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.

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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.

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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.

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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.

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How to Run 🚀

Prerequisites

• Install .NET SDK.

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.