August 2004
Intermediate to advanced
656 pages
15h 28m
English
Content preview from Return on Software: Maximizing the Return on Your Software InvestmentBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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The Cone of Uncertainty: Uncertainties Change over Time
The degree of uncertainty in any estimate depends on how much is known about the overall situation. You'll have a much better idea of your arrival time for the 500 mile drive when you're halfway there than you will before you even start driving. You'll have an even better idea when you're three fourths of the way there. You'll know exactly when you'll get there just as you arrive, and no sooner.
There are a number of different sources of uncertainty in software projects, including the following:
Will the customer want feature X or not?
If they decide to include feature X, how fancy will they want it to be?
Will they change their mind about feature X or how fancy they want it?
How will feature ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.