You allude to the difference between requirements and constraints. What you say is true, but also it's true that the Therac-25 was not designed to not output high power when an operator typed quickly.
"Quiet: The Power of Introverts in a World That Can't Stop Talking" by Susan Cain. This book made me think about my own thinking and social behavior patterns.
C'mon, don't you guys be so nitpicky... The comment above was made in the context of financial places, and is clearly referring to the "City" of London, as they call the financial hub, not the "City of London" as a whole.
Yes, way better and using a humble tone, e.g. "Introverts are not smarter than extroverts. According to IQ scores, the two types are equally intelligent. And on many kinds of tasks, particularly those performed under time or social pressure or involving multitasking, extroverts do better."
If you knew what the problem was before the outage happened, and didn't consciously put the effort to prevent it, then oh well, that's professional negligence. Maybe not on you because you may not have the decision power to apply large-scale changes, but definitely somebody within the company. And if you didn't know what caused the outage, and you conducted some type of investigation to get at the heart of the problem, then you need a postmortem.
That's one of the main goals of a postmortem: document what the cause of the problem was, not just for you, but for all interested parties. If some human caused the issue, you need to document what happened and what should be done to prevent it from re-occurring. And fix it, of course.
Can't we all just assume from now on that anything bad that happens is because of some shitty CEO cost-cutting everything to line their pockets? Because 99% of the time that's what's happening.
I like the browsing atmosphere of the small bookstore. Also I find it hard to get past all the titles that are currently being hyped if I go to amazon. I read more old books than I do new ones. But if I have a title in mind that I want to buy right away, amazon is my first stop