The process of finding and removing errors in the program is called debugging.A debugger is a program that allows you to step through another program one line at a time. OR Debugging, in computer programming and engineering, is a multistep process that involves identifying a problem, isolating the source of the problem, and then either correcting the problem or determining a way to work around it. The final step of debugging is to test the correction or workaround and make sure it works.