> 29. (von Tiesenhausen's Law of Program Management) To get an accurate estimate of final program requirements, multiply the initial time estimates by pi, and s

> 29. (von Tiesenhausen's Law of Program Management) To get an accurate estimate of final program requirements, multiply the initial time estimates by pi, and slide the decimal point on the cost estimates one place to the right. I was once commenting to a friend that my project was taking about 12 times longer than planned, and he said, "ok, about a factor of 4pi". All my time estimates get a factor of 4pi increase now.