What are the main advantages and disadvantages of using the MVVM architectural pattern?

Advantages of MVVM:

• Clear separation of responsibilities between the View, ViewModel, and Model.
• Improved testability, as the logic is concentrated in the ViewModel, which is UI-independent.
• Simplification of support and extension of the application.
• Ability for two-way data binding, which facilitates synchronization between UI and data.

Disadvantages of MVVM:

• Increased architecture complexity for simple applications.
• Need to learn the pattern and data binding tools.
• Possible increase in code volume due to the creation of ViewModels and bindings.

Example: In a WPF application, the ViewModel contains properties and commands bound to the View via data binding, which allows the UI to update automatically when data changes.