Visual Modeling with Rational Rose 2002 and UML

States

A state is a condition during the life of an object during which it satisfies some condition, performs some action, or waits for an event. The state of an object may be characterized by the value of one or more of the attributes of the class. For example, a CourseOffering object may be open (able to add a student) or closed (maximum number of students already assigned to the CourseOffering object). The state depends upon the number of students assigned to the particular CourseOffering object. Additionally, a state of an object may be characterized by the existence of a link to another object. A professor may be teaching or on sabbatical. This depends upon the existence of a link to a CourseOffering object. Looking at the state of an object ...