August 2004
Intermediate to advanced
656 pages
15h 28m
English
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Estimation by Analogy
A somewhat more sophisticated method that is usually more accurate than expert judgment is estimation by analogy. This method is based on the assumption that if the thing being estimated is a lot like something we already know about, we can base the estimate of the new thing on our experience with the old thing together with allowances for known differences.
Suppose you are still at the library automation company. It's now several months later. The company won the contract on the first library system and has already completed that work. Another RFP shows up for automating a different library system with 15 branch libraries and 60,000 books. Having the experience of the first project, you might now know that it actually cost ...
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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.