System requirement specification vs functional one - separate docs?

Posted by user970696 on Programmers See other posts from Programmers or by user970696
Published on 2012-12-14T15:56:35Z Indexed on 2012/12/14 17:17 UTC
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Requirements

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specifications

A lot of sources (e.g. Wikipedia) mentiones System requirement specification and Functional specification as two separate entities. However, Wiegers in his book writes:

The software requirements specification is sometimes called a functional specification, a product specification...

This is very confusing for me as I thought FS describes just functions while SRS whole system. From this point of view, FS would contain both non functional and functional requirements and everything else.

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