[ef4]

> The development of the jet's Block II software is 90 to 120 days behind schedule, according to the two-star general. Because of this delay and the increased complexity of the jet's third and final software block, Lockheed Martin and the Defense Department have added additional resources...

1. If you think you're 90 to 120 days behind schedule, you really have no idea how far you're behind schedule.

2. Somebody forgot Brook's law.

[cubicle67]

dave's law - Software development always takes 50% longer than expected, even when you allow for dave's law

[hackmiester]

"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 percent of the development time." —- Tom Cargill, Bell Labs