FrameWork

What is a Framework?

A framework is a foundation or skeleton for software development. It provides:

A standard way to build and deploy applications

Pre-written code for common tasks (e.g., logging, security, DB connection)

An enforced design pattern or architecture (like MVC, MVVM, etc.)

✅ Think of it like a "mold" or "blueprint" you must fit your code into.

Framework Architecture
Frameworks often follow certain design patterns. Common ones include:

1. MVC (Model-View-Controller) Model → handles data and business logic

View → displays the UI

Controller → handles user input and connects Model & View
📌 Used in: Spring MVC, Django, Laravel, Ruby on Rails

1. MVVM (Model-View-ViewModel) Used in front-end frameworks like Angular and in mobile apps (e.g., Android)

✅ Benefits of Using Frameworks
Speed: You don't build everything from scratch.

Consistency: Uniform code structure and behavior.

Scalability: Built-in support for complex features (routing, caching, ORM).

Security: Many frameworks come with protections (e.g., against SQL injection).

Community Support: Documentation, plugins, and help from other developers.

🔄 Real-time Example: Java Framework (Spring Boot)
Let’s say you're building a Banking Application.

Without a framework:

You write code to connect to the database manually

Set up your own logging, request handling, and user session

With Spring Boot:

You get REST APIs, logging, security, database connection, dependency injection—all pre-configured.