What user action should be taken to apply changes in processing parameters?

The appropriate action for applying changes in processing parameters is to pause the job to modify those parameters. This is because many systems require an active job to be in a paused or stopped state before modifications can be made to its parameters. This ensures that the changes can be implemented without any inconsistencies or errors that might arise from altering parameters while the job is still running.

Pausing the job allows the system to safely handle the ongoing processes and apply the new parameters seamlessly. Once the necessary adjustments are made, the job can be resumed with the updated settings, ensuring optimal processing without interruption.

Other options, such as completing the existing job before creating a new one, do not allow for immediate changes to the ongoing processes, which can delay efficiency. Submitting a request to the system administrator might introduce unnecessary overhead and delay in the modification process. Adjusting parameters without pausing the job could lead to data integrity issues or operational errors, as running jobs often cannot accommodate changes in parameters dynamically. Thus, pausing the job is the most effective and reliable method to ensure that changes are applied correctly.