MVVM Pattern
The Model-View-ViewModel (MVVM) pattern is a software architectural pattern that separates the development of the graphical user interface from the business logic or back-end logic. It divides an application into three interconnected components: Model (data and business logic), View (UI elements), and ViewModel (mediator that handles presentation logic and data binding). This pattern is particularly popular in client-side applications, such as those built with WPF, Xamarin, or JavaScript frameworks, to improve testability and maintainability.
Developers should learn and use the MVVM pattern when building complex, data-driven user interfaces that require clear separation of concerns, especially in desktop, mobile, or web applications using frameworks like WPF, Xamarin, or Angular. It is ideal for scenarios where you need to decouple UI code from business logic to facilitate unit testing, enable better team collaboration, and support data binding for dynamic updates. For example, in enterprise applications with rich UIs, MVVM helps manage state and user interactions efficiently.