For want of a nail, the shoe was lost; for want of a shoe, the horse was lost;
For want of a horse, the rider was lost; for want of a rider, the message was lost;
For want of a message the battle was lost; for want of a battle, the kingdom was lost . .
I am sure many of you would have discovered these if you
have installed Win 8.1 but I wanted to quickly share with others the cool
features that IE 11 brings out the box as part of developer toolbar.
Highlighting few of them below:
1.Cross Browser/Platform testing: This is
cool to see how you site renders on different browser (not just limited to
different versions of IE) and OS’s as well as different resolutions. This
will be quite handy for testers.
2.UI Responsiveness: Looks pretty nice for
performance benchmarking and quick assessment of performance.
I was talking to a colleague today around difference among these test metrics and I am sharing it with you all if it helps :)
Test Case Effectiveness =
Total defects found by test cases / Total defects**
e.g. if 80 defects were found by
test cases and 10 were through ad hoc testing and 10 were leaked to UAT / Prod
then TC effectiveness is 80 %
** This includes all defects found post build phase
(after test cases are designed) so if buddy testing was done then sure it
should be added to total defects as we will use our test cases to do buddy
testing. Total defects will also include the defects found in UAT
and post production as they are leakages.
Test Efficiency = No. of
valid defects / Total Defects found by test team (including invalid
e.g. if 90 defects out of 100
were accepted then Test efficiency is 90 %
This gives us the rework and
wastage due to invalid bugs that we rejected
Defect Removal Efficiency
(DRE) = Total defect found before
delivery (through review, inspection, testing etc) / Total defect during
Here we are saying doesn’t
matter if we found them by test case or reviews, if we found them before UAT
then its good and the defects that are found in UAT and Prod will be added to
denominator and will show our DRE.