🏦 Bank Management System

A role-based banking management system developed in C++ that simulates real-world banking operations including account management, transactions, loan processing, authentication, and user administration.

The project applies object-oriented design principles and modern software engineering practices such as repository-based architecture and dependency injection.

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📌 Introduction

Bank Management System is a console-based application designed to model the core functionality of a banking environment.

The system supports multiple user roles with different permissions and provides a structured architecture that separates business logic, data access, and user management responsibilities.

The project was developed as an educational software engineering project with a focus on clean architecture and maintainable code.

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🧑‍💻 Developers

This project was collaboratively developed by:

• Seyyedeh Fargol Nazemzadeh
• Mahdi Emami
• Elaheh Ferdowsi

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✨ Features

👨‍💼 Administrator

• Create and manage employee accounts
• Create customer profiles
• View all customers and employees
• Manage account status
• Review and approve loan requests
• Monitor banking operations

👨‍💻 Employee

• Register new customers
• Create bank accounts
• Manage customer information
• Process transactions
• Review loan requests
• Access customer account details

👤 Customer

• View personal accounts
• Check account balances
• Deposit funds
• Review transaction history
• Request loans
• View loan status
• Change password
• Update phone number
• Close accounts

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🔐 Security Features

• User authentication system
• Password hashing using OpenSSL
• Session management
• Role-based access control (RBAC)
• Protected access to sensitive operations

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🏗️ Software Architecture

The project follows a layered architecture to improve maintainability and scalability.

Core Layers

• Entities Layer – Business objects and domain models
• Repository Layer – Data access abstraction
• Database Layer – Persistent storage management
• Service Layer – Business logic implementation
• Session Layer – Authentication and user session handling

Design Principles

• Object-Oriented Programming (OOP)
• Separation of Concerns
• Dependency Injection
• Repository Pattern
• Modular Design

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🛠️ Technologies

Technology	Purpose
C++	Core application development
OpenSSL	Password hashing and security
Boost.DI	Dependency Injection
STL	Data structures and utilities

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📂 Project Structure

Bank-Management-System/
│
├──Bank/
│   ├── Header/                         # Header files and core interfaces
│   │   ├── Account.h
│   │   ├── AccountRepository.h
│   │   ├── AccountDatabase.h
│   │   ├── Loan.h
│   │   ├── LoanRepository.h
│   │   ├── LoanDatabase.h
│   │   ├── Transaction.h
│   │   ├── TransactionRepository.h
│   │   ├── TransactionDatabase.h
│   │   ├── User.h
│   │   ├── UserRepository.h
│   │   ├── UserDatabase.h
│   │   ├── UserService.h
│   │   ├── UserSession.h
│   │   ├── StringHasher.h
│   │   │
│   │   ├── BaseEntity.h
│   │   ├── BaseRepository.h
│   │   ├── BaseDatabase.h
│   │   └── Enumerations
│   │       ├── RoleEnum.h
│   │       ├── GenderEnum.h
│   │       ├── AccountTypeEnum.h
│   │       ├── AccountStatusEnum.h
│   │       └── LoanStatusEnum.h
│   │
│   ├── Src/                            # Source code implementation
│   │   ├── Account.cpp
│   │   ├── AccountRepository.cpp
│   │   ├── AccountDatabase.cpp
│   │   ├── Loan.cpp
│   │   ├── LoanRepository.cpp
│   │   ├── LoanDatabase.cpp
│   │   ├── Transaction.cpp
│   │   ├── TransactionRepository.cpp
│   │   ├── TransactionDatabase.cpp
│   │   ├── User.cpp
│   │   ├── UserRepository.cpp
│   │   ├── UserDatabase.cpp
│   │   ├── UserService.cpp
│   │   ├── UserSession.cpp
│   │   ├── StringHasher.cpp
│   │   └── Bank.cpp
│   │
│   ├── Additional Sources/
│   │   └── di.hpp                      # Boost.DI dependency injection library
│   │
│   ├── Bank.vcxproj                    # Visual Studio project
│   ├── Bank.vcxproj.filters
│   └── Bank.vcxproj.user
│
├── x64/
│   └── Debug/
│       ├── Accounts.txt
│       ├── Bank.pdb
│       ├── Loans.txt
│       ├── Transactions.txt
│       └── Users.txt
│
├── BankManagementSystemDiagram.pdf
├── BankManagementSystemUML.pdf
├── Bank.sln                            # Solution
└── README.md

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💡 Example Workflow

Customer Registration

Employee
   ↓
Create Customer
   ↓
Create Account
   ↓
Customer Login

Loan Processing

Customer
   ↓
Submit Loan Request
   ↓
Employee Review
   ↓
Administrator Approval
   ↓
Loan Activation

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🚀 Build & Run

Requirements

• Visual Studio
• C++17 or later
• OpenSSL

Build

Clone the repository:

git clone https://github.com/Fargolnz/Bank-Management-System.git

Open the solution in Visual Studio and build the project.

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🎯 Learning Objectives

This project demonstrates:

• Object-Oriented Design
• Software Architecture
• Dependency Injection
• Repository Pattern
• Authentication & Authorization
• Banking System Workflows
• Secure Password Management

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📚 Future Improvements

Potential future enhancements include:

• Graphical User Interface (GUI)
• Database Integration (MySQL/PostgreSQL)
• Online Banking Features
• REST API Support
• Transaction Auditing
• Multi-factor Authentication

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🎓 Academic Project

This project was developed as part of the Advanced Programming course to apply architectural patterns and object-oriented development techniques in a real-world banking scenario.

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🙏 Acknowledgments

• Faculty of Farabi, University of Tehran
• Advanced Programming Course
• Academic Year 1401–1402