It's interesting how the poster (at least, the submission seems like a conference poster) doesn't even mention one of the most important and commonly-used piece

It's interesting how the poster (at least, the submission seems like a conference poster) doesn't even mention one of the most important and commonly-used pieces of prior art in this medium: Xcode's Interface Builder storyboards. In fact, they work very similar to what the authors created: there's links between boards (representing segues between screens), links between UI and code (IBOutlets and IBActions).