Requirement vs Criterion - What's the difference?

requirement | criterion |

As nouns the difference between requirement and criterion

is that requirement is a necessity or prerequisite; something required or obligatory while criterion is a standard or test by which individual things or people may be compared and judged.



(en noun)
  • A necessity or prerequisite; something required or obligatory.
  • Something asked.
  • (engineering) A statement (in domain specific terms) which specifies a verifiable constraint on an implementation that it shall undeniably meet or (a)'' be deemed unacceptable, or ''(b)'' result in implementation failure, or ''(c) result in system failure.
  • Usage notes

    * Adjectives often used with "requirement": stringent, complex, reasonable, mandatory, important, financial, medical, educational, physical, chemical * Verbs often used with "requirement": meet, comply with, satisfy, fulfill, impose, waive, abolish, drop, add, remove, fail to meet, ignore, understand, state, specify, increase, reduce, change, modify


    * (prerequisite) condition, prerequisite, necessity

    Derived terms

    * functional requirement * requirements engineering * requirements analysis



    Alternative forms

    * (nonstandard) * criterium


  • A standard or test by which individual things or people may be compared and judged.
  • *{{quote-magazine, date=2013-11-30, volume=409, issue=8864, magazine=(The Economist), author=Paul Davis
  • , title= Letters: Say it as simply as possible , passage=Congratulations on managing to use the phrase “preponderant criterion ” in a chart (“ On your marks”, November 9th). Was this the work of a kakorrhaphiophobic journalist set a challenge by his colleagues, or simply an example of glossolalia?}}

    Usage notes

    * The plural form criterions also exists, but is much less common. * The form criteria is sometimes used as a nonstandard singular form (as in a criteria'', ''this criteria , and so on), with corresponding plural form criterias. In this use, it sometimes means “a single criterion”, sometimes “a set of criteria”.