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(Solved): 1. Read the below problem statement and draw an appropriate class diagram. Problem statement: An au ...
1. Read the below problem statement and draw an appropriate class diagram. Problem statement: An automated teller machine (ATM) is a banking subsystem that provides bank customers with access to financial transactions in a public space without the need for a cashier, clerk, or bank teller. The bank needs a code to identify it and an address. The methods that the bank class can use to interact with its ATM are manage and maintain. is managed by the bank and it has a location. Its methods are related to which it identifies and carries out. need a name and an address. The relationship between the bank and the customer is that the bank has customers. The only method for the customer is to own an account and to own a debit card. is owned by a customer and also has a type, such as savings or checking. It has a method to enable it to check the account balance. 2. The class diagram helps to model which perspective?
Expert Answer
Here's a step-by-step explanation of how the class diagram is derived based on the provided problem statement:Step 1: Identify Classes Read through the problem statement and identify the main entities or objects mentioned. In this case, the main classes are:BankATMCustomerAccountStep 2: Define Class Attributes For each class, identify the attributes or properties mentioned in the problem statement. These are the characteristics or data associated with each class. Based on the problem statement, we have the following attributes:Bank: code, addressATM: locationCustomer: name, addressAccount: typeStep 3: Determine Class Relationships Examine the relationships mentioned in the problem statement and determine how the classes are related to each other. Based on the problem statement, we have the following relationships:Bank has customers (Aggregation relationship)Account is owned by a Customer (Composition relationship)Step 4: Identify Class Methods Look for any methods or behaviors mentioned in the problem statement that are associated with each class. Based on the problem statement, we have the following methods:Bank: manage(), maintain()ATM: identifyTransaction(), carryOutTransaction()Customer: ownAccount(), ownDebitCard()Account: checkBalance()Step 5: Draw the Class Diagram Based on the identified classes, attributes, relationships, and methods, you can now proceed to draw the class diagram. Each class is represented as a box with the class name at the top, followed by its attributes and methods.Bank class:Attributes: code, addressMethods: manage(), maintain()ATM class:Attributes: locationMethods: identifyTransaction(), carryOutTransaction()Customer class:Attributes: name, addressRelationships: Aggregation (Bank has customers)Methods: ownAccount(), ownDebitCard()Account class:Attributes: typeRelationships: Composition (Account is owned by a Customer)Methods: checkBalance()Connect the classes with appropriate relationship lines. Use arrows to indicate the direction of the relationship (e.g., Bank has customers, Customer owns Account).