presentasjonsmodell

A presentasjonsmodell, or presentation model, is a software design pattern used in graphical user interfaces. It acts as an intermediary between the user interface and the application's business logic or data. The primary purpose of a presentasjonsmodell is to simplify the development of user interfaces by encapsulating the data and presentation logic for a specific view. It exposes data and commands in a format that is easily consumed by the UI.

This pattern helps to decouple the UI from the underlying data and logic, making the code more testable and maintainable. For example, a presentasjonsmodell might hold the data to be displayed in a list, along with methods to refresh that data or perform actions when a user interacts with the list. It can also handle complex UI logic, such as formatting data for display or managing the enabled/disabled state of UI elements, without cluttering the UI code itself.

Key benefits include improved testability, as the presentasjonsmodell can be tested independently of the actual UI components. It also promotes code reuse and makes it easier to support multiple views of the same data. This pattern is commonly associated with frameworks that emphasize declarative UI development and data binding, where the UI automatically updates when the presentasjonsmodell changes.