Using the approval progress widget is as easy as 1,2,3:

1. Add the widget to a live report page. Configure the settings of the widget (no scripting needed).
2. Instead of assigning persons to the requirement, you set attributes corresponding to their tasks.
3. Load the report page on regular intervals, take actions corresponding to findings of the widget.

Finding that could be found with corresponding reactions: see image

No discipline set; Requirements engineer (or other responsible) needs to review the requirements to set the attributes so the widget knows who should review.