October 1997
Intermediate to advanced
800 pages
20h 48m
English
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1.3. Object Model Notation
The object model is the static structure of a system. To create an object model, you must first of all understand the problem domain. You must understand exactly what the system is supposed to do. Next, pick out the classes, describe them and decide how they relate to each other. (Remember, classes group related objects together.) This process is usually iterative, resulting in a more accurate or more detailed object model with each pass.
Classes
We use classes to represent related objects in a problem domain. What is an object? In general, an object is a noun (a person, place, or thing). We use our skills in abstraction to identify objects and group them into classes. For example, in an airport simulation system, ...