Sources of requirements? [closed]

Posted by user970696 on Programmers See other posts from Programmers or by user970696
Published on 2012-12-14T14:41:14Z Indexed on 2012/12/14 17:18 UTC
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documentation

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Requirements

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analysis

I was reading a book about SW engineering the other day and it went like:

Sources of both functional and non-functional requirements are:

law (for specific cases)

business and user requirements

etc. //what else then?

So the question is, what other sources of requirements there are when an analyst is gathering the information?

Lets consider a desktop app for mobile operator. As for the comment, I do not think this is a broad question as the books usually mention 1-2 sources. I would like to know more, if anyone can help.

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