The system visualizes the approval process in the "Approval progress" field, which is shown on the approval sheet form or in the modules that correspond to the artifacts, for example Requirement documents.
You can configure an automatic notification to approval Participants that their approval is expected on particular project artifacts. To do this, go to the "Assigned work" module, set the filter Assignee = Current, Type = Approval, and use "Send by email on a schedule" to create a recurring job, as described in the example Mailing to clarify the status of stories