A simple sign of the KISS principle (excluding the last word) KISS, an acronym for "Keep it simple, stupid!", is a design principle first noted by the U.S. Navy in 1960.[1][2] First seen partly in American English by at least 1938, the KISS principle states that most systems work best if they are kept simple rather than made complicated; therefore, simplicity should be a key goal in design, and un
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