Exam 6: Object Modeling

A major advantage of O-O designs is that systems analysts can save time and avoid errors by using modular objects.

When the outcome of one use case is incorporated by another use case, we say the second use case uses the first case.

Some objects might have a few attributes; others might have dozens.

All relationships have equal weight; none is stronger than any other.

The black box concept is an example of ____________________, which means that all data and methods are self-contained.

The line from the actor to a use case is called a(n) ____.

Inheritance enables a ____ to derive one or more of its attributes from a parent.

A(n) ____________________ shows the object classes and relationships involved in a use case.

Which of the following is an attribute of a car?

In a sequence diagram, a lifeline is identified by a(n) ____ line.

In a sequence diagram, a(n) ____________________ represents the time during which the object above it is able to interact with the other objects in the use case.

In a sequence diagram, a message is identified by a narrow vertical shape that covers the lifeline.