¶ … Automated Teller Machine Servicing
The use of ATM in a retail banking system has become a revolutionized technology that assists banks to facilitate banking transactions and free customers from a lengthy queue. Moreover, the ATM technology has facilitated the global integration for fund transfer, withdraw and deposit because it assists bank customers to travel to any part of the world to complete the banking transactions using their ATM cards (Alexander, & Maiden, 2004). Despite the benefits associated with the ATM technology, nevertheless, the ATM system requires developing a use case to support for the ATM system.
The use case is a technique to identify functional requirements of a software system to assist in effective functioning of ATM services. Typically, use case is an important concept representing user objectives, which can either be a graphical form or textual form. The benefit of use case is that it assists in describing a system from external point-of-view rather than from developer point-of-view. (Some, 2010). Thus, a use case analysis is a technique of finding functional requirements of information system or software system, and the case model assists the stakeholders in four ways: Planning iterative development, capturing requirements, validating systems, and verifying systems. (Mall, 2004).
Objective of this project is develop Use Cases software to support ATM service for a retail bank. The paper discusses the logical strategies of designing the use case to deposit, withdraw and transfer funds using the ATM system.
Event of Withdrawing Money with ATM
This section provides the narrative event of a customer withdrawing his or her money using the ATM card, and the case and actor are used for the narrative. The use case illustrates a series of action that offers something, which is measurable in value. On the other hand, an actor is an organization, person or external person who interacts with the system. In essence, an actor is referred as a user. Association between use cases and actors is an interaction between the use case and actor. (Senthil, Arun, & Vijaya, 2011).
The ATM (Automated Teller Machine) is a banking subject or subsystem that provides banks' clients with access to withdraw their funds and perform other financial transactions at public space without the assistance of a bank teller or cashier. Customers (actors) are allowed to use their bank ATM to check balances from their bank accounts. Moreover, a customer can use their bank ATM to withdraw cash, deposit funds, or transfer funds to another account. ATM technicians also provides repairs and maintenance when needed. However, all the mentioned use cases required Bank actor related to ATM servicing and customer transactions. (Rajaraman, 2004). The ATM user interface displays screen; keypad cash dispenses as well as deposit slot. The ATM session reveals authenticate user and execute financial transactions.
Fig.1: Illustration of Use Case of Fund Withdrawal using ATM Card
As being revealed in Fig 1, the following case document provides the steps by which a bank customer withdraws money from an ATM. In the use case, the paper capitalizes the Actors Names:
The use case starts when the Client inserts his ATM card into the ATM slot.
The System reads all the information in the ATM card.
The System reads and validates the information from the ATM card.
The System prompts for the PIN.
The Client inputs the PIN.
The System validates the PIN
The System asks the type of operations that the clients intends to perform.
The Client selects the "Cash withdrawal"
The System prompts and displays the amount to withdraw.
The Client enters the amount to withdraw.
The System displaces "saving," "checking," "saving," or "credit" account types and asks the Client to select one account for withdrawal.
The Client selects type of the account type for withdrawal.
The System validates the PIN, account ID, and amount requested for withdrawal by communicating with the ATM network.
The System asks whether the Client wants a receipt.
The System pushes out the card and asks the Client to remove his card.
The Client pulls out the card.
The System dispenses out the requested cash.
The System prints the receipt out.
The Client is asked to pull out the receipt.
Ends the Transfer use case.
However, Account Withdrawal may not be successful if the Customer inputs the wrong PIN. In this scenario, the ATM will notify the customer that he/she has input a Wrong Pin. Moreover, if the amount in the account is below the requested fund to Withdraw, the system will display the error code.
Event of Making Account Deposit
The use case discusses the method of depositing money into a bank account. To deposit money, the Bank Customer puts the his or her intended money in an envelope...
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