The Great Design was the main focus of the Hive generation starship.
The Great Design was originally devised as a way to find a new homeworld for the Hive species, although a later generation modified the Great Design to keep their people aboard the generation starship and not set foot on a planet. In the year 2371, Tork discovered the truth with assistance from the crew of Deep Space 9 and his late mentor Hosir. (DS9 novel: Objective: Bajor)