Lecture 9 - Sequence Diagrams

Question 1

In System Sequence Diagrams, what does a Use Case specify?

Answer 1

Specifies a functionality

Question 2

TF: A Use Case scenario is a time-ordered series of function calls that system invokes on actor

Answer 2

False. Time-ordered series of function calls that actor invokes on system

Question 3

What is another name for Use Case scenarios?

Answer 3

System operations/events

Question 4

What is another name for sequence diagrams?

Answer 4

Interaction diagram

Question 5

What is a sequence diagram?

Answer 5

An “interaction diagram” that models a single scenario executing in the system

Question 6

TF: In a message arrow for a sequence diagram, the description (message signature) name is optional

Answer 6

False. Message name is mandatory

Question 7

When a sender waits for the receiver to process the message before carrying on with another message, it is considered what type of message?

Answer 7

Synchronous message

Question 8

When a caller does not wait for the receiver to process the message and return before sending other messages to other objects within the system, it is considered what type of message?

Answer 8

Asynchronous message