What are bugs, defects, and errors?

Question

Accepted Answer

Bugs, defects, and errors are all issues in software development that can cause problems in the functionality of a program.

A bug is a coding mistake that causes unexpected behavior in a program.
A defect is a flaw in the design or functionality of a program.
An error is a mistake made by a user or a program that causes the program to fail.
All three can cause issues in the functionality of a program and need to be identified and fixed.
Examples: A bug could be a typo in the code that causes a program to crash. A defect could be a feature that doesn't work as intended. An error could be a user entering incorrect data into a form.

Accepted Answer

bug is the informal name of defect.

any feature when it is not working according to customer requirement is a defect.

Mistake done by the programmer at the time of programming is called error

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