Change production code. Production code should not be modified by developers in any way. This goes against proper change control, can break other components in production, and can disrupt the standardization of code in production across the board.

In application development, good separation-of-duties practice states that the developer should not do what? - Change production code - Request management approval of a code change before developing the change - Perform unit tests - Pass the code to quality assurance and then to the librarian prior to its entry into production