Catalyst is a complete web application framework for Perl that follows the Model-View-Controller (MVC) design pattern. MVC separates an application into three main components: the model, which represents the data; the view, which is the user interface; and the controller, which handles input and converts it to commands for the model and view. In a Catalyst application, models are represented by classes that interact with the data layer, views are generally HTML templates that display information to users, and controllers contain the business logic and coordinate the models and views. A basic request goes through the controller, which gathers data from the model, passes it to the view to be displayed, and can update the model. Catalyst supports