Ninety-ninety Law - Tom Cargill

"The first 90% of the code accounts for the first 90% of the development time. The remaining 10% of the code accounts for the other 90% of the development time."

A good list of laws found here (old but good read):

  • 3
    I like the 80/20 law better ...

    But now that i'm thinking a little about it, i always wondered why debugging never fit the 80 / 20 model. Now i know.
  • 1
    Is it intentional that the development time adds up to 180%?
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