How can user access be managed for critical cases in Pega applications?

Managing user access for critical cases in Pega applications involves defining and controlling what users can do within the application based on their roles. The correct answer centers on the use of roles and associated privileges, as this framework allows organizations to establish specific permissions and access levels for various users.

By creating different roles within Pega, administrators can allocate privileges that define what actions and data each user can access or modify. This is particularly important for critical cases, where only certain users should have the ability to view or edit sensitive information. Roles and privileges ensure that the right employees have the appropriate level of access necessary to perform their duties effectively while maintaining security and compliance.

In contrast, other options do not effectively manage access in the context of Pega applications. Assigning roles based on IP addresses may limit access flexibly and could create security vulnerabilities. Automated email notifications do not control access but rather provide information updates, while managing sessions via cookies is focused on session handling rather than access management. Thus, the use of roles and associated privileges stands out as the correct choice for managing user access to critical cases in Pega applications.