Can you describe the main features of the MVVM architectural pattern?

MVVM (Model-View-ViewModel) is an architectural pattern that divides the application logic into three components:

• Model — the data and business logic layer, responsible for storing and processing data.
• View — the user interface, displays data and responds to user actions.
• ViewModel — the intermediary between Model and View, contains presentation logic, transforms data from Model for the View, and handles user events.

Main differences of MVVM:

• ViewModel does not contain references to the View, which facilitates testing.
• Using data binding allows automatic UI updates when data in the ViewModel changes.
• Clear separation of responsibilities improves code maintainability and scalability.

In Android, MVVM is often implemented using LiveData and ViewModel from Android Architecture Components, which simplifies UI state management and lifecycle handling.