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ASD Simplified Technical English

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This is an international specification for the preparation of maintenance documentation in a controlled language developed by the AeroSpace and Defence Industries Association of Europe )ASD) and called specification ASD-STE100. It is a set of Writing Rules and a Dictionary of controlled vocabulary. The Dictionary has sufficient words to express any technical sentence. The words were chosen for their simplicity and ease of recognition. When there are several words in English for a certain thing or action (synonyms), this Specification selects one of these synonyms to the exclusion of the others (whenever possible, "one word - one meaning"). For example, "start" was chosen instead of "begin", "commence", "initiate", or "originate". When there is a choice between American English and British English words and spelling, the American version is used (Merriam-Webster’s Dictionary). When there are several possible definitions of a word in English, the Specification selects one of these definitions to the exclusion of the others (whenever possible, "one word - one meaning"). For example, "to fall" has the definition of "to move down by the force of gravity", not "decrease". See: http://www.asd-ste100.org

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