Recently a custom metric was presented to our team during a meeting about software quality.
The metric was: number of found bugs divided by the sum of dev time (aggregated as team average and also per developer)
How are those numbers calculated?
We have a team of testers which do manual testing (based on new features and test scenarios). If a bug is discovered, it will be tracked in our internal bug tracker. Additionaly, the overall dev time is recorded as well.
After doing some research in the net I couldn't find anything about such a metric. I would say that it is related to defect density (bugs per loc) but I'm not sure.
Does this kind of metric make sense? Does it measure dev quality or software testing quality? And is there a common term for this metric?