Earlier, I blogged about this series from Tyner Blain on Writing Good Requirements.  It was called the "Big Ten Rules" because they had ten rules on the subject.  Well, like the Big Ten conference, there are now eleven:

The Big Ten Rules - Writing Correct Requirements

Correctness in requirements is simply about getting it right. We wrote previously about how to apply use cases to creating correct requirements. Writing requirements correctly is as much about getting accurate information as it is about accurately documenting the information we gather.

But are they verifiably correct? The good folks at Tyner Blain lay it out on how to ensure that.  Definitely worth a read.