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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Expressing Estimate Uncertainty
In the typical software organization it's not at all unusual for a yearlong software project to be scheduled for completion precise to a single day at the very beginning of the project. For instance, “this project will finish on 21 Jan 20xx.” Think about the precision of this estimate as a percentage of the total project schedule. If finishing on 20 Jan would be considered “early” and finishing on 22 Jan would be considered “late,” the “on-time” window is the 24 hours of 21 Jan 20xx. Given a yearlong project, however, even allowing time off for weekends and holidays (there are typically 260 workdays in a work year) that's a precision of less than half of one percent.
In the 500-mile drive example, an average speed ...
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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.