UML Booster Session Quiz

In the diagram shown what is the horizontal line at the end called?

•   Fork Node

• Merge Node

•    Join Node

• Spoon Node

Answer explanation

Page 32 of 2019 Reader (Introduction to Modeling, by P. Stikker) on Moodle

Who is involved in reading and updating the Activity diagram?

• Developer

• Designer

• Analyst

• Client

Answer explanation

Page 48 of 2019 Reader (Introduction to Modeling, by P. Stikker) on Moodle and the powerpoint slides from the lectures.

What symbol is used to represent an "action" in a UML State Machine Diagram?

• A dashed line with an arrowhead

• A forward slash (/)
  
  

• A rectangle with rounded corners

• A solid circle
  
  

Answer explanation

Page 47 of 2019 Reader (Introduction to Modeling, by P. Stikker) on Moodle

What is the role of a "guard" in a UML State Machine Diagram?

• It represents the start of the diagram

• It specifies the final state of an object

• It triggers an event when the object reaches a certain state

• It defines the conditions that must be met for a transition to occur

Answer explanation

Page 47 of 2019 Reader (Introduction to Modeling, by P. Stikker) on Moodle

In the diagram shown, the dotted line with an open arrowhead is called ____

• An object

• A reply message

• A synchronous message

• None of the above

Answer explanation

Page 43 of 2019 Reader (Introduction to Modeling, by P. Stikker) on Moodle

What is the symbol used to represent an "Activation Box" or "Execution Specification" in a UML Sequence Diagram?

• A solid-outline rectangle

• A filled arrowhead
  
  

• A dashed line

• A thin vertical rectangle
  
  

Answer explanation

Page 42 of 2019 Reader (Introduction to Modeling, by P. Stikker) on Moodle

What is the key difference between Aggregation and Composition in UML?

• Composition represents a weaker whole-part relationship than aggregation.

• Aggregation has a stronger ownership relationship than composition.

• In aggregation, the parts can exist independently of the whole.

• Composition allows parts to belong to multiple parents, while aggregation restricts this.

Answer explanation

Page 37 of 2019 Reader (Introduction to Modeling, by P. Stikker) on Moodle

Given the use case diagram for MyHospital App, what is the best way to extend the diagram to implement a feature for "Cancel Appointment" and automatically "Notify Doctor"?

• Add "Cancel Appointment" and "Notify Doctor" as new use cases with inheritance from "Update Calendar".

• Add two new use cases for "Cancel Appointment" and "Notify Doctor," and connect them to both actors (Patient and Doctor/Specialist) without relationships.

• Add "Cancel Appointment" as a new use case that extends "Make Appointment" and include a new use case for "Notify Doctor" as an include relationship under "Cancel Appointment."

• Add a new use case for "Cancel Appointment" as a standalone use case, without connecting it to any other use cases.

What does the access modifier “+” indicate in UML class diagrams?

• Public visibility

• Package visibility

• Protected visibility

• Private visibility
  

Answer explanation

Page 34 of 2019 Reader (Introduction to Modeling, by P. Stikker) on Moodle

What does a Class Diagram represent in UML?

• The flow of data within a system

• The static structure of a system

• The dynamic behavior of a system

• None of the above

Answer explanation

Page 33 of 2019 Reader (Introduction to Modeling, by P. Stikker) on Moodle