My personal sense is business logic which involves processes with lots of steps rather than data transformation.

I’m unconvinced that code is the best way to describe business logic, so here we are! :)

(Code is probably the best way to encode business logic, but most users can’t read it or edit it, which makes it bad)

Good luck with your project. It is a tough problem you're solving, but hopefully your idea has wings.

Thanks! It's in a very narrow domain (Handset UI flows in Warehouse Management Systems) so i'm hoping that helps, but it's very domain specific and certainly not anything mainstream.