Next-up, interaction design thinking, visual design thinking and information design thinking. Design thinking in all of its incarnations.
“In the realm of user experience, disciplines and titles can take on different meanings. Determining buzzword jargon from actual, useful distinctions and processes is sometimes a bit tricky. The term Service Design has been with us for a while now. Some see it as just plain, good UX.”
(Marc Stickdorn a.k.a. @MrStickdorn ~ User Interface Engineering)