what is defect life cycle?

The defect life cycle is:
first when the defect is found it is made note of. (this is called the New stage)
Then it is sent to the developer (this is called the Open stage)
Once the developer fixes and sends back to the tester (it is called as Fixed)
Now the tester checks if the bug had been fixed , if it is fixed (it is called Closed)

if the bug is not fixed it is returned back to the developer (this is called as Reopen)

Defects registration and tracking

•We use dedicated systems to record the defects identified in software applications. They allow tracking the life cycle of a bug from the moment of its detection up to the moment of its elimination from the product. All the members of the team involved in the project development process have access to these systems with the appropriate rights assigned to them. The client is a key participant and can follow the testing process as it progresses and enjoys a full awareness of quality changes occurring in the developed application.