|(humour)||Ninety-Ninety Rule - "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".|
An aphorism attributed to Tom Cargill of Bell Labs, and popularised by Jon Bentley's September 1985 "Bumper-Sticker Computer Science" column in "Communications of the ACM". It was there called the "Rule of Credibility", a name which seems not to have stuck.