Model View Contoller – a … design pattern often used by applications that need the ability to maintain multiple views of the same data.1
Model
- Encapsulates core application data and functionality Domain Logic/Business Logic.
- Since the model must be independent, it cannot refer to either the view or controller portions of the application.
View
- obtains data from the model and presents it to the user.
Controller
- receives and translates input to requests on the model or the view.
Benefits of MVC
- Substitutable user interface
Different views and controllers can be substituted to provide alternate user interfaces for the same model. - User interface components
- Multiple simultaneous views of the same model
- Syncronized views
- Easier user interface changes
- Easier testing
Drawbacks of MVC
- Increased complexity
- Close coupling of views and controllers to model
- Potential for excessive updates
- Close coupling between view and controller
Summary of article by the Web Application Component Toolkit
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