MVCMVT

MVCMVT is a software architectural pattern that combines elements of Model-View-Controller (MVC) and Model-View-ViewModel (MVVM) patterns. Its primary goal is to enhance separation of concerns and improve testability in application development, particularly for user interfaces.

In MVCMVT, the Model represents the application's data and business logic, similar to traditional MVC and MVVM. The View is responsible for the user interface, displaying data to the user and capturing user input. The Controller acts as an intermediary between the View and the Model, handling user input, updating the Model, and selecting the appropriate View to display.

The distinct component in MVCMVT is the ViewModel. The ViewModel acts as an abstraction of the View. It exposes data from the Model in a format that is easily consumable by the View and also handles presentation logic. Crucially, the ViewModel is typically designed to be testable independently of the View, which is a significant advantage for automated testing. This allows developers to test the logic and data manipulation without needing to render the UI.

MVCMVT aims to provide a more robust structure for building complex user interfaces by clearly defining responsibilities for data management, presentation, and user interaction. It leverages the strengths of both MVC and MVVM, offering a balance between direct controller interaction and the enhanced testability provided by the ViewModel. This pattern is often employed in frameworks that support data binding and reactive programming paradigms, facilitating smoother updates between the ViewModel and the View.