The Project metrics tool can get you the state of the Project Tracker system on any given day. For example, the system can generate a report on how many P1 defects are open on all the days of the past week. However, it cannot report on how many of the P1s that were open yesterday were closed today or show the artifacts that were not attended to in the last month.
Assume that on Day 1 there are two P1s in NEW state and one P2 in NEW state. On Day 2 a new P1 is filed and one of the existing P1s was marked resolved. So if you generate a report on the issues that are open on Day 1 and Day 2 both will show the same count and it will indicate *no activity*. But in reality it is not true. See below how the chart will look like in both Day 1 and Day 2.
The reports should always represent the states that will correctly capture the activities. In this case you should also include the state of the defects in the report. See the report below that is taken on Day 2.
You get the following information from this chart.
There were four artifacts in total so one new defect is filed on Day 2.
One P1 is in 'Completed' status, so there was some progress made in resolving the issues.
Since the P2 count is unaffected and one P1 moved to 'Completed' status, the new Defect that got filed is P1 again. So the release owner should now be worrying ;)