Object Diagram

• An object is an instance of a class
• Every object has its own copy of the attributes defined in the class an can perform the behaviurs defined in the class
• For example if a television class has defined then an object of that class might have values for its attributes as follows:
• size = 34
• serial number = 123459876
• production date = 10/06/01
• An object is represented in the UML in the following fashion
• A rectangle is used with an underlined name
• The name of the object is on the left of a colon
• The name of the class from which the object is produced is specified on the right fo the colon