What is a primary use of user roles in the Liferay portal?

User roles in the Liferay portal are primarily used to assign specific permissions and access rights to users. This functionality allows administrators to define what actions users can perform within the portal, such as viewing, editing, or managing content and resources. By grouping users into roles and assigning those roles specific permissions, organizations can effectively manage user access in a secure and organized manner.

This capability is essential for maintaining control over sensitive information and ensuring that users can only access the features and content that are relevant to their responsibilities. Properly defined user roles help streamline the administration of the portal, allowing for a more tailored user experience based on the needs of different user groups.

The other options, while relevant to the overall functionality and features of Liferay, do not encapsulate the primary purpose of user roles as accurately as the ability to manage permissions and access rights.