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The chronic underestimation of development effort has led to the coinage and popularity of numerous humorous adages, such as ironically referring to a task as a "[[small matter of programming]]" (when much effort is likely required), and citing laws about underestimation:
* [[Ninety–ninety rule]]:
{{quotation |<!-- PLEASE DON'T CHANGE THIS QUOTE WITHOUT CHECKING THE ORIGINAL SOURCE! THE %'S ARE NOT SUPPOSED TO TOTAL 100%! -->The first 90 percent of the code accounts for the first 90 percent of the development time. The remaining 10 percent of the code accounts for the other 90<!-- YES THIS TOTALS 180%! THIS IS NOT AN ERROR! --> percent of the development time.<ref name="Bentley1985">{{cite journal|last= Bentley|first= Jon|year= 1985|title= Programming pearls|journal= Communications of the ACM|volume= 28|issue= 9|pages= 896–901|issn= 0001-0782|doi= 10.1145/4284.315122|s2cid= 5832776|format= fee required|doi-access= free}}</ref> |Tom Cargill|[[Bell Labs]]}}
* [[Hofstadter's law]]:
{{quotation|Hofstadter's Law: It always takes longer than you expect, even when you take into account Hofstadter's Law.|[[Douglas Hofstadter]]| ''[[Gödel, Escher, Bach: An Eternal Golden Braid]]''<ref>
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