Class Diagrams

What is the purpose of Class Diagrams?

• To model physical components of a system

• To show the static structure of classes in a system

• To show dynamic behavior of the system

• To capture the flow of data within the system

Which of the following is the most appropriate name for a class that will be responsible for managing and maintaining information about articles in an online Newspaper ?

• Manage articles

• Article

• Manage and maintain articles

• Managing articles

Which of the following names follow the correct syntax for an attribute?

• emailAddress

• Date_of_birth

• preferred-pronoun

• CustomerName

What symbol denotes protected visibility in UML?

• ~

• +

• -

• #

What type of relationship does aggregation represent?

• "associated-with" relationship

• "is-a" relationship

• "part-of" relationship

• "depends-on" relationship

In a Class Diagram, what does multiplicity * signify?

• Zero or more

• One or one

• Several

• Many to many

Which of the following association constraints indicate that "multiple inheritance" would be allowed?

• complete

• overlapping

• disjoint

• include

Which relationship indicates that there is whole-part relationship between the participating objects but the part object(s) cannot exist without a whole object.

• Inheritance

• Generalisation

• Aggregation

• Composition

In OO approach, bundling of data and the operations that act on that data in an object known as what?

Generalisation association is a transitive association, meaning the relationship between instances of one class can be extended to instances of another class through a chain of associations involving intermediate classes. Is this true of false?

• True

• False