V22.0470 Assignment 3

Written By Haytham Allos

Fall, 2002

DUE DATE:  Week of December 9, 2002

Automated Teller Machine (ATM)

The following is a problem statement for an automated teller machine (ATM) network shown in the figure below.


Design the software to support a computerized banking network including both human cashiers and automatic teller machines (ATMs) to be shared by a consortium of banks. Each bank provides its own computer to maintain its own accounts and process transactions against them. Cashier stations are owned by individual banks and communicate directly with their own bank’s computers. Human cashiers enter account and transaction data. Automatic teller machines communicate with a central computer which clears transactions with the appropriate banks. An automatic teller machine accepts a cash card, interacts with the user, communicates with the central system to carry out the transaction, dispenses cash, and prints receipts. The system requires appropriate record keeping and security provisions. The system must handle concurrent accesses to the same account correctly. The banks will provide their own software for their own computers; you are to design the software for the ATMs and the network. The cost of the shared system will be apportioned to the banks according to the number of customers with cash cards.

Assignment: Analyse the requirements to construct a class diagram.

  1. Identify object and classes.
  2. Identify associations between the classes
  3. Identify attributes of classes
  4. Organise and simplify the classes using inheritance.

Make Some Refinements

Adapt the class diagram.

How to submit your assignment:

This assignment is worth a maximum of 100 points.

You will need to explain your model to the grader to receive a grade.

Good Luck