Activity Diagram for the ATM System
Explore how to design activity diagrams for an ATM system focusing on cardholder interactions such as inserting a card, entering a PIN, selecting transactions, and handling errors. This lesson helps you visually map out ATM transaction processes and prepares you for system design challenges in interviews.
An activity diagram is a great way to visualize the flow of messages from one activity to another in the system. There can be different activity diagrams that we can create for our ATM. In this lesson, we will create activity diagrams for the following two activities:
The cardholder performs ATM transactions.
Activity challenge: The cardholder performs an ATM cash withdrawal. ...