September 2003
Intermediate to advanced
272 pages
8h 36m
English
Content preview from The Laws of Software Process
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8
THE LAWS OF SOFTWARE PROCESS
Exhibit 6. The effects of 2OI.
Inaccurate Estimates
When projects are started, an estimation of effort, schedule, and cost that is used to
define the project expectations and commitment is usually prepared. Experienced
developers know that their best efforts at estimating the effort are always less than the
task turns out to require. Why? Because of Second Order of Ignorance, we can only
estimate based on what we know plus what we know we need to know (0OI and 1OI). It
is not possible to estimate based on what we do not know we do not know any more than
a scientist can design an experiment for something for which she ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.