Exam 8: Structural Modeling

The interface of an object is defined by two factors: what it offers and how the offerings are presented to other entities.

A ________ carries out the responsibilities of another class.

A Plane class does not fly; a plane object does.

Classes define the containers of data, while their contents are provided by objects.

Profit is a derived attribute.

Structural modeling is needed to support a system's ________.

Describe and give an example of multiplicity.

"A student must register for at least 6 credits per semester but cannot enroll in more than 18" is an example of ________.

Encapsulation can by no means enable the object to enforce business rules.

Describe and give an example of association.

The interface of an object is defined by two factors: ________ it offers and ________ the offerings are presented to other entities.

When we develop an information system, choosing the right building block and the right viewpoint at the right time is critical.

EntertaimentSystem is an aggregate of TelevisionSet and SoundSystem.

We can make a class out of a complex attribute.

Elaborate on "classes as building blocks of structural modeling and objects as units of information systems."

A public attribute or operation is invisible to all entities.

In structural modeling, constraints don't apply to associations.

An object's interface is a ________ between the object and the entities that use it.

A private attribute or operation cannot be (directly) accessed by outside entities.

Multiplicity can be expressed as ________.