Object Models

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Object Models represent the data structure for the application.

Class Diagrams

Budget Category Object Models

Each object ultimately inherits from the BaseObject class.  BudgetCategory  and BudgetItem are sibling classes, but BudgetItem is also further subclassed into IncomeItem or ExpenseItem. A BudgetCategory object holds a collection of zero or more related BudgetItem objects.

Banking Object Models

Also inheriting from BaseObject is another abstract class, BankAccount, that serves as base class for either CheckingAccount or SavingsAccount objects.

 

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