Given that as a software engineer you are assigned the task of developing a Credit Card Validation System. This system will allow a customer to perform card transactions and resolve transaction issues. The system will also allow for the processing of customer bills and managing customer accounts. A Retailer Merchant will be able to use the system to perform card transaction and process customer bills. In addition, the system will allow a Financial Institution to process customer bills and manage customer accounts.
Use an appropriate CASE tool to draw the Use Case diagram for this system