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In many of his writings, Roland Barthes suggested characteristics of the oral and visual culture. The distinction between the two preoccupied him.
Klingon is a language crafted by Marc Okrand, a linguist, for use by fictional characters. The popularity of Star Trek explains how Klingon spread around the world.
By eliminating sources of ambiguity and prescribing stylistic rules, controlled languages aim for improved readability. They are easier to maintain and they support computational processing, such as machine translation (cf. Willem-Olaf Huijsen, Introduction to Controlled Languages, a Webtext of 1996).