UML Diagrams Quiz

What do Use Case Diagrams primarily show?

• System's internal structure

• User interactions with the system

• Object behavior

• Data structures

In a Use Case Diagram, what represents a user or external system?

• Actor

• Use Case

• System Boundary

• Relationship

What does an "include" relationship between two use cases signify?

• One use case is a specialized version of another.

• One use case is a subset of another.

• One use case always follows another.

• One use case may optionally include another.

Which of these is NOT typically found in a Class Diagram?

• Attributes

• Methods

• Use Cases

• Class Name

What does a generalization relationship (inheritance) represent?

• A "has-a" relationship

• A "is-a" relationship

• A dependency

• An association

What does an aggregation relationship in a Class Diagram indicate?

• A strong, whole-part relationship where the parts cannot exist independently.

• A weaker whole-part relationship where the parts can exist independently.

• A dependency between two classes.

• A one-to-many association between two classes.

What does an association relationship in a Class Diagram represent?

• A hierarchical relationship between classes.

• A dependency between classes.

• A relationship where one class is composed of other classes.

• A general connection between two classes.

Which of the following is NOT a core principle of UML?

• Abstraction

• Encapsulation

• Inheritance

• Concurrency

What is the purpose of a system boundary in a UML diagram?

• To define the scope of the system.

• To represent the internal structure of the system.

• To show the flow of data within the system.

• To illustrate the dynamic behavior of objects.

Which diagram is primarily used to model the static structure of a system?

• Use Case Diagram

• Class Diagram

• Sequence Diagram

• Statechart Diagram