OpenCart Development Notes
Overview The OpenCart system follows the MVC (Model, View, Controller) pattern. A simple description of how this works is that a View determines the layout and appearance of a Web site, whereas the content itself is generated and inserted into the View by a Controller. A Model contains data objects that represent database entities being processed by the Controller.
With OpenCart, we have a more complicated implementation of the MVC pattern, mainly because a site’s appearance isn’t actually determined by a set of HTML/CSHTML files in the /views directory.