Greg Fullard has written a great two part blog discussing 20 things to consider when working with requirements.
You can find the article at:
Part 1: http://blogs.ittoolbox.com/cio/modeling/archives/20-checkpoints-to-ensure-that-your-requirements-work-part-1-of-2-16575
Part 2: http://blogs.ittoolbox.com/cio/modeling/archives/20-checkpoints-to-ensure-that-your-requirements-work-part-2-of-2-16695
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