Bug will go through a series of process New bug is created and then developer picked up whether to reject, accept or defer If its rejected, sometimes its human error and will not be fix If its accept, understand that it has affected the end to end flow and dev needs to debug it If its deferred, its somehow a bug that is not find in the acceptance criter and will be fix later or created as a new enhancement Once developer fix, tester will retest and verified to close. Ensure with evidence that the but will not happen again