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Multi-Layer Architecture Project 🏗️

This project implements a Multi-Layer Architecture using C#. It demonstrates how to build scalable, maintainable, and modular software applications by separating concerns into distinct layers. The architecture follows best practices for software development, ensuring clarity and flexibility.

Features ✨

  • Data Layer

    • Handles data persistence and retrieval.
    • Simulated with in-memory data storage (or extendable for database integration).

  • Business Layer

    • Encapsulates business logic and core operations.
    • Acts as an intermediary between the data layer and presentation layer.

  • Presentation Layer

    • Provides a user interface through a console-based application.
    • Handles user inputs and displays output.

  • Utility Layer

    • Includes helper classes and functions for validations and common operations.

Project Structure 🏗️

The project is divided into the following layers:

  1. Presentation Layer

    • Manages user interaction via console menus.
    • Displays output and collects input from the user.

  2. Business Layer

    • Implements application logic such as validations, calculations, and processing.
    • Serves as a bridge between the presentation and data layers.

  3. Data Layer

    • Contains repositories and methods for data management.
    • Responsible for storing and retrieving data from in-memory storage (or databases in future integrations).

  4. Models

    • Defines the data structure of the application, such as User, Product, etc.
    • Represents real-world entities with properties and methods.

  5. Utility Layer

    • Provides reusable components such as validators and formatters.

Key Concepts Demonstrated 📚

  • Separation of Concerns:
    Ensures each layer has a single responsibility.

  • Scalability:
    Modular structure allows for easy extension or replacement of layers.

  • Testability:
    Isolated logic in the business layer simplifies unit testing.

  • Maintainability:
    Well-defined boundaries between layers make the application easy to update and debug.

How to Run 🚀

Prerequisites

Steps to Run

  1. Clone the repository: 
    git clone https://github.com/dogaaydinn/MultiLayerArchitecture.git
  2. Open the solution file in Visual Studio or your preferred C# IDE.
  3. Build the solution to restore dependencies and ensure there are no errors.
  4. Run the application: Through the IDE, press the run/debug button. Or, execute from the terminal: 
     dotnet run

Usage 📖

Menu Navigation

Upon running the application, you'll see a main menu allowing you to:

  • Manage entities such as users, products, or other relevant data (customizable).
  • View, add, update, and delete records.
  • Perform operations defined in the business layer (e.g., calculations or validations).

Data Validation

  • Input data is validated before being processed.
  • Custom error messages guide users when invalid input is entered.

Contribution 🤝

Contributions are welcome! Here's how you can help:

  1. Fork the repository.
  2. Create a feature branch: 
     git checkout -b feature/your-feature-name
  3. Commit your changes and push them to your fork. 4.Open a pull request with a detailed description of your changes.

License 📜

This project is licensed under the MIT License. You are free to use, modify, and distribute this project as per the terms of the license.