When u log the defect or bug u have to know whether status of the bugs. whether it is in retest rejected or still in confirmed stages. So knowing this bug tracking system will use
Using bug trackng system both testers/developers can know the status of the bug at every stage.starting from new status to close status. so the persos who are using this bug tracking sytem may know the status of the bug like is it fiexed or not is it closed or not. etc...
BTS: It's used to maintained the issues/bugs in one area so that we can track easily stages wise and it's a communicator between developer and tester to report the issues and all.
The role of Bug Tracking system is to track the bug. - To know the total bug raised. - To know the total bug functionality wise. - To know the status of the bug like Open New Reopen Fixed Resolved etc... - To know the priority wise bugs. - It is also used for various analytical studies. - The majority types of defects like functionality UI etc...