What is the primary function of a harness rule in Pega?

The primary function of a harness rule in Pega is to create the top-level page that a user interacts with. This rule serves as the main container for the user interface, bringing together various UI elements, sections, and layouts into a cohesive view. When a user accesses an application, the harness is the initial point of interaction, determining how the information is presented and how users navigate through the application.

Harness rules facilitate the organization of UI components and define structure, which is essential for a seamless user experience. By establishing the main interface for end-users, harness rules are foundational in setting up the application's look and feel. They are a crucial element in building Pega applications as they dictate the overall user interface layout and management of different user interactions.

While other options may involve aspects of UI organization, user permissions, or responsive design, they do not embody the primary purpose of harness rules as comprehensively as creating the top-level user interface.