Defect Density: This is how often defects appear in certain areas of your software. If you’re seeing a lot of issues in one area, it’s a red flag. This is your way of saying, “Something’s off here. Let’s focus on this area more.”
Test Coverage: Pretty simple. How much of your software is getting tested? If you’re testing all the features, awesome. If not, you might want to consider testing the riskier areas—because that's where bugs are most likely to pop up.
Pass/Fail Rates: This one is super simple but really useful. If your tests are passing 90% of the time, great. But ask yourself—are they too easy? Are you testing the hard stuff? Or just the easy paths? Maybe it’s time to shake things up.
Test Execution Time: We all love fast testing, right? If your tests are running slow, that’s time you could be spending on other things. Streamlining your test execution is key.