Check out Stoy-splitting mistakes by noreply@blogger.com. Here is an excerpt:
Mike Cohn is a guy I respect for his practical experience which he uses to leaven (*) the theory of agile methods. To that end, consider his approach to not being too slavish to the construct of stories the first time they are written, to wit: it’s sometimes necessary to split a story.
But:…
The full article is available here.