Published on Aug 17, 2021 | By Tesvan team
The variation between the actual results and expected results is known as defect. If a developer finds an issue and corrects it by himself in the development phase then it’s called a defect.
If testers find any mismatch in the application/system in testing phase then they call it as Bug. As I mentioned earlier, there is a contradiction in the usage of Bug and Defect. People widely say the bug is an informal name for the defect.
We can’t compile or run a program due to coding mistake in a program. If a developer unable to successfully compile or run a program then they call it as an error.
Once the product is deployed and customers find any issues then they call the product as a failure product. After release, if an end user finds an issue then that particular issue is called as failure