MVC (Model-View-Controller)

In short, MVC is one way to construct graphical user interfaces (GUIs).

• The Model holds the internal information, in example, the options in a drop down menu, and which option is selected.
• The View is the graphical representation of the model, in example, a drop down menu with options the user can click on.
• The Controller receives information from the view and updates the model, and vice versa. In example, clicking on an option in the view informs the controller that "something has happened", and the controller marks the option in the model as being selected.