This is a tool that will appeal to people who work with children who are writing stories, as it gives you the opportunity to create branched stories. You may remember the fantasy based books that were around in the 70s and 80s where you could make a choice and would flip to an appropriate page. This is the same sort of thing. It looked like a lot of fun.
Of course, it could also be used for trouble shooting, providing basic training and so on - or even as a guide around a library!