Bank System Project

Overview

The Bank System is a robust, object-oriented project developed in C++ utilizing Object-Oriented Design (OOD) principles. It features functionalities for user authentication, role-based permissions, and account transfers, all built with a focus on scalability and security. The permission system is implemented using binary system data structures and algorithms (DSA).

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Features

1. User Authentication

• Login: Secure user authentication with username and password.
• Logout: Ensures active sessions are terminated securely.

2. Role-Based Permissions

• Admin Role:
  • Manage users (add, update, delete accounts).
  • View all transactions.
  • Generate system reports.
• Standard User Role:
  • View account details.
  • Perform balance inquiries.
  • Transfer funds to other accounts.

3. Account Transfers

• Secure fund transfers between accounts.
• Logs and tracks each transaction for transparency.

4. Permission Management

• Built using binary system data structures.
• Flexible system to assign and manage roles dynamically.

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Implementation Details

Object-Oriented Design Principles

The project adheres to the following principles:

• Single Responsibility Principle (SRP): Each class has a single, well-defined responsibility.
• Open/Closed Principle (OCP): Classes are open for extension but closed for modification.
• Liskov Substitution Principle (LSP): Ensures derived classes can substitute their base classes without altering functionality.
• Interface Segregation Principle (ISP): Interfaces are client-specific to avoid unnecessary dependencies.
• Dependency Inversion Principle (DIP): High-level modules are not dependent on low-level modules; both rely on abstractions.

Technology Stack

• Programming Language: C++
• Data Structures: Binary system for permission management.

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📂 Project File Structure

Business (Logic) Layer

This layer contains the core logic and functionality of the system.

• Client.h: Manages client-related operations.
• Currency.h: Handles currency-related operations.
• Person.h: Abstract representation of a person in the system.
• User.h: Defines user-specific functionalities.

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Interface Layer

This layer consists of all the UI screens for interacting with the system.

Client Screens

• AddNewClientScreen.h: Interface for adding a new client.
• ClientListScreen.h: Interface for displaying a list of clients.
• DeleteClientScreen.h: Interface for deleting a client.
• FindClientScreen.h: Interface for searching for a client.
• UpdateClientScreen.h: Interface for updating client details.

Currency Screens

• CurrenciesListScreen.h: Interface for listing available currencies.
• CurrencyCalculatorScreen.h: Screen for calculating currency conversions.
• CurrencyExchangeMainScreen.h: Main interface for currency exchange.
• FindCurrencyScreen.h: Screen for searching currencies.
• UpdateCurrencyRateScreen.h: Interface for updating currency rates.

User Screens

• GlobalUser.h: Manages global user operations.
• InterfaceCommunication.h: Handles communication between interface layers.
• LoginScreen.h: User login screen.
• MainScreen.h: Main screen after login.
• Screen.h: Base class for all screens.

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Libraries

This layer contains utility files and helper functions used across the project.

• Date.h: Manages date-related functionalities.
• Input_Validation.h: Contains input validation utilities.
• MainComponents.h: Core components shared across layers.
• Period.h: Represents a period for financial operations.
• String.h: Provides string-related helper functions.
• Utility.h: General-purpose utility functions.

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Resource Files

This section includes assets, configurations, and additional files required by the system.

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Source Files

Contains the implementation of system functionalities and integrations.

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Getting Started

Prerequisites

• C++ Compiler (e.g., GCC, Clang, or Visual Studio Compiler)
• CMake (optional, for build automation)

Installation

1. Clone the repository:

   git clone https://github.com/yourusername/bank-system.git

2. Navigate to the project directory:

   cd bank-system

3. Compile the project:

   g++ -o BankSystem src/*.cpp

4. Run the executable:

   ./BankSystem

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Usage

Admin Workflow

1. Login as Admin.
2. Manage user accounts (add/update/delete).
3. View all transactions and generate system reports.

User Workflow

1. Login with valid credentials.
2. View account balance.
3. Transfer funds securely to other accounts.

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Future Enhancements

• Encryption: Enhance security by encrypting sensitive data.
• Database Integration: Replace file-based storage with an SQL/NoSQL database.
• Mobile App Support: Extend functionality to mobile platforms.

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Contribution

Contributions are welcome! Please fork the repository and create a pull request with detailed descriptions of your changes.

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License

This project is licensed under the MIT License - see the LICENSE file for details.

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Contact

For any inquiries or feedback, please reach out to:

• Name: Zeyad Mohamed Abdou
• Email: zeyadana2020@gamil.com