It is optimized for UI heavy applications and we’ve found it to be a simple but lightweight way to go from business objectives through use cases to detailed functional requirements in a meaningful way. Of course, it isn’t a silver bullet and is heavily influenced by everything from use cases to feature driven development, but we’re getting great results with it over at SystemsForge. Check out the article and let me know what you think!
I'll be posting more about our Intent Driven Design process later this year. In the meantime, I just caught a nice blog post on right-sizing user stories.