let's dive into designing a banking management system using C$++$ Object$-$Oriented Programming $($OOP$)$ concepts. Here's a breakdown, focusing on the key aspects mentioned in the class diagram and the prompt:

Classes and Objects:

$1.$ Account:

This is the base class representing a bank account.

It can have member variables like account number $($string$),$ balance $($double$),$ and interest rate $($double$).$

It can have member functions like "deposit$($amount$)",$ "withdraw$($amount$)",$ and "calculateInterest$()"($which caluculates interest based on the interest rate$).$

$2.$ Savings Account $($inherits from Account$)$:

This inherits from "Account" and might have additional attributes specific to savings accounts, like a minimum balance requirement.

It might override the "caluculateInterest$()"$ function to suit savings account interest caluculations.

$3.$ CurrentAccount $($inherits from Account$)$:

This inherits from Account and might have attributes specific to current accounts, like overdraft limit$.$

$4.$ Customer:

This class represents the bank customer.

It can have member variables like name $($string$),$ address $($String$),$ and account $($ an "Account" object $-$ notice the association$).$

It can gave a function "displayInfo$()"$ to display customer details and account information

$5.$ Bank

This class represents the bank it self.

It can have a collection $($e$.$g$.,$ vector$)$ to store "Customer" objects.

It can have function like "addCustomer$($customer$)",$ "findCustomer$($acountnumber$)",$ "deposit$($accountNumber$,$ amount$)",$ and "withdraw$($accountNumber$,$ amount$)"$ to manage customer accounts.

Inheritance: The "SavingsAccount" and "CurrentAccount" classes inherit from the "Account" class, promoting code reusability

Association: This "Customer" class has an $"$ Account" object as a member variable representing a bank account associated with a customer.

Aggregation: The "Bank" class has a collection of "Customer" objects, signifying that the bank's existence is independent of individual customers, but the bank manages customer data.

Polymorphism:

The "caluculateInterest$()"$ function can be overridden in derived classes $("$SavingsAccount$"$ and "CurrenAccount"$)$ to provide specific interest rate caluculations for each account type.

Note:WRITE THE COMPLETE CODE OF BANK MANAGEMENT SYSTEM AND PLEASE WRITE GENERIC CODE.