Program documentation is the written description of the algorithm(s), coding method, design,
testing, and proper use of a particular computer program. It is valuable for those who use the
program on a day-to-day basis and also for the programmer(s) who are meant to correct,
modify, and update the computer program.
Reliable documentation is a must for an earnest programmer. The availability of thorough
documentation helps not only in keeping track of the various aspects of a computer
application but also helps in improving the overall quality of the same. The main focus of
program documentation is development, maintenance, and knowledge transfer to other
developers.
self-contained set of statements usable from anywhere in a computer program is known as a
subroutine. Once the subroutine successfully performs its intended task it returns the control
to the section of the program called the subroutine.
saqib
29, Oct 20