Chapter 2 Building an Object-Oriented Model
An arrow appears at the beginning of the line.
3Modify any of the properties of the class directly in the list.
4Click OK.
Adding objects to a class
You can add an object to a class, that already exists in the model, but which belongs to another class.
You can add the following objects to an object:
Object
Attribute
Operation
Business rule
Description
Named property of a class that defines the characteristics of a class
Implementation of a service that can be requested from any object of the class in order to affect behavior
Written statement specifying what the information system must do or how it must be structured to support business needs
You add an object to a class from the list in the page corresponding to the object, in the class property sheet.
When you add an object to a class in this way, you in fact create a copy of the object. The new object exists as a unique object, and you can then make changes to it as you would to any object in the model.
29