graphical user interfaces (GUI) using images (screenshots). -> But it has long way to go, it is too unstable before we can automate work under Graphic User Interface on windows/mac/*nix.
I created a demo to create Oracle database with Sikuli as follows, but don’t rely on it to do your work, fragile to crash or stop somewhere due to unknown reason. After all, it is in beta. However, it has bright feature to automate routine work if they build it seriously.