4.4. Sequence Diagram Sample

Try these first

1. 1.

   What is a sequence diagram used for?

   Hint

   Think about how actions occur in order.

2. 2.

   Name one component of a sequence diagram.

   Hint

   What shows participant or system involvement?

3. 3.

   What do sequence diagrams primarily illustrate?

   • Data storage
   • Interaction order
   • UI design

   Hint

   Consider what aspect of system behavior they highlight.

4. 4.

   True or False: Activation bars show the duration of active objects.

   • True
   • False

   Hint

   Think about what they indicate regarding objects' activity.

5. 5.

   Design a sequence diagram for a mobile app functionality where a user books a flight, including the steps from flight search to payment confirmation.

   Hint

   Break down the process into distinct steps.

6. 6.

   Critique a provided sequence diagram for the order management process and identify any missing components or potential improvements.

   Hint

   Look for elements that may not have been considered.