Sequence Diagram for the ATM System
Explore how to design a sequence diagram illustrating the balance inquiry process in an ATM system. Understand the step-by-step interactions among the user, ATM, bank, and printer, and how these components communicate to verify PIN, retrieve balance, and optionally print a receipt.
We'll cover the following...
We'll cover the following...
A sequence diagram is a great way to understand the interactions between different entities and objects in the system. We can create different sequence diagrams for our ATM. For the sake of this lesson, we will create sequence diagrams for balance inquiry from the ATM.
Balance inquiry
The sequence diagram for how to complete the balance inquiry using an ATM should have the following actors and objects that will ...