Use Cases Research Paper Example | Topics and Well Written Essays - 1250 words

Use Cases - Research Paper Example The diagrams also have attachments of informal text giving extra details similar to that which exists in the requirements document. Their level of use is normally during the analysis phase of the software. Through it, as designers the goal of meeting the demands of the system remains in scope. In figure 1 above, the stick figure shows an actor playing the role of an entity external to the system and its interactions. In this case, the actor is either another system or a person. The user in the ATM system can withdraw cash (Zhang & Yang, 2012). In other cases, the user is not always the real person, but it may consist of the duties played by a real person when in interaction with the ATM system. Other actors present in an ATM system include administrator who fills the cash in the dispenser before work commences. The client inserts their card into the slot in the ATM that reads the card. The bank then has to perform synchronization between the ATM and the bank through providing an identifier for the session. The system then deciphers the information in the ATM card before authenticating the customer to perform their transaction at the ATM. The client will then select the option to withdraw which will provide them with the options of how much to withdraw. The system will compare the users wishful amount with what it possess before allowing them to withdraw. Otherwise, if the amount is more than what they can withdraw, they will be requested to enter a smaller value. The ATM system will then eject the card from the bank. Dispense of cash takes place thus allowing the system to record a log of transaction for the withdrawal of that money. The latter marks the ends of the process. The transaction on depositing cash through the ATM is mapped by a request to the client to select the type of the account for which to deposit to from available options. The customer then enters the amount they wish to deposit through the ATM (Salerno, 2014). The transaction