Hi @Yuvaraj, Pega implements the MVC (Model-View-Controller) architecture as:  Model: The model is represented by the data layer, which includes data objects, data pages, and integration connectors.  View: The view is made up of Sections, Harnesses, and other UI components that define how the application presents the data to the user.  Controller: The controller logic is handled by Activities and Flows which dictate the business logic and the order of operations.By adhering to MVC principles, Pega applications are better organized, easier to maintain, and more scalable.

Hope this helps.