As for "the points to judge the implementation of monitoring," you should understand the points to judge from the procedure for problem-solving.
In the items from 1 to 8, when you come to the phase of "2. Find out a problem," the phase of "3. Confirm a problem," and the phase of "4. Pursue a cause," confirm what to notice in order to judge the implementation of monitoring.
This example shows the necessity of monitoring which we can read from ACD report.
*Read out from the top to the bottom of a page.
It is necessary for you to check the reason why you should pay attention to these events, by monitoring.