Activity Diagram Quiz

What does an activity diagram in the use case model capture?

• Data flow

• Activities in a use case

• System architecture

• User interface

How is an activity represented in the UML?

• Lozenge

• Solid circle

• Rectangle with rounded corners

• Diamond

What does a start state represent in an activity diagram?

• Synchronization point

• End of a workflow

• Decision point

• Beginning of a workflow

How is an end state represented in an activity diagram?

• Solid circle

• Bull's eye

• Lozenge

• Diamond

What does a state transition show in an activity diagram?

• Activity follows after another

• Decision point

• Beginning of a workflow

• Concurrent threads

What does a decision represent in an activity diagram?

• Beginning of a workflow

• End of a workflow

• Guard conditions

• Concurrent threads

What does a synchronization bar allow you to show in an activity diagram?

• System architecture

• Data flow

• Activities in a use case

• Concurrent threads

What is represented by a diamond in an activity diagram?

• Start state

• End state

• Decision

• Synchronization bar

How many start states are there in an activity diagram?

• One

• Zero

• Two

• Multiple

How many end states can there be in an activity diagram?

• Zero

• One

• Multiple

• Two