title: What Makes a Great Functional Specification Great?
body: <p>What qualities made it so great, and what made it stand out compared to the not-so-great specs that you've had to deal with?  Or, if you've never worked with a good functional spec before, what sort of things would you expect in a great spec?</p>
  
  <p>Sorry this is obviously subjective but I'm creating a functional spec (not my first) and it just occurred to me that I may get some good ideas from the bright folks on SO!</p>