MVC in AJS

Introduction of MVC in AJS

• MVC stands for Model View Controller. 
• It is still used today in web development.

Definition of MVC in AJS

• MVC is an industry-standard software design pattern for developing web and desktop applications.
• AngularJS is an MVC-based framework for front-end web application development.
• MVC is a fundamental design paradigm of AngularJS that helps structure and organize code more effectively. 

Characteristics of MVC in AJS

• MVC is a popular framework for web development because it isolates the application logic from the user interface layer and supports the separation of concerns.
• MVC helps keep code organized, modular, and easier to manage. 
• MVC  provides a logical structure for organizing code, which makes it easier to maintain, update and extend applications.

The Architecture of MVC in AJS

• A Model View Controller pattern is made up of the following three parts:−
  • View

• • Controller
    • This layer acts as a middleman between the Model and the View.
    • It is considered as the top level of the MVC pattern which includes software codes that control or regulate the interactions between the Model and View.
    • This layer lies in the Business Logic or Application Layer.
    • They primarily/normally use script-based template systems such as JSP, ASP, Node JS, and PHP, and very easy to integrate with AJAX technology.
    • This layer acts as the core engine of the system—it processes requests, applies validation rules, executes business operations, and orchestrates communication between the user interface and the database.
    • The controller part of codes responds to user input and performs interactions on the data model objects.
    • It receives user input from the View, processes it (sometimes using the Model), and returns the result to the View.
    • It mainly includes the processing codes using certain back-end languages.
  • Model
    • It is the bottom level of the MVC pattern responsible for maintaining data in databases usually.
    • This level is in the Data Layer, managed by different types of Databases. This database component is tasked with securely storing, retrieving, and managing all records, and related metadata. 
    • This layer represents the data and business logic of the application.
    • It interacts with the database and handles data-related operations (like fetching, updating, deleting, etc.).