Hmm. I've never seen a requirements document for a 6-figure contract. I have seen some for low 5-figure ones though. One starting point could be the IEEE stan

Hmm. I've never seen a requirements document for a 6-figure contract. I have seen some for low 5-figure ones though. One starting point could be the IEEE standards (IEEE 830 and 1233) http://en.wikipedia.org/wiki/Software_requirements_specification http://en.wikipedia.org/wiki/Software_requirements_specifica... http://www.math.uaa.alaska.edu/~afkjm/cs401/IEEE830.pdf http://www.math.uaa.alaska.edu/~afkjm/cs401/IEEE830.pdf although it's old and superseded http://programmers.stackexchange.com/questions/159274/what-standard-superseded-830-1998 http://programmers.stackexchange.com/questions/159274/what-s... According to Stack Overflow "29148:2011 standard seems to replace the IEEE 830:1998." There are also plenty of books on requirements, like for example: Mastering the Requirements Process Second Edition by Suzanne Robertson, James Robertson (published by Addison Wesley Professional ) Edit: hopefully there are people here on HN that routinely either write or receive requirements documents of that magnitude and can help you more than I do :)