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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Special Cases in Economic Life
There are two special cases to consider in economic-life calculations. The first special case is when the asset's annual operating and maintenance costs stay constant over its life and the salvage value also stays constant. This is common with purchased software where the salvage value is usually nearly zero (it's hard to sell used software to someone else) and the operating and maintenance costs will be relatively steady. In this case, the longer the asset stays in service, the lower its total AE(i) costs will be, so the economic life will be the same as its physical service life. For hardware, the physical service life ends when it just can't be repaired any longer (e.g., it's worn out beyond repair or the replacement ...
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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.