, an acronym for keep it simple, stupid
, is a design principle noted by the U.S. Navy
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 unnecessary complexity should be avoided. The phrase has been associated with aircraft engineer Kelly Johnson
The term "KISS principle" was in popular use by 1970.
Variations on the phrase include: "Keep it simple, silly", "keep it short and simple", "keep it simple and straightforward",
"keep it small and simple", "keep it simple, soldier",
or "keep it simple, sailor".
While popular usage has transcribed it for decades as "Keep it simple, stupid", Johnson transcribed it as "Keep it simple stupid" (no comma), and this reading is still used by many authors.
The principle is best exemplified by the story of Johnson handing a team of design engineers a handful of tools, with the challenge that the jet aircraft they were designing must be repairable by an average mechanic in the field under combat conditions with only these tools. Hence, the "stupid" refers to the relationship between the way things break and the sophistication available to repair them.
The principle most likely finds its origins in similar minimalist
concepts, such as Occam's razor
, Leonardo da Vinci
's "Simplicity is the ultimate sophistication", Shakespeare
's "Brevity is the soul of wit", Mies Van Der Rohe
's "Less is more
", Bjarne Stroustrup
's "Make Simple Tasks Simple!", or Antoine de Saint Exupéry
's "It seems that perfection is reached not when there is nothing left to add, but when there is nothing left to take away". Colin Chapman
, the founder of Lotus Cars
, urged his designers to "Simplify, then add lightness". Heath Robinson
machines and Rube Goldberg's machines
, intentionally overly-complex solutions to simple tasks or problems, are humorous examples of "non-KISS" solutions.
A variant – "Make everything as simple as possible, but not simpler" – is attributed to Albert Einstein
, although this may be an editor's paraphrase of a lecture he gave.
In film animation
In software development
- ^ The Routledge Dictionary of Modern American Slang and Unconventional English, Tom Dalzell, 2009, 1104 pages, p.595, webpage: BGoogle-5F: notes U.S. Navy "Project KISS" of 1960, headed by Rear Admiral Paul D. Stroop, Chicago Daily Tribune, p.43, 4 December 1960.
- ^ The Concise New Partridge Dictionary of Slang, Eric Partridge, Tom Dalzell, Terry Victor, Psychology Press, 2007, p.384.
- ^ a b Clarence Leonard (Kelly) Johnson 1910–1990: A Biographical Memoir (PDF), by Ben R. Rich, 1995, National Academies Press, Washington, DC, p. 13.
- ^ Pit & Quarry, Vol. 63, July 1970, p.172, quote: "as in every other step of the development process, follow the KISS principle — Keep It Simple, Stupid."
- ^ "Kiss principle definition by MONASH Marketing Dictionary". 1994-11-18. Retrieved 2016-01-24.
- ^ Officers' Call. Print Media Branch, Command Information Unit, Office, Chief of Public Affairs, HQDA. 1986. LCCN 88655070. Remember the adage KISS; Keep it Simple, Soldier
- ^ Ram B. Misra (2004), "Global IT Outsourcing: Metrics for Success of All Parties", Journal of Information Technology Cases and Applications, volume 6 issue 3, page 21. Online version. Retrieved 2009-12-19.
- ^ "Everything Should Be Made as Simple as Possible, But Not Simpler". Quote Investigator.
Last edited on 5 April 2021, at 07:44
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