The KISS (Keep It Simple, Stupid) principle is a process and design principle advising simplicity as a main goal and asset. Over the years, various expansions of the acronym "KISS" have been used and uncertainty exists about which of them, if any, was the original one.

The concept has a direct analogy with the Occam's razor and with Albert Einstein's maxim that "everything should be made as simple as possible, but no simpler".

Credit: http://en.wikipedia.org/wiki/KISS_principle