Description: The Presentation Model is a design pattern that focuses on separating the representation of information from the user’s interaction with it. This approach allows business logic and user interface to be developed independently, facilitating the maintainability and scalability of applications. In this model, data presentation is managed through a specific layer, while the logic handling user interaction resides in another layer. This not only improves code organization but also enables different teams to work in parallel on different parts of the application. Additionally, the Presentation Model promotes component reuse, as the same presentation logic can be used in different contexts or applications. This pattern is particularly relevant in the development of applications where user experience is paramount and a clean, efficient interface is required. By implementing this model, developers can make changes to the interface without affecting the underlying logic, resulting in a more agile development process that is less prone to errors. In summary, the Presentation Model is a key tool in modern software design, allowing for a clear separation of concerns and better management of the application development lifecycle.
History: The Presentation Model originated in the 1990s as part of the evolution of design patterns in software development. While it cannot be attributed to a single creator, its popularization is due to the growing need to separate business logic from the user interface in complex applications. This pattern was influenced by other design patterns such as MVC (Model-View-Controller), which also seeks a separation of concerns but with a different focus on the interaction between components.
Uses: The Presentation Model is primarily used in the development of web and mobile applications, where user experience is crucial. It allows developers to create cleaner and more efficient user interfaces, facilitating the implementation of changes without affecting business logic. It is also applied in the development of various types of applications and management systems, where the separation of presentation logic and business logic improves code maintainability.
Examples: An example of the Presentation Model in use can be found in frameworks such as Microsoft WPF, where presentation logic is separated from business logic through the use of ‘ViewModels’. Another example is in modern web applications that use frameworks like Angular or React, where presentation logic is managed through components that interact with backend services without mixing presentation logic with business logic.
