in the model and which belong to
other objects.
v To add an attribute to a class:
1 Double-click a class in the model.
The class property sheet appears.
2 Click the Attributes tab.
The Attributes page appears.
3 Click the Add Attributes tool.