Bug Tracking Software is used by developers to record defects and changes in software products. Bug-tracking solutions are designed so that any member of the development team can access the bug database to log bugs and make changes. A record of all changes is kept, including time of original bug identification, bug description, changes / fixes applied, as well as the developer who made the entry or change. Bugs can be categorized based on criteria such as urgency or location, and hence can be quickly sorted according to query.